变速恒频风力发电机中网侧变流器的矢量控制

Vector Control of Grid-side Converter in Variable-speed Constant-frequency Wind Power Generator

建立了网侧变流器的数学模型,并通过坐标变换解耦有功功率和无功功率,采用电网电压定向的方法,设计出网侧变流器的矢量控制策略。最后在Simulink中搭建网侧变流器的拓扑结构,以及电网电压定向矢量控制模型。仿真结果表明,网侧变流器输出直流电压稳定。

In this paper,a mathematical model of grid side converter was built,and decoupled the active power and reactive power through coordinate transformation.Designed vector control strategy of grid side converter by using the grid voltage oriented approach.Finally,the grid side converter topology and grid voltage oriented vector control model were built in Simulink software.The simulation results show that the output DC bus voltage is stable.