A method and device for monitoring power generation of an offshore wind farm, a terminal and a medium

Abstract

The application provides a power generation output monitoring method, device, terminal and medium for an offshore wind farm, and the method comprises the following steps: monitoring all power generation devices of the offshore wind farm in real time to obtain working state data; obtaining output monitoring data of a device set corresponding to each power generation device type and an output monitoring graph of a power station of the wind farm according to an arrangement rule corresponding to each power generation device type; and adding the output monitoring graphs of the power stations of each type of wind farm to obtain an output monitoring result of the offshore wind farm. Compared with the prior art, the working state data is obtained, the output monitoring data of the device set is obtained in combination with the arrangement rule corresponding to each power generation type, the output monitoring graph of the power station is obtained, the monitoring result is obtained through addition processing, the actual power generation output situation of the offshore wind farm can be more intuitively and comprehensively reflected, and higher accuracy is achieved.

Description

Technical Field

[0001] This invention relates to the field of offshore wind power output monitoring, and in particular to a method, apparatus, terminal equipment, and computer-readable storage medium for monitoring the power generation output of an offshore wind farm. Background Technology

[0002] Offshore wind turbines operate in complex and harsh environments. Due to challenging on-site operating conditions, such as salt spray corrosion, channel interference caused by strong winds and waves, and damage to instrument transformers or measurement equipment, some telemetry results for offshore wind power inevitably contain bad data or missing data. To ensure the safe operation and control of offshore wind turbines, monitoring the power generation output of offshore wind farms is essential.

[0003] Currently, the wind power output of existing offshore wind farms is usually monitored by individual devices, and the power output of the entire equipment set is reflected by simply overlaying the data from each device. However, this method only reflects the power output of the equipment set for a certain energy type, and lacks accuracy and comprehensiveness in indirectly reflecting the renewable energy power output of the offshore wind farm. Summary of the Invention

[0004] This invention provides a method, device, terminal equipment, and computer-readable storage medium for monitoring the power output of offshore wind farms, in order to solve the technical problem of how to improve the accuracy of monitoring.

[0005] To address the aforementioned technical problems, embodiments of the present invention provide a method for monitoring the power output of an offshore wind farm, comprising:

[0006] Real-time monitoring of all power generation equipment in the offshore wind farm, and acquisition of operating status data of all power generation equipment;

[0007] Based on the working status data of each power generation device, and according to the arrangement rules corresponding to each power generation device type, the output monitoring data of the equipment set corresponding to each power generation device type is obtained, and then the output monitoring map of each type of power plant is obtained based on the output monitoring data.

[0008] The power output monitoring maps of the various types of power generation sites are summed to construct the power output monitoring map of the corresponding power generation area of ​​the offshore wind farm, thereby obtaining the power output monitoring results of the offshore wind farm.

[0009] As a preferred embodiment, the types of power generation equipment include photovoltaic inverters and wind turbines; the types of equipment assemblies include photovoltaic combiner boxes and wind turbine collectors; and the types of power generation sites include wind farms and photovoltaic power stations.

[0010] As a preferred embodiment, the operating status data of the fan includes a split signal and a combined signal;

[0011] After obtaining the power output monitoring results of the offshore wind farm, the method further includes:

[0012] An alarm is triggered based on the fan's position and position signals to indicate the remote signaling change status of the fan.

[0013] As a preferred embodiment, after constructing the power output monitoring map of the corresponding power generation area of ​​the offshore wind farm, the method further includes:

[0014] Obtain the output plan map of the offshore wind farm corresponding to the power generation area level;

[0015] The output monitoring chart and the output plan chart are compared. If there is abnormal information in the comparison result, an alarm is issued.

[0016] As a preferred embodiment, the comparison of the power output monitoring chart and the power output plan chart specifically includes:

[0017] The deviation between the power output monitoring chart and the power output plan chart is calculated to see if it is greater than a preset first threshold. If the deviation is greater than the first threshold, an abnormal prompt is issued.

[0018] As a preferred embodiment, the power generation output monitoring method further includes:

[0019] The active power variation of each type of power plant is obtained from the output monitoring diagram of each type of power plant.

[0020] An alarm is issued when the change in active power exceeds the second threshold.

[0021] As a preferred embodiment, the wind farm station includes a wind measurement tower;

[0022] The power generation output monitoring method also includes:

[0023] The wind direction and speed of the wind measuring tower are monitored in real time, and the wind direction, wind speed, temperature, humidity and pressure of each layer of the wind measuring tower are determined based on the wind direction and wind speed of the wind measuring tower.

[0024] Accordingly, this invention also provides a power generation output monitoring device for offshore wind farms, including a working status data acquisition module, a power plant monitoring module, and an offshore wind farm monitoring module; wherein,

[0025] The working status data acquisition module is used to monitor all power generation equipment of the offshore wind farm in real time and acquire the working status data of all power generation equipment.

[0026] The power plant monitoring module is used to obtain the output monitoring data of the equipment set corresponding to each type of power generation equipment based on the working status data of each power generation equipment and according to the arrangement rules corresponding to each type of power generation equipment, and then obtain the output monitoring map of each type of power plant based on the output monitoring data.

[0027] The offshore wind farm monitoring module is used to sum the output monitoring maps of the various types of power generation stations to construct the output monitoring map of the corresponding power generation area of ​​the offshore wind farm, and obtain the output monitoring results of the offshore wind farm.

[0028] Accordingly, embodiments of the present invention also provide a terminal device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the power generation monitoring method for offshore wind farms as described in any one of the present invention.

[0029] Accordingly, embodiments of the present invention also provide a computer-readable storage medium, the computer-readable storage medium including a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to execute any one of the offshore wind farm power generation output monitoring methods.

[0030] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0031] This invention provides a method, apparatus, terminal equipment, and computer-readable storage medium for monitoring the power output of an offshore wind farm. The power output monitoring method includes: real-time monitoring of all power generation equipment in the offshore wind farm and acquiring operational status data of all power generation equipment; based on the operational status data of each power generation equipment, and according to the arrangement rules corresponding to each power generation equipment type, acquiring power output monitoring data of the equipment set corresponding to each power generation equipment type, and then acquiring power output monitoring maps of each type of power farm station based on the power output monitoring data; summing the power output monitoring maps of each type of power farm station to construct a power output monitoring map of the corresponding power generation area of ​​the offshore wind farm, and obtaining the power output monitoring result of the offshore wind farm. Compared to existing technologies, this method involves real-time monitoring of all power generation equipment to obtain its operational status data. Based on this, and combined with the arrangement rules corresponding to each power generation type, it obtains the output monitoring data of the equipment set and the output monitoring maps of each type of power plant. By summing these data, an output monitoring map of the offshore wind farm is constructed. Compared to existing technologies that rely solely on the output monitoring of individual equipment to obtain the power generation output of the equipment set, this method can more intuitively and comprehensively reflect the actual power generation output of the offshore wind farm, and has higher accuracy. Attached Figure Description

[0032] Figure 1 : A schematic flowchart of an embodiment of the offshore wind farm power generation output monitoring method provided by the present invention.

[0033] Figure 2 : A hierarchical structure diagram of an embodiment of the power output monitoring method provided by the present invention.

[0034] Figure 3 This is a schematic diagram illustrating the execution of an output plan, provided by the present invention.

[0035] Figure 4 : A schematic diagram of one embodiment of the power generation monitoring device for offshore wind farms provided by the present invention. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1:

[0038] Please refer to Figure 1 , Figure 1 A method for monitoring the power output of an offshore wind farm, provided by an embodiment of the present invention, includes steps S1 to S3, wherein,

[0039] Step S1: Monitor all power generation equipment of the offshore wind farm in real time and obtain the operating status data of all power generation equipment.

[0040] In this embodiment, the monitoring levels of the power generation output monitoring method are as follows: Figure 2 The power generation operation of different energy types is monitored according to the "single device - equipment set - power station - area" model. The types of power generation equipment include, but are not limited to, photovoltaic inverters and wind turbines; the types of equipment sets include, but are not limited to, photovoltaic combiner boxes and wind turbine collectors; and the types of power stations include, but are not limited to, wind farms, photovoltaic power stations, and wind measurement towers, etc.

[0041] The photovoltaic power station is a power generation system based on solar energy and composed of special electronic components (such as crystalline silicon panels and inverters). It is connected to the power grid and transmits electricity to it. The wind farm, on the other hand, is a power station consisting of a batch of wind turbine generators (the wind turbines described in this embodiment) or a group of wind turbine generators.

[0042] By implementing the embodiments of this application, real-time monitoring and data collection are performed on all power generation equipment in the offshore wind farm to obtain the operating status data of all power generation equipment, including but not limited to power and active power change.

[0043] Step S2: Based on the working status data of each power generation device, according to the arrangement rules corresponding to each power generation device type, obtain the output monitoring data of the equipment set corresponding to each power generation device type, and then obtain the output monitoring map of each type of power plant station based on the output monitoring data.

[0044] In this embodiment, the equipment set includes wind turbine collector lines and photovoltaic combiner boxes, etc. Different types of power generation equipment and different types of equipment sets have different arrangement rules. The wind turbine collector lines are the power transmission system that collects the power generated by the wind turbines and transmits it to the substation. The photovoltaic combiner box consists of several photovoltaic strings connected in parallel, and each photovoltaic string is a series connection of a certain number of photovoltaic cells of the same or different specifications. The photovoltaic cells are connected to a photovoltaic inverter. The output monitoring data of the equipment sets corresponding to each type of power generation equipment acquired includes, but is not limited to, power, active power change, and grid connection voltage. This allows for the construction of an output monitoring map at the next level (power plant / station) to reflect the power, active power change, and grid connection voltage of the power plant / station in real time.

[0045] Step S3: Sum the output monitoring maps of the various types of power generation stations to construct the output monitoring map of the corresponding power generation area of ​​the offshore wind farm, and obtain the output monitoring results of the offshore wind farm.

[0046] In this embodiment, by constructing a power output monitoring map of the power generation area corresponding to the offshore wind farm, the power output monitoring results of the offshore wind farm can be obtained, which can reflect the changes in the power output of new energy sources such as wind power and photovoltaic power in the power generation area in real time.

[0047] Furthermore, as an example of this embodiment, the operating status data of the fan includes a split signal and a combined signal;

[0048] After obtaining the power output monitoring results of the offshore wind farm, the method further includes:

[0049] Based on the open and closed signals of the wind turbine, an alarm is triggered for the remote signaling change of the wind turbine. For example, when the wind turbine changes from open to closed, the remote signaling in the background can provide a corresponding prompt.

[0050] As a preferred embodiment, after constructing the power output monitoring map of the corresponding power generation area of ​​the offshore wind farm, the method further includes:

[0051] The power output plan map can be generated based on the planned power generation of the offshore wind farm, thereby obtaining the power output plan map of the corresponding power generation area level of the offshore wind farm. The power output plan map and the power output monitoring map are visualized for reference by relevant personnel, and the execution status of the power generation plan can be obtained in real time to understand the real-time power generation status of the offshore wind farm and each power generation station.

[0052] The output monitoring chart and the output plan chart are compared. If there is abnormal information in the comparison result, an alarm is issued.

[0053] In this embodiment, the comparison of the power output monitoring chart and the power output plan chart specifically involves:

[0054] The theoretical output curve of the new energy power plant can be obtained through the output plan diagram. By comparing the output monitoring diagram and the output plan diagram, the deviation between them can be calculated to determine if it exceeds a preset first threshold, thus quantifying the deviation. If the deviation exceeds the first threshold, an anomaly alert is issued. The first threshold can be reasonably set according to the actual application scenario. For example, if the deviation between the theoretical and actual wind power output exceeds A, an anomaly alert is issued, where A is predefined or pre-configured. Implementing this method, since wind power generation has certain fluctuations and uncertainties, and the power system dispatch is highly correlated with wind power output, comparing with the aforementioned first threshold can effectively reduce the impact of deviations, thereby maintaining the operational safety and stability of the power plant. As a further preferred embodiment, the output plan diagram and the output monitoring diagram can be integrated into the same icon, as shown in the reference diagram. Figure 3 This allows for more intuitive comparisons, enabling real-time monitoring of the power generation plan's execution status and facilitating appropriate adjustments to maintain the safe and efficient operation of offshore wind power.

[0055] Furthermore, as a further preferred embodiment, the power generation output monitoring method further includes:

[0056] The active power variation of each type of power plant is obtained from the output monitoring diagram of each type of power plant.

[0057] An alarm is issued when the change in active power exceeds the second threshold.

[0058] For offshore wind and solar turbines, the increase in active power cannot exceed their maximum allowable increase in active power, and the decrease in active power cannot exceed their maximum allowable decrease in active power. This is to ensure the stability of the power plant operation as much as possible. Active power specifically refers to the actual alternating current energy generated or consumed per unit time, which can be understood as the average power over a period. When active power is too low, line losses increase, and the utilization rate of capacity and equipment decreases accordingly, leading to greater energy waste. The second threshold in this embodiment is a predefined value, and its specific value can be reasonably set according to the actual application scenario. Monitoring the changes in active power of the power plant and issuing alarms when limits are exceeded can effectively maintain the stable operation of the power plant, and timely detection can reduce resource waste and lower the operating, maintenance, and repair costs of the power plant.

[0059] In one preferred embodiment, the wind farm station includes a wind measurement tower;

[0060] The power generation output monitoring method also includes:

[0061] The wind direction and speed of the meteorological tower are monitored in real time. Based on the wind direction and speed of the tower, the wind direction, speed, temperature, humidity, and pressure of each level of the tower are determined. In this embodiment, the meteorological tower is a tall tower structure used to measure wind energy parameters. It can be used to observe and record near-surface airflow. In this embodiment, the meteorological tower exists at the wind farm site level. By continuously monitoring the tower, the wind conditions of each level can be obtained.

[0062] Accordingly, refer to Figure 4 This invention also provides a power generation output monitoring device for offshore wind farms, including a working status data acquisition module 101, a power plant monitoring module 102, and an offshore wind farm monitoring module 103; wherein,

[0063] The working status data acquisition module 101 is used to monitor all power generation equipment of the offshore wind farm in real time and acquire the working status data of all power generation equipment.

[0064] The power plant monitoring module 102 is used to obtain the output monitoring data of the equipment set corresponding to each type of power generation equipment based on the working status data of each power generation equipment and according to the arrangement rules corresponding to each type of power generation equipment, and then obtain the output monitoring map of each type of power plant based on the output monitoring data.

[0065] The offshore wind farm monitoring module 103 is used to sum the power output monitoring maps of the various types of power generation stations to construct the power output monitoring map of the corresponding power generation area of ​​the offshore wind farm and obtain the power output monitoring results of the offshore wind farm.

[0066] Accordingly, embodiments of the present invention also provide a terminal device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the power generation monitoring method for offshore wind farms as described in any one of the present invention.

[0067] Accordingly, embodiments of the present invention also provide a computer-readable storage medium, the computer-readable storage medium including a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to execute any one of the offshore wind farm power generation output monitoring methods.

[0068] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor. The processor is the control center of the terminal, connecting all parts of the terminal via various interfaces and lines.

[0069] The memory can be used to store the computer program. The processor implements various functions of the terminal by running or executing the computer program stored in the memory and calling data stored in the memory. The memory may mainly include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the mobile phone (such as audio data, phonebook, etc.). In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, RAM, plug-in hard disk, SmartMedia Card (SMC), Secure Digital (SD) card, Flash Card, at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0070] Accordingly, embodiments of the present invention also provide a computer-readable storage medium, the computer-readable storage medium including a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to execute any one of the offshore wind farm power generation output monitoring methods.

[0071] If the module integrated into the power generation monitoring device / terminal of the offshore wind farm is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.

[0072] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0073] This invention provides a method, apparatus, terminal equipment, and computer-readable storage medium for monitoring the power output of an offshore wind farm. The power output monitoring method includes: real-time monitoring of all power generation equipment in the offshore wind farm and acquiring operational status data of all power generation equipment; based on the operational status data of each power generation equipment, and according to the arrangement rules corresponding to each power generation equipment type, acquiring power output monitoring data of the equipment set corresponding to each power generation equipment type, and then acquiring power output monitoring maps of each type of power farm station based on the power output monitoring data; summing the power output monitoring maps of each type of power farm station to construct a power output monitoring map of the corresponding power generation area of ​​the offshore wind farm, and obtaining the power output monitoring result of the offshore wind farm. Compared to existing technologies, this method involves real-time monitoring of all power generation equipment to obtain its operational status data. Based on this, and combined with the arrangement rules corresponding to each power generation type, it obtains the output monitoring data of the equipment set and the output monitoring maps of each type of power plant. By summing these data, an output monitoring map of the offshore wind farm is constructed. Compared to existing technologies that rely solely on the output monitoring of individual equipment to obtain the power generation output of the equipment set, this method can more intuitively and comprehensively reflect the actual power generation output of the offshore wind farm, and has higher accuracy.

[0074] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention for those skilled in the art.

Claims

1. A method for monitoring the power output of an offshore wind farm, characterized in that, include: Real-time monitoring of all power generation equipment in the offshore wind farm, and acquisition of operating status data of all power generation equipment; Based on the working status data of each power generation device, and according to the arrangement rules corresponding to each power generation device type, the output monitoring data of the equipment set corresponding to each power generation device type is obtained, and then the output monitoring map of each type of power plant is obtained based on the output monitoring data. The output monitoring maps of the various types of power plants are summed to construct the output monitoring map of the corresponding power generation area of ​​the offshore wind farm, and the output monitoring results of the offshore wind farm are obtained. The types of power generation equipment include photovoltaic inverters and wind turbines; the types of equipment assemblies include photovoltaic combiner boxes and wind turbine collector cables; the types of power generation sites include wind farms and photovoltaic power stations. After constructing the power output monitoring map of the corresponding power generation area of ​​the offshore wind farm, the method further includes: Obtain the output plan map of the offshore wind farm corresponding to the power generation area level; The output monitoring chart and the output plan chart are compared, and the deviation between the output monitoring chart and the output plan chart is calculated to see if it is greater than a preset first threshold. If the deviation is greater than the first threshold, an abnormal prompt is issued. The power generation output monitoring method also includes: The active power variation of each type of power plant is obtained from the output monitoring diagram of each type of power plant. An alarm is issued when the change in active power exceeds a preset second threshold.

2. The method for monitoring the power output of an offshore wind farm as described in claim 1, characterized in that, The operating status data of the fan includes a split signal and a combined signal; After obtaining the power output monitoring results of the offshore wind farm, the method further includes: An alarm is triggered based on the fan's position and position signals to indicate the remote signaling change status of the fan.

3. The method for monitoring the power output of an offshore wind farm as described in claim 1, characterized in that, The wind farm site includes a wind measurement tower; The power generation output monitoring method also includes: The wind direction and speed of the wind measuring tower are monitored in real time, and the wind direction, wind speed, temperature, humidity and pressure of each layer of the wind measuring tower are determined based on the wind direction and wind speed of the wind measuring tower.

4. A power generation output monitoring device for an offshore wind farm, characterized in that, It includes a working status data acquisition module, a power plant monitoring module, and an offshore wind farm monitoring module; among which, The working status data acquisition module is used to monitor all power generation equipment of the offshore wind farm in real time and acquire the working status data of all power generation equipment. The power plant monitoring module is used to obtain the output monitoring data of the equipment set corresponding to each type of power generation equipment based on the working status data of each power generation equipment and according to the arrangement rules corresponding to each type of power generation equipment, and then obtain the output monitoring map of each type of power plant based on the output monitoring data. The offshore wind farm monitoring module is used to sum the output monitoring maps of the various types of power generation stations, construct the output monitoring map of the corresponding power generation area of ​​the offshore wind farm, and obtain the output monitoring results of the offshore wind farm. The types of power generation equipment include photovoltaic inverters and wind turbines; the types of equipment assemblies include photovoltaic combiner boxes and wind turbine collector cables; the types of power generation sites include wind farms and photovoltaic power stations. After the offshore wind farm monitoring module constructs the power output monitoring map of the corresponding power generation area of ​​the offshore wind farm, the offshore wind farm monitoring module is further used for: Obtain the output plan map of the offshore wind farm corresponding to the power generation area level; The output monitoring chart and the output plan chart are compared, and the deviation between the output monitoring chart and the output plan chart is calculated to see if it is greater than a preset first threshold. If the deviation is greater than the first threshold, an abnormal prompt is issued. The active power variation of each type of power plant is obtained from the output monitoring diagram of each type of power plant. An alarm is issued when the change in active power exceeds a preset second threshold.

5. A terminal device, characterized in that, The method includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the power generation monitoring method for an offshore wind farm as described in any one of claims 1 to 3.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program, wherein, when the computer program is executed, it controls the device containing the computer-readable storage medium to perform the power generation monitoring method for an offshore wind farm as described in any one of claims 1 to 3.

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