Research on Power - load Cooperative Control of Wind Turbines Based on Variable Domain Theory

Xin  Guan; Haoran  Xu; Chenhao  Zhao; Yu  Hua; Zhe  Wang

doi:10.6180/jase.202509_28(9).0005

Research on Power - load Cooperative Control of Wind Turbines Based on Variable Domain Theory

Xin GuanThis email address is being protected from spambots. You need JavaScript enabled to view it., Haoran Xu, Chenhao Zhao, Yu Hua, and Zhe Wang

Shenyang Institute of Engineering, Shenyang, Liaoning, 110136

Received: September 16, 2024
Accepted: October 29, 2024
Publication Date: December 7, 2024

Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202509_28(9).0005

In order to improve the operational stability of wind turbines and optimize power quality, this paper studies the blade root load and power output of wind turbines under actual working conditions from the perspective of pitch control. The calculation method of load is simplified by Coleman coordinate transformation, and the variable universe fuzzy control rule of blade load control is established. The blade root load and power output of wind turbine under three control modes of unified pitch control, d-q PID control and power load cooperative control are calculated. The results show that compared with the other two control methods, the variable universe fuzzy power-load coordinated control method has more advantages in reducing the blade root flapping torque and shimmy torque, improving the response speed, and suppressing the power output f luctuation. Especially in reducing blade root bending moment, the overshoot has decreased by 17% compared to unified pitch control.Therefore,the variable universe fuzzy PID coordinated control method is of great significance in improving the resistance to external disturbances and optimizing the output power during the operation of wind turbines.

Keywords: windturbine; variableuniverse theory; power-load coordinated control; Coleman transform; pitch control

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