两种PWM整流器控制策略之比较

The Comparison of Two Control Strategies about PWM Rectifier

该文在三相PWM整流器dq轴数学模型基础上详细分析了基于电网电压定向的SVPWM控制方法,同时在此基础上提出了虚拟磁链观测方法,并给出了一种新颖的虚拟磁链观测器。详细研究分析了基于虚拟磁链定向的无电网电压传感器矢量控制系统。然后给出MATLAB/simulink的仿真波形和分析结果。

Base on the mathematical model of three-phase PWM rectifier on dq coordinate, voltage oriented space vector control method is analysed, and the virtual flux observation method is proposed on that basis and a novel virtual flux observer is given. And the virtual flux oriented vector control system without voltage sensors is studied detailedly. At last, the simulation wave based on MATLAB/simulink and the analysis result is given.