一种改进型的直驱风电系统变流器控制方法  

An Improved Direct-drive Wind Power System Converter Control Method

作　　者：张志刚[1,2] 邓超[2] 黄守道[2] 

机构地区：[1]长沙学院电子与通信工程系,长沙410003 [2]湖南大学电气与信息工程学院,长沙410082

出　　处：《大电机技术》2013年第1期25-29,共5页Large Electric Machine and Hydraulic Turbine

基　　金：湖南省教育厅青年项目(09B012)

摘　　要：以背靠背双PWM全功率变换器控制的直驱永磁风力发电系统为研究对象,在传统控制策略的基础上,提出了一种改进型变流器控制策略:机侧变流器采用转子磁链定向控制直流母线电压,网侧变流器通过电网电压定向控制流向电网的功率。由于改进型控制策略中的功率环调节在网侧,其能量转换的效率较传统控制策略高,系统的响应速度加快,动态特性很好,稳态后各项参数的性能也很优越。然后,在Matlab/Simulink环境下对这种控制策略进行了仿真分析,并进一步通过实验验证了该控制策略的有效性和可行性。Direct-drive permanent magnet wind power system has a variety of topology structure and control strategy, and the control strategy of the stand or fall will directly affect the wind power system control effect quality.This thesis mainly discusses direct-driven permanent magnet synchronous wind energy conversion system used back-to-back PWM converter, a new converter control strategy is proposed based on the traditional one. The generator-side converter using rotor flux oriented control DC bus voltage, the grid-side converter through the grid voltage orientation control power. Then, in Matlab/Simulink environment for the control strategy of the simulation analysis, and further through the experiments verify the correctness and feasibility of the control strategy.

关 键 词：直驱永磁 风力发电系统 变流器 改进型控制策略 

分 类 号：TM315[电气工程—电机]