基于前馈解耦的三相PWM整流器研制

Research on PWM Converter based on Decoupling Control Strategy

从PWM整流器的矢量控制原理出发,首先建立了整流器输入电流控制所需的d,q模型,提出了d,q轴电流的状态解耦控制策略,并详细介绍了基于IPM的主电路设计和基于TMS320LF2407A的控制电路设计。样机实验结果表明,该整流器能获得单位功率因数的正弦输入电流、稳定的直流输出电压和快速的动态响应,满足了设计要求。

This paper starts with the vector control theory of PWM converter.First d,q model is established which is needed for the current control of PWM Converter.A d,q current decoupling control strategy is proposed.The main circuit based on IPM and the digital control circuit based on TMS320LF2407A ae detailed introduced.The experimental results present that the PWM converter can run with sine input current with unit power factor,steady DC output voltage and fast dynamic response. The characteristics meet the design demands.