有效抑制电网波动影响的最大风能捕获控制  

Control of Capture Maximal Wind Energy with Restraining Fluctuation of Grid Voltage

作　　者：王晓兰[1] 梁波[1] 郑伟[1] 

机构地区：[1]兰州理工大学电气工程与信息工程学院,甘肃兰州730050

出　　处：《电机与控制应用》2009年第3期14-17,23,共5页Electric machines & control application

基　　金：甘肃省自然科学基金资助项目(0710RJZA054)

摘　　要：应用定子磁场定向的矢量控制原理,建立了基于变速恒频双馈发电机的风力发电系统转速控制模型,将自抗扰控制技术引入到最大风能捕获控制中,采用扩张状态观测器对电压方程中的耦合项和电网电压等扰动项进行观测并加以补偿,提高了系统的跟踪性能。在MATLAB/Smulink中的仿真表明,系统在不同风速下都有比PID控制更小的超调量和更快的响应速度,对电网电压的波动有较强的抑制能力。Based on stator-flux-oriented, using the speed control model of variable speed constant frequency wind power generation system with doubly-fed induction generator, the auto-disturbance rejection control is introduced to capture the maximal wind energy. The extended state observer （ESO） is used to observe and compensate the couplings voltage and the fluctuations of grid voltage so as to improve the system performances. Simulation results in MATLAB/Smulink has shown that the system with the auto-disturbance rejection control has better dynamic performances and ability in restraining fluctuation of grid voltage than PI system.

关 键 词：变速恒频 双馈异步电机 自抗扰控制 

分 类 号：TM301.2[电气工程—电机] TM315