Direct PR individual pitch control for wind turbine fatigue load mitigation

被引：0
|
作者：
Li H. [1 ]
Yang C. [1 ,2 ]
Hu Y. [1 ]
Li Y. [1 ]
Liang Y. [3 ]
Ouyang H. [4 ]
机构：
[1] State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing
[2] Qinhuangdao Power Supply Company, State Grid Jibei Electric Power Co. Ltd., Qinhuangdao
[3] Chongqing KK-QIANWEI Wind Power Equipment Co. Ltd., Chongqing
[4] CSIC (Chongqing) Haizhuang Wind Power Equipment Co. Ltd., Chongqing
来源：
| 1600年 / Electric Power Automation Equipment Press卷 / 36期
基金：
中国国家自然科学基金;
关键词：
High-order harmonic loads; Individual pitch control; Load mitigation; PR controller; Wind power; Wind turbines;
D O I：
10.16081/j.issn.1006-6047.2016.03.013
中图分类号：
学科分类号：
摘要：
A direct IPC (Individual Pitch Control) strategy without Coleman transform is proposed to mitigate the fatigue loads of wind turbine, which are induced by the nonuniform wind speed across the rotation plane. Based on the relation between the rotational reference frame of blades and the fixed reference frame of hub, the impact of blade harmonic load on the rotor hub load, as well as the corresponding suppressing mechanism, are analyzed. A control strategy based on direct PR (Proportional Resonant) IPC is proposed to mitigate the fatigue loads and to avoid the coupling between tilt and yaw moments. An averaged linear model of the periodically time-varying blade system is built, the phase compensator and the controller parameters are designed, and the stability of the proposed control strategy is analyzed with the time-varying system parameters in frequency domain. A combined load-control simulation model for the wind turbine-generator system is established based on TurbSim-FAST-MATLAB/Simulink, the fatigue load characteristics of a 1.5 MW wind turbine in turbulent wind is analyzed and the effect of fatigue load mitigation is discussed for different pitch control strategies. Results show that, compared with conventional pitch control strategy, the proposed PR IPC strategy is more effective for the mitigation of wind turbine fatigue loads and has less impact on the active power output of unit. © 2016, Electric Power Automation Equipment Press. All right reserved.
引用
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页码：79 / 85
页数：6
相关论文
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