Information processing system, information processing method, and program

Abstract

To accurately assess the degree of deterioration of wind turbines and to take appropriate action without delay according to the degree of deterioration. [Solution] In the control unit 11 of the management server 10 that constitutes the information processing system, the information acquisition unit 111 acquires the actual output power value, which is the actual power output from the generator of a wind turbine used for wind power generation, the information management unit 112 stores and manages the acquired actual output power value in the storage unit, the calculation unit 113 calculates the energy loss based on the initial value of the actual output power value and the cumulative value of the actual output power value that has been continuously acquired and stored thereafter, the determination unit 114 determines the degree of deterioration of the wind turbine from the calculation result of the energy loss, and the display control unit 116 displays the response corresponding to the degree of deterioration of the wind turbine on the display unit of the administrator terminal.

Description

Technical Field

[0001] The present invention relates to an information processing system, an information processing method, and a program.

Background Art

[0002] In a wind power generation system, a technique for detecting a failure of a component on a power transmission line is known (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the conventional technique described in Patent Document 1, a method is adopted in which a group of sensors distributed in each part of the windmill is integrated, and the input / output energy of the entire system is grasped macroscopically. However, this approach has a problem that the information granularity is coarse because the inside of the windmill is treated as a single "black box". Specifically, even if a decrease in efficiency is detected, it does not lead to identifying the specific cause of whether the output decline is due to a malfunction in any part such as the blade, bearing, gear, generator, etc. In addition, depending on a large number of sensors, it is likely to cause a risk of false detection due to insufficient maintenance, and ensuring data quality is also a major obstacle under non-linear and non-steady wind conditions. For this reason, it is difficult to detect the accumulation of minute deterioration at an early stage, which may lead to an increase in costs associated with excessive maintenance and a serious failure due to a delay in response.

[0005] An object of the present invention is to accurately determine the degree of deterioration of a windmill and enable appropriate responses according to the degree of deterioration without delay.

Means for Solving the Problems

[0006] The present invention, completed with this objective in mind, is an information processing system comprising: an acquisition means for acquiring measured values ​​of power output from a generator of a wind turbine used for wind power generation; a storage means for storing the acquired measured values; a calculation means for calculating energy loss based on an initial value of the measured values ​​and an integrated value of the measured values ​​that have been continuously acquired and stored thereafter; a determination means for determining the degree of deterioration of the wind turbine from the calculation result of the energy loss; and an output means for outputting a response corresponding to the degree of deterioration. Here, the calculation means may calculate the energy loss for one or more of the following predetermined periods, parts of the wind turbine, wind speed elements, and wind direction elements. Furthermore, the calculation means may calculate the energy loss for each part of the wind turbine, the determination means may determine the degree of deterioration for each part of the wind turbine based on the calculation results of the calculation means, and the output means may output a response for each part of the wind turbine corresponding to the degree of deterioration based on the determination results of the determination means. Furthermore, if the frequency of deterioration in the determination result of the determination means does not exceed a predetermined standard, the output means may output maintenance information to prevent the wind turbine from malfunctioning. Furthermore, the output means may output information as maintenance information for reviewing the maintenance details for each part of the wind turbine. Furthermore, if the degree of deterioration in the determination result of the determination means exceeds a predetermined standard, the output means may output a message indicating that an abnormality has occurred in the wind turbine. Furthermore, the output means may output information indicating that an abnormality has occurred in the wind turbine, as well as maintenance information to prevent the wind turbine from malfunctioning. Furthermore, the output means may output information for reviewing the maintenance plan for the wind turbine as maintenance information. Furthermore, the acquisition means may acquire the measured value of the three-phase power output from the generator as the measured value. Furthermore, from another perspective, the present invention is an information processing method that includes the steps of: acquiring measured values ​​of power output from a generator of a wind turbine used for wind power generation; storing the acquired measured values; calculating energy loss based on an initial value of the measured values ​​and an integrated value of the measured values ​​that have been continuously acquired and stored thereafter; determining the degree of deterioration of the wind turbine from the calculation result of the energy loss; and outputting a response corresponding to the degree of deterioration. Furthermore, from another perspective, the present invention is a program for a computer to implement control processing that includes a function to acquire measured values ​​of power output from a generator of a wind turbine used for wind power generation; a function to store the acquired measured values; a function to calculate energy loss based on an initial value of the measured values ​​and the cumulative value of the measured values ​​that have been continuously acquired and stored thereafter; a function to determine the degree of deterioration of the wind turbine from the calculation result of the energy loss; and a function to output a response according to the degree of deterioration. [Effects of the Invention]

[0007] According to the present invention, the degree of deterioration of a wind turbine can be accurately determined, and appropriate measures can be taken without delay according to the degree of deterioration. [Brief explanation of the drawing]

[0008] [Figure 1] This figure shows an example of the overall configuration of an information processing system to which this embodiment is applied. [Figure 2] This figure shows an example of the hardware configuration of the management server that constitutes the information processing system shown in Figure 1. [Figure 3] This figure shows an example of the functional configuration of the control unit of the management server. [Figure 4] This flowchart shows an example of the processing flow of the management server. [Figure 5] This figure shows a specific example of the information displayed on the administrator terminal in Figure 1. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described in detail below with reference to the attached drawings. <Configuration of the information processing system> Figure 1 shows an example of the overall configuration of the information processing system 1 to which this embodiment is applied. The information processing system 1 includes a management server 10, an administrator terminal 30, and power measuring devices 70-1 to 70-n (where n is an integer value of 1 or more). The management server 10 and the administrator terminal 30 are connected via a network 90. ​​The network 90 is, for example, a LAN (Local Area Network), the Internet, etc. Hereinafter, unless it is necessary to explain each of the power measuring devices 70-1 to 70-n individually, they will be collectively referred to as "power measuring device 70". The administrator terminal 30 is connected to a power measuring device 70 installed for each wind turbine used in wind power generation (hereinafter simply referred to as "wind turbine").

[0010] [Management Server 10] The management server 10, which constitutes the information processing system 1, is an information processing device that acts as a server for managing the entire information processing system 1. The management server 10 enables the execution of application software that makes the information processing system 1 available for use. The management server 10 enables the transmission of various types of information to the administrator terminal 30 and external sources, and the execution of various processes. In addition, the management server 10 enables the acquisition of various types of information transmitted from the administrator terminal 30 and external sources, and the execution of various processes.

[0011] For example, the management server 10 obtains the measured power output from the wind turbine generator from the administrator terminal 30. Hereinafter, the measured power obtained by the management server 10 will be referred to as the "measured output power." The measured output power obtained by the management server 10 is the measured power measured by the power measuring device 70 described later, and may be managed centrally by the administrator terminal 30. The management server 10 stores and manages the obtained measured output power in a database.

[0012] The management server 10 calculates the energy loss that reflects the individual differences and operation status of the wind turbines based on the initial value of the measured output power obtained before starting the operation of the wind turbines and the integrated value of the measured output power continuously obtained and managed after starting the operation of the wind turbines. In the present embodiment, the energy loss is a value obtained by converting, into electric energy, the decrease in the power generation efficiency caused by the passage of time and the continuation of operation with respect to the power generation efficiency at the time (initial) when the wind turbine is installed and starts operation. Specifically, the energy loss is a value derived by calculating the deviation between the integrated value of the measured output power accumulated by the subsequent continuous operation and the measured output power value at the time (initial) when the wind turbine starts operation as a reference. The energy loss is an index that quantifies the decrease in the energy conversion efficiency due to mechanical factors such as wear of the blades of the wind turbine, increase in friction of mechanical parts, and aging deterioration of the generator, and electrical factors such as resistance of the electrical circuit and iron loss of the magnetic circuit. The energy loss serves as a direct basis for determining the degree of deterioration of the wind turbine. The management server 10 can perform such calculation of the energy loss for each predetermined period, for each part of the wind turbine, for each wind speed factor, and for each wind direction factor.

[0013] The management server 10 determines the degree of deterioration of the wind turbine from the calculation result of the energy loss. For example, the management server 10 may determine the degree of deterioration of the wind turbine based on whether the calculated value of the energy loss exceeds a predetermined threshold. The management server 10 can determine the degree of deterioration of the wind turbine for each part of the wind turbine.

[0014] The management server 10 causes the administrator terminal 30 to output a response according to the degree of deterioration of the wind turbine. Specifically, when the degree of deterioration of the wind turbine in the determination result of the degree of deterioration of the wind turbine does not exceed a predetermined standard, the management server 10 outputs information for preventing the wind turbine from malfunctioning (hereinafter referred to as "maintenance information"). In this case, the management server 10 can output, as the maintenance information, for example, information for reviewing the maintenance content for each part of the wind turbine.

[0015] On the other hand, when the degree of deterioration of the wind turbine in the determination result of the degree of deterioration of the wind turbine exceeds a predetermined standard, the management server 10 causes the administrator terminal 30 to output, as alert information, that an abnormality has occurred in the wind turbine. In this case, the management server 10 can output maintenance information together with the alert information indicating that an abnormality has occurred in the wind turbine. For example, the management server 10 can output information for reviewing the plan regarding the maintenance of the wind turbine as the maintenance information. The information for reviewing the plan regarding the maintenance of the wind turbine may be output for each part of the wind turbine. Note that the details of the configuration and processing of the management server 10 will be described later.

[0016] 〔Administrator Terminal 30〕 The administrator terminal 30 that constitutes the information processing system 1 is an information processing device such as a personal computer, a smartphone, or a tablet terminal operated by an administrator of the wind turbine that uses the information processing system 1. The administrator terminal 30 can execute application software that enables the use of the information processing system 1.

[0017] Based on various types of information transmitted from each of the management server 10, the power measurement device 70, and the outside, and various types of information input by the administrator of the wind turbine, the administrator terminal 30 can perform various types of processing. Also, the administrator terminal 30 can transmit various types of information to each of the management server 10, the power measurement device 70, and the outside.

[0018] For example, the administrator terminal 30 stores and manages the actual output power values ​​continuously obtained from the power measuring device 70 in a database. The administrator terminal 30 also transmits these actual output power values ​​to the management server 10. Furthermore, the administrator terminal 30 displays appropriate actions on the display according to the degree of deterioration of the wind turbine, based on the control information transmitted from the management server 10. For example, as an action according to the degree of deterioration of the wind turbine, the administrator terminal 30 displays maintenance information. Also, as an action according to the degree of deterioration of the wind turbine, the administrator terminal 30 displays alert information indicating that an abnormality has occurred in the wind turbine, or information for reviewing the wind turbine maintenance plan.

[0019] [Power measurement device 70] The power measuring device 70, which constitutes the information processing system 1, measures the power output from the wind turbine generator. The power measuring device 70 outputs the measured output power value, which is the measurement result, to the administrator terminal 30. Here, the timing at which the power measuring device 70 outputs the measured output power value to the administrator terminal 30 is not particularly limited. For example, the power measuring device 70 may output the measured power value in real time, or it may output the measured output power value at predetermined intervals (e.g., seconds, minutes, etc.). In addition, the power measuring device 70 may output the measured output power value in response to an output inquiry from the administrator terminal 30.

[0020] The processing performed by the management server 10, administrator terminal 30, and power measuring device 70, which constitute the information processing system 1, is merely an example. For example, the management server 10 may be a single personal computer, or it may be composed of multiple servers. Furthermore, a part of it may be built on the cloud. In other words, the information processing system 1 only needs to have the functionality to implement the processing described above as a whole system, so some or all of the functions to implement the processing described above may be shared or collaborated within the information processing system 1.

[0021] For example, some or all of the functions of the management server 10 may be assigned to other information processing devices within the information processing system 1. Alternatively, some or all of the functions of other information processing devices within the information processing system 1 may be assigned to the management server 10. Furthermore, some or all of the functions of the management server 10 may be transferred to other servers, etc., not shown. This facilitates processing within the information processing system 1 as a whole and allows for complementary processing.

[0022] <Hardware configuration of management server 10> Figure 2 shows an example of the hardware configuration of the management server 10 that constitutes the information processing system 1 shown in Figure 1. The management server 10 includes a control unit 11, a memory 12, a storage unit 13, a communication unit 14, an operation unit 15, and a display unit 16. These units are connected by a data bus, an address bus, a PCI (Peripheral Component Interconnect) bus, etc.

[0023] The control unit 11 is a processor that controls the functions of the management server 10 through the execution of various software such as the OS (operating system) and application software. In this embodiment, various processes are executed on any computer. This computer may be implemented as a processor as hardware, a program as software, or a combination thereof. This computer may be a general-purpose computer, a computer for a specific purpose, a workstation, or any other system capable of executing various processes.

[0024] The processor is configured to perform various processes in cooperation with the program. The processor can function as each unit or each means in this embodiment. The execution order of the processes performed by the processor is not limited to the order described in this embodiment and can be changed as needed.

[0025] A processor can be composed of one or more hardware components. The types of hardware that make up a processor are not limited to any particular type. For example, a processor may be a CPU (Central Processing Unit), an MPU (Micro Processing Unit), a programmable logic device such as an FPGA (Field Programmable Gate Array), a dedicated circuit for performing specific processing such as an ASIC (Application Specific Integrated Circuit), a GPU (Graphics Processing Unit), or a hardware component such as an NPU (Neural Processing Unit).

[0026] A processor can be configured not only with a combination of multiple hardware components of the same type, but also with a combination of multiple hardware components of different types. When multiple hardware components are configured to perform one or more processes of a given processor, these components may reside in physically separate devices or in the same device. Hardware is composed of electrical circuits, etc., which are combinations of circuit elements such as semiconductor devices.

[0027] In any embodiment, the execution order of various processes by the processor is not limited to the order described in each embodiment and can be changed as necessary. The program may be firmware or software such as microcode. The program may also be, for example, a group of program modules. Each function constituting the group of program modules may be implemented by a processor configured to execute each function. The program in each embodiment may be program code or multiple code segments stored in one or more non-temporary computer-readable media (e.g., semiconductor memory, magnetic or optical storage media, or other storage).

[0028] A program may be divided and stored on multiple non-temporary computer-readable media located on devices that are physically separated from each other. Program code and multiple code segments may be represented by any combination of procedures, functions, subprograms, routines, subroutines, modules, software packages, classes, instructions, data structures, and program statements. Program code and multiple code segments may be connected to other code segments or hardware circuits by sending and receiving information, data, arguments, parameters, or memory contents.

[0029] Memory 12 is a memory area that stores various software and data used for its execution, and is used as a work area during calculations. Memory 12 is composed of, for example, RAM (Random Access Memory).

[0030] The memory unit 13 is a memory area that stores input data for various software and output data from various software. The memory unit 13 is composed of, for example, an HDD (Hard Disk Drive), an SSD (Solid State Drive), or semiconductor memory used to store programs and various setting data. The memory unit 13 is provided with a database for storing various types of information. Examples of databases provided in the memory unit 13 include databases that store predicted wind conditions, measured wind conditions, wind turbine operating records, and measured values ​​of electrical signals from the wind turbine generator.

[0031] The communication unit 14 transmits and receives data between the administrator terminal 30 and the outside world via the network 90. ​​The operation unit 15 consists of, for example, a keyboard, mouse, mechanical buttons, and switches, and accepts input operations. The operation unit 15 also includes a touch sensor that, together with the display unit 16, forms a touch panel.

[0032] The display unit 16 consists of, for example, a liquid crystal display or an organic EL (Electro-Luminescence) display used for displaying information, and displays image and text data. The display unit 16 also displays a user interface, etc.

[0033] [Hardware configuration of administrator terminal 30] The administrator terminal 30 can have a hardware configuration similar to that of the management server 10 shown in Figure 2. That is, the administrator terminal 30 can have a control unit 11, memory 12, storage unit 13, communication unit 14, operation unit 15, and display unit 16, respectively, similar to those of the management server 10 shown in Figure 2. For this reason, the illustration and explanation of the hardware configuration of the administrator terminal 30 are omitted.

[0034] <Functional configuration of the control unit 11 of the management server 10> Figure 3 shows an example of the functional configuration of the control unit 11 of the management server 10. The control unit 11 of the management server 10 includes an information acquisition unit 111 that functions as at least part of the acquisition means, an information management unit 112 that functions as at least part of the storage means, and a calculation unit 113 that functions as at least part of the calculation means. The control unit 11 also includes a determination unit 114 that functions as at least part of the determination means, a correspondence determination unit 115 and a display control unit 116 that function as at least part of the output means, and a transmission control unit 117 that controls the transmission of various types of information.

[0035] The information acquisition unit 111 acquires the measured output power values ​​transmitted from the administrator terminal 30 via the communication unit 14. For example, the information acquisition unit 111 acquires the measured values ​​of the three-phase power output from the wind turbine generator as the measured output power values. Specifically, for example, it electrically derives the electrical signals of the three-phase current and three-phase voltage output from the wind turbine generator and acquires them as analog values ​​with a high dynamic range that can distinguish even minute fluctuation components on the order of 0.001 to 0.0001.

[0036] The information management unit 112 manages various types of information. For example, the information management unit 112 stores and manages the measured output power values ​​acquired by the information acquisition unit 111 in the database of the storage unit 13.

[0037] The calculation unit 113 calculates energy loss based on the initial value of the acquired measured output power and the cumulative value of the measured output power that is continuously acquired and stored in the database. Specifically, the calculation unit 113 calculates instantaneous energy loss (kW) that reflects individual differences and operating conditions of the wind turbine by performing frequency analysis on the measured output power managed by the information management unit 112. Then, it calculates the cumulative value of the measured output power (kWh) by integrating the calculated energy loss (kW) over the operating time of the wind turbine. The calculation unit 113 performs this calculation of energy loss for each predetermined period, each part of the wind turbine, each wind speed element, and each wind direction element.

[0038] For example, as described above, suppose that the three-phase current and three-phase voltage electrical signals output from the wind turbine generator are electrically derived and acquired as high-dynamic-range analog values ​​capable of identifying minute fluctuation components on the order of 0.001 to 0.0001. In this case, the calculation unit 113 performs spectral analysis on the acquired electrical signals with respect to the active power, which is the input energy, to calculate the energy loss for each part of the wind turbine or for the entire power transmission system.

[0039] The determination unit 114 determines the degree of deterioration of the wind turbine. Specifically, the determination unit 114 determines the degree of deterioration of the wind turbine based on the calculation result of energy loss by the calculation unit 113. For example, the determination unit 114 may determine the degree of deterioration of the wind turbine based on whether the energy loss value obtained from the calculation result of energy loss exceeds a predetermined threshold.

[0040] The response determination unit 115 determines the content to output as a response according to the degree of deterioration of the wind turbine, based on the determination result from the judgment unit 114. Specifically, the response determination unit 115 decides to output maintenance information if the degree of deterioration of the wind turbine does not exceed a predetermined standard. Maintenance information includes, for example, information for reviewing the maintenance content for each part of the wind turbine.

[0041] Furthermore, the response decision unit 115 decides to output a message indicating that an abnormality has occurred in the wind turbine if the degree of deterioration of the wind turbine exceeds a predetermined standard. In this case, the response decision unit 115 may also decide to output maintenance information along with the message indicating that an abnormality has occurred in the wind turbine. In this case, the response decision unit 115 may decide to output information for reviewing the maintenance plan for the wind turbine as maintenance information. The response decision unit 115 may also decide to output information for reviewing the maintenance plan for the wind turbine for each part of the wind turbine.

[0042] The display control unit 116 controls the display of the administrator terminal 30 to show the appropriate response based on the degree of deterioration of the wind turbine. Specifically, the display control unit 116 controls the display of the appropriate response based on the decision made by the response determination unit 115 on the administrator terminal 30. For example, if the response determination unit 115 decides to output maintenance information, the display control unit 116 controls the display of the maintenance information on the administrator terminal 30.

[0043] Furthermore, if the response decision unit 115 decides to output a message indicating that an abnormality has occurred in the wind turbine, the display control unit 116 controls the display of alert information indicating that an abnormality has occurred in the wind turbine on the administrator terminal 30. Also, if the response decision unit 115 decides to output maintenance information, the display control unit 116 controls the display of maintenance information on the administrator terminal 30. In this case, the display control unit 116 controls the display of maintenance information on the administrator terminal 30, for example, information for reviewing the maintenance plan for the wind turbine.

[0044] The transmission control unit 117 controls the transmission of various types of information via the communication unit 14 (see Figure 2). For example, the transmission control unit 117 controls the transmission of various types of information to the administrator terminal 30. Examples of information transmitted to the administrator terminal 30 include control information from the display control unit 116. Control information from the display control unit 116 includes, for example, control information for displaying on the administrator terminal 30 the appropriate response based on the degree of deterioration of the wind turbine.

[0045] <Processing flow of management server 10> Figure 4 is a flowchart illustrating an example of the processing flow of the management server 10. In Figure 4, the symbol "S" represents a "step". The management server 10 manages the initial values ​​of the measured output power (Step 1). That is, before the wind turbine starts operating, the management server 10 pre-processes to obtain the initial values ​​of the measured output power transmitted from the administrator terminal 30 and store them in the database of the storage unit 13 (see Figure 2).

[0046] After the wind turbine starts operating, if the management server 10 receives the measured output power from the administrator terminal 30 (YES in step 2), it acquires and manages the measured output power (step 3). Specifically, after the wind turbine starts operating, the management server 10 acquires the measured output power continuously transmitted from the administrator terminal 30 and stores and manages it in the database of the storage unit 13. On the other hand, if no measured output power is transmitted (NO in step 2), the management server 10 repeats the decision process in step 2.

[0047] The management server 10 calculates the energy loss (step 4). Specifically, the management server 10 calculates the energy loss that reflects individual differences and operating conditions of the wind turbine, based on the initial value of the measured output power managed in step 1 and the cumulative value of the measured output power acquired and managed continuously in step 3. In step 4, the management server 10 may calculate the energy loss for each predetermined period, each part of the wind turbine, each wind speed element, and each wind direction element.

[0048] The management server 10 determines the degree of deterioration of the wind turbine (step 5). Specifically, the management server 10 determines the degree of deterioration of the wind turbine from the results of the energy loss calculation in step 4. In step 5, the management server 10 may determine the degree of deterioration of the wind turbine for each part of the wind turbine.

[0049] The management server 10 determines the content to output in accordance with the degree of deterioration of the wind turbine (step 6). For example, if the degree of deterioration of the wind turbine does not exceed a predetermined standard, the management server 10 decides to output maintenance information. Alternatively, if the degree of deterioration of the wind turbine exceeds a predetermined standard, the management server 10 decides to output a message indicating that an abnormality has occurred in the wind turbine. In this case, the management server 10 may also decide to output maintenance information along with a message indicating that an abnormality has occurred in the wind turbine.

[0050] The management server 10 outputs a response corresponding to the degree of wind turbine deterioration (step 7) and then terminates the process (END). Specifically, the management server 10 controls the display of the response corresponding to the degree of wind turbine deterioration on the display of the administrator terminal 30, and then terminates the process.

[0051] <Specific example> Figure 5 shows a specific example of the information displayed on the administrator terminal 30 in Figure 1. In addition to maintenance information and alert information for each part of the wind turbine, the administrator terminal 30 may also display a user interface 200, such as the one shown in Figure 5. The user interface 200 shown in Figure 5 has a dashboard function that displays various information about the selected wind turbine. The information displayed in the user interface 200 includes information generated based on the measured output power values ​​of the wind turbine managed by the management server 10.

[0052] In the example shown in Figure 5, the wind turbine associated with the identification information "Power Plant A / Wind Turbine No. 3" is selected using the selection button 221. As a result, various information about the wind turbine named "Wind Turbine No. 3" installed at the wind power generation facility named "Power Plant A" is displayed on the user interface 200.

[0053] Specifically, the user interface 200 shown in Figure 5 includes a selection button 221, various operation buttons 222, and display areas 201 to 210 that display various information about the wind turbine, which is associated with the identification information "Power Plant A / Wind Turbine Unit 3". Display area 201 displays the number of operating days (180 days). Display area 202 displays a graph showing the trend of energy loss (daily / weekly).

[0054] Display area 203 displays a graph showing the long-term forecast trend using SARIMAX, a statistical model used for future predictions of time-series data. Display area 204 displays comments based on the forecast. The comments displayed in display area 204 may be information entered by the administrator or generated by the management server 10.

[0055] Display area 205 displays a heatmap that divides time-series data into specific intervals (bins), representing the density and value of data for each interval using varying shades of color. Display area 206 displays a graph showing the trend in the number of times alert information has been displayed. Display area 207 displays a graph showing the grace period before interventions such as maintenance are performed. Display area 208 displays a graph showing the cumulative energy loss for each part at a given point in time.

[0056] Display area 209 displays a graph showing the cumulative value of energy loss over a specified period (e.g., 1 hour, 1 week, 1 month, 1 year, etc.). Display area 210 displays comments regarding the quality of various data displayed on the user interface 200. The comments displayed in display area 210 may be information entered by the administrator or generated by the management server 10.

[0057] In summary, the information processing system 1 according to this embodiment (see Figure 1) only needs to have the following configuration, and various different embodiments can be adopted. In other words, the information processing system 1 is an information processing system comprising: an information acquisition unit 111 (an example of an acquisition means) that acquires actual output power values, which are actual measured values ​​of the power output from the generator of a wind turbine used for wind power generation; a storage unit 13 (an example of a storage means) that stores the acquired actual output power values; a calculation unit 113 (an example of a calculation means) that calculates energy loss based on an initial value of the actual output power values ​​and the cumulative value of the actual output power values ​​that are subsequently acquired and stored; a determination unit 114 (an example of a determination means) that determines the degree of deterioration of the wind turbine from the calculation result of the energy loss; and a display unit (an example of an output means) of an administrator terminal 30 that outputs a response according to the degree of deterioration of the wind turbine. This allows the wind turbine's generator itself to function as a broad-sense sensor without the need to install additional sensor groups on each part of the turbine. As a result, false detections caused by insufficient maintenance of individual sensors can be suppressed compared to cases where additional sensor groups are installed. Furthermore, wind turbine deterioration can be determined early and quantitatively. Specifically, by accurately calculating energy loss based on the initial value of the measured output power and the integrated value of the measured output power, the decrease in efficiency over time can be accurately grasped. Consequently, highly accurate determinations can be made without the risk of sensor maintenance and less susceptible to disturbances such as wind condition fluctuations, allowing for prompt action according to the degree of wind turbine deterioration.

[0058] Here, the calculation unit 113 may calculate energy loss for one or more of the following predetermined periods (e.g., 1 hour, 1 day, 1 week, 1 month, 1 year, etc.), parts of the wind turbine (e.g., blades, gearbox, gears, bearings, generator, etc.), wind speed elements, and wind direction elements. This makes it easier to identify the causes of deterioration and implement countermeasures. In other words, by analyzing factors such as duration, location, wind speed, and wind direction, it becomes possible to understand in detail where and under what conditions deterioration is occurring.

[0059] Furthermore, the calculation unit 113 may calculate energy loss for each part of the wind turbine, the determination unit 114 may determine the degree of deterioration of the wind turbine for each part of the wind turbine based on the calculation results of the calculation unit 113, and the display unit of the administrator terminal 30 may output a response for each part of the wind turbine according to the degree of deterioration of the wind turbine based on the determination results of the determination unit 114. This enables optimal maintenance for each component. Specifically, by determining the degree of deterioration for each part that makes up the wind turbine, such as the blades, gearbox, gears, bearings, and generator, and outputting the appropriate response, pinpoint and efficient repair and replacement becomes possible.

[0060] Furthermore, if the frequency of wind turbine deterioration in the judgment result of the judgment unit 114 does not exceed a predetermined standard, the display unit of the administrator terminal 30 may output (display) maintenance information to prevent the wind turbine from malfunctioning. This prevents malfunctions before they occur and improves the operating rate of wind turbines. In other words, because preventative measures are taken at an early stage of deterioration, the occurrence of sudden major failures can be suppressed, leading to long-term stable operation.

[0061] Furthermore, the display unit of the administrator terminal 30 may output information for reviewing the maintenance details for each part of the wind turbine as maintenance information. This allows for the development of strategic parts maintenance plans. Specifically, it provides maintenance information that allows for a review of particular maintenance procedures, thereby reducing unnecessary parts replacements and optimizing maintenance costs.

[0062] Furthermore, if the degree of deterioration of the wind turbine in the judgment result of the judgment unit 114 exceeds a predetermined standard, the display unit of the administrator terminal 30 may output (display) a message indicating that an abnormality has occurred in the wind turbine (for example, alert information). This allows for a swift and reliable response when a serious anomaly occurs. Specifically, by issuing an alert when deterioration exceeds predetermined standards, catastrophic accidents and large-scale system shutdowns can be avoided.

[0063] Furthermore, the display unit of the administrator terminal 30 may output information indicating that an abnormality has occurred in the wind turbine, as well as maintenance information to prevent the wind turbine from malfunctioning. This will help suppress future occurrences of abnormalities.

[0064] Furthermore, the display unit of the administrator terminal 30 may output information for reviewing the maintenance plan for the wind turbine as maintenance information. This will allow us to revise the current maintenance plan and reduce the likelihood of future malfunctions.

[0065] Furthermore, the information acquisition unit 111 may acquire the measured value of the three-phase power output from the wind turbine generator as the measured output power value. This enables more accurate diagnosis. Specifically, by acquiring and analyzing data for each phase of three-phase power, imbalances between phases can be detected, thus improving the accuracy of the diagnosis.

[0066] Furthermore, from another perspective, the present invention is an information processing method that includes the steps of: acquiring measured output power values, which are measured values ​​of the power output from a generator of a wind turbine used for wind power generation; storing the acquired measured output power values; calculating energy loss based on an initial value of the measured output power values ​​and the cumulative value of the measured output power values ​​that have been continuously acquired and stored thereafter; determining the degree of deterioration of the wind turbine from the calculation result of the energy loss; and outputting a response corresponding to the degree of deterioration of the wind turbine. This makes it possible to determine wind turbine deterioration early and quantitatively. Specifically, by accurately calculating energy loss based on the initial value of the measured output power and the integrated value of the measured output power, it is possible to accurately grasp the decrease in efficiency over time. As a result, it becomes possible to take appropriate measures according to the degree of wind turbine deterioration without delay.

[0067] Furthermore, from another perspective, the present invention is a program for a computer to implement control processing that includes: a function to acquire measured output power values, which are measured values ​​of the power output from the generator of a wind turbine used for wind power generation; a function to store the acquired measured output power values; a function to calculate energy loss based on an initial value of the measured output power values ​​and the cumulative value of the measured output power values ​​that are subsequently acquired and stored; a function to determine the degree of deterioration of the wind turbine from the calculation result of the energy loss; and a function to output a response according to the degree of deterioration of the wind turbine. This makes it possible to determine wind turbine deterioration early and quantitatively. Specifically, by accurately calculating energy loss based on the initial value of the measured output power and the integrated value of the measured output power, it is possible to accurately grasp the decrease in efficiency over time. As a result, it becomes possible to take appropriate measures according to the degree of wind turbine deterioration without delay.

[0068] <Other Embodiments> Although this embodiment has been described above, the present invention is not limited to this embodiment. Furthermore, the effects of the present invention are not limited to those described in this embodiment. For example, the configuration of the information processing system 1 shown in Figure 1, the hardware configuration of the management server 10 shown in Figure 2, and the functional configuration of the control unit 11 of the management server 10 shown in Figure 3 are merely examples for achieving the objectives of the present invention and are not particularly limited. It is sufficient that the information processing system 1 in Figure 1 is equipped with a function that can execute the above-described process as a whole, and the hardware configuration and functional configuration used to realize this function are not limited to the examples described above.

[0069] Furthermore, the order of the processing steps of the management server 10 shown in Figure 4 is merely illustrative and not particularly limiting. The processing does not necessarily have to be performed chronologically according to the illustrated step order; it may also be performed in parallel or individually. Similarly, the specific example shown in Figure 5 is merely an example and not particularly limiting. In other words, the various types of information displayed on the user interface 200 shown in Figure 5 are examples of information that support accurately determining the degree of deterioration of the wind turbine and taking appropriate action without delay according to the degree of deterioration, and are not particularly limiting. [Explanation of Symbols]

[0070] 1...Information processing system, 10...Management server, 11...Control unit, 12...Memory, 13...Storage unit, 14...Communication unit, 15...Operation unit, 16...Display unit, 30...Administrator terminal, 70...Power measuring device, 90...Network, 111...Information acquisition unit, 112...Information management unit, 113...Calculation unit, 114...Determination unit, 115...Correspondence determination unit, 116...Display control unit, 117...Transmission control unit, 200...User interface

Claims

1. A means for obtaining measured values ​​of the power output from a wind turbine generator used in wind power generation, A storage means for storing the acquired measured values, A calculation means for calculating energy loss based on the initial value of the measured value and the cumulative value of the measured value that has been continuously acquired and stored thereafter, A determination means for determining the degree of deterioration of the wind turbine from the calculation results of the energy loss, An output means that outputs a response corresponding to the degree of deterioration, An information processing system having

2. The calculation means calculates the energy loss for one or more of the following: for each predetermined period, for each part of the wind turbine, for each wind speed element, and for each wind direction element. The information processing system according to claim 1.

3. The calculation means calculates the energy loss for each part of the wind turbine, The determination means determines the degree of deterioration for each part of the wind turbine based on the calculation result of the calculation means. The output means outputs a corresponding response for each part of the wind turbine, based on the determination result of the determination means, according to the degree of deterioration. The information processing system according to claim 2.

4. The output means outputs maintenance information to prevent the wind turbine from malfunctioning if the frequency of deterioration in the determination result of the determination means does not exceed a predetermined standard. The information processing system according to claim 1.

5. The output means outputs information for reviewing the maintenance details for each part of the wind turbine as maintenance information. The information processing system according to claim 4.

6. The output means outputs a message indicating that an abnormality has occurred in the wind turbine if the degree of deterioration in the determination result of the determination means exceeds a predetermined standard. The information processing system according to claim 1.

7. The output means outputs a message indicating that an abnormality has occurred in the wind turbine, along with maintenance information to prevent the wind turbine from malfunctioning. The information processing system according to claim 6.

8. The output means outputs information for reviewing the maintenance plan for the wind turbine as maintenance information. The information processing system according to claim 7.

9. The acquisition means acquires the measured value of the three-phase power output from the generator as the measured value. The information processing system according to any one of claims 1 to 8.

10. The steps include obtaining the actual measured value of the power output from the generator of a wind turbine used for wind power generation, The steps include storing the acquired measured values, A step of calculating energy loss based on the initial value of the measured value and the cumulative value of the measured value that has been continuously acquired and stored thereafter, A step of determining the degree of deterioration of the wind turbine from the calculation results of the energy loss, A step of outputting a response corresponding to the degree of deterioration, Information processing methods including

11. On the computer, A function to acquire the actual measured value of the power output from the generator of a wind turbine used for wind power generation, A function to store the acquired measured values, A function to calculate energy loss based on the initial measured value and the cumulative value of the measured value that is continuously acquired and stored thereafter, A function to determine the degree of deterioration of the wind turbine from the calculation results of the energy loss, A function that outputs a response corresponding to the degree of deterioration, A program for implementing control processing that includes this.

Images