Wind turbine generator system power production evaluation system and method

Abstract

Provided are a wind turbine generator system and a method for evaluating power generation. The wind turbine generator system comprises: a control unit configured to control a group of wind turbine generators to alternately run each of a plurality of control strategies according to a preset operation interval; an acquisition unit configured to acquire power generation calculation parameters of each wind turbine generator according to a preset time interval when the group of wind turbine generators is running, wherein the power generation calculation parameters comprise operation-related parameters and meteorological-related parameters; and an evaluation unit configured to evaluate power generation of the group of wind turbine generators under each control strategy based on the power generation calculation parameters.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind power, and more particularly, to a wind turbine generator system and method for evaluating power generation. BACKGROUND

[0002] As a green, clean and sustainable friendly energy, the power generation of wind turbine generator system is always the focus of attention. Due to the uncertainty of wind speed measurement, how to accurately evaluate the power generation and improve the power generation is a long-term topic, and therefore, the accurate evaluation of power generation and power generation improvement is increasingly important.

[0003] However, the power generation performance of the wind turbine generator system is greatly affected by the external environment. In the existing evaluation process of the power generation of the wind turbine generator system under different operating states, the influence of the change of the external environment is usually not fully considered, or even if the change of the external environment is considered, the consistency of the external environment under different operating states cannot be effectively guaranteed. On the other hand, in the existing analysis process of the evaluation data of the power generation, the influence of different wind directions on the power generation is not considered.

[0004] Therefore, a scheme is needed which can avoid the influence of the change of the external environment in the process of evaluating the power generation of the wind turbine generator system, and further consider the influence of the wind direction and other factors on the power generation. SUMMARY

[0005] In order to at least solve the above-mentioned problems in the prior art, the present application provides a wind turbine generator system and method for evaluating power generation.

[0006] According to an aspect of the present application, a wind turbine generator system for evaluating power generation is provided, the system comprising: a control unit configured to control a group of wind turbine generators to alternately run each control strategy in a plurality of control strategies according to a preset operating interval; an acquisition unit configured to acquire power generation calculation parameters of each wind turbine generator according to a preset time interval when the group of wind turbine generators is running, wherein the power generation calculation parameters comprise operating related parameters and meteorological related parameters; and an evaluation unit configured to evaluate the power generation of the group of wind turbine generators under each control strategy based on the power generation calculation parameters.

[0007] The system can further comprise a selection unit configured to select representative wind turbine generators for different wind direction sectors from the group of wind turbine generators, wherein the acquisition unit can be configured to determine the meteorological related parameters acquired from the representative wind turbine generators corresponding to the wind direction of each acquisition time as the meteorological related parameters of each wind turbine generator at the acquisition time, and the evaluation unit can be configured to evaluate the power generation of the group of wind turbine generators for different wind direction sectors under each control strategy.

[0008] The operation-related parameters can include state parameters and unit power parameters of each wind turbine generator unit. The evaluation unit can include: a preprocessing unit configured to determine valid power generation calculation parameters of each wind turbine generator unit in the collected power generation calculation parameters, wherein when all the power generation calculation parameters of the wind turbine generator units collected at the same time are available according to the state parameters of each wind turbine generator unit, the power generation calculation parameters of each wind turbine generator unit collected at the time are determined as the valid power generation calculation parameters of the wind turbine generator unit; and a calculation unit configured to evaluate the power generation of the group of wind turbine generator units under each control strategy based on the valid power generation calculation parameters of each wind turbine generator unit.

[0009] The preset operation interval can be set such that the wind turbine generator units are stably operated during each operation interval, and the external operating environment of the wind turbine generator units is consistent during a plurality of continuous operation intervals in which the plurality of control strategies are operated in turn.

[0010] According to another aspect of the present application, a wind turbine generator unit power generation evaluation method is provided, the method comprising: controlling a group of wind turbine generator units to alternately operate each of a plurality of control strategies according to a preset operation interval; collecting power generation calculation parameters of each wind turbine generator unit according to a preset time interval when the group of wind turbine generator units is operated, wherein the power generation calculation parameters include operation-related parameters and meteorological-related parameters; and evaluating the power generation of the group of wind turbine generator units under each control strategy based on the power generation calculation parameters.

[0011] The method can further comprise: selecting representative wind turbine generator units for different wind direction sectors from the group of wind turbine generator units, wherein the step of collecting the power generation calculation parameters of each wind turbine generator unit can comprise: determining the meteorological-related parameters collected from the representative wind turbine generator units corresponding to the wind direction of each collection time as the meteorological-related parameters of each wind turbine generator unit at the collection time, and the evaluation step can comprise: evaluating the power generation of the group of wind turbine generator units for different wind direction sectors under each control strategy.

[0012] The operation-related parameters can include state parameters and unit power parameters of each wind turbine generator unit. The evaluation step can include determining valid power generation calculation parameters of each wind turbine generator unit from the collected power generation calculation parameters, wherein when all the power generation calculation parameters of all the wind turbine generator units collected at the same time are available according to the state parameters of each wind turbine generator unit, the power generation calculation parameters of each wind turbine generator unit collected at the time are determined as the valid power generation calculation parameters of the wind turbine generator unit; and evaluating the power generation of the group of wind turbine generator units under each control strategy based on the valid power generation calculation parameters of each wind turbine generator unit.

[0013] The preset operation interval can be set such that the wind turbine generator units are stably operated during each operation interval, and the external operation environment of the wind turbine generator units is consistent during a plurality of continuous operation intervals in which the plurality of control strategies are operated in sequence.

[0014] According to another aspect of the present application, a computer readable storage medium is provided, characterized in that the computer readable storage medium has stored thereon computer program instructions which, when executed by a processor, implement the various methods as described above.

[0015] According to another aspect of the present application, a computer device is provided, characterized by a readable medium having stored thereon computer program instructions which include instructions for executing the various methods as described above.

[0016] By applying the wind turbine generator power generation evaluation system and method according to the exemplary embodiments of the present application, the influence of external factors on the power generation performance of wind turbine generators under different control strategies can be reduced by alternately operating a plurality of control strategies.

[0017] In addition, in the wind turbine generator power generation evaluation system and method according to the exemplary embodiments of the present application, by using representative wind turbine generators selected for different wind direction sectors to collect meteorological-related parameters, the hardware and software costs required for collecting meteorological-related parameters can be reduced, and the relevance and accuracy of the collected parameter data are also improved, further improving the accuracy and reliability of the wind turbine generator power generation evaluation results.

[0018] In addition, since the power characteristics and power generation are also evaluated according to wind direction sectors, the performance of wind turbine generators under different control strategies is more comprehensively displayed, further improving the reliability of the evaluation. BRIEF DESCRIPTION OF DRAWINGS

[0019] These and / or other aspects and advantages of the present application will become apparent and more readily appreciated from the following detailed description, taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 is a block diagram of a wind turbine generator set power generation evaluation system according to an exemplary embodiment of the present application;

[0021] Figure 2 is a block diagram of an evaluation unit of a wind turbine generator set power generation evaluation system according to an exemplary embodiment of the present application;

[0022] Figure 3 is a flowchart of a wind turbine generator set power generation evaluation method according to an exemplary embodiment of the present application.

[0023] Hereinafter, the present application will be described in detail with reference to the accompanying drawings, in which like or similar elements are referred to by the same or similar reference numerals throughout the drawings. DETAILED DESCRIPTION

[0024] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of exemplary embodiments of the present application as defined by the claims and their equivalents. The description includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the application. In addition, descriptions of well-known functions and constructions can be omitted for clarity and conciseness.

[0025] Figure 1 is a block diagram of a wind turbine generator set power generation evaluation system 100 according to an exemplary embodiment of the present application.

[0026] Referring to Figure 1 , a wind turbine generator set power generation evaluation system 100 (hereinafter, simply referred to as “evaluation system 100”) according to an exemplary embodiment of the present application can include a control unit 110, a collection unit 120, and an evaluation unit 130.

[0027] The control unit 110 can be configured to control a group of wind turbine generator sets to alternately operate each of a plurality of control strategies according to a preset operation interval. In an exemplary embodiment of the present application, the group of wind turbine generator sets can be a plurality of wind turbine generator sets in a wind farm that are geographically close and consistent in environmental changes such as wind speed, wind direction, etc.

[0028] In addition, in the exemplary embodiments of the present application, a suitable preset operation interval (e.g., the operation interval can be set to 1 hour) can be selected according to the characteristics of different control strategies, so that the wind turbine generator set can be stably operated during each operation interval (i.e., the wind turbine generator set can be stably operated for a period of time during the operation of one operation interval of each control strategy), and the external operating environment of the wind turbine generator set is substantially consistent during continuous operation intervals of the plurality of control strategies in turn (e.g., when three control strategies are alternately operated, so that the external operating environment (e.g., external meteorological conditions) changes little during continuous three operation intervals of the three control strategies in turn, thereby reducing the influence of the change of the external operating environment on the difference between the power generation evaluation results of the wind turbine generator set under each control strategy). Here, different control strategies can be distinguished by setting different state words, for example, the control state word of control strategy 1 can be set to 1, the control state word of control strategy 2 can be set to 2, and so on.

[0029] The acquisition unit 120 can be configured to acquire the power generation calculation parameters of each wind turbine generator set at a preset time interval (e.g., a preset sampling frequency) when a group of wind turbine generator sets is operated. Here, each wind turbine generator set should be accurately time-synchronized (such as GPS positioning) so as to ensure that the acquisition time recorded when the relevant power generation calculation parameters are acquired is consistent. In addition, the acquisition unit 120 can also obtain the control state word from the control unit 110 or the wind turbine generator set when acquiring, so as to know which control strategy the acquired power generation calculation parameters are for.

[0030] In the exemplary embodiments of the present application, the power generation calculation parameters can include operation-related parameters and meteorological-related parameters.

[0031] In detail, the operation-related parameters can include state parameters and unit power parameters of each wind turbine generator set. Here, the state parameters can include a unit available state word parameter, or can include a grid-connected state word parameter and a power-limited state word parameter, or can include all of the available state word parameter, the grid-connected state word parameter and the power-limited state word parameter. The unit available state word parameter can indicate whether the wind turbine generator set is in an available state, the grid-connected state word parameter can indicate whether the wind turbine generator set is in a grid-connected state, and the power-limited state word parameter can indicate whether the wind turbine generator set is in a power-limited state. However, it should be understood that the state parameters that can be used in the present application are not limited to the above listed state parameters, but more state parameters can also be added according to actual needs, or part of the state parameters can be deleted. In addition, the unit power parameters can be measured by power measuring instruments (e.g., power transducers).

[0032] The meteorological related parameters can include temperature, and wind direction and wind speed of the incoming wind. In addition, the meteorological related parameters can also include air pressure and / or humidity. However, it should be understood that the meteorological related parameters that can be used are not limited to the above listed meteorological parameters, but more kinds of meteorological related parameters can be added according to actual needs, or some of the meteorological related parameters can be deleted.

[0033] In the exemplary embodiment of the present application, the meteorological related parameters of each wind turbine generator can be collected respectively. Alternatively, the evaluation system 100 can further comprise a selection unit (not shown) to select representative wind turbine generators for different wind direction sectors in a group of wind turbine generators, so that the collection unit 120 can determine the meteorological related parameters collected from the representative wind turbine generators corresponding to the wind direction of the collection time as the meteorological related parameters of each wind turbine generator at the collection time. For example, the selection unit (not shown) can select one representative wind turbine generator for the wind direction sector of 0°-10°, the wind direction sector of 10°-20°,..., the wind direction sector of 350°-360° in a group of wind turbine generators respectively, and then, for example, when the incoming wind direction at the collection time t is 8° (belonging to the wind direction sector of 0°-10°), the meteorological related parameters collected at the representative wind turbine generator corresponding to the wind direction sector of 0°-10° can be determined as the meteorological related parameters of each wind turbine generator in the group of wind turbine generators at the collection time t, and so on. In this way, it is not necessary to collect the meteorological related parameters for each wind turbine generator respectively, and thus the hardware and software costs required for collecting the meteorological related parameters can be reduced. On the other hand, since the meteorological related parameters are collected by using the representative wind turbine generators selected for different wind direction sectors as above, the correlation degree and accuracy of the collected data are advantageously improved, and thus the accuracy and reliability of the evaluation result of the power generation of the wind turbine generators are further improved.

[0034] In the exemplary embodiment of the present application, the representative wind turbine generator is the wind turbine generator located at the position where the wind speed is not affected by or is affected by the upstream obstacle to the minimum in the corresponding wind direction sector. Therefore, the representative wind turbine generators selected for different wind direction sectors can be different. In addition, when selecting the representative wind turbine generators, for the incoming wind direction of 360°, it can be uniformly divided into a plurality of wind direction sectors (for example, 72 wind direction sectors uniformly divided by 5°, or 36 wind direction sectors uniformly divided by 10° as shown in the above example), or it can also be non-uniformly divided into a plurality of wind direction sectors (i.e., the sector angles of the plurality of wind direction sectors divided can not be the same).

[0035] Here, the above-mentioned meteorological related parameters can be collected by setting up a wind measurement tower (e.g. according to the standard of IEC 61400-12-1) around each wind turbine generator set or a representative wind turbine generator set, or a nacelle radar can be installed on the wind turbine generator set, or a ground radar can be used, or the wind speed, wind direction can be measured by using a turbine anemometer, the temperature can be measured by using a turbine sensor, the air density can be calculated by using the temperature and the altitude, etc. It should be understood that the devices for collecting the meteorological related parameters are not limited to those listed above, and various other known devices can also be used to collect the above-mentioned meteorological related parameters.

[0036] The evaluation unit 130 can evaluate the power generation of the set of wind turbine generator sets under each control strategy based on the power generation calculation parameters collected by the collection unit 120. In the exemplary embodiment of the present application, the evaluation unit 130 can evaluate the power generation of the set of wind turbine generator sets under each control strategy for different wind direction sectors, which will be described below in conjunction with Figure 2 This will be described in detail.

[0037] Figure 2 is a schematic block diagram of the evaluation unit 130 of the wind turbine generator set power generation evaluation system 100 according to the exemplary embodiment of the present application.

[0038] Referring to Figure 2 , the evaluation unit 130 can include a preprocessing unit 210 and a calculation unit 220.

[0039] The preprocessing unit 210 can be used to determine the valid power generation calculation parameters of each wind turbine generator set in the collected power generation calculation parameters. In the exemplary embodiment of the present application, when all the power generation calculation parameters of the wind turbine generator sets collected at the same time are available according to the state parameters of each wind turbine generator set, the power generation calculation parameters of each wind turbine generator set collected at the time can be determined as the valid power generation calculation parameters of the wind turbine generator set.

[0040] For example, the preprocessing unit 210 can first process the raw data collected from each wind turbine generator set, and filter out the data available for each set. For example, if there is a state parameter indicating an abnormal operating state (e.g., the set available state word parameter indicates that the wind turbine generator set is in an unavailable state, etc.) among the power generation calculation parameters collected at time t1 for wind turbine generator set A, the parameters collected at time t1 for wind turbine generator set A are considered as unavailable data. Then, the preprocessing unit 210 can filter out the data available for all wind turbine generator sets at the same time as the input data of the calculation unit 220 for power generation evaluation. For example, if the power generation calculation parameters collected at time t2 for all wind turbine generator sets are available data, they can be input to the calculation unit 220 as valid power generation calculation parameters. If the power generation calculation parameters collected at time t3 for each wind turbine generator set are determined as unavailable data, the power generation calculation parameters collected at time t3 for each wind turbine generator set can not be considered as valid power generation calculation parameters to be input to the calculation unit 220.

[0041] In the exemplary embodiment of the present application, since the collection frequencies of various parameters can or can not be the same (e.g., the collection frequency for meteorological related parameters can be set to a minimum of 1 Hz, and the sampling frequency of the state parameters can be preferably set to 50 Hz), when the collection frequencies of the above-mentioned various parameters are inconsistent, the preprocessing unit 210 can also perform the above-mentioned data filtering process after interpolating and unifying the sampling frequencies (e.g., making them consistent with the frequency of the parameter with the highest frequency in the collection process).

[0042] Then, the calculation unit 220 can evaluate the power generation of a set of wind turbine generator sets under each control strategy based on the valid power generation calculation parameters of each wind turbine generator set.

[0043] By way of example only, the computing unit 220 can first calculate the statistical value (e.g., average value) of each of the effective power generation amount calculation parameters for a predetermined time period (e.g., 10 minutes) for each control strategy. For example, in the case of using a representative wind turbine generator, the statistical value (e.g., average value) of the wind direction, wind speed, air pressure, temperature, humidity, etc. parameters collected by the representative wind turbine generator for 10 minutes can be calculated, and for the power parameter, the average power of each sampling time of each wind turbine generator for 10 minutes can be calculated. Thus, a set of wind speed - wind direction - power data groups for 10 minutes can be statistically obtained. Alternatively, the wind speed value obtained by the above statistical value calculation can be normalized using the temperature, humidity, air pressure, etc. parameters to be the inflow wind speed in the above data group under the same air density. In this way, the computing unit 220 can calculate a plurality of such data groups.

[0044] Subsequently, the computing unit 220 can statistically analyze the power characteristics based on the obtained data groups according to the wind speed and wind direction (e.g., according to the wind speed 0.5 m / s and the wind direction 5° for one sector), and perform a matrix analysis of the wind speed - wind direction - power, as shown in Table 1 below.

[0045] Table 1: Power Statistics Table

[0046]

[0047] Each power shown in Table 1 can be a power value obtained by statistically averaging the power at the corresponding wind speed and wind direction calculated by the computing unit 220. In addition, for example, 0 degrees in Table 1 can represent the 0°-5° wind direction sector, 5 degrees can represent the 5°-10° wind direction sector, and so on.

[0048] In the exemplary embodiment of the present application, the computing unit 220 can also calculate the power generation amount for each wind speed and wind direction sector based on the power statistical results of Table 1, and perform a matrix analysis of the wind speed - wind direction - power generation amount, as shown in Table 2 below.

[0049] Table 2: Power Generation Statistics Table

[0050]

[0051] As shown in Table 2, the power generation evaluation results of the wind turbine generator can be obtained according to the wind direction sector by the above calculation process. In addition, similarly, 0 degrees in Table 2 can represent the 0°-5° wind direction sector, 5 degrees can represent the 5°-10° wind direction sector, and so on.

[0052] In the exemplary embodiment of the present application, the wind frequency used in the calculation of the power generation amount can adopt a historical wind frequency distribution of the region, and is given according to different wind direction and wind speed matrices. Here, the wind frequency distribution provides the statistical proportion of the incoming flow wind of the region in different wind direction and wind speed intervals. In addition, the total value of the power generation amount of a group of wind turbine generators can be the algebraic sum of all the values in Table 2.

[0053] Here, since different control strategies are distinguished by control state words, the effective power generation amount calculation parameters for different control strategies can be easily obtained and corresponding power and power generation amount calculations can be performed, so that the power and power generation amount under different control strategies can be evaluated and compared according to wind direction sector and wind speed and other factors according to the above-mentioned wind speed-wind direction-power, wind speed-wind direction-power generation amount matrix analysis method, further improving the reliability of the evaluation.

[0054] Figure 3 is a flow chart of a wind turbine generator power generation amount evaluation method according to an exemplary embodiment of the present application.

[0055] As shown in Figure 3 In step S301, the control unit 110 of the evaluation system 100 can control a group of wind turbine generators to be evaluated to alternately run each of a plurality of control strategies according to a preset running interval. In the exemplary embodiment of the present application, the preset running interval can be set so that the wind turbine generators are stably running during each running interval, and the external running environment of the wind turbine generators is consistent during a plurality of consecutive running intervals in which the plurality of control strategies are sequentially run.

[0056] After that, in step S302, the acquisition unit 120 can acquire power generation amount calculation parameters of each wind turbine generator according to a preset time interval when the group of wind turbine generators is running. Here, the power generation amount calculation parameters can include running related parameters and meteorological related parameters. In the exemplary embodiment of the present application, a selection unit (not shown) of the evaluation system 100 can select representative wind turbine generators for different wind direction sectors from the group of wind turbine generators, and the acquisition unit 120 can determine the meteorological related parameters acquired from the representative wind turbine generators corresponding to the wind direction of each acquisition time as the meteorological related parameters of each wind turbine generator acquired at the acquisition time. Here, the representative wind turbine generators can be wind turbine generators located at a wind speed not affected by upstream obstacles or least affected by upstream obstacles in the corresponding wind direction sector.

[0057] At step S303, the power generation of the group of wind turbines under each control strategy can be evaluated by the evaluation unit 130 based on the power generation calculation parameters. More specifically, the evaluation unit 130 can evaluate the power generation of the group of wind turbines under each control strategy for different wind direction sectors.

[0058] The above has been described in detail in connection with Figure 1 and Figure 2 The operations of the evaluation system 100 have been described in detail, and therefore, for the sake of brevity, will not be repeated here.

[0059] By applying the wind turbine power generation evaluation system and method according to the exemplary embodiments of the present disclosure, the influence of external factors on the power generation performance of wind turbines under different control strategies can be reduced by alternatingly running multiple control strategies.

[0060] Furthermore, in the wind turbine power generation evaluation system and method according to the exemplary embodiments of the present disclosure, by using representative wind turbines selected for different wind direction sectors to collect meteorological related parameters, the hardware and software costs required for collecting meteorological related parameters can be reduced, and the relevance and accuracy of the collected parameter data can also be improved, further improving the accuracy and reliability of the wind turbine power generation evaluation results.

[0061] The above has been described in detail in connection with Figures 1 to 3 The wind turbine power generation evaluation system and method according to the exemplary embodiments of the present disclosure have been described. However, it should be understood that the devices and systems shown in the drawings can be configured as software, hardware, firmware, or any combination thereof, which performs specific functions. For example, these systems and devices can correspond to dedicated integrated circuits, to pure software code, or to a combination of software and hardware modules. Furthermore, one or more functions implemented by these systems or devices can also be uniformly performed by components in a physical entity device (e.g., a processor, a client, or a server, etc.).

[0062] Moreover, the above-described methods can be implemented by way of computer program instructions, stored on a computer readable storage medium, which are executed by a processor or other type of computational apparatus to implement the methods. The storage medium can include, but is not limited to, magnetic storage media, optical storage media, and / or other storage media. The computer readable storage medium can be distributed among computer systems connected by a network and / or other devices. The computer readable storage medium can be distributed among multiple computer systems and / or other devices.

[0063] For example, according to the exemplary embodiments of the present application, a computer readable storage medium storing instructions can be provided, wherein the instructions, when executed by at least one computing device, cause the at least one computing device to perform the following steps: controlling a group of wind turbine generators to alternately run each of a plurality of control strategies according to a preset running interval; collecting a power generation calculation parameter of each wind turbine generator according to a preset time interval while the group of wind turbine generators are running, wherein the power generation calculation parameter includes a running related parameter and a meteorological related parameter; and evaluating a power generation of the group of wind turbine generators under each control strategy based on the power generation calculation parameter.

[0064] The instructions stored in the above-described computer readable storage medium can be executed in an environment deployed in a computer device such as a client, a host, a proxy device, a server, etc. It should be noted that the instructions can also be used to perform additional steps other than the above-described steps or perform more specific processing when performing the above-described steps, the content of which has been mentioned in the description of the related system and method, and thus will not be described herein again to avoid repetition. Figures 1 to 3

[0065] It should be noted that the wind turbine generator power generation evaluation system and method according to the exemplary embodiments of the present disclosure can completely rely on the execution of computer programs or instructions to implement the corresponding functions, i.e., each device corresponds to each step in the functional architecture of the computer program, so that the entire system is called by a special software package (e.g., lib library) to implement the corresponding functions.

[0066] On the other hand, when​Figure 1 and Figure 2 When the systems and apparatuses shown in FIGS. 1-3 are implemented in software, firmware, middleware or microcode, program code or code segments to perform the corresponding operations can be stored in a computer-readable medium such as a storage medium, so that at least one processor or at least one computing device can perform the corresponding operations by reading and executing the program code or code segments.

[0067] For example, according to an exemplary embodiment of the present application, a computer device including a readable medium storing computer program instructions can be provided, wherein the instructions, when executed by at least one computing device, cause the at least one computing device to perform the following steps: controlling a group of wind turbine generators to alternately run each of a plurality of control strategies according to a preset running interval; collecting a power generation calculation parameter of each wind turbine generator according to a preset time interval when the group of wind turbine generators is running, wherein the power generation calculation parameter includes a running-related parameter and a meteorological-related parameter; and evaluating a power generation of the group of wind turbine generators under each control strategy based on the power generation calculation parameter.

[0068] In particular, the system described above can be deployed in a server or a client, or on a node in a distributed network environment. In addition, the system can be a PC computer, a tablet device, a personal digital assistant, a smart phone, a web application, or other devices capable of executing the above-mentioned instruction set. In addition, the system can also include a video display (such as a liquid crystal display) and a user interaction interface (such as a keyboard, a mouse, a touch input device, etc.). In addition, all components of the system can be connected to each other via a bus and / or a network.

[0069] Here, the system is not necessarily a single system, but can also be a collection of any device or circuit capable of executing the above-mentioned instructions (or instruction set) alone or jointly. The system can also be part of an integrated control system or a system manager, or can be configured as a portable electronic device that interfaces with a local or remote (e.g., via wireless transmission) interface.

[0070] In the system, the at least one computing device can include a central processing unit (CPU), a graphics processing unit (GPU), a programmable logic device, a dedicated processor system, a microcontroller, or a microprocessor. By way of example, and without limitation, the at least one computing device can also include an analog processor, a digital processor, a microprocessor, a multi-core processor, a processor array, a network processor, etc. The computing device can execute instructions or code stored in one of the storage devices, which can also store data. Instructions and data can also be sent and received over a network via a network interface device, which can employ any known transmission protocol.

[0071] The storage device can be integral to the computing device, e.g., RAM or flash memory disposed within an integrated circuit microprocessor, etc. Further, the storage device can comprise a separate device, such as an external disk drive, storage array, or other storage device usable by any database system. The storage device and the computing device can be operatively coupled, or can communicate with each other, e.g., through an I / O port, network connection, etc., such that the computing device can read instructions stored in the storage device.

[0072] While the application has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application as defined by the appended claims.

Claims

1. A wind turbine generator power generation assessment system, characterized in that, The system includes: The control unit is configured to control a group of wind turbine generators to alternately operate each of a variety of control strategies at preset operating intervals. The data acquisition unit is configured to collect power generation calculation parameters of each wind turbine at preset time intervals during the operation of the group of wind turbine generators, wherein the power generation calculation parameters include operation-related parameters and meteorological-related parameters. The evaluation unit is configured to evaluate the power generation of the group of wind turbine generators under each control strategy based on the power generation calculation parameters. The operational parameters include the status parameters and power parameters of each wind turbine generator set. The evaluation unit includes: The preprocessing unit is configured to determine the effective power generation calculation parameters for each wind turbine generator set from the collected power generation calculation parameters. When it is determined, based on the state parameters of each wind turbine generator set, that the power generation calculation parameters of all wind turbine generator sets collected at the same time are available, the power generation calculation parameters of each wind turbine generator set collected at that time are determined as the effective power generation calculation parameters of that wind turbine generator set. The calculation unit is configured to evaluate the power generation of the group of wind turbines under each control strategy based on the effective power generation calculation parameters of each wind turbine.

2. The system as described in claim 1, characterized in that, The system further includes a selection unit configured to select representative wind turbines for different wind direction sectors from the group of wind turbines. The acquisition unit is configured to determine the meteorological relevant parameters collected from representative wind turbine generators corresponding to the wind direction at each acquisition time as the meteorological relevant parameters for each wind turbine generator at that acquisition time. The evaluation unit is configured to evaluate the power generation of the group of wind turbine generators for different wind direction sectors under each control strategy.

3. The system as described in claim 1, characterized in that, The preset operating interval is set to ensure that the wind turbine operates stably during each operating interval and that the external operating environment of the wind turbine remains consistent during multiple consecutive operating intervals in which the various control strategies are executed sequentially.

4. A method for evaluating the power generation of a wind turbine generator set, characterized in that, The method includes: Control a group of wind turbine generators to alternately operate each of multiple control strategies according to a preset operating interval; During the operation of the group of wind turbine generator sets, the power generation calculation parameters of each wind turbine generator set are collected at preset time intervals, wherein the power generation calculation parameters include operation-related parameters and meteorological-related parameters; Based on the power generation calculation parameters, the power generation of the group of wind turbine generators under each control strategy is evaluated. The operational parameters include the status parameters and power parameters of each wind turbine generator set. The evaluation steps include: The effective power generation calculation parameters for each wind turbine are determined from the collected power generation calculation parameters. When it is determined that the power generation calculation parameters of all wind turbines collected at the same time are available based on the state parameters of each wind turbine, the power generation calculation parameters of each wind turbine collected at that time are determined as the effective power generation calculation parameters of that wind turbine. Based on the effective power generation calculation parameters of each wind turbine generator set, the power generation of the group of wind turbine generator sets under each control strategy is evaluated.

5. The method as described in claim 4, characterized in that, The method further includes: selecting representative wind turbine generator sets for different wind direction sectors from the group of wind turbine generator sets. The step of collecting power generation calculation parameters for each wind turbine includes: determining the meteorological relevant parameters collected from representative wind turbines corresponding to the wind direction at each collection time as the meteorological relevant parameters for each wind turbine at the collection time, and The evaluation steps include: evaluating the power generation of a group of wind turbine generators under each control strategy for different wind direction sectors.

6. The method as described in claim 4, characterized in that, The preset operating interval is set to ensure that the wind turbine operates stably during each operating interval and that the external operating environment of the wind turbine remains consistent during multiple consecutive operating intervals in which the various control strategies are executed sequentially.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer program instructions that, when executed by a processor, implement the method as described in any one of claims 4 to 6.

8. A computer device comprising a readable medium storing computer program instructions, characterized in that, The computer program instructions include instructions for performing the method as described in any one of claims 4 to 6.

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