OUTPUT POWER AND TOWER LOAD CONTROL OF LARGE-SCALE WIND TURBINES BASED ON ACTIVE DISTURBANCE REJECTION CONTROL

Tian De; Huang Mingyue; Tang Shize; Deng Yuanzhuo; Zhou Qiang; Deng Ying

doi:10.19912/j.0254-0096.tynxb.2022-0088

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (5) : 466-472. DOI: 10.19912/j.0254-0096.tynxb.2022-0088

OUTPUT POWER AND TOWER LOAD CONTROL OF LARGE-SCALE WIND TURBINES BASED ON ACTIVE DISTURBANCE REJECTION CONTROL

Tian De, Huang Mingyue, Tang Shize, Deng Yuanzhuo, Zhou Qiang, Deng Ying

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Abstract

When wind turbines operate in the region above the rated wind speed, the linear active disturbance rejection pitch controller is proposed to keep the output power stable and reduce tower loads. Firstly, based on the theory of active disturbance rejection control and dynamic equations of wind turbines, the discrete models of linear state error feedback and linear extended state observer are obtained. Secondly, the rotor speed control loop and the tower damping control loop are designed in Matlab to build the pitch controller model. Through the overall identification and compensation of total disturbances, the control performance can be improved. Finally, the high-fidelity wind turbine model is utilized to verify the performance of the controller under step wind, extreme gust, and turbulent wind conditions. Simulation results show that the proposed pitch controller can further reduce tower loads while stabilizing output power.

Key words

wind turbines / power control / disturbance rejection / tower loads / pitch control / linear active disturbance rejection control

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Tian De, Huang Mingyue, Tang Shize, Deng Yuanzhuo, Zhou Qiang, Deng Ying. OUTPUT POWER AND TOWER LOAD CONTROL OF LARGE-SCALE WIND TURBINES BASED ON ACTIVE DISTURBANCE REJECTION CONTROL[J]. Acta Energiae Solaris Sinica. 2023, 44(5): 466-472 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0088

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