Device, method, equipment and medium for detecting response time of wind farm frequency regulation

Abstract

The application provides a kind of wind farm frequency regulation response time detection device, method, equipment and medium, comprising: analog power grid frequency module, multi-output interface and communication module and measurement calculation module;The analog power grid frequency module, multi-output interface and communication module and measurement calculation module are interconnected;The analog power grid frequency module is used to simulate frequency regulation instruction and three-phase instantaneous voltage waveform according to wind farm information;The multi-output interface and communication module are used to communicate with the external controller in real time, send the instruction and waveform to the external controller, receive the feedback information of the external controller, and transmit to the measurement calculation module in the detection device for synchronous data processing;The measurement calculation module is used to calculate the frequency deviation and frequency change rate of wind farm according to the feedback information and the collected grid point data, and calculate the frequency regulation response time according to the frequency deviation, frequency change rate and feedback information.

Description

Technical Field

[0001] This invention belongs to the field of new energy access and control technology, specifically relating to a detection device, method, equipment and medium for wind farm frequency regulation response time. Background Technology

[0002] With the accelerated shift towards cleaner energy sources, a large number of new wind farms will be connected to the grid in the near future. Wind turbines, connected to the grid via power electronic devices, will exhibit characteristics such as low inertia, weak support, and wide-band harmonics, necessitating active participation from wind farms in power system frequency regulation, voltage regulation, and peak shaving to overcome adverse effects. Currently, several regional power grid companies in China have proposed specific requirements for wind farm participation in frequency regulation. Newly connected wind turbines already possess frequency regulation capabilities, and some existing wind turbines will also gain frequency regulation capabilities after retrofitting. However, during on-site testing of wind farm frequency regulation capabilities, the inertia and primary frequency regulation often overlap in terms of frequency regulation power, making it difficult to accurately obtain the inertia response time and primary frequency regulation response time separately. Furthermore, when a wind farm includes multiple main transformers, multiple wind turbine manufacturers, and energy storage devices or photovoltaic modules, multiple frequency controllers may exist, each operating independently. In such cases, it is difficult to conduct on-site testing of the entire farm's inertia or primary frequency regulation as a unified whole. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this invention proposes a device for detecting the frequency regulation response time of a wind farm, comprising:

[0004] Simulated power grid frequency module, multi-output interface and communication module, and measurement and calculation module;

[0005] The analog power grid frequency module, the multi-output interface and communication module and the measurement and calculation module are interconnected;

[0006] The simulated power grid frequency module is used to simulate frequency regulation commands and three-phase instantaneous voltage waveforms based on the collected information from the wind farm.

[0007] The multi-output interface and communication module are used for real-time bidirectional communication with an external controller, sending the frequency adjustment command and three-phase instantaneous voltage waveform to the external controller, receiving feedback information from the external controller, and transmitting it to the measurement and calculation module in the detection device for synchronous data processing.

[0008] The measurement and calculation module is used to calculate the wind farm frequency deviation and frequency change rate based on the feedback information and the collected grid connection point data, and to calculate the frequency regulation response time based on the frequency deviation, frequency change rate and feedback information.

[0009] In the preferred embodiment of the feedback information, the analog power grid frequency module is specifically used for:

[0010] The system generates voltage and frequency as needed, outputs three-phase instantaneous voltage waveforms and control signals, and outputs preset wind farm inertia signals, primary frequency regulation signals, and control signals to form a frequency regulation command. Preferably, the feedback information includes at least: wind farm frequency regulation power, energy storage frequency regulation power, and feedback signals.

[0011] Preferably, the external controller includes multiple wind power frequency regulation controllers and energy storage controllers;

[0012] The wind power frequency control controller is used to preset the wind farm frequency control power according to the rated capacity of the external wind turbine.

[0013] The energy storage controller is used to preset the energy storage frequency regulation power according to the rated capacity of the external energy storage device.

[0014] Preferably, the frequency adjustment command includes a frequency adjustment command enable timing sequence, which includes at least one or more of the following:

[0015] The adjustment command first timing sequence, the adjustment command second timing sequence, and the adjustment command third timing sequence; among which,

[0016] The first timing sequence of the adjustment command is to enable the inertia control signal and lock out the primary frequency modulation signal;

[0017] The second timing sequence of the adjustment command is the inertia control signal lockout and the primary frequency modulation signal enable;

[0018] The third timing sequence of the adjustment command is to enable the inertia control signal and the primary frequency modulation signal.

[0019] Preferably, the grid connection point data includes at least one or more of the following:

[0020] Three-phase voltage and three-phase current at the grid connection point of wind farms / collector lines, three-phase voltage and three-phase current at the grid connection point of energy storage equipment, and three-phase voltage and three-phase current at the grid connection point of photovoltaic inverters.

[0021] This invention also proposes a method for detecting the frequency regulation response time of a wind farm, comprising:

[0022] The simulated power grid frequency module in the detection device simulates frequency regulation commands and three-phase instantaneous voltage waveforms based on the collected information from the wind farm.

[0023] The frequency is tested according to the frequency adjustment command and the three-phase instantaneous voltage waveform through the multi-output interface and communication module in the detection device, feedback information is obtained and transmitted to the measurement and calculation module in the detection device.

[0024] The measurement and calculation module calculates the wind farm frequency deviation and frequency change rate based on the feedback information and the collected grid connection point data, and calculates the frequency regulation response time based on the frequency deviation, frequency change rate and feedback information.

[0025] Preferably, the information of the wind farm includes at least one or more of the following: inertia control signal, primary frequency modulation signal, and preset frequency and voltage of the wind farm.

[0026] Preferably, the step of simulating frequency regulation commands and three-phase instantaneous voltage waveforms based on the collected wind farm information includes:

[0027] Based on the collected inertia control signal and primary frequency modulation signal of the wind farm, a frequency adjustment command is formed;

[0028] Based on the preset frequency and voltage of the wind farm, the three-phase instantaneous voltage waveform is output.

[0029] Preferably, the frequency adjustment command includes a frequency adjustment command enable timing sequence, which includes at least one or more of the following:

[0030] The adjustment command first timing sequence, the adjustment command second timing sequence, and the adjustment command third timing sequence; among which,

[0031] The first timing sequence of the adjustment command is to enable the inertia control signal and lock out the primary frequency modulation signal;

[0032] The second timing sequence of the adjustment command is the inertia control signal lockout and the primary frequency modulation signal enable;

[0033] The third timing sequence of the adjustment command is to enable the inertia control signal and the primary frequency modulation signal.

[0034] Preferably, the grid connection point data includes at least one or more of the following:

[0035] Three-phase voltage and three-phase current at the grid connection point of wind farms / collector lines, three-phase voltage and three-phase current at the grid connection point of energy storage equipment, and three-phase voltage and three-phase current at the grid connection point of photovoltaic inverters.

[0036] Preferably, the step of calculating the frequency adjustment response time based on the frequency deviation, frequency change rate, and feedback information includes:

[0037] The frequency adjustment response time includes at least the primary frequency modulation response lag time, the primary frequency modulation rise time and the inertia response rise time, and the primary frequency modulation adjustment time.

[0038] When the frequency deviation / frequency change rate exceeds the preset dead zone, active power regulation is performed, and frequency modulation power is output.

[0039] When the frequency modulation power reaches the preset first frequency modulation power, active power regulation is performed, and the frequency modulation response lag time is calculated.

[0040] When the frequency modulation power reaches the preset second frequency modulation power, active power regulation is performed, and the rise time of the first frequency modulation and the rise time of the inertial response are calculated.

[0041] When the difference between the frequency modulation power and the preset target power is less than or equal to the preset rated capacity, the frequency modulation adjustment time is calculated once.

[0042] The present invention also proposes a computer device, comprising: one or more processors; and a memory for storing one or more programs;

[0043] When the one or more programs are executed by the one or more processors, one of the above-described methods for detecting the frequency regulation response time of a wind farm is implemented.

[0044] The present invention also proposes a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed, it implements one of the above-described methods for detecting the frequency regulation response time of a wind farm.

[0045] Compared with the closest existing technology, the present invention has the following beneficial effects:

[0046] This invention provides a device, method, equipment, and medium for detecting the frequency regulation response time of a wind farm, including a simulated grid frequency module, a multi-output interface and communication module, and a measurement and calculation module. The simulated grid frequency module, multi-output interface and communication module, and measurement and calculation module are interconnected. The simulated grid frequency module is used to simulate frequency regulation commands and three-phase instantaneous voltage waveforms based on collected wind farm information. The multi-output interface and communication module is used to perform frequency testing based on the frequency regulation commands and three-phase instantaneous voltage waveforms, obtain feedback information, and transmit it to the measurement and calculation module in the detection device. The measurement and calculation module is used to calculate the wind farm frequency deviation and frequency change rate based on the feedback information and collected grid connection point data, and to perform power regulation based on the frequency deviation and frequency change rate, thereby calculating the frequency regulation response time. This invention collects wind farm information and calculates wind farm frequency deviation and frequency change rate through a simulated power grid frequency module and a measurement and calculation module. Based on the frequency deviation and frequency change rate, the measurement and calculation module performs power adjustment through a multi-output interface and a communication module, and calculates the frequency adjustment response time. This invention can accurately calculate the response time of wind farm inertia control and the response time of primary frequency regulation, has a wide range of applications, and can improve the authenticity and accuracy of the test results of wind farm frequency regulation response time. Attached Figure Description

[0047] Figure 1A schematic diagram of the structure of a wind farm frequency regulation response time detection system provided by the present invention;

[0048] Figure 2 A schematic flowchart of a method for detecting the frequency regulation response time of a wind farm provided by the present invention;

[0049] Figure 3 A schematic diagram of the frequency regulation command enable timing in a wind farm frequency regulation response time detection method provided by the present invention;

[0050] Figure 4 A schematic diagram of the electrical structure of a wind farm in a method for detecting the frequency regulation response time of a wind farm provided by the present invention;

[0051] Figure 5 This is a schematic diagram of the wind farm frequency regulation response time calculation process in the wind farm frequency regulation response time detection method provided by the present invention. Detailed Implementation

[0052] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0053] Example 1:

[0054] This invention provides a device for detecting the frequency regulation response time of a wind farm, such as... Figure 1 As shown, it includes:

[0055] The system includes a simulated power grid frequency module, a multi-output interface and communication module, and a measurement and calculation module; among which,

[0056] The analog power grid frequency module, the multi-output interface and communication module and the measurement and calculation module are interconnected;

[0057] The simulated power grid frequency module is used to simulate frequency regulation commands and three-phase instantaneous voltage waveforms based on the collected information from the wind farm.

[0058] The multi-output interface and communication module are used for real-time bidirectional communication with an external controller, sending the frequency adjustment command and three-phase instantaneous voltage waveform to the external controller, receiving feedback information from the external controller, and transmitting it to the measurement and calculation module in the detection device for synchronous data processing.

[0059] The measurement and calculation module is used to calculate the wind farm frequency deviation and frequency change rate based on the feedback information and the collected grid connection point data, and to calculate the frequency regulation response time based on the frequency deviation, frequency change rate and feedback information.

[0060] Specifically, the analog power grid frequency module is used for:

[0061] The system generates voltage and frequency as needed, outputs three-phase instantaneous voltage waveforms and control signals, and outputs preset wind farm inertia signals, primary frequency modulation signals and control signals to form frequency regulation commands.

[0062] Specifically, the feedback information includes at least: wind farm frequency regulation power, energy storage frequency regulation power, and feedback signals. Specifically, the feedback information also includes frequency control signals.

[0063] Specifically, the multi-output interface and communication module are connected to an external controller.

[0064] Specifically, the external controller includes multiple wind power frequency regulation controllers and energy storage controllers;

[0065] The wind power frequency control controller is used to preset the wind farm frequency control power according to the rated capacity of the external wind turbine.

[0066] The energy storage controller is used to preset the energy storage frequency regulation power according to the rated capacity of the external energy storage device.

[0067] Specifically, the external controller also includes a photovoltaic inverter controller.

[0068] Specifically, the frequency regulation command in the simulated power grid frequency module includes a frequency regulation command enable timing sequence, which includes at least one or more of the following:

[0069] The adjustment command first timing sequence, the adjustment command second timing sequence, and the adjustment command third timing sequence; among which,

[0070] The first timing sequence of the adjustment command is to enable the inertia control signal and lock out the primary frequency modulation signal;

[0071] The second timing sequence of the adjustment command is the inertia control signal lockout and the primary frequency modulation signal enable;

[0072] The third timing sequence of the adjustment command is to enable the inertia control signal and the primary frequency modulation signal.

[0073] Specifically, the grid connection point data in the measurement and calculation module includes at least one or more of the following:

[0074] Three-phase voltage and three-phase current at the grid connection point of wind farms / collector lines, three-phase voltage and three-phase current at the grid connection point of energy storage equipment, and three-phase voltage and three-phase current at the grid connection point of photovoltaic inverters;

[0075] This device can also be used in wind farms where photovoltaic inverters are installed, integrating the photovoltaic inverters for control. After adding photovoltaics, the wind farm can be called a wind-solar farm. At the same time, the photovoltaic inverter controller in the external controller plays a role, and the feedback information also includes the frequency modulation power of the photovoltaic modules.

[0076] This device requires no additional hardware; by simply optimizing the control logic of the wind farm frequency regulation controller / energy storage controller, accurate testing of wind farm frequency regulation response time can be achieved, facilitating on-site implementation. The frequency-adjustable three-phase voltage (simulated grid frequency change rate and frequency deviation value) can be directly output to the frequency regulation controller via analog channels or via various mainstream communication protocols (104, Modbus TCP, etc.). It also has good scalability and can be used in new energy power plants where wind and solar power are jointly connected to conduct frequency regulation response time testing.

[0077] Example 2:

[0078] This invention provides a method for detecting the frequency regulation response time of a wind farm, such as... Figure 2 As shown, it includes:

[0079] Step 1: Based on the collected information from the wind farm, the simulated grid frequency module in the detection device simulates the frequency regulation command and the three-phase instantaneous voltage waveform;

[0080] Step 2: Perform frequency testing based on the frequency adjustment command and three-phase instantaneous voltage waveform through the multi-output interface and communication module in the detection device, obtain feedback information, and transmit it to the measurement and calculation module in the detection device;

[0081] Step 3: The measurement and calculation module calculates the wind farm frequency deviation and frequency change rate based on the feedback information and the collected grid connection point data, and calculates the frequency regulation response time based on the frequency deviation, frequency change rate and feedback information.

[0082] Specifically, step one includes:

[0083] The outputs of the simulated power grid frequency module—three-phase voltage with frequency variation, inertia control on / off, and primary frequency regulation on / off—are sent to the wind farm frequency regulation controller via a multi-output interface and communication module (if multiple frequency regulation controllers exist, they are output synchronously in parallel using a synchronization port); and the outputs of the simulated power grid frequency module (three-phase voltage with frequency variation, inertia control on / off, and primary frequency regulation on / off) are synchronously sent to the measurement and calculation module.

[0084] Specifically, step two includes:

[0085] Check whether the active power regulation limit value of the frequency modulation controller is set to 10% Pn or within the safety limit; according to Figure 3 Given the frequency regulation control enable signal, modify / add the control logic of the frequency regulation controller (including wind power frequency regulation controller, photovoltaic frequency regulation controller, and energy storage frequency regulation controller);

[0086] Specifically, step three includes:

[0087] Connect the three-phase voltage (PT) and three-phase current (CT) at the wind farm's grid connection point to the measurement and calculation module; when the wind farm contains multiple frequency control controllers (including wind power, energy storage, and photovoltaic inverters), the calculation should be based on the following... Figure 4 The configuration shown connects the three-phase voltage and three-phase current of the relevant test points of the collector line to the measurement and calculation module together; when the wind farm has only one frequency controller, the three-phase voltage and three-phase current of the wind farm grid connection point are connected to the measurement and calculation module together.

[0088] Referring to the operating conditions given in Table 1 below, set the required frequency deviation and frequency change rate using the simulated power grid frequency module, and then proceed as follows: Figure 3 The timing settings shown are for the inertia control and primary frequency modulation start / lock signals; the operating conditions in Table 1 are recommended operating conditions, and the specific instructions can be adjusted according to actual test requirements.

[0089] Table 1. Test conditions for frequency variation and frequency deviation

[0090]

[0091]

[0092] Based on the operating conditions in Table 1 or the operating conditions required by local dispatch, conduct wind farm inertia control and primary frequency regulation response time tests one by one.

[0093] Based on the signals obtained from the measurement and calculation module, the inertial response rise time (T1+T2), primary frequency regulation response lag time (T1), primary frequency regulation rise time (T1+T2), and primary frequency regulation settling time (T1+T2+T3) are calculated respectively; the wind farm frequency regulation response time is as follows: Figure 5 As shown; where Pn is the rated power of the wind farm;

[0094] Each measurement condition was repeated twice; the larger value between the two test results was taken as the final result, and the wind farm inertia response rise time, primary frequency regulation response lag time, primary frequency regulation rise time and primary frequency regulation adjustment time were given.

[0095] Specifically, the grid connection point data in step three includes at least one or more of the following: the three-phase voltage and three-phase current of the wind farm grid connection point, or the three-phase voltage and three-phase current of the collector line grid connection point, the three-phase voltage and three-phase current of the energy storage device grid connection point, and the three-phase voltage and three-phase current of the photovoltaic inverter grid connection point. The collector lines corresponding to the collector line grid connection points are equipped with wind turbines from different manufacturers, and wind turbines from different manufacturers require different controllers for control; the wind farm includes at least wind turbines, photovoltaic power generation units, and energy storage devices.

[0096] This method employs a synchronous command timing output approach, sequentially activating wind farm inertia control, primary frequency regulation, and inertia control and primary frequency regulation. It can accurately obtain the response time of wind farm inertia control and primary frequency regulation separately, and can also detect the response time of joint inertia and primary frequency regulation control. It has multiple synchronous command output channels and multiple synchronous data acquisition channels, and can be used to detect the frequency regulation response time of wind farms containing multiple main transformers / multiple frequency regulation controllers / energy storage device controllers, resulting in more realistic test results for wind farm frequency regulation response time.

[0097] Example 3:

[0098] Based on the same inventive concept, this invention also provides a computer device, which includes a processor and a memory. The memory stores a computer program, which includes program instructions. The processor executes the program instructions stored in the computer storage medium. The processor may 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. It is the computing and control core of the terminal, suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions in the computer storage medium to implement the corresponding method flow or corresponding function, thereby realizing the steps of the wind farm frequency regulation response time detection method in the above embodiments.

[0099] Example 4:

[0100] Based on the same inventive concept, this invention also provides a storage medium, specifically a computer-readable storage medium (Memory), which is a memory device in a computer device used to store programs and data. It is understood that the computer-readable storage medium here can include both the built-in storage medium in the computer device and extended storage media supported by the computer device. The computer-readable storage medium provides storage space that stores the terminal's operating system. Furthermore, this storage space also stores one or more instructions suitable for loading and execution by a processor. These instructions can be one or more computer programs (including program code). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk storage device. The processor can load and execute one or more instructions stored in the computer-readable storage medium to implement the steps of the wind farm frequency regulation response time detection method in the above embodiments.

[0101] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0102] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0103] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0104] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading the present invention, they can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the application, but these changes, modifications or equivalent substitutions are all within the scope of protection of the claims pending approval.

Claims

1. A device for detecting the frequency regulation response time of a wind farm, characterized in that, include: Simulated power grid frequency module, multi-output interface and communication module, and measurement and calculation module; The analog power grid frequency module, the multi-output interface and communication module and the measurement and calculation module are interconnected; The simulated power grid frequency module is used to simulate frequency regulation commands and three-phase instantaneous voltage waveforms based on the collected information from the wind farm. The multi-output interface and communication module are used for real-time bidirectional communication with an external controller, sending the frequency adjustment command and three-phase instantaneous voltage waveform to the external controller, receiving feedback information from the external controller, and transmitting it to the measurement and calculation module in the detection device for synchronous data processing. The measurement and calculation module is used to calculate the wind farm frequency deviation and frequency change rate based on the feedback information and the collected grid connection point data, and to calculate the frequency regulation response time based on the frequency deviation, frequency change rate and feedback information.

2. The apparatus as claimed in claim 1, characterized in that, The analog power grid frequency module is specifically used for: Based on the collected inertia control signal and primary frequency modulation signal of the wind farm, a frequency adjustment command is formed; Based on the preset frequency and voltage of the wind farm, the three-phase instantaneous voltage waveform is output.

3. The apparatus as described in claim 1, characterized in that, The feedback information includes at least: wind farm frequency regulation power, energy storage frequency regulation power, and feedback signal.

4. The apparatus as claimed in claim 1, characterized in that, The external controller includes multiple wind power frequency regulation controllers and energy storage controllers; The wind power frequency control controller is used to preset the first frequency regulation power according to the rated capacity of the external wind turbine; The energy storage controller is used to preset the second frequency modulation power according to the rated capacity of the external energy storage device.

5. The apparatus as claimed in claim 1, characterized in that, The frequency adjustment command includes a frequency adjustment command enable timing sequence, which includes at least one or more of the following: The adjustment command first timing sequence, the adjustment command second timing sequence, and the adjustment command third timing sequence; among which, The first timing sequence of the adjustment command is to enable the inertia control signal and lock out the primary frequency modulation signal; The second timing sequence of the adjustment command is the inertia control signal lockout and the primary frequency modulation signal enable; The third timing sequence of the adjustment command is to enable the inertia control signal and the primary frequency modulation signal.

6. The apparatus as claimed in claim 1, characterized in that, The grid connection point data includes at least one or more of the following: Three-phase voltage and three-phase current at the grid connection point of wind farms / collector lines, three-phase voltage and three-phase current at the grid connection point of energy storage equipment, and three-phase voltage and three-phase current at the grid connection point of photovoltaic inverters.

7. A method for detecting the frequency regulation response time of a wind farm, characterized in that, include: The simulated power grid frequency module in the detection device simulates frequency regulation commands and three-phase instantaneous voltage waveforms based on the collected information from the wind farm. The frequency is tested according to the frequency adjustment command and the three-phase instantaneous voltage waveform through the multi-output interface and communication module in the detection device, feedback information is obtained and transmitted to the measurement and calculation module in the detection device. The measurement and calculation module calculates the wind farm frequency deviation and frequency change rate based on the feedback information and the collected grid connection point data, and calculates the frequency regulation response time based on the frequency deviation, frequency change rate and feedback information.

8. The method as described in claim 7, characterized in that, The information of the wind farm includes at least one or more of the following: inertia control signal, primary frequency modulation signal, and preset frequency and voltage of the wind farm.

9. The method as described in claim 8, characterized in that, The process of simulating frequency regulation commands and three-phase instantaneous voltage waveforms based on the collected wind farm information includes: Based on the collected inertia control signal and primary frequency modulation signal of the wind farm, a frequency adjustment command is formed; Based on the preset frequency and voltage of the wind farm, the three-phase instantaneous voltage waveform is output.

10. The method as described in claim 7, characterized in that, The frequency adjustment command includes a frequency adjustment command enable timing sequence, which includes at least one or more of the following: The adjustment command first timing sequence, the adjustment command second timing sequence, and the adjustment command third timing sequence; among which, The first timing sequence of the adjustment command is to enable the inertia control signal and lock out the primary frequency modulation signal; The second timing sequence of the adjustment command is the inertia control signal lockout and the primary frequency modulation signal enable; The third timing sequence of the adjustment command is to enable the inertia control signal and the primary frequency modulation signal.

11. The method as described in claim 7, characterized in that, The grid connection point data includes at least one or more of the following: Three-phase voltage and three-phase current at the grid connection point of wind farms / collector lines, three-phase voltage and three-phase current at the grid connection point of energy storage equipment, and three-phase voltage and three-phase current at the grid connection point of photovoltaic inverters.

12. The method as described in claim 10, characterized in that, The step of calculating the frequency adjustment response time based on the frequency deviation, frequency change rate, and feedback information includes: The frequency adjustment response time includes at least the primary frequency modulation response lag time, the primary frequency modulation rise time and the inertia response rise time, and the primary frequency modulation adjustment time. When the frequency deviation / frequency change rate exceeds the preset dead zone, active power regulation is performed, and frequency modulation power is output. When the frequency modulation power reaches the preset first frequency modulation power, active power regulation is performed, and the frequency modulation response lag time is calculated. When the frequency modulation power reaches the preset second frequency modulation power, active power regulation is performed, and the rise time of the first frequency modulation and the rise time of the inertial response are calculated. When the difference between the frequency modulation power and the preset target power is less than or equal to the preset rated capacity, the frequency modulation adjustment time is calculated once.

13. A computer device, characterized in that, include: One or more processors; Memory, used to store one or more programs; When the one or more programs are executed by the one or more processors, a method for detecting the frequency regulation response time of a wind farm as described in any one of claims 7 to 12 is implemented.

14. A computer-readable storage medium, characterized in that, It contains a computer program, which, when executed, implements a method for detecting the frequency regulation response time of a wind farm as described in any one of claims 7 to 12.

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