CN-122014502-A - Power generation regulation and control method and device for wind power plant, electronic equipment, medium and product

Abstract

The invention relates to the technical field of wind power generation and discloses a method, a device, electronic equipment, a storage medium and a program product for regulating and controlling the power generation of a wind power plant, wherein the method for regulating and controlling the power generation of the wind power plant comprises the steps of constructing a reference field cooperative operation state according to historical wind power operation data; the method comprises the steps of identifying fault fans in a target wind power plant according to real-time wind power operation data and a reference field cooperative operation state to obtain target fault fans, determining station-level total power shortage corresponding to the target fault fans according to power output values and disturbance data of the target fault fans, and distributing the station-level total power shortage to each target fan according to power increase control parameters of each target fan in a healthy fan set until station-level total power shortage distribution is finished. According to the invention, the default power is determined by identifying the fault fans, so that the healthy fans bear the default power, and the coordination of multiple fans and the accuracy of power generation are improved.

Inventors

• HE LIFU
• ZHANG CHEN
• KE XUE
• Guo Mianming
• LIU JIE
• SHEN YANGWU
• Huang Zhongchu
• WANG YUTING
• MEI JIE
• Hu Zhangbo
• QIN CHUAN

Assignees

• 中国长江三峡集团有限公司

Dates

Publication Date

20260512

Application Date

20260402

Claims (13)

1. 1. A method for regulating and controlling power generation of a wind farm, the method comprising: Acquiring historical wind power operation data of a target wind power plant, and constructing a reference field cooperative operation state according to the historical wind power operation data, wherein the reference field cooperative operation state is used for representing the instantaneous energy output and structural load distribution balance relation of the target wind power plant under the input of various reference wind resources; acquiring real-time wind power operation data of the target wind power plant, and identifying a fault fan in the target wind power plant according to the real-time wind power operation data and the cooperative operation state of the reference field to obtain a target fault fan; determining the total station-level power shortage corresponding to the target fault fan according to the power output value and disturbance data of the target fault fan, wherein the total station-level power shortage corresponding to the target fault fan is used for representing the power shortage of the target wind power plant caused by the fault of the target fault fan; The method comprises the steps of obtaining a healthy fan set of the target wind power plant, distributing station-level total power shortage for each target fan according to power increase control parameters of each target fan in the healthy fan set until station-level total power shortage distribution is finished, and carrying out power generation regulation and control on the target wind power plant, wherein the power increase control parameters are used for representing power increasing capacity, power increase control constraint and power increase economic efficiency of the healthy fans.
2. 2. The method of claim 1, wherein said constructing a reference field collaborative behavior from said historical wind power operational data comprises: Determining wake flow influence weights between every two turbines in the target wind power plant according to the historical wind power operation data, wherein the wake flow influence weights are used for representing aerodynamic influence between every two turbines due to wake flow; constructing a directional aerodynamic correlation diagram of the target wind power plant according to the wake flow influence weight, wherein the directional aerodynamic correlation diagram is used for aerodynamic influence among a plurality of fans in the target wind power plant; Performing cluster analysis on the historical wind power operation data to obtain a plurality of wind condition clusters, and performing probability distribution analysis on each wind condition cluster to obtain a reference power vector and a reference load vector corresponding to each wind condition cluster; and constructing the reference field cooperative operation state according to the directed pneumatic correlation diagram, the reference power vector and the reference load vector.
3. 3. The method according to claim 2, wherein the identifying the faulty fan in the target wind farm according to the real-time wind power operation data and the reference field cooperative operation state to obtain the target faulty fan includes: matching is carried out in the reference field cooperative operation state according to the real-time wind power operation data, and a target directional aerodynamic correlation diagram, a target reference power vector and a target reference load vector corresponding to the real-time wind power operation data are obtained; Determining a real-time power vector and a real-time load vector corresponding to the real-time wind power operation data according to the real-time wind power operation data, and judging whether the target wind power plant is unbalanced in a field collaborative state according to the target reference power vector, the target reference load vector, the real-time power vector and the real-time load vector; When the target wind power plant generates field collaborative state unbalance, a power flow matrix is constructed according to the target directional aerodynamic correlation diagram and the power generated by a plurality of fans in the target wind power plant, and a power residual error vector is obtained according to the difference between the real-time power vector of each fan and the target reference power vector; Inputting the power flow matrix and the power residual error vector into a preset optimization objective function for optimizing to obtain a disturbance potential vector, and taking a fan corresponding to a target disturbance potential with disturbance potential greater than a preset noise threshold in the disturbance potential vector as a candidate fault fan; and verifying the candidate fault fans, and obtaining the target fault fans according to a verification result.
4. 4. A method according to claim 3, wherein said determining whether a field collaborative imbalance of the target wind farm occurs based on the target reference power vector, the target reference load vector, the real-time power vector, and the real-time load vector comprises: determining a full-field total power deviation according to the real-time power vector and the target reference power vector; Determining a load distribution difference according to the distance between the real-time load vector and the target reference load vector; And if the total power deviation of the whole farm is larger than a preset total power deviation threshold value or the load distribution difference is larger than a preset load distribution difference threshold value, judging that the target wind farm is unbalanced in the cooperative state of the farm domain.
5. 5. The method of claim 3, wherein the verifying the candidate faulty fan, and obtaining the target faulty fan according to the verification result, includes: the method comprises the steps of obtaining audio data of the candidate fault fans, and extracting voiceprint features from the audio data, wherein the voiceprint features are used for representing the mechanical running states of the candidate fault fans; acquiring historical audio data of the candidate fault fans, and determining a characteristic value operation range according to the historical audio data; And when the voiceprint feature is not in the feature value operation range, determining a cross correlation coefficient of the voiceprint feature and the electric power deviation of the candidate fault fan, verifying the candidate fault fan according to the cross correlation coefficient, and obtaining the target fault fan according to the verification result.
6. 6. The method according to any one of claims 1 to 5, wherein determining the total station level power shortage corresponding to the target failed fan according to the power output value and disturbance data of the target failed fan comprises: determining an average deviation amount according to the average value of the difference between the reference power value and the power output value of the target fault fan in a preset time window; Determining a linkage power loss according to the product of a power flow matrix element, a disturbance potential and a propagation efficiency factor in the disturbance data of the target fault fan; and obtaining the total power shortage of the station level corresponding to the target fault fan according to the average deviation and the sum of the chained power losses.
7. 7. The method according to any one of claims 1 to 5, wherein the obtaining the healthy fan set of the target wind farm, according to the power increase control parameter of each target fan in the healthy fan set, allocates the station-level total power shortage to each target fan until the station-level total power shortage allocation is finished, includes: determining the healthy fan set according to fans except the target fault fan in the target wind power plant; Inputting a power increasing cost function in the power increasing control parameters of each healthy fan in the healthy fan set to a preset optimizing objective function based on the total compensation power constraint and the individual power constraint to obtain a power increasing preset amount of each healthy fan; Obtaining a product result according to the product of the preset power increase amount and the unit power increase cost coefficient of each healthy fan, and obtaining a power increase potential value of each healthy fan according to the quotient of the power increase efficiency in the power increase control parameter and the product result; and distributing the station-level total power shortage to a plurality of healthy fans according to the power boosting potential value until the station-level total power shortage distribution is finished.
8. 8. The method of claim 7, wherein said allocating said station level total power deficit to a plurality of said healthy fans in accordance with said power boost potential value until said station level total power deficit allocation is completed comprises: Selecting a target healthy fan with the highest power boosting potential value currently from the healthy fan set, and distributing corresponding target power for the target healthy fan; And eliminating the target healthy fans from the healthy fan set, subtracting the target power from the station-level total power shortage, and returning to the step of selecting the target healthy fan with the highest current power boosting potential value in the healthy fan set until the station-level total power shortage distribution is finished.
9. 9. The method according to any one of claims 1 to 5, further comprising: storing the target fault fan and the fault propagation path of the target fault fan to obtain a disturbance event knowledge base; according to the disturbance event knowledge base, carrying out statistical analysis on the target fault fan and the fault propagation path of the target fault fan, and determining the expansion trend of the target fault fan; and generating a predictive maintenance instruction according to the expansion trend so as to maintain the target fault fan.
10. 10. A power generation regulation device for a wind farm, the device comprising: The reference operating state construction module is used for acquiring historical wind power operating data of a target wind power plant and constructing a reference field cooperative operating state according to the historical wind power operating data, wherein the reference field cooperative operating state is used for representing the instantaneous energy output and structural load distribution balance relation of the target wind power plant under the input of various reference wind resources; The fault fan identification module is used for acquiring real-time wind power operation data of the target wind power plant, and identifying a fault fan in the target wind power plant according to the real-time wind power operation data and the reference field cooperative operation state to obtain a target fault fan; The power shortage determining module is used for determining the total power shortage of the station level corresponding to the target fault fan according to the power output value and disturbance data of the target fault fan, wherein the total power shortage of the station level corresponding to the target fault fan is used for representing the power shortage of the target wind power plant caused by the fault of the target fault fan; The power distribution module is used for acquiring a healthy fan set of the target wind power plant, distributing the station-level total power shortage for each target fan according to the power increase control parameters of each target fan in the healthy fan set until the station-level total power shortage distribution is finished so as to perform power generation regulation and control on the target wind power plant, wherein the power increase control parameters are used for representing the power increase capacity, the power increase control constraint and the power increase economic efficiency of the healthy fan.
11. 11. An electronic device, comprising: A memory and a processor, the memory and the processor are in communication connection, the memory stores computer instructions, and the processor executes the computer instructions, thereby executing the power generation regulation method of the wind farm according to any of claims 1 to 9.
12. 12. A computer-readable storage medium, wherein computer instructions for causing a computer to execute the power generation regulation method of a wind farm according to any of claims 1 to 9 are stored on the computer-readable storage medium.
13. 13. A computer program product comprising computer instructions for causing a computer to perform the power generation regulation method of a wind farm according to any of claims 1 to 9.

Description

Power generation regulation and control method and device for wind power plant, electronic equipment, medium and product Technical Field The invention relates to the technical field of wind power generation, in particular to a power generation regulation and control method and device of a wind power plant, electronic equipment, media and products. Background With the acceleration of global energy transformation, wind power generation is an important component of clean energy, and the installed capacity and single-site scale of wind power generation continue to expand. Large wind farms typically consist of tens or even hundreds of fans forming a complex pneumatic mechanical electrical coupling system. In such a high density layout of fan clusters, the operation of an upstream fan will produce a significant wake effect on its downstream fan as the wind flow passes through the entire wind farm, resulting in a reduced incoming wind speed and increased turbulence intensity for the downstream fan. Therefore, the fans of the wind farm need to be regulated according to the total power generation. In the related technology, the wind farm operation control method aims at a single fan, captures the maximum wind energy under a specific wind speed by adjusting the pitch angle and the generator torque, and triggers an alarm or stops by setting a fixed threshold value of the fan operation parameters based on the monitoring and alarming of the data acquisition and monitoring control system. However, the interaction between fans cannot be coordinated from the system level, and only single-machine power generation is pursued, so that wake loss of the full wind power plant is aggravated, negative effects are formed, and the stability and accuracy of wind power generation are affected. Disclosure of Invention The invention provides a power generation regulation and control method, a device, electronic equipment, a storage medium and a program product of a wind farm, which are used for solving the problems that the wake loss of the whole wind farm is aggravated, negative effects are formed and the stability and the accuracy of wind power generation are affected due to the wind farm operation control method in the related technology. According to the first aspect, the invention provides a power generation regulation and control method of a wind power plant, which comprises the steps of obtaining historical wind power operation data of the target wind power plant, constructing a reference field cooperative operation state according to the historical wind power operation data, wherein the reference field cooperative operation state is used for representing the instantaneous energy output and structural load distribution balance relation of the target wind power plant under the input of various reference wind resources, obtaining real-time wind power operation data of the target wind power plant, identifying a fault fan in the target wind power plant according to the real-time wind power operation data and the reference field cooperative operation state to obtain a target fault fan, determining station-level total power shortage corresponding to the target fault fan according to the power output value and disturbance data of the target fault fan, wherein the station-level total power shortage corresponding to the target fault fan is used for representing the power shortage of the target wind power plant caused by the fault of the target fault fan, obtaining a healthy fan set of the target wind power plant, distributing station-level total power shortage according to the power increase control parameter of each target fan in the healthy fan set until the station-level total power shortage distribution is finished, and carrying out power generation regulation and control on the target wind power plant, and the power increase control parameter is used for representing the power lifting capacity, the increase power control and the economic power constraint. According to the method, a reference field cooperative operation state is constructed according to historical wind power operation data, quantitative characterization is carried out on the energy output and structural load balance relation of the wind power plant under different wind resource conditions, and an accurate comparison reference is provided for subsequent fault identification. According to the method, the fault fans in the target wind power plant are identified according to the real-time wind power operation data and the reference field cooperative operation state, so that the target fault fans are obtained, and the automatic and accurate identification of the fault fans is realized based on the difference comparison of the real-time data and the reference state. According to the power output value and the disturbance data of the target fault fan, the total power shortage of the station level corresponding to the target fault fan is determined, the station level power sh