电力系统保护与控制2012，Vol.40Issue(11)：106-111,6.
电网电压跌落时双馈风力发电系统的改进控制策略研究
Research of the improved control strategy for a double-fed generation system under grid voltage dip
摘要
Abstract
According to the problem that the traditional control scheme can not meet the requirement of low-voltage ride-through for DFIG, in this paper, based on the analysis of the stator and rotor transient process, we find the causes which affect the rotor over-current and DC bus overvoltage, and propose a new feedforward compensation method based on current control, that is, in the rotor side, adding a feedforward component which can reflect the attenuation of stator flux transient; in the grid side, adding a feedforward component which can reflect the power change between the two sides of converter. Finally, a DFIG model is built under PSCAD/EMTDC platform, the validity of this new control strategy is verified by simulation results through network voltage dip.关键词
风力发电/双馈异步电机/低电压穿越/电压跌落/改进控制策略Key words
wind energy generation/ DFIG/ low-voltage ride-through/ voltage dip/ improved control scheme分类
信息技术与安全科学引用本文复制引用
卢锴,张尧,倪伟东,夏成军..电网电压跌落时双馈风力发电系统的改进控制策略研究[J].电力系统保护与控制,2012,40(11):106-111,6.基金项目
863计划智能电网重大专项课题 （）
