Wind farm operation support system, processing method

Abstract

To provide a wind farm operation supporting system capable of providing highly value-added operation supporting information.SOLUTION: There is provided a wind farm operation supporting system. A plurality of wind farms include a first wind farm and a plurality of other wind farms whose owner is different from that of the first wind farm. The wind farm operation supporting system comprises: a data acquisition unit for acquiring data on the first wind farm and data on the plurality of other wind farms; and an operation supporting information output unit that on the basis of the data on the plurality of other wind farms acquired by the data acquisition unit, outputs operation supporting information for supporting operation of the first wind farm.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This disclosure concerns a wind farm operation support system. Processing method Regarding. [Background technology]

[0002] Patent Document 1 describes transmitting operational data from multiple wind turbine systems to a reliable service system, which then manages that operational data. In this service system, a user system requests access to the operational data from the service system via a communication network for use in analyzing the operation of the wind turbine systems, and the service system determines whether to grant the user system's request according to an access policy. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Patent No. 7004667 [Overview of the project] [Problems that the invention aims to solve]

[0004] Previously, operational support information was provided to assist in the operation of wind farms based on data acquired from those farms. However, because the data used to generate this operational support information was limited, there were limitations to increasing the added value of the operational support information that could be provided.

[0005] In view of the circumstances described above, at least one embodiment of this disclosure aims to provide a wind farm operation support system capable of providing high value-added operation support information. [Means for solving the problem]

[0006] To achieve the above objectives, the wind farm operation support system according to at least one embodiment of this disclosure is A wind farm operation support system for supporting the operation of multiple wind farms, The aforementioned multiple wind farms include a first wind farm and multiple other wind farms that have different owners from the first wind farm. The aforementioned wind farm operation support system is A data acquisition unit that acquires data relating to the first wind farm and data relating to the plurality of other wind farms, An operation support information output unit outputs operation support information to support the operation of the first wind farm based on the data relating to the plurality of other wind farms acquired by the data acquisition unit, It is equipped with. [Effects of the Invention]

[0007] According to at least one embodiment of this disclosure, a wind farm operation support system is provided that is capable of providing high value-added operation support information. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic diagram of a wind farm operation support system 2 according to one embodiment. [Figure 2] This figure shows an example of operation support information displayed on the display screen 16a of the display unit 16 of the user terminal 15, and shows a portion of the list table T1 of the operating data of the wind farm 3. [Figure 3] This figure shows another example of the operational support information displayed on the display screen 16a of the display unit 16 of the user terminal 15. [Figure 4] This figure shows yet another example of the operational support information displayed on the display screen 16a of the display unit 16 of the user terminal 15. [Figure 5]It is a diagram showing an example of operation support information displayed on the display screen 16a of the display unit 16 of the user terminal 15, and shows a part of the list table T2 of the operation data of the wind farm 3. [Figure 6] It is a diagram showing an example of operation support information displayed on the display screen 16a of the display unit 16 of the user terminal 15, and shows a part of the list table T3 of the operation data of the wind farm 3. [Figure 7] It is a diagram showing an example of operation support information displayed on the display screen 16a of the display unit 16 of the user terminal 15, and shows a part of the list table T4 of the operation data of the wind farm 3. [Figure 8] It is a diagram showing an example of operation support information displayed on the display screen 16a of the display unit 16 of the user terminal 15. [Figure 9] It is a diagram showing an example of operation support information displayed on the display screen 16a of the display unit 16 of the user terminal 15. [Figure 10] It is a diagram showing yet another example of operation support information displayed on the display unit 16 of the user terminal 15. [Figure 11] It is a diagram showing yet another example of operation support information displayed on the display unit 16 of the user terminal 15. [Figure 12] It is a diagram showing yet another example of operation support information displayed on the display unit 16 of the user terminal 15. [Figure 13] It is a diagram showing yet another example of operation support information displayed on the display unit 16 of the user terminal 15. [Figure 14] It is a diagram showing yet another example of operation support information displayed on the display unit 16 of the user terminal 15. [Figure 15] It is a diagram showing yet another example of operation support information displayed on the display unit 16 of the user terminal 15. [Figure 16] It is a diagram showing yet another example of operation support information displayed on the display unit 16 of the user terminal 15. [Figure 17] It is a diagram showing yet another example of operation support information displayed on the display unit 16 of the user terminal 15. [Figure 18]This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 19] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 20] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 21] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the display screen 16a that is displayed when the user selects "Time during alarm occurrence by body part" in the diagram selection unit E9 on the screen shown in Figure 18. [Figure 22] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the display screen 16a that is displayed when the user selects "Number of alarm occurrences by part (per unit)" in the diagram selection unit E9 on the screen shown in Figure 18. [Figure 23] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the display screen 16a that is displayed when the user selects "Alarm duration by part (per unit)" in the diagram selection unit E9 on the screen shown in Figure 18. [Figure 24] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the screen that is displayed when the user selects "Alarm Matrix (Number of Times)" in the diagram selection unit E9 on the screen shown in Figure 18. [Figure 25] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the screen that is displayed when the display format switching unit E13 is operated on the screen shown in Figure 24. [Figure 26] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the screen displayed when the user selects "Alarm Matrix (Time)" in the diagram selection unit E9 on the screen shown in Figure 18. [Figure 27]This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the screen displayed when the display format switching unit E13 is operated on the screen shown in Figure 26. [Figure 28] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 29] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the screen that is displayed when the user selects "Alarm History" in the diagram selection unit E9 on the screen shown in Figure 18. [Figure 30] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 31] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 32] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 33] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 34] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 35] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 36] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 37] This figure shows an example of a maintenance record input menu that is displayed on the display unit 16 when a user inputs maintenance record data, which shows the work results of maintenance work on the wind turbine 5, into the user terminal 15. [Figure 38] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 39] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 40] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 41] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 42] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 43] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 44] This figure shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. [Figure 45] This figure shows an example of a general calculation flow for lost power generation. [Figure 46] This diagram explains how to determine the timing of repairs according to the severity of the malfunction, as well as the amount of lost power generation. [Figure 47] Figure 1 is a diagram illustrating an example of the configuration of the operation support device 12 in the wind farm operation support system 2 shown in Figure 1. [Figure 48] Figure 47 is a control flow diagram showing an example of output control of multiple wind farms 3 by the operation support device 12. [Figure 49] This diagram shows an example of the schematic configuration of each hardware component: wind turbine control device 4, remote monitoring PC 6, edge PC 8, common cloud 10, operation support device 12, multiple dedicated clouds 14, multiple user terminals 15, and owner terminal 18. [Figure 50] This figure shows an example of the content of an email that includes a link to access operational support information. [Modes for carrying out the invention]

[0009] Hereinafter, several embodiments of this disclosure will be described with reference to the attached drawings. However, the dimensions, materials, shapes, relative arrangements, etc., of the components described or shown in the drawings as embodiments are not intended to limit the scope of the invention, but are merely illustrative examples. For example, expressions describing relative or absolute arrangements such as "in a certain direction," "along a certain direction," "parallel," "orthogonal," "center," "concentric," or "coaxial" should not only strictly describe such arrangements, but also describe states of relative displacement with tolerances or angles or distances that allow for the same function to be achieved. For example, expressions such as "identical," "equal," and "homogeneous" that describe things being in an equal state not only describe a state of being strictly equal, but also describe a state in which there is a tolerance or a difference that is sufficient to achieve the same function. For example, expressions describing shapes such as squares or cylinders shall not only represent geometrically precise shapes such as squares or cylinders, but also shapes that include protrusions, chamfers, etc., to the extent that the same effect can be achieved. On the other hand, expressions such as "to possess," "to be equipped with," "to have," "to include," or "to have" a single component are not exclusive expressions that exclude the existence of other components.

[0010] (Outline configuration of the wind farm operation support system) Figure 1 is a schematic diagram of a wind farm operation support system 2 according to one embodiment. The wind farm operation support system 2 is a system for supporting the operation of multiple wind farms 3. In Figure 1, although some parts are omitted from the illustration, each of the multiple wind farms 3 that are supported by the wind farm operation support system 2 is a wind power generation facility equipped with one or more wind turbines 5. In Figure 1, the case in which the multiple wind farms 3 that are supported by the wind farm operation support system 2 consist of wind farm 3A, wind farm 3B, and wind farm 3C is illustrated as an example, but the number of wind farms 3 that are supported by the wind farm operation support system 2 may be any number of two or more. Hereinafter, "multiple wind farms 3" refers to wind farms 3A, wind farm 3B, and wind farm 3C that are supported by the wind farm operation support system 2.

[0011] As shown in Figure 1, the wind farm operation support system 2 includes a wind turbine control device 4, a remote monitoring PC 6 (remote monitoring terminal), an edge PC 8 (edge ​​terminal), a common cloud 10, a wind farm operation support device 12, multiple dedicated clouds 14, multiple user terminals 15, and an owner terminal 18.

[0012] The wind turbine control device 4 is installed for each wind turbine 5 in each of the multiple wind farms 3 and is configured to control the operation of the wind turbine 5.

[0013] The remote monitoring PC 6 is provided for each of the multiple wind farms 3 and is configured to collect and monitor operating data from each wind turbine 5 from the wind turbine control device 4 of each wind turbine 5. The remote monitoring PC 6 may be, for example, a database server and is configured to store and accumulate relevant information (including relevant information for each wind turbine of the same or similar model) within the monitored wind farm 3, and to provide necessary information as appropriate when a wind turbine alarm, malfunction, or abnormality occurs, and to display it on the operation screen. Here, "relevant information" includes the history of wind turbine alarms, malfunctions, and abnormalities, as well as information on emergency measures taken when these occur. Furthermore, when a wind turbine alarm, malfunction, or abnormality occurs, the remote monitoring PC 6 has a function to automatically create a report to the wind turbine supplier reporting the status of the alarm, malfunction, and abnormality, as well as information on emergency measures taken, and to notify the wind turbine manager using the remote monitoring PC 6's communication function.

[0014] An edge PC 8 is provided for each wind farm 3 in a group of wind farms 3. There may be one edge PC 8 per wind farm 3, or there may be multiple edge PC 8s per wind farm 3. The edge PC 8 is configured to continuously collect predetermined data related to the wind farm 3 (for example, operational data related to the operating status of the wind farm 3) in real time for the wind farm 3 in which the edge PC 8 is provided, generate a dataset of data for a predetermined period (for example, every day) at predetermined intervals (for example, every day), and upload the generated dataset for the predetermined period to a folder corresponding to the wind farm 3 in the common cloud 10 at predetermined intervals (for example, every day). Here, the data included in the dataset generated by the edge PC 8 includes information for each wind turbine, such as power generation amount, average wind speed, maximum wind speed, average wind direction, operating rate, equipment utilization rate, operating time, power generation time, standby time, downtime, and alarm downtime. The data included in the dataset generated by the edge PC8 may be data collected at intervals such as every minute, every 10 minutes, every hour, or every 24 hours. The edge PC8 generates the dataset by attaching a timestamp indicating the absolute time to each data point.

[0015] For example, the edge PC 8 may generate a dataset of one day's worth of data once a day and upload the generated dataset to the corresponding folder for wind farm 3 in the common cloud 10 once a day. In the example shown in Figure 1, the edge PC 8 corresponding to wind farm 3A continuously collects data from wind farm 3A, generates a dataset of one day's worth of data from wind farm 3A once a day, and uploads the generated dataset to a dedicated folder 11A for wind farm 3A in the common cloud 10 once a day. Similarly, the edge PC 8 (not shown) corresponding to wind farm 3B continuously collects data from wind farm 3B, generates a dataset of one day's worth of data from wind farm 3B once a day, and uploads the generated dataset to a dedicated folder 11B for wind farm 3B in the common cloud 10 once a day. The edge PC8, which supports Wind Farm 3C, continuously collects data from Wind Farm 3C, generates a dataset of one day's worth of data from Wind Farm 3C once a day, and uploads the generated dataset to a dedicated folder 11C for Wind Farm 3C in the common cloud 10 once a day.

[0016] Here, the dataset for one day includes, for example, time series data obtained by performing high-speed sampling at predetermined time intervals over a predetermined period of length (e.g., time series data collected over 100 seconds at time intervals of 0.5 milliseconds), the average value of the data over a predetermined period of length (e.g., 10 minutes), and information indicating the date and time an alarm occurred in Wind Farm 3 and the date and time when the alarm stopped and the system returned to a normal state.

[0017] The common cloud 10 is a cloud storage system provided for multiple wind farms 3A to 3C. In the illustrated example, one common cloud 10 is provided for all wind farms 3 that are supported by the wind farm operation support system 2. The common cloud 10 contains dedicated folders 11A to 11C for each of the multiple wind farms 3A to 3C. Dedicated folder 11A is a folder dedicated to wind farm 3A, and data only for wind farm 3A is uploaded from edge PC 8. Dedicated folder 11B is a folder dedicated to wind farm 3B, and data only for wind farm 3B is uploaded from edge PC 8. Dedicated folder 11C is a folder dedicated to wind farm 3C, and data only for wind farm 3C is uploaded from edge PC 8. In this way, data for each of the multiple wind farms 3A to 3C is stored in separate dedicated folders 11 to 11C provided within the single common cloud 10.

[0018] The wind farm operation support device 12 includes a data acquisition unit 20, a database unit 22, an operation support information output unit 24, and a data output unit 26 (upload unit). The operation support information output unit 24 includes a statistical value calculation unit 30, an anomaly detection unit 32, and a lost power generation amount calculation unit 34.

[0019] The data acquisition unit 20 acquires data for each of the multiple wind farms 3 from the common cloud 10 by downloading data for each of the multiple wind farms 3 uploaded to the common cloud 10 (for example, operating data related to the operating status of the wind farm 3) at predetermined intervals (for example, at intervals equal to the interval at which data is uploaded from the edge PC 8 to the common cloud 10, and once a day in the above example). The data acquisition unit 20 acquires data for each of the multiple wind farms 3 from the common cloud 10 by downloading data for each of the multiple wind farms 3 uploaded to the common cloud 10 from each of the dedicated folders 11A to 11C corresponding to each wind farm 3.

[0020] The database unit 22 stores and accumulates data for each of the multiple wind farms 3 acquired by the data acquisition unit 20. The data acquisition unit 20 automatically deletes the data for the wind farm 3 (one day's worth of data in the example above) from the common cloud 10 once it has been saved to the database unit 22.

[0021] The operation support information output unit 24 analyzes the data for each of the multiple wind farms 3 acquired by the data acquisition unit 20 in a predetermined manner and outputs operation support information for each wind farm 3 to support the operation of each of the multiple wind farms 3. Here, the predetermined manner includes, for example, time-series analysis, cross-sectional analysis, statistical analysis, etc., and includes correlation analysis between data, comparison and correlation analysis for each wind turbine, comparison and correlation analysis for each wind farm 3, comparison and correlation analysis with each reference data, etc. The statistical value calculation unit 30 is configured to calculate, for example, statistical values ​​for each period, statistical values ​​for each wind farm 3, statistical values ​​for each unit of one or more wind turbines constituting the wind farm 3, and statistical values ​​for each wind turbine model, etc., for the data for each of the multiple wind farms 3. The statistical value calculation unit 30 is configured to calculate, for example, statistical values ​​for each period and for each wind turbine model, etc., for the data for any one or more of the multiple wind farms 3. The statistical values ​​calculated by the statistical value calculation unit 30 may be, for example, the mean, median, mode, maximum, minimum, variance, standard deviation, skewness, or kurtosis. Details of the functions of the operation support information output unit 24 will be described later.

[0022] The data output unit 26 encrypts the operation support information for each wind farm 3 output by the operation support information output unit 24, and uploads each encrypted piece of operation support information to the dedicated cloud 14 for the wind farm 3 that corresponds to that operation support information. In the illustrated example, the multiple dedicated clouds 14 consist of a dedicated cloud 14A for wind farm 3A associated with wind farm 3A, a dedicated cloud 14B for wind farm 3B associated with wind farm 3B, and a dedicated cloud 14C for wind farm 3C associated with wind farm 3C. The data output unit 26 is configured to upload operation support information for supporting the operation of wind farm 3A only to the dedicated cloud 14A associated with wind farm 3A, and not to the dedicated clouds 14B and 14C which are not associated with wind farm 3A. The data output unit 26 is configured to upload operational support information for supporting the operation of wind farm 3B only to the dedicated cloud 14B associated with wind farm 3B, and not to the dedicated clouds 14A and 14C which are not associated with wind farm 3B. The data output unit 26 is configured to upload operational support information for supporting the operation of wind farm 3C only to the dedicated cloud 14C associated with wind farm 3C, and not to the dedicated clouds 14A and 14B which are not associated with wind farm 3C.

[0023] Multiple user terminals 15 are connected to each of the multiple dedicated clouds 14 via a communication network (not shown). In the illustrated example, the multiple user terminals 15 include user terminal 15A, user terminal 15B, and user terminal 15C. User terminal 15A is connected to the dedicated cloud 14A via the communication network, user terminal 15B is connected to the dedicated cloud 14B via the communication network, and user terminal 15C is connected to the dedicated cloud 14C via the communication network. User terminal 15A can obtain operational support information for the wind farm 3A uploaded to the dedicated cloud 14A using an access key, and display this operational support information on the display unit 16 (display, etc.) of user terminal 15A so that users of the wind farm 3A (users who own and manage the wind farm 3A) can view it. User terminal 15B can retrieve operational support information for wind farm 3B uploaded to the dedicated cloud 14B using an access key, and display this operational support information on the display unit 16 of user terminal 15B for viewing by users of wind farm 3B (users who own and manage wind farm 3B). User terminal 15C can retrieve operational support information for wind farm 3C uploaded to the dedicated cloud 14C using an access key, and display this operational support information on the display unit 16 of user terminal 15C for viewing by users of wind farm 3C (users who own and manage wind farm 3C). Multiple user terminals 15A, 15B, and 15C may each be provided in multiple wind farms 3A, 3B, and 3C, or they may be provided in a location separate from the multiple wind farms 3A to 3C. Each of the multiple user terminals 15A to 15C may be a mobile terminal such as a tablet or smartphone, or a fixed terminal such as a desktop PC.

[0024] In the wind farm operation support system 2, the common cloud 10 and the wind farm operation support device 12 handle data related to multiple wind farms 3A, 3B, and 3C across the board. The wind farm operation support device 12 has the function of comparing necessary data and analysis results, as well as comparing them with initially set and updated reference data (thresholds). On the other hand, each of the multiple dedicated clouds 14 is individually and independently provided for each corresponding wind farm 3, as described above. Users can access only the operation support information uploaded to the dedicated cloud 14 for the wind farm 3 associated with them, using an access key, from among the operation support information uploaded to each of the multiple dedicated clouds 14. Each of the multiple dedicated clouds 14 is managed so that information is not disclosed to each other, and the wind farm operation support device 12 is configured to output only predetermined information from the information it holds to the corresponding user terminal 15.

[0025] According to the wind farm operation support system 2 shown in Figure 1, data related to each of the multiple wind farms 3 is analyzed, operation support information is output for each wind farm 3, and this operation support information can be uploaded to a dedicated cloud 14 associated with the corresponding wind farm 3. Therefore, the operation support information corresponding to each wind farm 3 can only be accessed by the dedicated cloud 14 associated with that wind farm 3, and cannot be accessed by other dedicated clouds 14. For this reason, compared to managing operation support information on a common server device used by multiple users associated with multiple wind farms 3, for example, the risk of operation support information for each wind farm 3 being accessed by users of other wind farms 3 can be reduced, and a high level of information security can be easily achieved. In addition, since a dedicated cloud 14 is provided for each wind farm 3, even if the number of wind farms 3 targeted by the wind farm operation support system 2 increases, for example, it is possible to add dedicated clouds 14 as needed to upload the operation support information for the increased number of wind farms 3, thus achieving high scalability. Furthermore, by using the dedicated cloud 14, access from mobile devices such as smartphones can also be supported.

[0026] Furthermore, by providing a common cloud 10 in the data transfer path that transfers data from each edge PC 8 of multiple wind farms 3 to the wind farm operation support device 12, even if the number of wind farms 3 increases, the data transfer path between the common cloud 10 and the wind farm operation support device 12 remains a single line, thus maintaining information security.

[0027] Furthermore, by automatically deleting the data from the wind farm 3 (one day's worth of operating data in the example above) that has been saved to the database unit 22 from the common cloud 10, the risk of the operating data of each wind farm 3 uploaded to the common cloud 10 being acquired by anything other than the wind farm operation support device 12 can be reduced.

[0028] Furthermore, by restricting the data flow between the common cloud 10 and the wind farm operation support device 12 to only one direction, from the common cloud 10 to the wind farm operation support device 12, it is possible to suppress the accidental overwriting of operational data uploaded to the common cloud 10 and to enhance information security.

[0029] (Example of operational support information) Figure 2 is a diagram showing an example of operational support information displayed on the display screen 16a of the display unit 16 of the user terminal 15, and shows a list table T1 of wind farm operating data. In the example shown in Figure 2, the operational support information displayed on the display screen 16a of the display unit 16 includes a list table T1 that displays the amount of power generated, on-site power consumption, average wind speed, maximum wind speed, operating rate, equipment utilization rate, operating time, standby time, downtime, etc., and alarm downtime for each wind turbine constituting the wind farm for a specified period specified by the user. Operating time refers to the time when the wind turbine rotor (not shown) is rotating. Standby time refers to the time when the wind turbine rotor is stopped rotating because the wind speed is below the cut-in wind speed or above the cut-out wind speed. Operating rate is the ratio obtained by dividing the value obtained by adding the standby time to the operating time by the total time of the specified period. Equipment utilization rate is the percentage of the amount of power actually generated by the wind turbine during the specified period relative to the amount of power generated if the wind turbine 5 were to be operated at rated output continuously during the specified period. "Stop time, etc." refers to the time when the wind turbine is stopped due to an alarm, malfunction, or a stop order from the operator. "Alarm stop time" refers to the time when the wind turbine is stopped due to an alarm. In the operating data table T1 shown in Figure 2, the average wind speed may be the average of sample data of average wind speed over the specified period, for example, 10 minutes; the operating time may be the sum of the operating time from data over the specified period, for example, 10 minutes; the standby time may be the sum of the standby time from data over the specified period, for example, 10 minutes; and the alarm stop time may be the sum of the alarm stop time from data over the specified period, for example, 10 minutes.

[0030] In the example shown in Figure 2, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed. The user can adjust the period of data displayed on the display unit 16 in days by directly entering numerical values ​​for the start and end dates of the period in the period specification unit E1 or by operating a slider. In the illustrated example, the period specification unit E1 also allows the range of data to be displayed on the display unit 16 to be specified on a monthly basis using checkboxes. Furthermore, for each numerical value in the list table T1 shown in Figure 2, for example, values ​​higher than the average value for each item and values ​​lower than the average value for each item may be displayed in different colors. In addition, for each wind turbine unit, the planned value may be predicted from past power generation amounts, and the anomaly detection unit 32 (see Figure 1) may automatically detect signs of anomalies in each unit based on the deviation between the planned value and the actual value.

[0031] Figure 3 shows another example of the operational support information displayed on the display screen 16a of the display unit 16 of the user terminal 15. In the example shown in Figure 3, the operational support information displayed on the display screen 16a of the display unit 16 includes information showing the amount of power generated and the average wind speed for each wind turbine that makes up the wind farm, along with the location of each wind turbine on a map, for a specified period specified by the user. The operational support information shown in Figure 3 indicates the location of each wind turbine by displaying an icon (a circular icon in the example shown) at the location of each of the multiple wind turbines that make up the wind farm on the map M1 displayed on the display unit 16, and includes a graph G1 that shows the amount of power generated and the average wind speed for each wind turbine that makes up the wind farm during the specified period, along with the location of each wind turbine. In the example shown in Figure 3, the above-mentioned period specification unit E1 is displayed on the display screen of the display unit 16, and the user can adjust the period of data displayed on the display unit 16 by specifying the period in the period specification unit E1 in days. Furthermore, in the illustrated example, the operational support information displayed on the display unit 16 includes the total amount of electricity generated and the equipment utilization rate of the wind farm 3 during the specified period specified in the period specification unit E1.

[0032] In the example shown in Figure 3, the size of the icons on the map displayed on the display unit 16 may have a positive correlation with the amount of power generated by the corresponding wind turbine 5 unit. Also, in the example shown in Figure 3, the amount of power generated by each wind turbine 5 unit during the specified period is shown in a bar graph, and the average wind speed is shown in a line graph, making it easy to compare the amount of power generated and the wind speed for each unit. Furthermore, regarding the display screen shown in Figure 3, not only the actual amount of power generated by each wind turbine 5 unit during the specified period but also the planned value is automatically calculated and displayed simultaneously, enabling comparison with the achievement status of power generation.

[0033] Figure 4 shows yet another example of the operational support information displayed on the display screen 16a of the display unit 16 of the user terminal 15. In the example shown in Figure 4, the operational support information displayed on the display screen of the display unit 16 includes a graph G2 showing the monthly amount of power generated for each year for a specified period specified by the user, and a graph G3 showing the monthly average wind speed for each year during the specified period. In the example shown, the display screen of the display unit 16 also displays the amount of power generated and the average wind speed for each year during the specified period specified by the user. In the example shown in Figure 4, the user terminal 15 displays the period specification unit E1 on the display unit 16, and the user can adjust the period of data displayed on the display unit 16 by specifying the period in the period specification unit E1 in years. In addition, the display screen of the display unit 16 displays a unit selection unit E2 for selecting the unit number of the wind turbines that make up the wind farm, and by selecting a wind turbine unit in the unit selection unit E2, the user can display the data of the selected unit as a graph on the display unit 16.

[0034] In the example shown in Figure 4, etc., it is possible to freely select the wind turbine to be evaluated from the unit selection unit E2, which is displayed on the display screen 16a of the display unit 16. For example, by selecting two adjacent wind turbines in a wind farm and comparing the data of the two wind turbines or calculating the difference in the data of the two wind turbines, it is possible to easily grasp whether there is any performance degradation, abnormalities, or the extent of such degradation in the selected wind turbines. Furthermore, by comparing the data of the wind turbine selected in the unit selection unit E2 with the data of a standard wind turbine that serves as the basis for evaluation, or by calculating the difference in this data, it is possible to easily grasp whether there is any aging change in the wind turbine to be evaluated and the extent of such aging change.

[0035] In the example shown in Figure 4, for example, the amount of electricity generated each month could be displayed as a bar graph with different colors for each year, which would make it easier to track, compare, and estimate the trends in power generation performance throughout the year.

[0036] Figure 5 is a diagram showing an example of operational support information displayed on the display screen 16a of the display unit 16 of the user terminal 15, and shows a part of the list table T2 of wind farm operating data. In the example shown in Figure 5, the operational support information displayed on the display unit 16 includes a list table T2 that displays a list of wind turbine power generation amount, on-site power consumption, average wind speed, maximum wind speed, operating rate, equipment utilization rate, operating time, standby time, downtime, etc., and alarm downtime for each wind farm and wind turbine model selected by the user for a specified period specified by the user.

[0037] In the example shown in Figure 5, the display screen 16a of the display unit 16 displays a period specification section E1 for specifying the period of data to be displayed. The user can adjust the period of data displayed on the display unit 16 in days by directly entering numerical values ​​for the start and end dates of the period in the period specification section E1 or by operating a slider. The display screen 16a of the display unit 16 also displays a model selection section E3 for selecting one or more models from among several wind turbine models, and a wind farm selection section E4 for selecting one or more wind farms from among several wind farms associated with the user (multiple wind farms owned and managed by the user using the user terminal 15). In the illustrated example, the model selection section E3 displays checkboxes corresponding to models A, B, and C of the wind turbine 5, allowing the user to select one or more models from among models A, B, and C of the wind turbine by operating the checkboxes. Furthermore, the wind farm selection section E4 displays checkboxes corresponding to each site of multiple wind farms, allowing users to select a wind farm by manipulating the checkboxes to select one or more sites from among the sites of multiple wind farms (Site A, Site B, Site C).

[0038] In the example shown in Figure 5, since Model A is selected in the Model Selection Unit E3 and Sites A, B, and C are selected in the Wind Farm Selection Unit E4, the above list T2 on the display screen 16a displays the average power generation amount, average power consumption within the facility, average wind speed, maximum wind speed, average operating rate, average equipment utilization rate, average operating time, average standby time, average downtime, and average alarm downtime for each of the Model A wind turbines included in the wind farm at Site A (Site A Unit 1 and Site A Unit 2), the average wind turbines included in the wind farm at Site B (Site B Unit 1 and Site B Unit 2), and the average wind turbines included in the wind farm at Site C (Site C Unit 1 and Site C Unit 2).

[0039] Figure 6 shows an example of operation support information displayed on the display screen 16a of the display unit 16 of the user terminal 15, and shows a portion of the list table T3 of the operating data of the wind farm 3. In the example shown in Figure 6, the display screen 16a of the display unit 16 displays a period selection unit E1 for specifying the period of data to be displayed, a model selection unit E3 for selecting one or more models from multiple models of the wind turbine 5, an item selection unit E5 for selecting one or more items from the local site, other sites, and examples of the same model, and a list table T3.

[0040] In the example shown in Figure 6, the model selection unit E3 displays checkboxes corresponding to models A, B, and C of the wind turbine 5, allowing the user to select one or more models from these three by checking the checkboxes. The item selection unit E5 allows the user to select one or more items from among "Own Site," which indicates the site of the wind farm owned and managed by the user using the user terminal 15; "Other Sites," which indicates the sites of multiple wind farms excluding the user's own site, among the multiple wind farms for which the wind farm operation support device 12 manages the operation data; and "Examples of the Same Model," which shows examples of the same model as the wind farm included in the user's own site.

[0041] In the example shown in Figure 6, table T3 shows the average values ​​for each of the following for the wind turbine's power generation amount, on-site power consumption, average wind speed, operating rate, equipment utilization rate, operating time, standby time, downtime, etc., and alarm downtime during the period specified in the period specification unit E1: the average values ​​for the models selected in the model selection unit E3 at the wind farm at the local site (first wind farm); the average values ​​for the models selected in the model selection unit E3 at wind farms at other sites (multiple other wind farms located at multiple other sites); and the average values ​​for the same models included in the wind farm at the local site at wind farms at other sites (multiple other wind farms located at multiple other sites). Furthermore, Table T3 shows the maximum wind speed of the wind turbines during the period specified in Period Specification Section E1, including the maximum value of the model selected in Model Selection Section E3 at the site's own wind farm (First Wind Farm), the maximum value of the model selected in Model Selection Section E3 at other sites' wind farms (multiple other wind farms located at multiple other sites), and the maximum value of the same model included in the site's own wind farm at other sites' wind farms (multiple other wind farms located at multiple other sites).

[0042] In the example shown in Figure 6, models A and B are selected in the model selection unit E3, and the local site, other sites, and examples of the same model are selected in the item selection unit E5. For example, if the wind farm at the local site only contains model A turbines, the local site item in the list table T3 on the display screen 16a will show the average values ​​for each of the following for the wind turbine's power generation amount, on-site power consumption, average wind speed, operating rate, equipment utilization rate, operating time, standby time, downtime, etc., and alarm downtime for the wind turbines at the local site's wind farm, as well as the maximum value for the wind turbine's maximum wind speed for the wind turbines at the local site's wind farm during the period specified in the period specification unit E1. Furthermore, in the "Other Sites" section of the list table T3 on display screen 16a, the average values ​​for each of the following are shown for the wind turbine's power generation amount, on-site power consumption, average wind speed, operating rate, equipment utilization rate, operating time, standby time, downtime, etc., and alarm downtime for Model A and Model B wind turbines included in the other site's wind farm. The maximum wind speed for the wind turbine during the period specified in the period specification section E1 is shown for Model A and Model B wind turbines included in the other site's wind farm. Furthermore, in the "Example of Same Model" section of the list table T3 on display screen 16a, the average values ​​for each of the following are shown for Model A wind turbines in the other site's wind farm, which are the same model as the wind turbines included in the own site's wind farm. The maximum wind speed for the wind turbine during the period specified in the period specification section E1 is shown for Model A wind turbines in the other site's wind farm.

[0043] Each of the above average values ​​shown in list T3 (the average value of the models selected by the model selection unit E3 at the local wind farm, the average value of the models selected by the model selection unit E3 at other wind farms, and the average value of the same models at other wind farms as those included in the local wind farm) may be calculated by the statistical value calculation unit 30 (see Figure 1). In this case, the statistical value calculation unit 30 calculates each of the above average values ​​shown in list T3 based on the data for each wind turbine at each wind farm acquired by the data acquisition unit 20 and stored in the database unit 22 (for example, data showing power generation amount, on-site power consumption amount, average wind speed, operating rate, equipment utilization rate, operating time, standby time, downtime, etc., and alarm downtime, etc.) and the model information indicating the model of each wind turbine at each wind farm stored in the database unit 22. The operation support information output unit 24 generates the data for list T3 by associating each of these average values ​​calculated by the statistical value calculation unit 30 and outputs operation support information including list T3. Furthermore, the data output unit 26 uploads operational support information (operational support information to support the operation of the wind farm at the local site), including the list T3 shown in Figure 6, to the dedicated cloud 14 of the local site's wind farm (for example, if the local site's wind farm is wind farm 3A shown in Figure 1, then to the dedicated cloud 14A).

[0044] For example, the statistical value calculation unit 30 may calculate the above average value for the models selected by the model selection unit E3 at the site's wind farm, as shown in list T3, based on the data for each wind turbine at the site's wind farm (first wind farm) acquired by the data acquisition unit 20 and stored in the database unit 22 (for example, data showing power generation amount, on-site power consumption amount, average wind speed, operating rate, equipment utilization rate, operating time, standby time, downtime, etc., and alarm downtime, etc.), and model information indicating the models of each wind turbine at the site's wind farm stored in the database unit 22. Furthermore, the statistical value calculation unit 30 may calculate the above average value of the models selected by the model selection unit E3 at the other wind farms (multiple other wind farms installed at multiple other sites) as shown in list T3, based on the data for each wind turbine at other wind farms (multiple other wind farms installed at multiple other sites) acquired by the data acquisition unit 20 and stored in the database unit 22 (for example, data showing power generation amount, on-site power consumption amount, average wind speed, operating rate, equipment utilization rate, operating time, standby time, downtime, etc., and alarm downtime, etc.), and model information indicating the model of each wind turbine at the other wind farms stored in the database unit 22. Furthermore, the statistical value calculation unit 30 may calculate the above average value for the same models of wind turbines in other wind farms (multiple other wind farms located in multiple other sites) as shown in list T3, based on the data for each wind turbine of other wind farms (multiple other wind farms located in multiple other sites) acquired by the data acquisition unit 20 and stored in the database unit 22 (for example, data showing power generation amount, on-site power consumption amount, average wind speed, operating rate, equipment utilization rate, operating time, standby time, downtime, etc., and alarm downtime, etc.), and model information indicating the model of each wind turbine in each wind farm stored in the database unit 22.

[0045] As illustrated in Figure 6, the Wind Farm Operation Support System 2 outputs operational support information to support the operation of the site's wind farm (first wind farm) based on data from multiple other wind farms. This allows for the output of operational support information that includes insights not obtainable from the site's wind farm alone (for example, trends in data from multiple other wind farms obtained by performing time-series analysis, cross-sectional analysis, or statistical analysis on data from multiple other wind farms), thus providing high-value operational support information.

[0046] Figure 7 shows an example of operation support information displayed on the display screen 16a of the display unit 16 of the user terminal 15, and shows a portion of the list table T4 of the operating data of the wind farm 3. In the example shown in Figure 7, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, a model selection unit E3 for selecting one or more models from multiple models of wind turbine 5, a wind farm selection unit E4 for selecting one or more wind farms from multiple wind farms associated with the user (multiple wind farms owned and managed by the user), and a list table T4.

[0047] In the example shown in Figure 7, the model selection unit E3 allows the user to select one or more wind turbine models A and B by operating checkboxes. Similarly, the wind farm selection unit E4 allows the user to select one or more sites (sites A to I) of multiple wind farms associated with the user by operating checkboxes.

[0048] In the example shown in Figure 7, Table T4 shows the average values ​​for each wind farm selected in Wind Farm Selection E4 and for each model selected in Model Selection E3 for the wind turbine's power generation, on-site power consumption, average wind speed, operating rate, equipment utilization rate, operating time, standby time, downtime, and alarm downtime during the period specified in Period Specification E1. Table T4 also shows the maximum wind speed for each wind farm selected in Wind Farm Selection E4 and for each model selected in Model Selection E3 during the period specified in Period Specification E1.

[0049] In the example shown in Figure 7, Model A is selected in the Model Selection Unit E3, and the Wind Farm at Site A and the Wind Farm at Site G are selected in the Wind Farm Selection Unit E4. Therefore, Table T4 shows the average values ​​for each of the following for the wind turbines during the period specified in the Period Specification Unit E1: power generation, on-site power consumption, average wind speed, operating rate, equipment utilization rate, operating time, standby time, downtime, and alarm downtime, for Model A at the Wind Farm at Site A and for Model A at the Wind Farm at Site G. Table T4 also shows the maximum wind speed for the wind turbines during the period specified in the Period Specification Unit E1: the maximum value for Model A at the Wind Farm at Site A and for Model A at the Wind Farm at Site G.

[0050] In the list table T4, the above average values ​​for each model selected in the model selection unit E3 at the wind farm selected in the wind farm selection unit E4 may be calculated by the statistical value calculation unit 30 (see Figure 1). In this case, the statistical value calculation unit 30 calculates each of the above average values ​​shown in the list table T4 based on the data for each wind turbine of each wind farm (data showing power generation amount, average wind speed, operating rate, equipment utilization rate, operating time, standby time, downtime, etc., and alarm downtime, etc.) acquired by the data acquisition unit 20 and stored in the database unit 22, and model information indicating the model of each wind turbine of each wind farm stored in the database unit 22. The data output unit 26 also uploads the operation support information, including the list table T4 shown in Figure 7, to the dedicated cloud 14 of the wind farm at the local site (for example, if the wind farm at the local site is wind farm 3A, then the dedicated cloud 14A).

[0051] Figure 8 shows an example of operational support information displayed on the display screen 16a of the display unit 16 of the user terminal 15. In the example shown in Figure 8, the operational support information displayed on the display screen 16a of the display unit 16 includes information showing the amount of power generated, average wind speed, and capacity utilization rate for each wind farm and wind turbine model selected by the user, along with the location of the wind farm on a map, for a specified period specified by the user. The operational support information shown in Figure 8 indicates the location of the wind farm by displaying an icon (a circular icon in the illustrated example) at the location of the wind farm 3 on the map M2 displayed on the display unit 16, and further includes a graph G4 that shows the average wind speed and capacity utilization rate for each wind farm and wind turbine model for the specified period. In the example shown in Figure 8, the display screen 16a of the display unit 16 further displays a period specification section E1 for specifying the period of data to be displayed, a model selection section E3 for selecting one or more models from multiple models of wind turbine 5, and a wind farm selection section E6 for selecting one or more wind farms from multiple wind farms associated with the user (multiple wind farms owned and managed by the user).

[0052] In the example shown in Figure 8, the model selection unit E3 allows the user to select one or more models from wind turbine models A, B, and C by operating checkboxes. The wind farm selection unit E6 also allows the user to select one or more sites from multiple wind farm sites associated with the user (site A, site B) and other sites (wind farm sites in the target area that the user neither owns nor manages, among the multiple wind farms whose operation data is managed by the wind farm operation support device 12) by operating checkboxes.

[0053] In the example shown in Figure 8, model A is selected in the model selection unit E3, and sites A and B are selected in the wind farm selection unit E6. Therefore, icons are displayed on map M2 indicating the locations of the wind farms at site A and site B. Here, the size of the icons has a positive correlation with the average power generation amount of the model selected in the model selection unit E3 at the wind farm corresponding to the icon. Additionally, icons are displayed on map M2 indicating the average power generation amount of model A selected in the model selection unit E3 at the wind farms located in the target area.

[0054] Furthermore, Graph G4 shows the average values ​​for the capacity factor and average wind speed at the wind farms at Site A and Site B, respectively, selected by the wind farm selection unit E6, for the A model selected by the model selection unit E3. In addition, it shows the average values ​​for the capacity factor and average wind speed at all wind farms in the target area for the A model selected by the model selection unit E3. The average values ​​for the power generation amount, capacity factor, and average wind speed shown in Figure 8, for the models selected by the selection unit E3 at the wind farms selected by the wind farm selection unit E6, may be calculated by the statistical value calculation unit 30 (see Figure 1). In this case, the statistical value calculation unit 30 calculates each of the above average values ​​shown in Figure 8 based on the data for each wind turbine at each wind farm (data showing power generation amount, average wind speed, capacity factor, etc.) acquired by the data acquisition unit 20 and stored in the database unit 22, and the model information indicating the model of each wind turbine at each wind farm stored in the database unit 22. Furthermore, the data output unit 26 uploads the operational support information shown in Figure 8 to the dedicated cloud 14 of the wind farm at its own site.

[0055] Figure 9 shows an example of operational support information displayed on the display screen 16a of the display unit 16 of the user terminal 15. In the example shown in Figure 9, the operational support information displayed on the display screen 16a of the display unit 16 includes a bar graph G5 showing the capacity utilization rate for each wind turbine unit in multiple wind farms associated with the user, sorted from highest to lowest capacity utilization rate, and a line graph G6 showing the average wind speed for each wind turbine unit, sorted from highest to lowest capacity utilization rate. In addition, the operational support information displayed on the display screen 16a of the display unit 16 also shows the average capacity utilization rate for each wind turbine unit in multiple wind farms associated with the user, along with graphs G5 and G6.

[0056] Figure 10 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 10, the operational support information displayed on the display unit 16 includes a graph G7 showing the frequency distribution of wind direction (distribution of the number of data points for each wind direction), a graph G8 showing the frequency distribution of wind speed (distribution of the number of data points for each average wind speed), a graph G9 showing the distribution of the 10-minute average bin mean of the wind turbine generator output for each wind speed, and a graph G10 showing the 10-minute average distribution of the wind turbine generator output for each wind speed.

[0057] In the example shown in Figure 10, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, and a unit selection unit E2 for selecting the unit number of the wind turbines that make up the wind farm. When the user specifies a period in the period specification unit E1 and selects a wind turbine unit in the unit selection unit E2, the data for the unit selected in the unit selection unit E2 for the period specified in the period specification unit E1 is displayed graphically on the display screen 16a for each of the graphs G7 to G10.

[0058] In the example shown in Figure 10, for graph G7 showing the frequency distribution of wind direction, for example, the average wind direction for a predetermined period (e.g., 10 minutes) for each wind turbine can be plotted on a radar chart to visualize the wind directions that occur most frequently. Similarly, for graph G8 showing the frequency distribution of wind speed, for example, the frequency of occurrence for each predetermined wind speed interval (e.g., each interval of average wind speed in 1 m / s increments) for the wind speed data for a predetermined period (e.g., 10 minutes) for each wind turbine can be aggregated as a frequency distribution and visualized. Furthermore, for graph G9 showing generator output (bin-averaged) against wind speed, for example, only the data from the predetermined period (e.g., 10 minutes) during which the power was connected to the power grid can be used as valid data, and the generator output for each average wind speed can be BIN-processed and displayed as a power curve. In the example shown, graph G9 shows a power curve showing the relationship between wind speed and measured generator output, and a power curve showing the relationship between wind speed and planned generator output. Furthermore, with respect to the graph G10 of generator output against wind speed, for example, only the data from when each wind turbine was connected to the power grid during a predetermined period (e.g., 10 minutes) may be used as valid data, and the generator output for each average wind speed may be displayed as a power curve in a scatter plot. In the illustrated example, graph G10 shows a power curve showing the relationship between wind speed and measured generator output, and a power curve showing the relationship between wind speed and planned generator output.

[0059] Figure 11 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 11, the operational support information displayed on the display unit 16 includes a graph G11 showing the distribution of 10-minute average bin-averages of turbulence intensity (turbulence strength) against wind speed for each wind direction, a graph G12 showing the distribution of 10-minute average bin-averages of turbulence intensity against wind speed for each unit, a graph G13 showing the frequency distribution (number of data points) of wind direction, and a graph G14 showing the 10-minute average bin-averages of the generator output of the wind turbine against wind speed.

[0060] In the example shown in Figure 11, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, a unit selection unit E2 for selecting the unit number of the wind turbines that make up the wind farm, and a wind direction selection unit E7 for selecting a wind direction from among multiple wind directions. On the display screen 16a, when the user specifies a period using the period specification unit E1, selects a wind turbine unit using the unit selection unit E2, and selects a wind direction using the wind direction selection unit E7, the data for each of the graphs G11 to G14 for the period specified by the period specification unit E1, the unit number selected by the unit selection unit E2, and the wind direction selected by the wind direction selection unit E7 is displayed graphically on the display screen 16a.

[0061] In the example shown in Figure 11, for graph G11, which shows the bin-averaged distribution of turbulence intensity against wind speed, the wind direction may be selected in advance from the checkbox in the wind direction selection unit E7. Then, for the wind speed data for a predetermined period (e.g., 10 minutes) of each wind turbine, the wind speed turbulence (standard deviation of wind speed) for each predetermined wind speed interval (e.g., each interval of average wind speed in 1 m / s increments) may be BIN-processed and displayed as a line graph. In the illustrated example, the threshold values ​​for turbulence intensity against wind speed are also displayed for both graph G11 and graph G12. Furthermore, for graph G14, which shows the bin-averaged 10-minute average of the generator output of the wind turbines against wind speed, the wind direction may be selected in advance from the checkbox in the wind direction selection unit E7. Then, from the data for a predetermined period (e.g., 10 minutes) of each wind turbine, only the data that is connected to the power grid during that predetermined period may be used as valid data, and the generator output for each average wind speed may be BIN-processed and displayed as a power curve. Furthermore, graph G14 shows a power curve illustrating the relationship between wind speed and measured generator output, as well as a power curve illustrating the relationship between wind speed and planned generator output.

[0062] Figure 12 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 12, the operational support information displayed on the display unit 16 includes a graph G15 showing the frequency distribution of wind speed (distribution of the number of data points relative to the average wind speed), a graph G16 showing the distribution of the bin mean of the 10-minute average of the wind turbine generator output relative to wind speed, and a graph G17 showing the distribution of the 10-minute average of the wind turbine generator output relative to wind speed.

[0063] In the example shown in Figure 12, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, a model selection unit E3 for selecting one or more models from multiple wind turbine models, and an item selection unit E5 for selecting one or more items from the local site, other sites, and examples of the same model. Here, the local site is the site of the wind farm owned and managed by the user, as described above, other sites are the sites of wind farms other than the local site among the multiple wind farms for which the wind farm operation support device 12 manages the operation data, and examples of the same model are examples of data from wind farms at other sites that are the same model as the wind farm at the local site.

[0064] On display screen 16a, the user can specify a period in the period specification section E1, select a wind turbine model in the model selection section E3, and select items for their own site, other sites, or examples of the same model in the item selection section E5. As a result, data for each of graphs G15 to G17, for the period specified in the period specification section E1, the model selected in the model selection section E3, and the items selected in the item selection section E5, will be displayed graphically on display screen 16a.

[0065] In the example shown in Figure 12, Model A is selected in the Model Selection section E3, and Local Site, Other Sites, and Examples of the Same Model are selected in the Item Selection section E5. Therefore, the display screen 16a shows, for each of graphs G15 to G17, the average value of Model A wind turbines at the local wind farm, the average value of Model A wind turbines at other sites' wind farms, and the average value of Model A wind turbines (the same model as the local wind turbines) at other sites' wind farms (in the example shown in Figure 12, the graph resulting from selecting the Examples of the Same Model item matches the graph resulting from selecting the Other Sites item).

[0066] Each of the above average values ​​for each model selected in the model selection unit E3 for the item selected in the item selection unit E5 may be calculated by the statistical value calculation unit 30 (see Figure 1). In the display screen 16a shown in Figure 12, each of the above average values ​​for each model selected in the model selection unit E3 for the item selected in the item selection unit E5 may be calculated by the statistical value calculation unit 30 (see Figure 1). In this case, the statistical value calculation unit 30 calculates each of the above average values ​​shown in Figure 12 based on the data for each wind turbine of each wind farm (data showing average wind speed, generator output, wind speed frequency, etc.) acquired by the data acquisition unit 20 and stored in the database unit 22, and the model information indicating the model of each wind turbine of each wind farm stored in the database unit 22. The data output unit 26 also uploads the operation support information shown in Figure 12 to the dedicated cloud 14 of the wind farm at the site (for example, if the wind farm at the site is wind farm 3A, then the dedicated cloud 14A).

[0067] For example, the statistical value calculation unit 30 may calculate the average value of the generator output and the wind speed frequency for each average wind speed for each model selected by the model selection unit E3 at the site's wind farm, as shown in graphs G15 to G17, based on the data for each wind turbine at the site's wind farm (first wind farm) acquired by the data acquisition unit 20 and stored in the database unit 22 (data showing average wind speed, generator output, and average wind speed, etc.) and model information indicating the model of each wind turbine at the site's wind farm stored in the database unit 22. Furthermore, the statistical value calculation unit 30 may calculate the average value of the generator output and the wind speed frequency for each average wind speed for each model selected by the model selection unit E3 in the wind farms of other sites shown in graphs G15 to G17, based on the data for each wind turbine of wind farms at other sites (multiple other wind farms set up at multiple other sites) acquired by the data acquisition unit 20 and stored in the database unit 22 (data showing average wind speed, generator output, and average wind speed, etc.) and model information indicating the model of each wind turbine at wind farms at other sites stored in the database unit 22. Furthermore, the statistical value calculation unit 30 may calculate the above average values ​​for each wind turbine at other wind farms (multiple other wind farms located at multiple other sites) for the same wind turbine models as those included in the local wind farm shown in graphs G15 to G17, based on the data for each wind turbine at other wind farms (multiple other wind farms located at multiple other sites) acquired by the data acquisition unit 20 and stored in the database unit 22 (data showing average wind speed, generator output, average wind speed, etc.) and the model information indicating the wind turbine models of each wind farm stored in the database unit 22.

[0068] As illustrated in Figure 12, the Wind Farm Operation Support System 2 outputs operational support information to support the operation of the wind farm at its own site (the first wind farm) based on data from wind farms at multiple other sites. This allows for the output of operational support information that includes insights that cannot be obtained from the wind farm at its own site alone (for example, trends in data from multiple other wind farms obtained by performing time-series analysis, cross-sectional analysis, or statistical analysis on data from multiple other wind farms), thus providing high-value operational support information.

[0069] Figure 13 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 13, the operational support information displayed on the display unit 16 includes a graph G18 showing the frequency distribution of wind speed (distribution of the number of data points relative to the average wind speed), a graph G19 showing the distribution of the bin mean of the 10-minute average of the wind turbine generator output relative to wind speed, and a graph G20 showing the distribution of the 10-minute average of the wind turbine generator output relative to wind speed.

[0070] In the example shown in Figure 13, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, a model selection unit E3 for selecting one or more models from multiple wind turbine models, and a wind farm selection unit E8 for selecting one or more wind farms from multiple wind farms associated with the user.

[0071] On display screen 16a, when the user specifies a period in the period specification section E1, selects a wind turbine model in the model selection section E3, and selects a wind farm in the wind farm selection section E8, the data for the model selected in the model selection section E3 during the period specified in the period specification section E1 is displayed graphically on display screen 16a for each of the wind farms selected in the wind farm selection section E8 for each of the graphs G15 to G17.

[0072] In the example shown in Figure 13, the Model Selection Unit E3 selects Model A, and the Wind Farm Selection Unit E8 selects the wind farm at Site A, the wind farm at Site B, and the wind farm at Site C from among the multiple wind farms associated with the user. Therefore, the display screen 16a shows the average values ​​for the wind turbines of Model A at Wind Farm A, the wind farm at Wind Farm B, and the wind farm at Wind Farm C for each of the graphs G18 to G20. Each of the above average values ​​for each model selected in the Model Selection Unit E3 at the wind farm selected in the Wind Farm Selection Unit E8 is calculated by the Statistical Value Calculation Unit 30 (see Figure 1).

[0073] Figure 14 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 14, the operational support information displayed on the display unit 16 includes a graph G21 showing the frequency distribution of wind direction (the distribution of the number of data points for each wind direction), a graph G22 showing the distribution of the bin-averaged 10-minute average of the wind turbine generator output against wind speed, and a graph G23 showing the distribution of the 10-minute average of the wind turbine generator output against wind speed.

[0074] In the example shown in Figure 14, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, a model selection unit E3 for selecting one or more models from multiple wind turbine models, and a wind farm selection unit E4 for selecting one or more wind farms from multiple wind farms associated with the user.

[0075] On display screen 16a, when the user specifies a period in the period specification section E1, selects a wind turbine model in the model selection section E3, and selects a wind farm in the wind farm selection section E4, the data for the model selected in the model selection section E3 during the period specified in the period specification section E1 is displayed graphically on display screen 16a for each of the graphs G21 to G23, for each wind farm selected in the wind farm selection section E4.

[0076] In the example shown in Figure 14, Model A is selected in the Model Selection Unit E3, and from among the multiple wind farms associated with the user, the wind farm at Site A, Site B, Site C, and Site D are selected in the Wind Farm Selection Unit E4. Therefore, the display screen 16a shows, for each of graphs G21 to G23, the average value of the wind turbines of Model A at the wind farm at Site A, the average value of the wind turbines of Model A at the wind farm at Site B, the average value of the wind turbines of Model A at the wind farm at Site C, and the average value of the wind turbines of Model A at the wind farm at Site D. In addition, in the illustrated example, graphs G22 and G23 each show the data for the model selected in the Model Selection Unit E3 at the wind farm selected in the Wind Farm Selection Unit E4, as well as the average value of the wind turbines of Model A at multiple wind farms, including other sites for which the Wind Farm Operation Support Device 12 manages the operation data. Each of the above average values ​​for each model selected in the model selection unit E3 within the wind farm selected in the wind farm selection unit E4 is calculated by the statistical value calculation unit 30 (see Figure 1).

[0077] Figure 15 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 15, the operational support information displayed on the display unit 16 includes graph G24 showing the distribution of the bin-averaged 10-minute values ​​of the pitch angle, which is the actual blade pitch angle of the wind turbine blade, against wind speed, and graph G25 showing the distribution of the 10-minute average values ​​of the pitch angle against wind speed.

[0078] In the example shown in Figure 15, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, a model selection unit E3 for selecting one or more models from multiple wind turbine models, and an item selection unit E5 for selecting one or more items from the local site, other sites, and examples of the same model. Here, the local site is the site of the wind farm owned and managed by the user using the user terminal 15, as described above; other sites are the sites of wind farms other than the local site among the multiple wind farms for which the wind farm operation support device 12 manages the operation data; and examples of the same model are examples of data from wind farms at other sites that are the same model as those included in the local wind farm.

[0079] On display screen 16a, when the user specifies a period in the period specification section E1, selects a wind turbine model in the model selection section E3, and selects items for the local site, other sites, or examples of the same model in the item selection section E5, data for graphs G24 and G25, respectively, for the period specified in the period specification section E1, the model selected in the model selection section E3, and the items selected in the item selection section E5 are displayed graphically on display screen 16a.

[0080] In the example shown in Figure 15, Model A is selected in the Model Selection Unit E3, and Local Site, Other Sites, and Examples of the Same Model are selected in the Item Selection Unit E5. Therefore, the display screen 16a shows the average values ​​for Model A wind turbines at the local wind farm, the average values ​​for Model A wind turbines at other sites' wind farms, and the average values ​​for Model A wind turbines (the same model as the local wind turbines) at other sites' wind farms, respectively, for graphs G24 and G25 (in the example shown in Figure 15, the graph resulting from selecting the Examples of the Same Model item matches the graph resulting from selecting the item at other sites). Each of the above average values ​​for each model selected in the Model Selection Unit E3 for the item selected in the Item Selection Unit E5 is calculated by the Statistical Value Calculation Unit 30 (see Figure 1).

[0081] For example, the statistical value calculation unit 30 may calculate the average pitch angle at each average wind speed for each model selected by the model selection unit E3 in the wind farm at the local site, as shown in graphs G15 to G17, based on the data for each wind turbine at the local site's wind farm (first wind farm) acquired by the data acquisition unit 20 and stored in the database unit 22 (data showing average wind speed, pitch angle, etc.) and model information indicating the model of each wind turbine at the local site's wind farm stored in the database unit 22. Alternatively, the statistical value calculation unit 30 may calculate the average pitch angle at each average wind speed for each model selected by the model selection unit E3 in the wind farm at the local site, as shown in graphs G15 to G17, based on the data for each wind turbine at other sites' wind farms (multiple other wind farms provided at multiple other sites) acquired by the data acquisition unit 20 and stored in the database unit 22 (data showing average wind speed, pitch angle, etc.) and model information indicating the model of each wind turbine at the other sites' wind farm stored in the database unit 22. Furthermore, the statistical value calculation unit 30 may calculate the average pitch angle at each average wind speed for each model in the wind farms at other sites (multiple other wind farms, each located at multiple other sites) for the same models as those included in the wind farm at the local site shown in graphs G15 to G17, based on the data for each wind turbine at other wind farms (multiple other wind farms, each located at multiple other sites) acquired by the data acquisition unit 20 and stored in the database unit 22 (data showing average wind speed, pitch angle, etc.) and model information indicating the model of each wind turbine at each wind farm stored in the database unit 22.

[0082] As illustrated in Figure 15, the Wind Farm Operation Support System 2 outputs operational support information to support the operation of the site's wind farm (first wind farm) based on data from multiple other wind farms. This allows for the output of operational support information that includes insights not obtainable from the site's wind farm alone (for example, trends in data from multiple other wind farms obtained by performing time-series analysis, cross-sectional analysis, or statistical analysis on data from multiple other wind farms), thus providing high-value operational support information.

[0083] Figure 16 shows yet another example of operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 16, the operational support information displayed on the display unit 16 includes a graph G26 showing the average wind speed and power generation amount for each wind turbine unit over a predetermined period (e.g., one month or one year), and a graph G27 showing the average wind speed and power generation amount for each wind farm (i.e., each wind farm site) over the same predetermined period.

[0084] In the example shown in Figure 16, graph G26 shows the average wind speed and power generation amount for each wind turbine of the first type (for example, type A in the example above) included in the multiple wind farms for which the wind farm operation support device 12 manages the operating data, for each wind turbine unit of the first type. In addition, the display area of ​​graph G26 on the display screen 16a of the display unit 16 shows an approximate straight line or approximate curve that approximates the correlation between the average wind speed and power generation amount for the multiple wind turbines of the first type included in the multiple wind farms for which the wind farm operation support device 12 manages the operating data, for the predetermined period.

[0085] This approximate line or approximate curve may be calculated by the operation support information output unit 24 in the configuration shown in Figure 1, for example. In this case, for example, the data acquisition unit 20 acquires time-series data of wind speed and power generation amount for each wind turbine included in wind farms 3A to 3C from the common cloud 10 and stores it in the database unit 22, and the operation support information output unit 24 may output operation support information including the graph G26 and the approximate line or approximate curve based on the time-series data of wind speed and power generation amount for each wind turbine included in wind farms 3A to 3C acquired from the database unit 22 and information indicating the model of each wind turbine in wind farms 3A to 3C stored in the database unit 22. In addition, in some embodiments, as shown in Figure 16, the graph G26 is a scatter plot, and the points representing data for wind turbines in wind farms associated with the user (wind turbines at the user's own site) and the points representing data for wind turbines in wind farms not associated with the user (wind turbines at other sites) may be distinguished from each other by their color, shape, or size.

[0086] In the example shown in Figure 16, graph G27 shows the average wind speed and power generation amount for each wind farm of a first-type wind turbine (for example, type A in the example above) included in multiple wind farms for which the wind farm operation support device 12 manages the operating data, over the predetermined period. Furthermore, the display area of ​​graph G27 on the display screen 16a of the display unit 16 shows an approximate straight line or approximate curve that approximates the correlation between the average wind speed and power generation amount of the first-type wind turbines included in multiple wind farms for which the wind farm operation support device 12 manages the operating data, over the predetermined period.

[0087] This approximate straight line or approximate curve may be calculated by the operation support information output unit 24 in the configuration shown in Figure 1, for example. In this case, for example, the data acquisition unit 20 acquires time-series data of wind speed and power generation amount for each wind turbine included in wind farms 3A to 3C from the common cloud 10 and stores it in the database unit 22, and the operation support information output unit 24 may output operation support information including the graph G27 and the approximate straight line or approximate curve based on the time-series data of wind speed and power generation amount for each wind turbine included in wind farms 3A to 3C acquired from the database unit 22 and model information indicating the model of each wind turbine in wind farms 3A to 3C stored in the database unit 22. In some embodiments, as shown in Figure 16, the graph G27 is a scatter plot, and the points representing data for wind farms associated with the user (wind farms at the user's own site) and the points representing data for wind farms not associated with the user (wind farms at other sites) may have different colors, shapes, or sizes so that they can be distinguished from each other. In addition, the approximate straight line may be determined using, for example, the least squares method.

[0088] According to the operational support information, including graph G26 shown in Figure 16, it becomes possible to compare the amount of electricity generated between wind turbines of the same model. Furthermore, the performance of the wind turbines at one's own wind farm (relationship between average wind speed and amount of electricity generated) can be judged by comparing it with an approximate straight line or curve that approximates the correlation between the average wind speed and amount of electricity generated for wind turbines of the same model.

[0089] Furthermore, according to the operational support information, including graph G27 shown in Figure 16, it becomes possible to compare the performance of the same type of wind turbine across multiple wind farms, and to determine the performance of the wind turbines at one's own wind farm based on a comparison with an approximate straight line or curve that approximates the correlation between the average wind speed and the amount of electricity generated by wind turbines of the same type.

[0090] Furthermore, as shown in Figure 16, by displaying graphs G26 and G27 side by side on the display screen 16a of the display unit 16, it is possible to analyze, for example, whether the superiority or inferiority of wind turbine performance is due to individual differences in wind turbines or to the wind farm site. However, graphs G26 and G27 do not necessarily have to be displayed on the same display screen 16a; for example, only one of graphs G26 or G27 may be displayed on the display screen 16a.

[0091] Figure 17 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 17, the operational support information displayed on the display unit 16 includes a graph G28 showing the average wind speed and power generation amount for each wind farm over a predetermined period (e.g., one month or one year) for the first type of wind turbine (e.g., type A in the above example), and a graph G29 showing the average wind speed and power generation amount for each wind farm over the same predetermined period for the second type of wind turbine (e.g., type B in the above example).

[0092] In the example shown in Figure 17, graph G28 shows the average wind speed and power generation amount for each wind farm of a first-type wind turbine (for example, type A in the above example) included in multiple wind farms for which the wind farm operation support device 12 manages the operating data, over the predetermined period. Furthermore, the display area of ​​graph G28 on the display screen 16a of the display unit 16 shows an approximate straight line or approximate curve that approximates the correlation between the average wind speed and power generation amount of the first-type wind turbine included in multiple wind farms for which the wind farm operation support device 12 manages the operating data, over the predetermined period.

[0093] This approximate line or approximate curve may be calculated by the operation support information output unit 24 in the configuration shown in Figure 1, for example. In this case, for example, the data acquisition unit 20 acquires time-series data of wind speed and power generation amount for each wind turbine included in wind farms 3A to 3C from the common cloud 10 and stores it in the database unit 22, and the operation support information output unit 24 may output operation support information including the graph G28 and the approximate line or approximate curve based on the time-series data of wind speed and power generation amount for each wind turbine included in wind farms 3A to 3C acquired from the database unit 22 and information indicating the model of each wind turbine in wind farms 3A to 3C stored in the database unit 22. In addition, in some embodiments, as shown in Figure 17, the graph G28 is a scatter plot, and the points representing data for wind farms associated with the user (wind farms at the user's own site) and the points representing data for wind farms not associated with the user (wind farms at other sites) may be distinguished from each other by their color, shape, or size.

[0094] In the example shown in Figure 17, graph G29 shows the average wind speed and power generation amount for each wind farm of a second-type wind turbine (for example, type B in the example above) included in multiple wind farms for which the wind farm operation support device 12 manages the operating data, over the predetermined period. Furthermore, the display area of ​​graph G29 on the display screen 16a of the display unit 16 shows an approximate straight line or approximate curve that approximates the correlation between the average wind speed and power generation amount for the second-type wind turbines included in multiple wind farms for which the wind farm operation support device 12 manages the operating data, over the predetermined period.

[0095] This approximate line or approximate curve may be calculated by the operation support information output unit 24 in the configuration shown in Figure 1, for example. In this case, for example, the data acquisition unit 20 acquires time-series data of wind speed and power generation amount for each wind turbine included in wind farms 3A to 3C from the common cloud 10 and stores it in the database unit 22, and the operation support information output unit 24 may output operation support information including the graph G29 and the approximate line or approximate curve based on the time-series data of wind speed and power generation amount for each wind turbine included in wind farms 3A to 3C acquired from the database unit 22 and information indicating the model of each wind turbine in wind farms 3A to 3C stored in the database unit 22. In addition, in some embodiments, as shown in Figure 16, the graph G29 is a scatter plot, and the points representing data for wind farms associated with the user (wind farms at the user's own site) and the points representing data for wind farms not associated with the user (wind farms at other sites) may be distinguished from each other by their color, shape, or size.

[0096] According to the operational support information, including graphs G28 and G29 shown in Figure 17, it becomes possible to compare the performance of multiple wind turbine models (model A and model B in the above example) across multiple wind farms. Furthermore, for each of the above multiple wind turbine models (model A and model B in the above example), the performance of the wind turbines at the site's wind farm can be determined by comparing it with an approximate straight line or curve that approximates the correlation between the average wind speed and power generation of wind turbines of the same model.

[0097] Figure 18 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 18, the operational support information displayed on the display screen 16a of the display unit 16 includes information regarding the alarm history for each wind turbine 5 during a period specified by the user. In the illustrated example, the display screen 16a of the display unit 16 shows the figure selection unit E9. The figure selection unit E9 allows the user to select a figure to display on the display screen 16a from among the following: a figure showing the number of alarm occurrences by wind turbine part, a figure showing the duration of alarm occurrences by wind turbine part, a figure showing the number of alarm occurrences by wind turbine part (per unit), a figure showing the duration of alarm occurrences by wind turbine part (per unit), a figure showing the wind turbine alarm matrix (number of occurrences), a figure showing the wind turbine alarm matrix (duration), and a figure showing the wind turbine alarm history. The figure selected by the user from the options shown in the figure selection unit E9 is displayed on the display screen 16a as operational support information (information regarding the alarm history).

[0098] In the example shown in Figure 18, the diagram selection unit E9 has selected a diagram showing the number of alarm occurrences for each part, and the alarm history information displayed on the display unit 16 includes the number of alarm occurrences for each alarm name for each part of the wind turbine (e.g., blade pitch control equipment, speed increaser, generator, auxiliary motor, or yaw drive device, etc.) part A, part B, part C, part D, part E, part F, part G, part H, and part I. The alarm history information may also include links to detailed information such as detection information and occurrence history of the alarm, or links to troubleshooting manuals associated with the alarm name. In the example shown, the display unit 16 displays, as alarm history information, a list of the top 10 alarm occurrences for each alarm name for the wind turbine unit selected in the unit selection unit E2, and a list of alarm occurrences for each part of the wind turbine. In the example shown in Figure 18, the display screen 16a displays a period selection unit E1 for specifying the period of data to be displayed, and a unit selection unit E2 for selecting the wind turbine units that make up the wind farm. On the display screen 16a, when the user specifies a period in the period specification section E1 and selects a wind turbine unit in the unit selection section E2, information regarding the alarm history for the period specified in the period specification section E1 and the unit selected in the unit selection section E2 is displayed on the display screen 16a.

[0099] Figure 19 shows yet another example of operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 19, the operational support information displayed on the display screen 16a of the display unit 16 includes a list table T5 showing the number of alarm occurrences per wind farm per day, a graph G30 showing the number of alarm occurrences per wind farm, and a graph G31 showing the number of alarm occurrences per alarm name.

[0100] In the example shown in Figure 19, the display screen 16a of the display unit 16 displays a period selection unit E1 for specifying the period of data to be displayed, a model selection unit E3 for selecting one or more models from multiple wind turbine models, a wind farm selection unit E4 for selecting one or more wind farms from multiple wind farms associated with the user, and an alarm name selection unit E10. The display screen 16a also displays a recovery status selection unit E11 for filtering alarms in cases where analysis is not required, such as during maintenance or long-term shutdown, and an occurrence status selection unit E12 for selecting data in which an alarm occurred during operation and data in which an alarm occurred during maintenance.

[0101] On display screen 16a, when the user specifies a period in the period specification section E1, selects a wind turbine model in the model selection section E3, and selects a wind farm in the wind farm selection section E4, data for the period specified in the period specification section E1, the model selected in the model selection section E3, and the wind farm selected in the wind farm selection section E4 are displayed on display screen 16a for each of the above table T5, graph G30, and graph G31.

[0102] In the example shown in Figure 19, Model A is selected in the Model Selection Unit E3, and the Wind Farm Selection Unit E4 selects the wind farms at Site A, Site B, Site C, Site D, Site E, and Site F from among the multiple wind farms associated with the user. Therefore, the display screen 16a shows the wind turbine data for Model A at each of the wind farms from Site A to Site F for each of the above list table T5, graph G30, and graph G31. In addition, if an alarm name is selected in the Alarm Name Selection Unit E10, only the number of alarm occurrences for the selected alarm name will be displayed in graph G31.

[0103] Figure 20 shows yet another example of the operation support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 20, the operation support information displayed on the display screen 16a of the display unit 16 includes a graph G32 showing the operating performance for each wind farm, and a list T6 showing the alarm name, alarm occurrence time, recovery time, and alarm duration for each wind turbine. In the illustrated example, the operating performance for each wind farm shown in graph G32 includes operating time, standby time, downtime, alarm downtime, and power generation amount.

[0104] In the example shown in Figure 20, the display screen 16a of the display unit 16 displays a period selection unit E1 for specifying the period of data to be displayed, a model selection unit E3 for selecting one or more models from multiple wind turbine models, a wind farm selection unit E4 for selecting one or more wind farms from multiple wind farms associated with the user, and an alarm name selection unit E10.

[0105] On display screen 16a, when the user specifies a period in the period specification section E1, selects a wind turbine model in the model selection section E3, and selects a wind farm in the wind farm selection section E4, data for the period specified in the period specification section E1, the model selected in the model selection section E3, and the wind farm selected in the wind farm selection section E4 are displayed on display screen 16a for each of the above table T6 and graph G32.

[0106] In the example shown in Figure 20, the model selection unit E3 has selected models A, B, and C, and the wind farm selection unit E4 has selected the wind farms at sites A through I from among the multiple wind farms associated with the user. Therefore, the display screen 16a shows the wind turbine data for model A at each of the wind farms at sites A through I for each of the above list table T6, graph G32, and graph G33. In addition, if an alarm name is selected in the alarm name selection unit E10, the list table T6 will display the alarm occurrence time, recovery time, etc. for the selected alarm name.

[0107] Figure 21 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the display screen 16a that is displayed when the user selects "Time during alarm occurrence by body part" in the diagram selection unit E9 on the screen shown in Figure 18.

[0108] In the example shown in Figure 21, the operational support information (information regarding alarm history) displayed on the display screen 16a of the display unit 16 includes the duration of each alarm for each alarm name for each part of the wind turbine (e.g., blade pitch control equipment, speed increaser, generator, auxiliary motor, or yaw drive device, etc.) part A, part B, part C, part D, part E, part F, part G, part H, and part I. In the illustrated example, the display unit 16 also displays, as information regarding alarm history, a list of the top 10 alarm durations for each alarm name for the wind turbine selected by the machine selection unit E2, and a list of the duration of each alarm for each part of the wind turbine. In addition, in the example shown in Figure 21, the display screen 16a displays a period specification unit E1 for specifying the period of data to be displayed, and a machine selection unit E2 for selecting the wind turbines that make up the wind farm. On the display screen 16a, when the user specifies a period in the period specification section E1 and selects a wind turbine unit in the unit selection section E2, the alarm duration for each part of the wind turbine for the period specified in the period specification section E1 and the unit selected in the unit selection section E2 is displayed on the display screen 16a.

[0109] Figure 22 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the display screen 16a that is displayed when the user selects "Number of alarm occurrences by part (per unit)" in the diagram selection unit E9 on the screen shown in Figure 18.

[0110] In the example shown in Figure 22, the operational support information (information regarding alarm history) displayed on the display screen 16a of the display unit 16 includes the number of alarm occurrences for each alarm name for each part of the wind turbine, such as the blade pitch control equipment, speed increaser, generator, auxiliary motor, yaw drive device, main shaft brake, main switch, GO unit related (related to the blade pitch control unit), and protection system related. In the illustrated example, the display unit 16 also displays, as information regarding alarm history, a list of the top 10 alarm occurrences for each alarm name for the wind turbine selected in the unit selection unit E2, and a list of alarm occurrences for each part of the wind turbine. In addition, in the example shown in Figure 22, the display screen 16a also displays a period selection unit E1 for specifying the period of data to be displayed, and a unit selection unit E2 for selecting the wind turbines that make up the wind farm. On the display screen 16a, when the user specifies a period in the period specification section E1 and selects a wind turbine unit in the unit selection section E2, the number of alarm occurrences for each part for the period specified in the period specification section E1 and the unit selected in the unit selection section E2 is displayed on the display screen 16a.

[0111] Figure 23 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the display screen 16a that is displayed when the user selects "Alarm duration by part (per unit)" in the diagram selection unit E9 on the screen shown in Figure 18.

[0112] In the example shown in Figure 23, the operational support information (information regarding alarm history) displayed on the display screen 16a of the display unit 16 includes the duration of each alarm for each alarm name for each part of the wind turbine, such as the blade pitch control equipment, speed increaser, generator, auxiliary motor, yaw drive unit, main shaft brake, main switch, GO unit related (related to the blade pitch control unit), and protection system related. In the illustrated example, the display unit 16 also displays, as information regarding alarm history, a list of the top 10 alarm durations for each alarm name for the wind turbine selected in the unit selection unit E2, and a list of alarm durations for each part of the wind turbine. In the example shown in Figure 22, the display screen 16a also displays a period specification unit E1 for specifying the period of data to be displayed, and a unit selection unit E2 for selecting the wind turbines that make up the wind farm. On the display screen 16a, when the user specifies a period in the period specification section E1 and selects a wind turbine unit in the unit selection section E2, the alarm occurrence times for each part for the period specified in the period specification section E1 and the unit selected in the unit selection section E2 are displayed on the display screen 16a.

[0113] Figure 24 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the screen displayed when the user selects "Alarm Matrix (Number of Times)" in the diagram selection unit E9 on the screen shown in Figure 18.

[0114] In the example shown in Figure 24, the operational support information (information regarding alarm history) displayed on the display unit 16 includes a list T7 that lists the number of alarm occurrences for each alarm number by date, a list T8 that lists the number of alarm occurrences for each alarm name, a list T9 that lists the number of alarm occurrences for each wind turbine unit and alarm number, a graph G33 that shows the number of alarm occurrences for each alarm number (color-coded by unit), and a graph G34 that shows the number of alarm occurrences for each wind turbine unit (color-coded by alarm). Here, the alarm number is identification information for identifying an alarm, and each alarm number is assigned an alarm name. In addition, in the example shown in Figure 24, the display screen 16a displays a period specification unit E1 for specifying the period of data to be displayed, and a recovery status selection unit E11 for filtering alarms that do not require analysis, such as during maintenance or long-term shutdown. On display screen 16a, when the user specifies a period in the period specification section E1, the data for the period specified in the period specification section E1 is displayed on display screen 16a for each of the following: list table T7, list table T8, list table T9, graph G33, and graph G34.

[0115] Furthermore, the display screen 16a shown in Figure 24 displays a display format switching unit E13 for changing the display format of tables or graphs. By operating the display format switching unit E13, the bar graph G34 and the list table T8 are changed to donut graphs G35 and G36, as shown in Figure 25. Graph G35 shown in Figure 25 is a donut graph showing the percentage of alarm occurrences for each wind turbine unit, and graph G36 is a donut graph showing the percentage of alarm occurrences for each alarm name.

[0116] Figure 26 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the screen displayed when the user selects "Alarm Matrix (Time)" in the diagram selection unit E9 on the screen shown in Figure 18.

[0117] In the example shown in Figure 26, the operational support information (information regarding alarm history) displayed on the display unit 16 includes a list T10 that lists the alarm occurrence times for each alarm number by date, a list T11 that lists the alarm occurrence times for each alarm name, a list T12 that lists the alarm occurrence times for each wind turbine unit and alarm number, a graph G37 that shows the alarm occurrence times for each alarm number (color-coded by unit), and a graph G38 that shows the alarm occurrence times for each wind turbine unit (color-coded by alarm). Here, the alarm number is identification information for identifying an alarm, and each alarm number is assigned an alarm name. In the example shown in Figure 26, the display screen 16a also displays a period specification unit E1 for specifying the period of data to be displayed. By specifying a period in the period specification unit E1 on the display screen 16a, the data for the period specified in the period specification unit E1 is displayed on the display screen 16a for each of the lists T10, T11, T12, graph G37, and graph G38.

[0118] Furthermore, the display screen 16a shown in Figure 26 displays a display format switching unit E13 for changing the display format of tables or graphs. By operating the display format switching unit E13, the bar graph G38 and the list table T11 are changed to donut graphs G39 and G40, respectively, as shown in Figure 27. Graph G39 in Figure 27 is a donut graph showing the percentage of alarm occurrence time for each alarm name, and graph G40 is a donut graph showing the percentage of alarm occurrence time for each wind turbine unit.

[0119] In some embodiments, as shown in Figure 28, for example, each of the tables T7 to T12 and each of the graphs G35 to G37 shown in Figures 24 to 27 may be displayed as a Pareto chart combining a bar graph arranged in descending order of alarm occurrence frequency or alarm occurrence time, and a line graph representing the cumulative percentage. In the example shown in Figure 28, the number of alarm occurrences for each alarm name is displayed as a Pareto chart (graph G41 in Figure 28).

[0120] Figure 29 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15, and shows an example of the screen that is displayed when the user selects "Alarm History" in the diagram selection unit E9 on the screen shown in Figure 18.

[0121] In the example shown in Figure 29, the operational support information (information regarding alarm history) displayed on the display unit 16 includes a list T13 that displays the time the alarm occurred, the name of the alarm, the time the alarm was reset, the duration of the alarm, and the number of the wind turbine that issued the alarm, in chronological order.

[0122] In the example shown in Figure 26, the display screen 16a displays a period specification section E1 for specifying the period of data to be displayed, a unit selection section E2 for selecting the unit number of the wind turbines that make up the wind farm, and a recovery status selection section E11 for filtering alarms in cases where analysis is not required, such as during maintenance or long-term shutdown. When the user specifies a period in the period specification section E1 and selects a wind turbine unit in the unit selection section E2 on the display screen 16a, the data for the period specified in the period specification section E1 and the unit selected in the unit selection section E2 are displayed in list table T13. In addition, if an alarm name is selected in the alarm name selection section E10, only the data related to the selected alarm name is displayed in list table T13.

[0123] Figure 30 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 30, the operational support information displayed on the display unit 16 includes a graph G42 showing time-series data of the generator output for each wind turbine unit during a period specified by the user, and a graph G43 showing time-series data of the deviation level of the generator output.

[0124] In the example shown in Figure 30, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, and a unit selection unit E2 for selecting the unit number of the wind turbines that make up the wind farm. On the display screen 16a, when the user specifies a period using the period specification unit E1 and selects a wind turbine unit using the unit selection unit E2, data for the period specified in the period specification unit E1 and the unit number selected in the unit selection unit E2 are displayed on the display screen 16a for graphs G42 and G43, respectively.

[0125] In the illustrated example, the upper part of the display screen 16a of the display unit 16 displays the maximum and minimum values ​​of the generator output deviation level, as well as the number of data points where the generator output deviation level is above an upper limit (threshold) for determining whether or not there is an abnormality, and the number of data points where it is below a lower limit (threshold). In this way, the degree of abnormality of the wind turbine can be quantified, for example, as the generator output deviation level, and the degree of abnormality of the wind turbine can be visualized by plotting this deviation level on a graph. Furthermore, for example, if the generator output deviation level exceeds a threshold indicating an abnormality during the process of changing over time, the abnormality detection unit 32 (see Figure 1) can detect the abnormality.

[0126] Figure 31 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 31, the operational support information displayed on the display unit 16 includes a graph G44 showing the relationship between wind speed and pitch fluctuation (10-minute average) for each wind turbine unit for a specified period specified by the user, a graph G45 showing the relationship between wind speed and the maximum value of the bin for pitch fluctuation (10-minute average) for each wind turbine unit, and a graph G46 showing the time-series change of the maximum value of pitch fluctuation for each wind turbine unit.

[0127] In the example shown in Figure 31, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, and a unit selection unit E2 for selecting the unit number of the wind turbines that make up the wind farm. On the display screen 16a, when the user specifies a period using the period specification unit E1 and selects a wind turbine unit using the unit selection unit E2, data for the period specified in the period specification unit E1 and the unit number selected in the unit selection unit E2 are displayed on the display screen 16a for graphs G42 and G43, respectively.

[0128] Furthermore, in the illustrated example, the maximum value of the pitch oscillation and the number of data points where the pitch oscillation or the maximum value of the pitch oscillation exceeds the upper limit (threshold) are displayed at the top of the screen of the display unit 16. In this way, the operating data of the wind turbine can be converted into characteristic data indicating the degree of abnormality of the wind turbine (such as the pitch oscillation in the above example), and the degree of abnormality of the wind turbine can be visualized by plotting this characteristic data on a graph. For example, if the characteristic data exceeds a threshold indicating an abnormality during the process of changing over time, the abnormality detection unit 32 (see Figure 1) can detect the abnormality.

[0129] Figure 32 shows yet another example of operation support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 32, the operation support information displayed on the display screen 16a of the display unit 16 includes a map M3 of the area where the wind farm is located, and circular icons plotted on the map M3 corresponding to each wind turbine at the location of each turbine. In the display screen 16a shown in Figure 32, icons indicating a turbine in a normal state are green, icons indicating a turbine in a state requiring attention are yellow, icons indicating a turbine in a state where inspection is recommended are orange, and icons indicating a turbine in a state where operation should be stopped are red, so that the status of each turbine can be identified by color. In this case, clicking on an icon may link to each abnormality detection unit 32, and details of the abnormality (data that resulted in the abnormality judgment, history of past abnormalities, content of recommended actions for the abnormality, and comparison with other turbines, etc.) may be displayed on the display screen 16a of the display unit 16.

[0130] Figure 33 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 33, the operational support information displayed on the display unit 16 includes a time-series graph showing the history of abnormality detections for each diagnostic item of the wind turbine abnormality diagnosis as a trend. In the illustrated example, the diagnostic items of the abnormality diagnosis include abnormality judgments for each of the component equipment A to J that make up the wind turbine, and may include, for example, pitch control abnormality judgment, performance abnormality judgment (excessive performance), generator terminal voltage low judgment, accumulator gas pressure abnormality judgment, yaw rotation abnormality judgment, performance abnormality judgment (insufficient performance), GO-related component abnormality judgment, power factor abnormality judgment, yaw slip count abnormality judgment, and winding temperature judgment, and the number of times an abnormality has been detected by the abnormality detection unit 32 (see Figure 1) for each diagnostic item is displayed as a trend on the display screen 16a of the display unit 16.

[0131] Figure 34 shows yet another example of operation support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 34, the operation support information displayed on the display unit 16 is data generated by aggregating the history of anomaly detection shown in Figure 33, and includes a list table T14 that lists the number of times anomaly detections have occurred for each diagnostic item for each wind turbine unit. In the display screen 16a shown in Figure 34, cells in the list table T14 with an anomaly detection count of 1 or more may be highlighted by changing the background color of the cell and the color of the number. Operation support information regarding wind turbine alarms, malfunctions, and anomalies, etc., as shown in Figures 18 to 34, can be provided to the wind farm user from a wind farm operation support device 12 separate from the remote monitoring PC 6, so that even if a malfunction occurs in the remote monitoring PC 6, appropriate operation support information can be provided to the wind farm user.

[0132] Figure 35 shows yet another example of the operation support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 35, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, a model selection unit E3 for selecting one or more models from multiple models of wind turbines 5, an item selection unit E5 for selecting one or more items from the local site, other sites, and examples of the same model, and a list table T15. Here, the local site is the site of the wind farm owned and managed by the user using the user terminal 15, as described above, other sites are the sites of wind farms other than the local site among the multiple wind farms for which the wind farm operation support device 12 manages the operation data, and examples of the same model are examples of data from wind farms at other sites that are the same model as those included in the local site's wind farm.

[0133] In the example shown in Figure 35, table T15 displays a list of the number of times an abnormality diagnosis has been detected for each diagnostic item of the abnormality diagnosis by the abnormality detection unit 32 (see Figure 1). In the illustrated example, the diagnostic items of the abnormality diagnosis include abnormality judgments for each of the constituent equipment A to O that make up the wind turbine, and may include, for example, yaw rotation abnormality judgment, yaw rotation abnormality judgment (first rotation), yaw slip count abnormality judgment, generator terminal voltage low judgment, performance abnormality judgment (excessive performance), performance abnormality judgment (insufficient performance), pitch control abnormality judgment, pitch rattle detection judgment, accumulator gas pressure abnormality judgment, GO-related component abnormality judgment, speed increaser LO system malfunction judgment, winding temperature judgment, generator input side bearing temperature above judgment, and power factor abnormality judgment.

[0134] On display screen 16a, the user can specify a period in the period specification section E1, select a wind turbine model in the model selection section E3, and select items for their own site, other sites, or examples of the same model in the item selection section E5. As a result, data for the period specified in the period specification section E1, the model selected in the model selection section E3, and the items selected in the item selection section E5 will be displayed in the list table T15.

[0135] In the example shown in Figure 35, models A, B, and C are selected in the model selection unit E3, and local site, other sites, and examples of the same model are selected in the item selection unit E5. In the illustrated example, the local site's wind turbines consist only of model A turbines, and the display screen 16a shows, for each diagnostic item in the list table T15, the average number of anomaly detections for model A turbines in the local site's wind farm, the average number of anomaly detections for all model A, B, and C turbines in the other site's wind farm, and the average number of anomaly detections for model A turbines (the same model as the local site's wind turbines) in the other site's wind farm. Each of the above average values ​​for the models selected in the model selection unit E3 for the items selected in the item selection unit E5 is calculated by the statistical value calculation unit 30 (see Figure 1).

[0136] For example, the statistical value calculation unit 30 may calculate the average number of diagnoses for each diagnostic item of an anomaly diagnosis for the models selected by the model selection unit E3 at the local wind farm, based on the data for each wind turbine at the local wind farm (first wind farm) acquired by the data acquisition unit 20 and stored in the database unit 22 (data on the number of times an anomaly diagnosis was detected for each diagnostic item of an anomaly diagnosis) and model information indicating the model of each wind turbine at the local wind farm stored in the database unit 22. Alternatively, the statistical value calculation unit 30 may calculate the average number of diagnoses for each diagnostic item of an anomaly diagnosis for the models selected by the model selection unit E3 at the other wind farms, based on the data for each wind turbine at other wind farms (multiple other wind farms located at multiple other sites) acquired by the data acquisition unit 20 and stored in the database unit 22 (data on the number of times an anomaly diagnosis was detected for each diagnostic item of an anomaly diagnosis) and model information indicating the model of each wind turbine at the other wind farms stored in the database unit 22. Furthermore, the statistical value calculation unit 30 may calculate the average number of diagnostic tests for each diagnostic item of an anomaly diagnosis for each model in other wind farms (multiple other wind farms located at multiple other sites) for the same models included in the wind farm at its own site, based on the data for each wind turbine at other wind farms (multiple other wind farms located at multiple other sites) acquired by the data acquisition unit 20 and stored in the database unit 22 (data on the number of times an anomaly diagnosis has been detected for each diagnostic item of the anomaly diagnosis), and model information indicating the model of each wind turbine at each wind farm stored in the database unit 22.

[0137] As illustrated in Figure 35, the Wind Farm Operation Support System 2 outputs operational support information to support the operation of the site's wind farm (first wind farm) based on data from multiple other wind farms. This allows for the output of operational support information that includes insights not obtainable from the site's wind farm alone (for example, trends in data from multiple other wind farms obtained by performing time-series analysis, cross-sectional analysis, or statistical analysis on data from multiple other wind farms), thus providing high-value operational support information.

[0138] Figure 36 shows yet another example of the operation support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 36, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, a model selection unit E3 for selecting one or more models from multiple models of wind turbine 5, a wind farm selection unit E4 for selecting one or more wind farms from multiple wind farms associated with the user (multiple wind farms owned and managed by the user), and a list table T16.

[0139] In the example shown in Figure 36, table T16 displays a list of the number of times an abnormality diagnosis has been detected for each diagnostic item of the abnormality diagnosis by the abnormality detection unit 32 (see Figure 1) for each wind turbine unit. In the illustrated example, the diagnostic items of the abnormality diagnosis include abnormality judgments for each of the component equipment A to O that make up the wind turbine, and may include, for example, yaw rotation abnormality judgment, yaw rotation abnormality judgment (first rotation), yaw slip count abnormality judgment, generator terminal voltage low judgment, performance abnormality judgment (excessive performance), performance abnormality judgment (insufficient performance), pitch control abnormality judgment, pitch rattle detection judgment, accumulator gas pressure abnormality judgment, GO-related component abnormality judgment, speed increaser LO system malfunction judgment, winding temperature judgment, generator input side bearing temperature above judgment, and power factor abnormality judgment.

[0140] On display screen 16a, when the user specifies a period in the period specification section E1, selects a wind turbine model in the model selection section E3, and selects a wind farm in the wind farm selection section E4, data for the period specified in the period specification section E1, the model selected in the model selection section E3, and the wind farm selected in the wind farm selection section E4 is displayed in table T15.

[0141] In the example shown in Figure 36, Model A is selected in the Model Selection Unit E3, and the wind farms at Site A, Site B, and Site C are selected in the Wind Farm Selection Unit E4. Therefore, the list table T16 displays a list of the number of abnormality detections for each wind turbine of Model A during the period specified in the Period Specification Unit E1, for each diagnostic item of the abnormality diagnosis, for each of the wind farms at Site A, Site B, and Site C.

[0142] Figure 37 shows an example of a maintenance record input menu displayed on the display unit 16 when a user inputs maintenance record data, which shows the record of maintenance work performed on the wind turbine 5, into the user terminal 15. In the example shown, the display unit 16 displays "Patrol / Inspection," "Troubleshooting," "Parts Replacement," and "Repair Work" as maintenance work items, and the user can select the work item of the work record to input from these work items. In the display screen 16a shown in Figure 37, when the user selects one of these work items, a screen is displayed for inputting maintenance record data (for example, diagrams or photographs showing the content of the maintenance work or the condition of the wind turbine) that shows the record of maintenance work performed for the selected work item. For example, if the user selects "Patrol / Inspection," a screen for inputting the details of the "Patrol / Inspection" work record is displayed on the display unit 16, as shown in Figure 38. In the illustrated example, the display screen 16a of the display unit 16 displays input fields for wind turbine shutdown time, work completion time, wind turbine recovery time, worker, number of workers, and work details. The user can input maintenance record data corresponding to each input field into the user terminal 15.

[0143] When a user enters wind turbine maintenance record data from the maintenance record input menu, the entered maintenance record data is uploaded via a communication network (not shown) to a dedicated folder for the wind farm 3, including the wind turbine 5, in the common cloud 10 shown in Figure 1. For example, when a user enters maintenance record data for wind turbine 5 of wind farm 3A, which is owned and managed by the user, into the user terminal 15A, the user terminal 15A automatically uploads the entered maintenance record data via a communication network (not shown) to a dedicated folder for wind farm 3A in the common cloud 10. The maintenance record data uploaded to the common cloud 10 is acquired by the data acquisition unit 20 of the wind farm operation support device 12 and stored in the database unit 22. The database unit 22 of the wind farm operation support device 12 stores maintenance record data for wind turbines in each of the multiple wind farms 3A, 3B, and 3C. Furthermore, the operation support information output unit 24 outputs operation support information (for example, maintenance and inspection history and medical records of each wind turbine 5) for each wind farm 3, based on the maintenance record data for each of the wind farms 3A, 3B, and 3C acquired by the data acquisition unit 20.

[0144] Furthermore, in the display screen 16a shown in Figure 37, if a user selects, for example, "parts replacement" and inputs maintenance record data indicating the actual parts replacement from the user terminal 15, the input maintenance record data is saved and stored in the database unit 22 via the common cloud 10 and data acquisition unit 20 shown in Figure 1, as described above. In this case, the results of the parts replacement may be automatically reflected in the inventory database unit (for example, a part of the database unit 22) which records the inventory quantity of wind turbine parts, or a replenishment request to request replenishment of the replaced parts may be automatically sent, for example, by email to the person in charge of parts replenishment in the supply chain.

[0145] Figure 39 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 39, the operational support information displayed on the display screen 16a of the display unit 16 includes a list of inspection history T17, a list of troubleshooting history T18, a list of parts replacement history T19, and a list of repair work history T20 for the wind farm associated with the user.

[0146] The inspection history list T17 includes, for each wind turbine in the wind farm associated with the user, the details of the inspection work, completion status (completed or incomplete), pending issues, work category, observations, pending status, next scheduled date, work start time, work end time, and tracking number. The troubleshooting history list T18 includes, for each wind turbine in the wind farm associated with the user, the alarm number, completion status, worker, suspected cause, comments, action taken, pending issues, work start time, work end time, and tracking number. The parts replacement history list T18 includes, for each wind turbine in the wind farm associated with the user, the details of the parts replacement work, completion status, tag number, part number, part name, quantity, work date, work time, worker, etc. The repair work history list T20 includes, for each wind turbine in the wind farm associated with the user, the details of the repair work, completion status, pending issues, work category, observations, pending status, next scheduled date, work start time, work end time, worker, and tracking number.

[0147] The data in tables T17 to T20 of the operational support information shown in Figure 39 is generated when the operational support information output unit 24 aggregates the maintenance work performance data accumulated in the database unit 22 for each wind farm, and is uploaded as operational support information from the data output unit 26 to individual folders corresponding to the wind farm.

[0148] Figure 40 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 40, the operational support information displayed on the display screen 16a of the display unit 16 includes a graph G47 showing the number of patrol and inspection operations for each wind turbine unit of the wind farm associated with the user, and a table T21 showing the number of patrol and inspection operations and the work time for each part of the wind turbine unit.

[0149] In the example shown in Figure 40, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, a unit selection unit E2 for selecting the unit numbers of the wind turbines that make up the wind farm, and a wind farm selection unit E4 for selecting one or more wind farms from among multiple wind farms associated with the user. The display screen 16a of the display unit 16 also displays a work category selection unit E14 for selecting a work category from among work categories such as monthly inspections, patrols, annual inspections, and semi-annual inspections, and a pending issue selection unit E15 for selecting whether or not there are pending issues.

[0150] On display screen 16a, when the user specifies a period in the period specification section E1, selects a wind farm in the wind farm selection section E4, and selects a wind turbine unit in the unit selection section E2, the data for the unit selected in the unit selection section E2 for the period specified in the period specification section E1 will be displayed on display screen 16a for each wind farm selected in the wind farm selection section E4. In addition, when a work category is selected in the work category selection section E14 and the presence or absence of a pending issue is selected in the pending issue selection section E15, only the data corresponding to the selected work category and the presence or absence of a pending issue will be displayed on graph G47 and list T21, respectively.

[0151] In the example shown in Figure 40, the wind farm selection unit E4 selects the wind farm at site A from among several wind farms associated with the user, and the unit selection unit E2 selects all units of the wind turbines at site A. Therefore, the display screen 16a shows the data for all units of the wind turbines at site A, for each unit, for both the graph G47 and the list table T21.

[0152] The data in graph G47 and table T21 in the operational support information shown in Figure 40 are generated when the operational support information output unit 24 aggregates the maintenance work performance data accumulated in the database unit 22 for each wind farm, and is uploaded as operational support information from the data output unit 26 to individual folders corresponding to the wind farm.

[0153] Figure 41 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 41, the operational support information displayed on the display screen 16a of the display unit 16 includes a list T22 showing the work time for each work category of patrol and inspection for each wind turbine unit for the wind farm associated with the user, a list T23 showing the work time for each part of the wind turbine for each wind turbine unit, and a graph G48 showing the cumulative work time calculated by accumulating the work time for each part of the wind turbine for each wind turbine unit.

[0154] In the example shown in Figure 41, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed. When the user specifies a period using the period specification unit E1 on the display screen 16a, the data for the period specified by the period specification unit E1 is displayed on the display screen 16a for each of the list table T22, list table T23, and graph G48.

[0155] The data in List T22, List T23, and Graph G48 in the operational support information shown in Figure 41 are generated when the operational support information output unit 24 aggregates the maintenance work performance data accumulated in the database unit 22 for each wind farm, and is uploaded as operational support information from the data output unit 26 to individual folders corresponding to the wind farm.

[0156] Figure 42 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 42, the operational support information displayed on the display screen 16a of the display unit 16 includes a graph G49 showing the number of troubleshooting operations performed for each wind turbine unit for the wind farm associated with the user, a list T24 showing the number of troubleshooting operations performed for each alarm number for each wind turbine unit, and a list T25 showing the alarm number, observations, estimated cause, work date, and tracking number for each wind turbine unit.

[0157] In the example shown in Figure 42, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed. When the user specifies a period using the period specification unit E1 on the display screen 16a, the data for the period specified by the period specification unit E1 is displayed on the display screen 16a for each of the graph G49, list table T24, and list table T25.

[0158] The data in graph G49, list T24, and list T25 in the operational support information shown in Figure 42 are generated when the operational support information output unit 24 aggregates the maintenance work performance data accumulated in the database unit 22 for each wind farm, and is uploaded as operational support information from the data output unit 26 to individual folders corresponding to the wind farm.

[0159] Figure 43 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 43, the operational support information displayed on the display screen 16a of the display unit 16 includes a list T26 showing the quantity of parts to be replaced for each wind turbine part name for the wind farm associated with the user, and a graph G50 showing the quantity of parts to be replaced for each wind turbine part name. This includes a list (T27) for each wind turbine unit showing the details of the parts replacement work, completion status, tag number, part number, part name, quantity, work date, and work time.

[0160] In the example shown in Figure 43, the display screen 16a of the display unit 16 displays a period selection unit E1 for specifying the period of data to be displayed, a wind farm selection unit E4 for selecting one or more wind farms from among multiple wind farms associated with the user, a unit selection unit E2 for selecting the unit numbers of the wind turbines that make up the wind farm, a completion status selection unit E16 for selecting whether the parts replacement is complete or not, and a part selection unit E17 for selecting the parts to be replaced.

[0161] On display screen 16a, when the user specifies a period in the period specification section E1, selects a wind farm in the wind farm selection section E4, and selects a wind turbine unit in the unit selection section E2, data for the period specified in the period specification section E1, the wind farm selected in the wind farm selection section E4, and the unit selected in the unit selection section E2 are displayed on display screen 16a for each of the list table T26, list table T27, and graph G50. Furthermore, if a completion category is selected in the completion category selection section E16, and if a target part for parts replacement is selected in the part selection section E17, data corresponding to the selected completion category and target part are displayed for each of the list table T26, list table T27, and graph G50.

[0162] The data in List T26, List T27, and Graph G50 in the operational support information shown in Figure 43 are generated when the operational support information output unit 24 aggregates the maintenance work performance data accumulated in the database unit 22 for each wind farm, and is uploaded as operational support information from the data output unit 26 to individual folders corresponding to the wind farm.

[0163] Figure 44 shows yet another example of the operational support information displayed on the display unit 16 of the user terminal 15. In the example shown in Figure 44, the operational support information displayed on the display screen 16a of the display unit 16 includes a graph G51 showing the number of repair work operations for each wind turbine unit for the wind farm associated with the user, a list T28 showing the number of work operations and work time for each repair work category for each wind turbine unit, and a list T29 showing the presence or absence of issues, work categories, and observations for each wind turbine unit.

[0164] In the example shown in Figure 44, the display screen 16a of the display unit 16 displays a period specification unit E1 for specifying the period of data to be displayed, a unit selection unit E2 for selecting the unit numbers of the wind turbines that make up the wind farm, and a wind farm selection unit E4 for selecting one or more wind farms from among multiple wind farms associated with the user. In addition, the display screen 16a of the display unit 16 displays a work category selection unit E14 for selecting a work category from among work categories such as monthly inspection, patrol, annual inspection, and semi-annual inspection, a pending issue selection unit E15 for selecting whether or not there are pending issues, and a completion category selection unit E16 for selecting whether or not parts replacement has been completed.

[0165] On display screen 16a, when the user specifies a period in the period specification section E1, selects a wind farm in the wind farm selection section E4, and selects a wind turbine unit in the unit selection section E2, the data for the unit selected in the unit selection section E2 for the period specified in the period specification section E1 is displayed on display screen 16a for each wind farm selected in the wind farm selection section E4, for each of graph G51, list table T28, and list table T29. In addition, only data corresponding to the work category selected in the work category selection section E14, the presence or absence of pending issues selected in the pending issue selection section E15, or the completion category selected in the completion category selection section E16 is displayed for each of graph G51, list table T28, and list table T29.

[0166] In the example shown in Figure 44, the wind farm selection unit E4 selects the wind farm at site A from among several wind farms associated with the user, and the unit selection unit E2 selects all units of the wind turbines at site A. Therefore, the display screen 16a shows the data for all units of the wind turbines at site A, for each unit, for each of the graph G51, list T28, and list T29.

[0167] The data in graph G51, list T28, and list T29 in the operational support information shown in Figure 44 are generated when the operational support information output unit 24 aggregates the maintenance work performance data accumulated in the database unit 22 for each wind farm, and is uploaded as operational support information from the data output unit 26 to individual folders corresponding to the wind farm.

[0168] (Lost electricity generation) In some embodiments, the operation support information output unit 24 may be configured to predict the amount of power lost when a target wind turbine (first wind turbine) in the target wind farm 3 (first wind farm) that is subject to operation support is shut down. In this case, the operation support information output unit 24 may predict the amount of power lost based on the flow shown in Figure 45.

[0169] In the example shown in Figure 45, in S101, the trend in the amount of electricity generated by the target wind turbine that experienced a failure at the target wind farm is evaluated. In S101, as shown in Figure 4, for example, a dataset is stored in the database unit 22 that shows the wind condition observation data for the target wind turbine over a one-year period measured after the target wind turbine started operation, and the actual trend in the amount of electricity generated by the target wind turbine over that one-year period. Specifically, the wind condition observation data may be, for example, observation data of the average wind speed every 10 minutes from 0:00 on January 1st to 23:59 on December 31st. If there is no observation data after the target wind turbine started operation, data showing the amount of electricity generated by the target wind turbine at any time during the year may be obtained using the wind condition observation data for the target wind turbine over a one-year period measured in advance before the target wind turbine was installed, and a pre-created power curve showing the relationship between wind speed and generator output. Furthermore, if there are datasets for multiple years for the wind condition and amount of electricity generated, the annual variation may be evaluated as variability.

[0170] In S102, the time required to procure parts and the cost of repairs are evaluated for each failure mode of the wind turbine. In S102, for example, information regarding the failure of the target wind turbine is evaluated, including (a) failure mode, (b) target parts, (c) time required to procure parts, (d) whether provisional operation is possible and, if provisional operation is possible, the allowable load level (%) and allowable operating period, (e) the repair period required to repair the failure, and (f) the repair cost required to repair the failure. In S102, for example, for wind turbines of multiple wind turbine models and wind turbines of multiple wind farms, a dataset (information on the failure history of multiple wind farms) including target parts, time required to procure parts, severity of each failure mode, repair period, and repair cost is stored in the database unit 22 for each failure mode of the wind turbine. Then, based on the model information indicating the model of the target wind turbine and the dataset stored in the database unit 22, the system evaluates the information (a) to (f) above regarding the failure of the target wind turbine, taking into account weighting coefficients corresponding to the similarity of the model and the similarity of the wind farm in a comparison with the target wind turbine.

[0171] In S103, the shutdown period for the wind turbine is set, and the amount of power lost from the wind turbine is predicted (estimated). In S103, the operation support information output unit 24 estimates the amount of power lost from the recognition of the abnormality by the abnormality detection unit 32 (see Figure 1) to the completion of repairs, based on the information identified for the target wind turbine in S102 (for example, the period required to procure parts, the period during which provisional operation is permitted and the permitted operating period, the permitted load level during the permitted operating period, and the repair period required to repair the fault, etc.) and the data showing the trend of power generation stored in the database unit in S101.

[0172] In S103, the operation support information output unit 24 may determine the timing of wind turbine repair based on the level indicating the severity of the abnormality of the target wind turbine detected by the abnormality detection unit 32. For example, as shown in Figure 46, if the severity of the abnormality of the target wind turbine is at the first level, which is relatively minor, the operation support information output unit 24 may determine the timing of the repair of the target wind turbine to be during a period of relatively weak winds within the year, and instruct the target wind turbine to operate provisionally until that time. This makes it possible to suppress the increase in lost power generation while suppressing the occurrence of serious damage to the target wind turbine.

[0173] Furthermore, as shown in Figure 46, if the severity of the abnormality of the target wind turbine is at Level 2, which is more serious than Level 1, the operation support information output unit 24 may determine the timing of repairs for the target wind turbine to be immediately after the parts required for the repair are delivered, and instruct the target wind turbine to operate provisionally until that time. This makes it possible to suppress the occurrence of serious damage to the target wind turbine while suppressing the increase in lost power generation.

[0174] Furthermore, as shown in Figure 46, if the severity of the abnormality of the target wind turbine is at Level 3, which is more serious than Level 2, the operation support information output unit 24 may determine the timing of repairs for the target wind turbine to be immediately after the parts required for the repair are delivered, and issue an instruction to the target wind turbine to stop operation until that time. This can suppress the increase in safety risks caused by the failure of the target wind turbine.

[0175] According to the Wind Farm Operation Support System 2 described above, by considering model information indicating the model of the target wind turbine and information on the failure history of multiple wind farms (in the example above, a dataset of data such as the target parts, the time required to procure the parts, the severity of each failure mode, the repair period, and the repair costs for each wind turbine failure mode), it is possible to accurately predict the amount of power lost when the target wind turbine is shut down. Therefore, users who have obtained operation support information to support the operation of the target wind farm can grasp an accurate predicted value for the amount of power lost when the target wind turbine is shut down. Furthermore, by determining the timing of wind turbine repairs based on the level indicating the severity of the abnormality of the target wind turbine, it is possible to suppress the increase in the amount of power lost while suppressing the occurrence of serious damage to the target wind turbine.

[0176] (Optimal Operation Plan) Figure 47 is a diagram illustrating an example of the configuration of the operation support device 12 in the wind farm operation support system 2 shown in Figure 1. Figure 48 is a control flow diagram showing an example of output control of multiple wind farms 3 by the operation support device 12 shown in Figure 47. The wind farm operation support device 12 shown in Figure 47 is configured to optimize the operation of multiple wind farms 3A to 3C, which are owned by different parties and located in the target area, for the entire target area, taking into account output restriction orders from power companies, etc., and wind conditions in the target area. For this reason, after concluding a contract (optimal operation contract) with each owner of multiple wind farms 3A to 3C, which includes permission for the wind farm operation support device 12 to propose power generation plans for multiple wind farms 3A to 3C and to perform optimal control of each wind turbine in wind farms 3A to 3C, the control described below is executed. In the following, "wind farm output" means the power generation output of the wind farm, and "wind turbine output" means the power generation output of the wind turbine.

[0177] In the example shown in Figure 47, the data acquisition unit 20 includes a limit value command acquisition unit 60, a wind condition forecast information acquisition unit 61, and an operation history information acquisition unit 62. The operation support information output unit 24 includes a limit value command output unit 63, and the limit value command output unit 63 includes a regional demand calculation unit 64 and a power generation plan output unit 65.

[0178] As shown in Figure 48, in S201, the limit value command acquisition unit 60 acquires a first output limit value command from the power company or transmission and distribution company, etc. that has jurisdiction over the target area, which includes time-series data of the output limit values ​​for each of the multiple wind farms 3A to 3C located in the target area. The first output limit value command includes at least a first scheduling command which includes time-series data of the output limit value (upper limit value) of each wind farm 3 set by the power company or transmission and distribution company, etc. for the stable operation of the power system (frequency stability, synchronization stability, voltage stability, etc.), and may further include an emergency command for urgently limiting the output of the wind farm 3 to an output smaller than the output limit value specified in the first scheduling command. Hereinafter, unless otherwise specified, the first output limit value command means the first scheduling command. In this specification, the time interval of the data (values) included in the "time-series data" is not particularly limited and may be, for example, one day, one hour, or 10 minutes.

[0179] In S202, the regional demand calculation unit 64 calculates regional demand data, which is time-series data of the power generation demand for the entire group of wind farms 3A to 3C in the target area (power generation demand defined by the sum of the output limits of the wind farms 3A to 3C in the target area), based on the first output limit value commands for each of the multiple wind farms 3A to 3C acquired by the limit value command acquisition unit 60.

[0180] For example, regarding the time-series data indicated by the first output limit value command (the time-series data of the output limit values in each of the wind farms 3A to 3C), the output limit value of the wind farm 3A, the output limit value of the wind farm 3B, and the output limit value of the wind farm 3C at an arbitrary time point t are respectively P t , P Bt and P Ct are defined, and when the power generation demand for the entire plurality of wind farms 3A to 3C at an arbitrary time point t is defined as D t , the regional demand calculation unit 64, for each time point t of the time-series data indicated by the first output limit value command, P At , P Bt and P Ct may be summed to calculate the power generation demand Dt for the entire plurality of wind farms 3A to 3C at each time point t. That is, the regional demand calculation unit 64 may calculate the time-series data of the power generation demand D t =P At +P Bt +P Ct that satisfies. Further, in some embodiments, when the user uploads the first output limit value command to the dedicated folders 11A to 11C of each wind farm 3 in the common cloud 10 shown in FIG. 1, the limit value command acquisition unit 60 may respectively acquire the first output limit value commands of each wind farm 3 from the dedicated folders 11A to 11C of each wind farm 3.

[0181] ​​In S203, the wind condition forecast information acquisition unit 61 acquires wind condition forecast information from a weather forecast information data source, which shows the forecast for future wind conditions at each of the wind farms 3A to 3C. The wind condition forecast information here may include, for example, time-series data such as the average wind speed, wind speed frequency distribution, wind direction occurrence rate (dominant wind direction), and wind turbulence intensity at each of the wind farms 3A to 3C. In some embodiments, the wind condition forecast information acquisition unit 61 may acquire information on future wind conditions at each of the wind farms 3A to 3C from a weather forecast information data source, and calculate wind condition forecast information showing the forecast for future wind conditions at each of the wind farms 3A to 3C based on that information.

[0182] In S204, the operation history information acquisition unit 62 acquires operation history information from the database unit 22, showing the operation history for each wind turbine in each of the multiple wind farms 3A to 3C. This operation history information may include, for example, wind condition output correlation information showing the relationship between past wind conditions and the output of each wind turbine for each of the multiple wind farms 3A to 3C, operation history, maintenance history, and life information regarding the consumption of the lifespan of each wind turbine (for example, a ranking of the lifespan consumption of the wind turbines).

[0183] In S205, the power generation plan output unit 65 outputs power generation plan data, which is time-series data of predicted output values ​​for each wind turbine in each of the wind farms 3A to 3C (for example, the output for each wind turbine estimated from the wind conditions and wind condition output correlation information shown by the wind condition forecast information), based on wind condition forecast information for each of the wind farms 3A to 3C acquired by the wind condition forecast information acquisition unit 61 and operation history information for each wind turbine in each of the wind farms 3A to 3C acquired by the operation history information acquisition unit 62.

[0184] In S206, the limit value command output unit 63 outputs a second output limit value command, that is, an optimal operation plan for the multiple wind farms 3A to 3C in the target area, based on the regional demand data calculated by the regional demand calculation unit 64 and the power generation plan data output from the power generation plan output unit 65. The second output limit value command includes at least a second scheduling command that includes time series data of the output limit value (upper limit) for each wind turbine 5 in each of the multiple wind farms 3, and may further include an emergency command to urgently limit the output of each wind turbine in the wind farm 3 to an output smaller than the output limit value specified in the second scheduling command. Hereinafter, unless otherwise specified, the second output limit value command means the second scheduling command.

[0185] The limit value command output unit 63 may output a second output limit value command based on the regional demand data calculated by the regional demand calculation unit 64 and the power generation plan data output from the power generation plan output unit 65, for example, so that the sum of the output limit values ​​of all wind turbines of the multiple wind farms 3A to 3C in the second output limit value command is maximized at each point in time of the time series data, while satisfying the following first and second constraint conditions.

[0186] First constraint: At each point in time of the time series data indicated by the second output limit command, the sum of the output limits of all wind turbines in the multiple wind farms 3A to 3C in the second output limit command does not exceed the power generation demand Dt defined by the sum of the output limits of the multiple wind farms 3A to 3C in the first output limit command. Second constraint: At each point in the time series data indicated by the second output limit command, the output limit for each wind turbine in each of the wind farms 3A to 3C indicated by the second output limit command does not exceed the predicted output for each wind turbine in each of the wind farms 3A to 3C indicated by the power generation plan data.

[0187] In S207, the data output unit 26 transmits the time-series data of the output limit values ​​for each wind turbine, which is included in the second output limit value command output from the limit value command output unit 63 in S206, to the corresponding wind farm 3. Specifically, the data output unit 26 transmits a second output limit value command for wind farm 3A (a second output limit value command including time-series data of the output limit values ​​for each wind turbine of wind farm 3A) output from the limit value command output unit 63 to a wind farm controller (not shown) of wind farm 3A; a second output limit value command for wind farm 3B (a second output limit value command including time-series data of the output limit values ​​for each wind turbine of wind farm 3B) output from the limit value command output unit 63 to a wind farm controller (not shown) of wind farm 3B; and a second output limit value command for wind farm 3C (a second output limit value command including time-series data of the output limit values ​​for each wind turbine of wind farm 3C) output from the limit value command output unit 63 to a wind farm controller (not shown) of wind farm 3C.

[0188] The wind farm controller of wind farm 3A controls the output of each wind turbine in wind farm 3A based on a second output limit command received from the data output unit 26 for wind farm 3A, the wind farm controller of wind farm 3B controls the output of each wind turbine in wind farm 3B based on a second output limit command received from the data output unit 26 for wind farm 3B, and the wind farm controller of wind farm 3C controls the output of each wind turbine in wind farm 3C based on a second output limit command received from the data output unit 26 for wind farm 3C.

[0189] As explained using Figures 47 and 48, the wind farm operation support system 2 described above can be used to output a second output limit command based on the regional demand data calculated by the regional demand calculation unit 64 and the power generation plan data output from the power generation plan output unit 65. This command satisfies predetermined constraints (first and second constraints in the above example) and maximizes the sum of the output limit values ​​of all wind turbines in the multiple wind farms 3A to 3C in the second output limit command at each point in the time series data. Therefore, by controlling the output of each wind turbine in each of the multiple wind farms 3 according to the second output limit command, it is possible to effectively utilize the wind energy of the target area while suppressing the impact on the stable operation of the power grid.

[0190] In some embodiments, the limit value command output unit 63 may output a second output limit value command based on regional demand data calculated by the regional demand calculation unit 64, power generation plan data output from the power generation plan output unit 65, and life information regarding the life consumption of each wind turbine in a plurality of wind farms 3A to 3C acquired by the operation history information acquisition unit 62. In this case, the limit value command output unit 63 may output a second output limit value command while satisfying the first and second constraint conditions and considering the priority of wind turbine operation determined based on the life information. In this case, the limit value command output unit 63 may output a second output limit value command, for example, to minimize the variation in life consumption of multiple wind turbines within each wind farm 3. This makes it possible to efficiently perform maintenance work on multiple wind turbines within the wind farm 3.

[0191] Figure 49 is a diagram showing an example of the schematic configuration of the hardware of each of the following: wind turbine control device 4, remote monitoring PC 6, edge PC 8, common cloud 10, operation support device 12, multiple dedicated clouds 14, multiple user terminals 15, and owner terminal 18. As shown in Figure 49, each of the wind turbine control device 4, remote monitoring PC 6, edge PC 8, common cloud 10, operation support device 12, multiple dedicated clouds 14, multiple user terminals 15, and owner terminal 18 is configured using a computer that includes, for example, a processor 72, RAM (Random Access Memory) 74, ROM (Read Only Memory) 76, HDD (Hard Disk Drive) 78, input I / F 80, and output I / F 82, and these are connected to each other via a bus 84. The functions of each of the wind turbine control device 4, remote monitoring PC 6, edge PC 8, common cloud 10, operation support device 12, multiple dedicated clouds 14, multiple user terminals 15, and owner terminal 18 are realized, for example, by loading a program stored in ROM 76 into RAM 74 and executing it with processor 72, as well as by reading and writing data to RAM 74 and ROM 76.

[0192] This disclosure is not limited to the embodiments described above, but also includes modified forms of the embodiments described above, as well as forms that combine these forms as appropriate.

[0193] For example, the operation support information output unit 24 shown in Figure 1 may be configured to output operation support information to support the operation of each of the multiple wind farms 3 based on the data acquired by the data acquisition unit 20, for each user associated with each wind farm 3 (for each user who owns and manages each wind farm 3). In this case, the data output unit 26 is configured to upload the user-specific operation support information output by the operation support information output unit 24 to each user's dedicated cloud (a dedicated cloud provided for each user).

[0194] For example, in Figures 2 to 4, when the user specifies a period from the period specification unit E1, the measured value (actual value) of the generator output during the specified period is displayed on the display unit 16 of the user terminal 15. However, in other examples of the operational support information displayed on the display unit 16, when the user specifies a period from the period specification unit E1, the planned power generation amount (the amount of power generated estimated from the wind condition results) may be calculated based on the wind condition results during the specified period, and a comparison between the measured value of the power generated and the planned power generation amount may be displayed on the display unit 16. Alternatively, for example, the planned power generation amount (the amount of power generated estimated from the annual average wind speed) may be calculated based on the annual average wind speed estimated at the time the wind farm 3 was installed, and a comparison between the measured value of the power generated and the planned power generation amount may be displayed on the display unit 16.

[0195] Furthermore, for example, the wind farm operation support device 12 may be configured to send an email (see Figure 50) containing a link to access the operation support information uploaded to the dedicated cloud 14 to the user corresponding to the dedicated cloud 14 when operation support information is uploaded to the dedicated cloud 14. In this case, when the user receives the email, on-site video of the wind farm 3 associated with the user may be displayed on the user terminal 15.

[0196] Furthermore, the email may include a link to a weather information data server that holds local weather information for Wind Farm 3 associated with the user (e.g., weather, wind speed, typhoons, lightning, tsunamis, earthquakes, etc.). In this case, the user can use this link to obtain desired weather information from the weather information data server, including past, present, and future weather information. The user can also use the email to obtain, for example, local wind condition data for Wind Farm 3 and predict the amount of power generated by the wind turbines.

[0197] Furthermore, the wind farm operation support system 2 may have a function to support the operation of the wind turbine 5 by displaying links to real-time image information of the wind turbine site and past, present, and future weather information on the corresponding user terminal 15 when an alarm, abnormality, or malfunction occurs in the wind turbine.

[0198] Furthermore, maintenance documents (e.g., instruction manuals, drawings, and technical communications) and troubleshooting manuals used for wind turbine maintenance may be pre-uploaded to the dedicated clouds 14A, 14B, and 14C. In this case, users can access the dedicated clouds via their user terminals to refer to these maintenance documents and troubleshooting manuals. Additionally, if the operational support information obtained by the user from the dedicated clouds via their user terminals includes alarm information indicating an abnormality in the wind turbine detected by the abnormality detection unit 32 (see Figure 1), a troubleshooting manual associated with the name of the alarm indicated by the alarm information may be automatically displayed as a pop-up on the display unit 16 of the user terminal. This effectively supports the work of wind turbine maintenance personnel.

[0199] Furthermore, in S201 of Figure 47, the limit value command acquisition unit 60 acquired a first output limit value command, which includes time-series data of the output limit values ​​for each of the multiple wind farms 3A to 3C located in the target area, from the power company or transmission and distribution company that has jurisdiction over the target area. However, if, for example, each administrator (user) of wind farm 3 receives the first output limit value command from the power company or transmission and distribution company via a user terminal 15 (see Figure 1) and stores the first output limit value command from the user terminal 15 in the corresponding dedicated folder 11 of the common cloud 10, the limit value command acquisition unit 60 may acquire the first output limit value command for each of the multiple wind farms 3A to 3C from each of the dedicated folders 11 of the common cloud 10.

[0200] In some embodiments, the multiple wind farms 3 may include offshore wind farms. In this case, the operational support information output by the operational support information output unit 24 that corresponds to the offshore wind farm may include at least one of the following: wave information relating to the offshore wind farm, and oscillation information of the floating bodies or foundations of the wind turbines of the offshore wind farm.

[0201] In some embodiments, the data acquisition unit 20 may acquire parameters indicating the operating status of wind turbines from the common cloud 10 for each of the multiple wind farms 3, for each of the one or more wind turbines constituting each wind farm 3. In this case, the anomaly detection unit 32 may detect anomalies in each of the one or more wind turbines constituting the first wind farm (for example, the wind farm at the local site described above) by comparing the above parameters with thresholds 8 (for example, each parameter and threshold in graphs G42 to G46 shown in Figures 30 and 31) for each of the one or more wind turbines constituting the first wind farm, which is any of the multiple wind farms 3. Furthermore, the operation support information output by the operation support information output unit 24 to support the operation of the first wind farm may include the detection results of anomalies in each of the one or more wind turbines constituting the first wind farm, as detected by the anomaly detection unit 32. Furthermore, the anomaly detection unit 32 may update the threshold used to detect anomalies in the first wind turbine, which constitutes part of the first wind farm, based on the history of anomaly detections in multiple other wind farms 3, excluding the first wind farm.

[0202] In some embodiments, the display unit 19 of the owner terminal 18, operated by the administrator of the wind farm operation support device 12, may display the same content as the display screen 16a of the user terminal 15. This makes it possible for the user using the user terminal 15 and the owner (administrator of the wind farm operation support device 12) to share the content of the display screen 16a of the user terminal 15, facilitating communication between the user and the owner.

[0203] The contents described in each of the above embodiments can be understood, for example, as follows:

[0204] (1) A wind farm operation support system according to at least one embodiment of the present disclosure (for example, the wind farm operation support system 2 described above) A wind farm operation support system for supporting the operation of multiple wind farms (for example, the multiple wind farms 3 mentioned above), The aforementioned multiple wind farms include a first wind farm (for example, the wind farm on the own site as described above) and multiple other wind farms with different owners from the first wind farm (for example, the wind farms on other sites as described above), The aforementioned wind farm operation support system is A data acquisition unit (for example, the data acquisition unit 20 described above) acquires data relating to the first wind farm and data relating to the plurality of other wind farms, Based on the data relating to the plurality of other wind farms acquired by the data acquisition unit, an operation support information output unit (for example, the operation support information output unit 24 described above) outputs operation support information to support the operation of the first wind farm, It is equipped with.

[0205] According to the wind farm operation support system described in (1) above, operational support information to support the operation of the first wind farm is output based on data from multiple other wind farms with different owners than the first wind farm. This makes it possible to output operational support information that includes insights that cannot be obtained from the first wind farm alone (for example, trends in data from multiple other wind farms obtained by performing time-series analysis, cross-sectional analysis, or statistical analysis on data from multiple other wind farms), thereby providing the first wind farm with high value-added operational support information.

[0206] (2) In some embodiments, in the wind farm operation support system described in (1) above, The data relating to the plurality of other wind farms includes at least one of the following: operation data relating to the operating status of each of the plurality of other wind farms, and maintenance record data relating to the maintenance records of each of the plurality of other wind farms.

[0207] According to the wind farm operation support system described in (2) above, operation support information to support the operation of the first wind farm is output based on at least one of the following: operation data relating to the operating status of each of the multiple other wind farms, and maintenance record data relating to the maintenance records of each of the multiple other wind farms. This makes it possible to output operation support information for the first wind farm using insights that cannot be obtained from the first wind farm alone, such as trends in operation data or maintenance record data relating to each of the multiple other wind farms that have different owners than the first wind farm, thereby providing the first wind farm with operation support information that has high added value.

[0208] (3) In some embodiments, in the wind farm operation support system described in (1) or (2) above, The operation support information output unit includes a statistical value calculation unit (for example, the statistical value calculation unit 30 described above) that calculates statistical values ​​of the data relating to the plurality of other wind farms acquired by the data acquisition unit, The operational support information for supporting the operation of the first wind farm includes the statistical values ​​of the data relating to the plurality of other wind farms.

[0209] According to the wind farm operation support system described in (3) above, a user who has obtained operation support information to support the operation of the first wind farm will be able to consider the operation method of the first wind farm by taking into account statistical values ​​of data from multiple other wind farms (e.g., mean, median, mode, maximum, minimum, variance, standard deviation, skewness or kurtosis, etc.).

[0210] (4) In some embodiments, in the wind farm operation support system described in (3) above, The statistical value calculation unit calculates statistical values ​​for the data relating to the first wind farm acquired by the data acquisition unit, The aforementioned operational support information for supporting the operation of the first wind farm is: The statistical values ​​of the data relating to the first wind farm calculated by the statistical value calculation unit, The statistical values ​​of the data relating to the plurality of other wind farms calculated by the statistical value calculation unit, Includes.

[0211] According to the wind farm operation support system described in (4) above, a user who has obtained operation support information to support the operation of the first wind farm can compare the statistical values ​​of data from multiple other wind farms (e.g., mean, median, mode, maximum, minimum, variance, standard deviation, skewness or kurtosis, etc.) with the data from the first wind farm to consider how to operate the first wind farm.

[0212] (5) In some embodiments, in the wind farm operation support system described in (3) or (4) above, The statistical value calculation unit calculates statistical values ​​for each wind turbine model based on the data relating to the plurality of other wind farms.

[0213] According to the wind farm operation support system described in (5) above, a user who has obtained operation support information to support the operation of the first wind farm will be able to consider the operation method of the first wind farm by taking into account statistical values ​​for each wind turbine model for data on multiple other wind farms.

[0214] (6) In some embodiments, in the wind farm operation support system described in (5) above, The statistical value calculation unit calculates statistical values ​​for each wind turbine model based on the data relating to the first wind farm acquired by the data acquisition unit. The operational support information for supporting the operation of the first wind farm includes the statistical values ​​for each wind turbine model for the data relating to the first wind farm calculated by the statistical value calculation unit, Of the statistical values ​​for each wind turbine model for the data relating to the plurality of other wind farms calculated by the statistical value calculation unit, the statistical values ​​for each model for the same wind turbine as the one included in the first wind farm, Includes.

[0215] According to the wind farm operation support system described in (6) above, a user who has obtained operation support information to support the operation of the first wind farm can compare statistical values ​​for each wind turbine model for data from multiple other wind farms (for example, the average value for each wind turbine model for data from multiple other wind farms) with the data for the first wind farm to consider how to operate the first wind farm.

[0216] (7) In some embodiments, in the wind farm operation support system described in any of (3) to (6) above, The aforementioned statistical values ​​are the mean, median, mode, maximum, minimum, variance, standard deviation, skewness, or kurtosis.

[0217] According to the wind farm operation support system described in (7) above, a user who has obtained operation support information to support the operation of the first wind farm will be able to consider the operation method of the first wind farm by taking into account the mean, median, mode, maximum, minimum, variance, standard deviation, skewness, or kurtosis of data related to multiple other wind farms.

[0218] (8) In some embodiments, in the wind farm operation support system described in any of (1) to (7) above, The aforementioned operational support information includes information regarding the alarm occurrence history for each of the one or more wind turbines constituting the first wind farm.

[0219] According to the wind farm operation support system described in (8) above, a user who has obtained operation support information to support the operation of the first wind farm can obtain information regarding the alarm occurrence history for each of the one or more wind turbines that make up the first wind farm. (9) In some embodiments, in the wind farm operation support system described in (8) above, The aforementioned operational support information includes information regarding the history of alarm occurrences for each wind turbine unit that constitutes the first wind farm.

[0220] According to the wind farm operation support system described in (9) above, a user who has obtained operation support information to support the operation of the first wind farm can obtain information regarding the history of alarm occurrences for each part of the wind turbine for each of the one or more wind turbines that make up the first wind farm.

[0221] (10) In some embodiments, in the wind farm operation support system described in any of (1) to (9) above, The data relating to the first wind farm includes parameters indicating the operating status of each of the one or more wind turbines constituting the first wind farm. The operation support information output unit includes an abnormality detection unit (for example, the abnormality detection unit described above) that detects abnormalities in each of the one or more wind turbines constituting the first wind farm by comparing the parameters with thresholds for each of the one or more wind turbines constituting the first wind farm. The aforementioned operational support information includes the detection results of abnormalities detected by the abnormality detection unit for each of the one or more wind turbines constituting the first wind farm.

[0222] According to the wind farm operation support system described in (10) above, a user who has obtained operation support information to support the operation of the first wind farm can grasp the abnormality detection results for each of the one or more wind turbines that make up the first wind farm.

[0223] (11) In some embodiments, in the wind farm operation support system described in (10) above, The anomaly detection unit updates the threshold used for detecting anomalies in the first wind turbine, which constitutes part of the first wind farm, based on the history of anomaly detections of wind turbines of the same model as the first wind turbine among the multiple wind turbines included in the multiple other wind farms.

[0224] According to the wind farm operation support system described in (11) above, the accuracy of detecting abnormalities in the first wind turbine, which constitutes part of the first wind farm, can be improved by updating the threshold used for detecting abnormalities in the first wind turbine, which constitutes part of the first wind farm, based on the history of abnormality detection in wind turbines of the same model as the first wind turbine among multiple wind turbines included in multiple other wind farms.

[0225] (12) In some embodiments, in the wind farm operation support system described in any of (1) to (11) above, The aforementioned operation support information output unit includes a lost power generation amount calculation unit (for example, the lost power generation amount calculation unit 34 described above), The lost power generation calculation unit, when a first wind turbine constituting a part of the first wind farm fails, evaluates the repair period required to repair the first wind turbine based on information indicating the model of the first wind turbine and information regarding the failure history of the plurality of wind farms, and predicts the amount of lost power generation due to the shutdown of the first wind turbine based on the repair period and data regarding the amount of power generated by the first wind turbine. If the first wind turbine fails, the operational support information includes the amount of lost power generation predicted by the lost power generation amount calculation unit.

[0226] According to the wind farm operation support system described in (12) above, if the first wind turbine, which constitutes part of the first wind farm, malfunctions, the amount of power lost due to the shutdown of the first wind turbine can be accurately predicted by considering information indicating the model of the first wind turbine and information regarding the failure history of multiple wind farms. Therefore, a user who has obtained operation support information to support the operation of the first wind farm can obtain an accurate predicted value for the amount of power lost due to the shutdown of the first wind turbine. [Explanation of symbols]

[0227] 2. Wind Farm Operation Support System 3,3A,3B,3C Wind Farm 4. Wind turbine control device 5 windmill 10. Common Cloud 11A, 11B, 11C dedicated folder 12. Wind Farm Operation Support Equipment 14, 14A, 14B, 14C Dedicated Cloud 15, 15A, 15B, 15C User Terminals 16 Display section 16a Display screen 18 Owner's terminal 20 Data Acquisition Unit 22 Database Section 24 Operation support information output section 26 Data Output Section 30 Statistical Value Calculation Section 32 Anomaly detection unit 34. Unit for calculating lost power generation 72 processors 74 RAM 76 ROM 78 HDD 80 Input Interfaces 82 Output Interfaces 84 Bus E1 Period-Specific Section E2 Unit Selection Section E3 Model Selection Section E4 Wind Farm Selection Section E5 Item Selection Section E6 Window Frame Selection Section E7 Wind Direction Selection Section E10, E11 Alarm Name Selection Section E11 Return Status Selection Section E12 State at Occurrence Selection Section E13 Display Format Switching Section E14 Work Classification Selection Section E15 Outstanding Issue Selection Section E16 Completion Classification Selection Section E17 Part Selection Section

Claims

1. A wind farm operation support system for supporting the operation of multiple wind farms, The aforementioned plurality of wind farms include a first wind farm and a plurality of other wind farms that have different owners from the first wind farm. The aforementioned wind farm operation support system is A data acquisition unit that acquires data relating to the first wind farm and data relating to the plurality of other wind farms, An operation support information output unit outputs operation support information to support the operation of the first wind farm based on the data relating to the plurality of other wind farms acquired by the data acquisition unit, Equipped with, The operation support information output unit includes a statistical value calculation unit that calculates statistical values ​​of the data relating to the plurality of other wind farms acquired by the data acquisition unit, The operational support information for supporting the operation of the first wind farm includes the statistical values ​​of the data relating to the plurality of other wind farms, The statistical value calculation unit calculates statistical values ​​for each wind turbine model based on the data relating to the plurality of other wind farms. Wind farm operation support system.

2. The wind farm operation support system according to claim 1, wherein the data relating to the plurality of other wind farms includes at least one of operation data relating to the operating status of each of the plurality of other wind farms, and maintenance record data relating to the maintenance records of each of the plurality of other wind farms.

3. The statistical value calculation unit calculates statistical values ​​for the data relating to the first wind farm acquired by the data acquisition unit, The operational support information for supporting the operation of the first wind farm is: The statistical values ​​of the data relating to the first wind farm calculated by the statistical value calculation unit, The statistical values ​​of the data relating to the plurality of other wind farms calculated by the statistical value calculation unit, A wind farm operation support system according to claim 1, including the following:

4. The statistical value calculation unit calculates statistical values ​​for each wind turbine model based on the data relating to the first wind farm acquired by the data acquisition unit. The operational support information for supporting the operation of the first wind farm is: The statistical values ​​for each wind turbine model for the data relating to the first wind farm calculated by the statistical value calculation unit, Of the statistical values ​​for each wind turbine model for the data relating to the plurality of other wind farms calculated by the statistical value calculation unit, the statistical values ​​for each model for the same wind turbine as the one included in the first wind farm, A wind farm operation support system according to claim 1, including the following:

5. The wind farm operation support system according to any one of claims 1 to 4, wherein the statistical value is the mean, median, mode, maximum, minimum, variance, standard deviation, skewness, or kurtosis.

6. The wind farm operation support system according to claim 1, wherein the operation support information includes information regarding the alarm occurrence history for each wind turbine constituting the first wind farm.

7. The wind farm operation support system according to claim 1, wherein the operation support information includes information regarding the history of alarm occurrences for each wind turbine part for each wind turbine that constitutes the first wind farm.

8. The data relating to the first wind farm includes parameters indicating the operating status of each wind turbine that constitutes the first wind farm, The operation support information output unit includes an abnormality detection unit that detects abnormalities in each of the one or more wind turbines constituting the first wind farm by comparing the parameters and thresholds for each wind turbine that constitutes the first wind farm. The wind farm operation support system according to claim 1, wherein the operation support information includes the detection results of abnormalities in each of the one or more wind turbines constituting the first wind farm, as detected by the abnormality detection unit.

9. The wind farm operation support system according to claim 8, wherein the abnormality detection unit updates the threshold used for detecting abnormalities in the first wind turbine which constitutes a part of the first wind farm based on the history of abnormality detection of wind turbines of the same model as the first wind turbine among a plurality of other wind farms.

10. The aforementioned operational support information output unit includes a lost power generation amount calculation unit, The lost power generation calculation unit, in the event that a first wind turbine constituting a part of the first wind farm fails, evaluates the repair period required to repair the first wind turbine based on information indicating the model of the first wind turbine and information regarding the failure history of the plurality of wind farms, and predicts the amount of lost power generation due to the shutdown of the first wind turbine based on the repair period and data regarding the amount of power generated by the first wind turbine. The wind farm operation support system according to claim 1, wherein, in the event of a failure of the first wind turbine, the operation support information includes the amount of lost power generation predicted by the lost power generation amount calculation unit.

11. A processing method in a wind farm operation support system for supporting the operation of multiple wind farms, The aforementioned plurality of wind farms include a first wind farm and a plurality of other wind farms that have different owners from the first wind farm. The aforementioned wind farm operation support system is A data acquisition step of acquiring data relating to the first wind farm and data relating to the plurality of other wind farms, An operation support information output step outputs operation support information to support the operation of the first wind farm based on the data relating to the plurality of other wind farms acquired in the data acquisition step, It has, The operation support information output step includes a statistical value calculation step that calculates statistical values ​​of the data relating to the plurality of other wind farms acquired by the data acquisition step, The operational support information for supporting the operation of the first wind farm includes the statistical values ​​of the data relating to the plurality of other wind farms, The statistical value calculation step involves calculating statistical values ​​for each wind turbine model with respect to the data relating to the multiple other wind farms. Processing method.

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