变速恒频双馈风电机组暂态仿真模型  

Transient simulation model of variable-speed constant-frequency doubly-fed induction generator

作　　者：贾华[1] 刘艳[1] 陈磊 

机构地区：[1]内蒙古科技大学,内蒙古包头014010 [2]山西风电开发有限公司,山西大同037000

出　　处：《电源技术》2013年第7期1198-1201,共4页Chinese Journal of Power Sources

摘　　要：以双馈风力发电机(DFIG)为研究对象,分析了DFIG的建模和控制问题。研究了桨距角控制策略和双PWM变换器的矢量控制策略。基于实时数字仿真器(RTDS)平台建立了完备的DFIG暂态仿真模型,对风速变化以及三相短路情况下机组的运行情况进行了细致的仿真研究。仿真结果表明,该模型能够实现发电机输出有功功率、无功功率的解耦控制,直流母线电压及功率因数的调节,并且故障暂态特性与理论分析相符,从而验证了模型的正确性及控制策略的有效性。The modeling and control problem was analyzed with doubly-fed wind power generator（DFIG） as the research object.According to the variation of wind speed,strategies for pitch angle control and the vector control of dual PWM converter were developed.Based on RTDS platform,a comprehensive DFIG transient simulation model was built to perform detailed simulation research on generator operation while wind speed changing and three short-circuit faults occurring.The simulation results show that this model can implement stator active power and reactive power decoupling control,keep DC bus voltage constant and adjust the power factor.The transient characteristics of the fault is consistent with theoretical analysis,which verifies the correctness of the model and the effectiveness of the control strategy.

关 键 词：双馈风力发电机 矢量控制 实时数字仿真器 暂态模型 

分 类 号：TM614[电气工程—电力系统及自动化]