高电压技术2012，Vol.38Issue(8)：2023-2029,7.
大型风电机组的功率曲线自寻优控制策略
Self-optimizing Power Curve Control Strategy for Large Scale Wind Turbine
夏安俊 1徐浩 1胡书举 2许洪华2
作者信息
- 1. 中国科学院电工研究所,北京100190 中国科学院风能利用重点实验室,北京100190 中国科学院研究生院,北京100049
- 2. 中国科学院电工研究所,北京100190 中国科学院风能利用重点实验室,北京100190
- 折叠
摘要
Abstract
The power signal feedback is usually used to track the maximum power point for large scale wind turbines control when the wind speed is below the rated speed.However,the maximum power curve of wind turbine is generally obtained from field experiments,which is hard to assure accuracy.Consequently,we proposed a strategy of self-optimizing power curve control based on tracking-differentiator to improve the efficiency of wind turbine operation in low wind.The differential signals of rotor speed and mechanical power are extracted by the trackingdifferentiators and used to determine the position relation between the actual power curve and the maximum power point.A three-dimensional fuzzy controller was designed for the real-time regulation of the coefficient of power curve.Based on a 2MW doubly-fed wind power generation system,the self-optimizing power curve control strategy was simulated in the Bladed simulation environment.Simulation results show that the proposed method has comparatively small dependence on the parameters of wind turbine such as the power characteristic or torque characteristic.The method can regulate the coefficient of the power curve real-timely and adjust the actual power curve to the position of maximum power curve effectively when wind speed changes,verifying the correctness and feasibility of the control strategy.关键词
风力机/最大功率点跟踪（MPPT）/模糊控制/自寻优控制/微分跟踪器/最大功率曲线Key words
wind turbine/maximum power point tracking(MPPT)/fuzzy control/self-optimization control/tracking differentiator/maximum power curve分类
信息技术与安全科学引用本文复制引用
夏安俊,徐浩,胡书举,许洪华..大型风电机组的功率曲线自寻优控制策略[J].高电压技术,2012,38(8):2023-2029,7.
