双馈风力发电机并网控制研究

摘要

According to the operation performance of doubly-fed wind power generator system, no-load grid-connection mathematical model of doubly-fed induction generator (DFIG) is deduced, and no-load grid-connection control system of DFIG is designed based on the stator flux orientation vector control technique with the rotor current dynamic regulation is considered.The simulation models of the DFIG wind system are established based upon Matlab/Simulink, and the experiments are taken on the platform of DFIG wind generation system.The simulation and experimental results verify the correctness and effectiveness of the control method.With the proposed control strategy,the DFIG can realize no surge grid-connection.%根据双馈风力发电系统的运行特点,基于定子磁链定向的矢量控制技术,考虑转子电流动态调节,推导了双馈电机空载并网数学模型,设计了双馈风力发电机空载并网控制系统.基于Matlab/Simulink仿真平台,对双馈风力发电机空载并网控制模型进行仿真分析及实验验证.仿真和实验结果验证了控制方法的正确性和有效性,利用所提出的并网控制策略,双馈风力发电机能够实现无冲击并网.