High-frequency cooperative control method and system for wind power equipment
By using multi-source monitoring and data preprocessing, the frequency change rate and frequency regulation output are calculated, frequency regulation power commands are generated, and time-series control is smoothed, which solves the problem of lack of coordinated regulation between wind power and energy storage equipment and achieves high-quality frequency stability control of the power grid.
Patent Information
- Application Number
- CN202511782724.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-30
- Publication Date
- 2026-02-27
AI Technical Summary
The lack of a unified coordination and regulation mechanism between wind power and energy storage equipment in existing technologies leads to increased grid frequency deviation, making it difficult to form stable and continuous frequency regulation support and failing to meet the requirements of high-quality frequency stability control.
By conducting multi-source monitoring and data preprocessing of the power grid, wind power, and energy storage, multi-source monitoring data is obtained, frequency regulation processing and analysis are performed, frequency change rate, wind power frequency regulation output and energy storage frequency regulation output are calculated, frequency regulation power command is generated, and time sequence control is smoothed to achieve coordinated control of wind power and energy storage.
It enables wind power and energy storage to coordinate frequency regulation of the power grid, forming a stable and continuous frequency regulation support, and meeting the power grid's demand for high-quality frequency stability control.
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Figure CN121584777A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of wind power, in particular to a high-frequency cooperative control method and system of wind power equipment. BACKGROUND
[0002] Wind power is a form of energy that uses natural wind energy to convert it into usable electrical energy through wind power generation equipment. Its core is to drive the wind wheel to rotate through wind power, and then transmit mechanical energy to the generator through the main shaft to realize the conversion of mechanical energy to electrical energy. As a typical renewable energy, wind power has significant advantages such as abundant resources, wide distribution, no fuel consumption during operation, and no greenhouse gas emissions, and plays an important role in the transformation of global energy structure.
[0003] With the development of modern power electronics technology and intelligent control technology, wind power has gradually realized large-scale grid connection and cooperative scheduling, which is the key driving force for green and low-carbon development, and an important part of promoting energy structure optimization and ensuring energy security.
[0004] At present, with the increasing proportion of wind power in the power system, large-scale wind turbine generators connected to the grid make the source-side output of the power grid more volatile and unpredictable. The instantaneous power imbalance on the source and load sides of the power grid is prone to occur, which intensifies the frequency deviation and continuously impacts the stable operation of the power grid. However, in the prior art, wind power and energy storage are usually controlled independently, and there is a lack of unified cooperative regulation mechanism, which not only makes it difficult to form stable and continuous frequency modulation support, but also may intensify the load of the equipment and reduce the overall frequency modulation effect, and cannot meet the demand of the power grid for high-quality frequency stability control. SUMMARY
[0005] The purpose of the embodiment of the present application is to provide a high-frequency cooperative control method and system of wind power equipment, which aims to solve the technical problems existing in the prior art mentioned in the background.
[0006] The embodiment of the present application is implemented as follows: A high-frequency cooperative control method of wind power equipment, the method specifically comprises the following steps: Performing multi-source monitoring and data preprocessing of the power grid, wind power and energy storage to obtain multi-source monitoring data; According to the multi-source monitoring data, performing frequency modulation processing analysis, calculating the frequency change rate, wind power frequency modulation output and energy storage frequency modulation output; According to the wind power frequency modulation output and the energy storage frequency modulation output, generating corresponding frequency modulation power instructions, and performing smoothing processing of time sequence control, issuing instructions and cooperative control; Performing real-time tracking of the frequency modulation effect of wind power and energy storage, and performing deviation diagnosis and real-time correction processing of the frequency modulation effect.
[0007] As a further limitation of the technical solution of this invention, the step of performing multi-source monitoring and data preprocessing of power grid, wind power and energy storage to obtain multi-source monitoring data specifically includes the following steps: To conduct power grid status monitoring and acquire power grid monitoring data; Conduct wind power condition monitoring and acquire wind power monitoring data; Perform energy storage status monitoring and obtain energy storage monitoring data; The power grid monitoring data, the wind power monitoring data, and the energy storage monitoring data are synchronized in time to obtain synchronized monitoring data. The synchronous monitoring data is subjected to anomaly removal and standardization processing to obtain multi-source monitoring data.
[0008] As a further limitation of the technical solution of this invention, the step of performing frequency modulation processing and analysis based on the multi-source monitoring data to calculate the frequency change rate, wind power frequency modulation output, and energy storage frequency modulation output specifically includes the following steps: Based on the multi-source monitoring data, frequency modulation status analysis is performed, and the frequency change rate is calculated; Based on the frequency change rate, wind power frequency regulation analysis is performed on the multi-source monitoring data to calculate the wind power frequency regulation output; Based on the frequency change rate, energy storage frequency regulation analysis is performed on the multi-source monitoring data to calculate the energy storage frequency regulation output.
[0009] As a further limitation of the technical solution of this embodiment of the invention, the formula for calculating the frequency change rate is: ; in, The rate of change of frequency, This represents the change in wind power output. This represents the change in thermal power output. This represents the change in energy storage power. To meet the disturbance power, The equivalent inertial time constant of the power grid, For wind power penetration rate, Let be the equivalent inertial time constant of wind power. This is the virtual inertia coefficient for energy storage.
[0010] As a further limitation of the technical solution of this embodiment of the invention, the calculation formula for the wind power frequency regulation output is as follows: ; in, To contribute to wind power frequency regulation, This represents the real-time active power of wind power. Rated power of electricity The change in frequency This refers to the rated power of the wind power. This represents the active power primary frequency regulation coefficient for wind power. The formula for calculating the energy storage frequency regulation output is: ; in, To contribute to energy storage frequency regulation, This is the preset equivalent transfer function for energy storage. This is the droop control coefficient for energy storage.
[0011] As a further limitation of the technical solution of this embodiment of the invention, the step of generating corresponding frequency regulation power commands according to the frequency regulation output of wind power and the frequency regulation output of energy storage, and performing smoothing processing of timing control, and issuing commands and coordinating control specifically includes the following steps: Based on the wind power frequency regulation output and the energy storage frequency regulation output, generate corresponding wind power frequency regulation commands and energy storage frequency regulation commands; The wind power frequency regulation command is smoothed by timing control to generate a smooth wind power frequency regulation command; The energy storage frequency modulation command is smoothed by timing control to generate a smooth energy storage frequency modulation command. The wind power smooth frequency regulation command and the energy storage smooth frequency regulation command are issued and coordinated for control.
[0012] As a further limitation of the technical solution of this invention, the real-time tracking of the frequency regulation effect of wind power and energy storage, and the deviation diagnosis and real-time correction of the frequency regulation effect specifically include the following steps: Real-time tracking of the frequency regulation effect of wind power and energy storage, and acquisition of frequency regulation tracking data; The frequency modulation tracking data is used to diagnose the frequency modulation effect deviation and identify frequency modulation deviation situations. Based on the frequency modulation deviation, targeted real-time correction processing is performed.
[0013] A high-frequency coordinated control system for wind power equipment, the system comprising a multi-source monitoring and processing module, a frequency modulation output calculation module, a frequency modulation coordinated control module, and a frequency modulation tracking and diagnostic module, wherein: The multi-source monitoring and processing module is used for multi-source monitoring and data preprocessing of power grid, wind power and energy storage to acquire multi-source monitoring data. The frequency regulation output calculation module is used to perform frequency regulation processing and analysis based on the multi-source monitoring data, and to calculate the frequency change rate, wind power frequency regulation output, and energy storage frequency regulation output. The frequency regulation coordinated control module is used to generate corresponding frequency regulation power commands according to the frequency regulation output of wind power and the frequency regulation output of energy storage, and to perform smoothing processing of timing control, and to issue commands and coordinate control. The frequency regulation tracking and diagnostic module is used to track the frequency regulation effect of wind power and energy storage in real time, and to diagnose and correct deviations in the frequency regulation effect in real time.
[0014] As a further limitation of the technical solution of this embodiment of the invention, the multi-source monitoring and processing module specifically includes: The power grid condition monitoring unit is used to monitor the power grid condition and acquire power grid monitoring data. The wind power condition monitoring unit is used to monitor the wind power condition and acquire wind power monitoring data. The energy storage status monitoring unit is used to monitor the energy storage status and acquire energy storage monitoring data. The data time synchronization unit is used to synchronize the power grid monitoring data, the wind power monitoring data and the energy storage monitoring data in time, and to obtain synchronized monitoring data; The standardization processing unit is used to perform anomaly removal and standardization processing on the synchronous monitoring data to obtain multi-source monitoring data.
[0015] As a further limitation of the technical solution of this embodiment of the invention, the frequency modulation coordinated control module specifically includes: The instruction generation unit is used to generate corresponding wind power frequency regulation instructions and energy storage frequency regulation instructions according to the wind power frequency regulation output and the energy storage frequency regulation output; The wind power frequency regulation smoothing processing unit is used to perform timing control smoothing processing on the wind power frequency regulation command to generate a wind power smooth frequency regulation command. The energy storage frequency modulation smoothing processing unit is used to perform timing control smoothing processing on the energy storage frequency modulation command to generate an energy storage smooth frequency modulation command. The collaborative control unit is used to issue and coordinate the wind power smooth frequency regulation command and the energy storage smooth frequency regulation command.
[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention acquires multi-source monitoring data from the power grid, wind power, and energy storage; performs frequency regulation processing and analysis to calculate the frequency change rate, wind power frequency regulation output, and energy storage frequency regulation output; generates corresponding frequency regulation power commands based on the wind power and energy storage frequency regulation outputs, performs timing control smoothing, and then issues commands and performs coordinated control; and tracks the frequency regulation effect of wind power and energy storage in real time, and performs deviation diagnosis and real-time correction of the frequency regulation effect. Based on multi-source monitoring data, it can calculate the frequency change rate, wind power frequency regulation output, and energy storage frequency regulation output, perform timing control smoothing, and then issue commands and perform coordinated control. This enables coordinated frequency regulation of the power grid by wind power and energy storage, forming stable and continuous frequency regulation support, thereby meeting the power grid's requirement for high-quality frequency stability control. Attached Figure Description
[0017] Figure 1 A flowchart of a high-frequency collaborative control method for wind power equipment provided in an embodiment of the present invention is shown; Figure 2 The application architecture diagram of the high-frequency collaborative control system for wind power equipment provided in the embodiment of the present invention is shown. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0019] Understandably, as wind power accounts for an increasing proportion of the power system, the centralized grid connection of large-scale wind turbines has led to stronger volatility and unpredictability in the power grid's source-side output. Instantaneous power imbalances are prone to occur on both the source and load sides of the power grid, resulting in aggravated frequency deviations and a continuous impact on the stable operation of the power grid. However, in existing technologies, wind power and energy storage mostly adopt their own independent frequency regulation control methods, lacking a unified coordinated regulation mechanism. This not only makes it difficult to form stable and continuous frequency regulation support, but may also aggravate equipment load, reduce the overall frequency regulation effect, and fail to meet the power grid's demand for high-quality frequency stability control.
[0020] To address the aforementioned issues, this invention discloses a high-frequency coordinated control method and system for wind power equipment. This method involves multi-source monitoring and data preprocessing of the power grid, wind power, and energy storage to acquire multi-source monitoring data. Based on this data, frequency regulation processing and analysis are performed to calculate the frequency change rate, wind power frequency regulation output, and energy storage frequency regulation output. Corresponding frequency regulation power commands are generated according to the wind power and energy storage frequency regulation outputs, and timing control smoothing is applied before command issuance and coordinated control. Real-time tracking of the frequency regulation effects of wind power and energy storage is conducted, along with deviation diagnosis and real-time correction. This system, based on multi-source monitoring data, calculates the frequency change rate, wind power frequency regulation output, and energy storage frequency regulation output, performs timing control smoothing, and then issues commands and performs coordinated control. This enables coordinated frequency regulation of the power grid by wind power and energy storage, forming stable and continuous frequency regulation support, thereby meeting the power grid's requirement for high-quality frequency stability control.
[0021] Specifically, Figure 1 A flowchart of a high-frequency coordinated control method for wind power equipment provided in an embodiment of the present invention is shown.
[0022] In a preferred embodiment of the present invention, a high-frequency coordinated control method for wind power equipment specifically includes the following steps: Step S101: Perform multi-source monitoring and data preprocessing of power grid, wind power and energy storage to obtain multi-source monitoring data.
[0023] In this embodiment of the invention, grid status monitoring, wind power status monitoring, and energy storage status monitoring are performed to obtain grid monitoring data, wind power monitoring data, and energy storage monitoring data. Then, the grid monitoring data, wind power monitoring data, and energy storage monitoring data are processed to synchronize the data in time to generate synchronized monitoring data. After that, anomaly removal, filtering, and compensation are performed on the synchronized monitoring data, and then standardized processing is performed to obtain multi-source monitoring data.
[0024] Specifically, in another preferred embodiment provided by the present invention, the step of performing multi-source monitoring and data preprocessing of power grid, wind power, and energy storage to obtain multi-source monitoring data specifically includes the following steps: To conduct power grid status monitoring and acquire power grid monitoring data; Conduct wind power condition monitoring and acquire wind power monitoring data; Perform energy storage status monitoring and obtain energy storage monitoring data; The power grid monitoring data, the wind power monitoring data, and the energy storage monitoring data are synchronized in time to obtain synchronized monitoring data. The synchronous monitoring data is subjected to anomaly removal and standardization processing to obtain multi-source monitoring data.
[0025] Furthermore, the high-frequency coordinated control method for the wind power equipment also includes the following steps: Step S102: Based on the multi-source monitoring data, perform frequency modulation processing analysis to calculate the frequency change rate, wind power frequency modulation output, and energy storage frequency modulation output.
[0026] In this embodiment of the invention, based on multi-source monitoring data, the frequency regulation status of the power grid is analyzed, and the frequency change rate is calculated. Based on the frequency change rate, wind power frequency regulation analysis is performed on the multi-source monitoring data to calculate the wind power frequency regulation output. Furthermore, energy storage frequency regulation analysis is performed on the multi-source monitoring data to calculate the energy storage frequency regulation output. Specifically, the formula for calculating the frequency change rate is: ; in, The rate of change of frequency, This represents the change in wind power output. This represents the change in thermal power output. This represents the change in energy storage power. To meet the disturbance power, The equivalent inertial time constant of the power grid, For wind power penetration rate, Let be the equivalent inertial time constant of wind power. The virtual inertia coefficient for energy storage; The formula for calculating the frequency regulation output of wind power is: ; in, To contribute to wind power frequency regulation, This represents the real-time active power of wind power. Rated power of electricity The change in frequency This refers to the rated power of the wind power. This represents the active power primary frequency regulation coefficient for wind power. The formula for calculating the frequency regulation output of energy storage is: ; in, To contribute to energy storage frequency regulation, This is the preset equivalent transfer function for energy storage. This is the droop control coefficient for energy storage.
[0027] Specifically, in another preferred embodiment provided by the present invention, the step of performing frequency modulation processing analysis based on the multi-source monitoring data to calculate the frequency change rate, wind power frequency modulation output, and energy storage frequency modulation output specifically includes the following steps: Based on the multi-source monitoring data, frequency modulation status analysis is performed, and the frequency change rate is calculated; Based on the frequency change rate, wind power frequency regulation analysis is performed on the multi-source monitoring data to calculate the wind power frequency regulation output; Based on the frequency change rate, energy storage frequency regulation analysis is performed on the multi-source monitoring data to calculate the energy storage frequency regulation output.
[0028] Furthermore, the high-frequency coordinated control method for the wind power equipment also includes the following steps: Step S103: Generate corresponding frequency regulation power commands according to the wind power frequency regulation output and the energy storage frequency regulation output, and perform smoothing processing of timing control, and issue commands and coordinate control.
[0029] In this embodiment of the invention, wind power frequency regulation commands and energy storage frequency regulation commands are generated according to the wind power frequency regulation output and energy storage frequency regulation output. Then, the wind power frequency regulation commands are smoothed by timing control to generate smooth wind power frequency regulation commands, and the energy storage frequency regulation commands are smoothed by timing control to generate smooth energy storage frequency regulation commands. Then, the wind power smooth frequency regulation commands and energy storage smooth frequency regulation commands are issued and coordinated to achieve coordinated frequency regulation of the power grid by wind power and energy storage.
[0030] It is understandable that smoothing the timing control of wind power frequency regulation commands can be done by smoothing the wind power pitch angle to avoid stress shocks; similarly, smoothing the timing control of energy storage frequency regulation commands can be done by smoothing the output curve of the energy storage PCS.
[0031] Specifically, in another preferred embodiment provided by the present invention, the step of generating corresponding frequency regulation power commands according to the wind power frequency regulation output and the energy storage frequency regulation output, and performing smoothing processing of timing control, and issuing commands and coordinating control specifically includes the following steps: Based on the wind power frequency regulation output and the energy storage frequency regulation output, generate corresponding wind power frequency regulation commands and energy storage frequency regulation commands; The wind power frequency regulation command is smoothed by timing control to generate a smooth wind power frequency regulation command; The energy storage frequency modulation command is smoothed by timing control to generate a smooth energy storage frequency modulation command. The wind power smooth frequency regulation command and the energy storage smooth frequency regulation command are issued and coordinated for control.
[0032] Furthermore, the high-frequency coordinated control method for the wind power equipment also includes the following steps: Step S104: Real-time tracking of the frequency regulation effect of wind power and energy storage, and deviation diagnosis and real-time correction of the frequency regulation effect.
[0033] In this embodiment of the invention, frequency regulation tracking data is obtained by real-time tracking of the frequency regulation effect of wind power and energy storage. Then, the frequency regulation tracking data is used to diagnose the deviation of the frequency regulation effect, identify the frequency regulation deviation situation, and then perform targeted real-time correction processing according to the frequency regulation deviation situation. For example, when the frequency regulation deviation situation is that the wind power output does not reach the target, the energy storage output is automatically increased; when the frequency regulation deviation situation is that the energy storage power overshoots, automatic dynamic limiting processing is performed.
[0034] Specifically, in another preferred embodiment provided by the present invention, the real-time tracking of the frequency regulation effect of wind power and energy storage, and the deviation diagnosis and real-time correction of the frequency regulation effect specifically include the following steps: Real-time tracking of the frequency regulation effect of wind power and energy storage, and acquisition of frequency regulation tracking data; The frequency modulation tracking data is used to diagnose the frequency modulation effect deviation and identify frequency modulation deviation situations. Based on the frequency modulation deviation, targeted real-time correction processing is performed.
[0035] Furthermore, Figure 2 The application architecture diagram of the high-frequency collaborative control system for wind power equipment provided in the embodiment of the present invention is shown.
[0036] Specifically, in another preferred embodiment provided by the present invention, a high-frequency collaborative control system for wind power equipment includes: The multi-source monitoring and processing module 101 is used for multi-source monitoring and data preprocessing of power grid, wind power and energy storage to obtain multi-source monitoring data.
[0037] In this embodiment of the invention, the multi-source monitoring and processing module 101 acquires grid monitoring data, wind power monitoring data, and energy storage monitoring data by performing grid status monitoring, wind power monitoring data, and energy storage status monitoring. Then, it performs time synchronization processing on the grid monitoring data, wind power monitoring data, and energy storage monitoring data to generate synchronized monitoring data. After that, it performs anomaly removal, filtering, and compensation on the synchronized monitoring data, and then performs standardized processing in a unified format to obtain multi-source monitoring data.
[0038] Specifically, in another preferred embodiment provided by the present invention, the multi-source monitoring and processing module 101 specifically includes: The power grid condition monitoring unit is used to monitor the power grid condition and acquire power grid monitoring data. The wind power condition monitoring unit is used to monitor the wind power condition and acquire wind power monitoring data. The energy storage status monitoring unit is used to monitor the energy storage status and acquire energy storage monitoring data. The data time synchronization unit is used to synchronize the power grid monitoring data, the wind power monitoring data and the energy storage monitoring data in time, and to obtain synchronized monitoring data; The standardization processing unit is used to perform anomaly removal and standardization processing on the synchronous monitoring data to obtain multi-source monitoring data.
[0039] Furthermore, the high-frequency collaborative control system for the wind power equipment also includes: The frequency regulation output calculation module 102 is used to perform frequency regulation processing and analysis based on the multi-source monitoring data, and to calculate the frequency change rate, wind power frequency regulation output and energy storage frequency regulation output.
[0040] In this embodiment of the invention, the frequency regulation output calculation module 102 performs frequency regulation status analysis of the power grid based on multi-source monitoring data, calculates the frequency change rate, and, based on the frequency change rate, performs wind power frequency regulation analysis on the multi-source monitoring data to calculate wind power frequency regulation output. It also performs energy storage frequency regulation analysis on the multi-source monitoring data to calculate energy storage frequency regulation output. Specifically, the formula for calculating the frequency change rate is: ; in, The rate of change of frequency, This represents the change in wind power output. This represents the change in thermal power output. This represents the change in energy storage power. To meet the disturbance power, The equivalent inertial time constant of the power grid, For wind power penetration rate, Let be the equivalent inertial time constant of wind power. The virtual inertia coefficient for energy storage; The formula for calculating the frequency regulation output of wind power is: ; in, To contribute to wind power frequency regulation, This represents the real-time active power of wind power. Rated power of electricity The change in frequency This refers to the rated power of the wind power. This represents the active power primary frequency regulation coefficient for wind power. The formula for calculating the frequency regulation output of energy storage is: ; in, To contribute to energy storage frequency regulation, This is the preset equivalent transfer function for energy storage. This is the droop control coefficient for energy storage.
[0041] The frequency regulation coordination control module 103 is used to generate corresponding frequency regulation power commands according to the frequency regulation output of wind power and the frequency regulation output of energy storage, and to perform smoothing processing of timing control, and to issue commands and coordinate control.
[0042] In this embodiment of the invention, the frequency regulation coordination control module 103 generates corresponding wind power frequency regulation commands and energy storage frequency regulation commands according to the wind power frequency regulation output and energy storage frequency regulation output. Then, the wind power frequency regulation commands are smoothed by timing control to generate smooth wind power frequency regulation commands, and the energy storage frequency regulation commands are smoothed by timing control to generate smooth energy storage frequency regulation commands. Then, the wind power smooth frequency regulation commands and energy storage smooth frequency regulation commands are issued and coordinated to achieve coordinated frequency regulation of the power grid by wind power and energy storage.
[0043] Specifically, in another preferred embodiment provided by the present invention, the frequency modulation coordinated control module 103 specifically includes: The instruction generation unit is used to generate corresponding wind power frequency regulation instructions and energy storage frequency regulation instructions according to the wind power frequency regulation output and the energy storage frequency regulation output; The wind power frequency regulation smoothing processing unit is used to perform timing control smoothing processing on the wind power frequency regulation command to generate a wind power smooth frequency regulation command. The energy storage frequency modulation smoothing processing unit is used to perform timing control smoothing processing on the energy storage frequency modulation command to generate an energy storage smooth frequency modulation command. The collaborative control unit is used to issue and coordinate the wind power smooth frequency regulation command and the energy storage smooth frequency regulation command.
[0044] Furthermore, the high-frequency collaborative control system for the wind power equipment also includes: The frequency regulation tracking and diagnostic module 104 is used to track the frequency regulation effect of wind power and energy storage in real time, and to diagnose and correct deviations in the frequency regulation effect in real time.
[0045] In this embodiment of the invention, the frequency regulation tracking and diagnosis module 104 acquires frequency regulation tracking data by real-time tracking of the frequency regulation effect of wind power and energy storage, then performs deviation diagnosis on the frequency regulation tracking data to identify frequency regulation deviation situations, and then performs targeted real-time correction processing according to the frequency regulation deviation situation. For example, when the wind power output does not reach the target frequency regulation deviation situation, the energy storage output is automatically increased; when the energy storage power overshoots the frequency regulation deviation situation, automatic dynamic limiting processing is performed.
[0046] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.
Claims
1. A high-frequency coordinated control method for wind power equipment, characterized in that, The method specifically includes the following steps: Perform multi-source monitoring and data preprocessing of power grid, wind power and energy storage to obtain multi-source monitoring data; Based on the multi-source monitoring data, frequency modulation processing and analysis are performed to calculate the frequency change rate, wind power frequency modulation output, and energy storage frequency modulation output; Based on the frequency regulation output of the wind power and the frequency regulation output of the energy storage, corresponding frequency regulation power commands are generated, and smoothing processing of timing control is performed, and command issuance and coordinated control are carried out. Real-time tracking of frequency regulation effects of wind power and energy storage, and diagnosis and real-time correction of frequency regulation deviations.
2. The high-frequency coordinated control method for wind power equipment according to claim 1, characterized in that, The process of multi-source monitoring and data preprocessing of power grid, wind power, and energy storage to obtain multi-source monitoring data specifically includes the following steps: To conduct power grid status monitoring and acquire power grid monitoring data; Conduct wind power condition monitoring and acquire wind power monitoring data; Perform energy storage status monitoring and obtain energy storage monitoring data; The power grid monitoring data, the wind power monitoring data, and the energy storage monitoring data are synchronized in time to obtain synchronized monitoring data. The synchronous monitoring data is subjected to anomaly removal and standardization processing to obtain multi-source monitoring data.
3. The high-frequency coordinated control method for wind power equipment according to claim 1, characterized in that, The step of performing frequency modulation processing and analysis based on the multi-source monitoring data to calculate the frequency change rate, wind power frequency modulation output, and energy storage frequency modulation output specifically includes the following steps: Based on the multi-source monitoring data, frequency modulation status analysis is performed, and the frequency change rate is calculated; Based on the frequency change rate, wind power frequency regulation analysis is performed on the multi-source monitoring data to calculate the wind power frequency regulation output; Based on the frequency change rate, energy storage frequency regulation analysis is performed on the multi-source monitoring data to calculate the energy storage frequency regulation output.
4. The high-frequency coordinated control method for wind power equipment according to claim 3, characterized in that, The formula for calculating the rate of change of frequency is: ; in, The rate of change of frequency, This represents the change in wind power output. This represents the change in thermal power output. This represents the change in energy storage power. To meet the disturbance power, The equivalent inertial time constant of the power grid, For wind power penetration rate, Let be the equivalent inertial time constant of wind power. This is the virtual inertia coefficient for energy storage.
5. The high-frequency coordinated control method for wind power equipment according to claim 4, characterized in that, The formula for calculating the frequency regulation output of the wind power is: ; in, To contribute to wind power frequency regulation, This represents the real-time active power of wind power. Rated power of electricity The change in frequency This refers to the rated power of the wind power. This represents the active power primary frequency regulation coefficient for wind power. The formula for calculating the energy storage frequency regulation output is: ; in, To contribute to energy storage frequency regulation, This is the preset equivalent transfer function for energy storage. This is the droop control coefficient for energy storage.
6. The high-frequency coordinated control method for wind power equipment according to claim 1, characterized in that, The process of generating corresponding frequency regulation power commands based on the wind power frequency regulation output and the energy storage frequency regulation output, and performing smoothing processing for timing control, and issuing commands and coordinating control specifically includes the following steps: Based on the wind power frequency regulation output and the energy storage frequency regulation output, generate corresponding wind power frequency regulation commands and energy storage frequency regulation commands; The wind power frequency regulation command is smoothed by timing control to generate a smooth wind power frequency regulation command; The energy storage frequency modulation command is smoothed by timing control to generate a smooth energy storage frequency modulation command. The wind power smooth frequency regulation command and the energy storage smooth frequency regulation command are issued and coordinated for control.
7. The high-frequency coordinated control method for wind power equipment according to claim 1, characterized in that, The real-time tracking of the frequency regulation effect of wind power and energy storage, and the deviation diagnosis and real-time correction of the frequency regulation effect specifically include the following steps: Real-time tracking of the frequency regulation effect of wind power and energy storage, and acquisition of frequency regulation tracking data; The frequency modulation tracking data is used to diagnose the frequency modulation effect deviation and identify frequency modulation deviation situations. Based on the frequency modulation deviation, targeted real-time correction processing is performed.
8. A high-frequency collaborative control system for wind power equipment, characterized in that, The system includes a multi-source monitoring and processing module, a frequency modulation output calculation module, a frequency modulation coordinated control module, and a frequency modulation tracking and diagnostic module, wherein: The multi-source monitoring and processing module is used for multi-source monitoring and data preprocessing of power grid, wind power and energy storage to acquire multi-source monitoring data. The frequency regulation output calculation module is used to perform frequency regulation processing and analysis based on the multi-source monitoring data, and to calculate the frequency change rate, wind power frequency regulation output, and energy storage frequency regulation output. The frequency regulation coordinated control module is used to generate corresponding frequency regulation power commands according to the frequency regulation output of wind power and the frequency regulation output of energy storage, and to perform smoothing processing of timing control, and to issue commands and coordinate control. The frequency regulation tracking and diagnostic module is used to track the frequency regulation effect of wind power and energy storage in real time, and to diagnose and correct deviations in the frequency regulation effect in real time.
9. The high-frequency collaborative control system for wind power equipment according to claim 8, characterized in that, The multi-source monitoring and processing module specifically includes: The power grid condition monitoring unit is used to monitor the power grid condition and acquire power grid monitoring data. The wind power condition monitoring unit is used to monitor the wind power condition and acquire wind power monitoring data. The energy storage status monitoring unit is used to monitor the energy storage status and acquire energy storage monitoring data. The data time synchronization unit is used to synchronize the power grid monitoring data, the wind power monitoring data and the energy storage monitoring data in time, and to obtain synchronized monitoring data; The standardization processing unit is used to perform anomaly removal and standardization processing on the synchronous monitoring data to obtain multi-source monitoring data.
10. The high-frequency collaborative control system for wind power equipment according to claim 8, characterized in that, The frequency modulation coordinated control module specifically includes: The instruction generation unit is used to generate corresponding wind power frequency regulation instructions and energy storage frequency regulation instructions according to the wind power frequency regulation output and the energy storage frequency regulation output; The wind power frequency regulation smoothing processing unit is used to perform timing control smoothing processing on the wind power frequency regulation command to generate a wind power smooth frequency regulation command. The energy storage frequency modulation smoothing processing unit is used to perform timing control smoothing processing on the energy storage frequency modulation command to generate an energy storage smooth frequency modulation command. The collaborative control unit is used to issue and coordinate the wind power smooth frequency regulation command and the energy storage smooth frequency regulation command.
Citation Information
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