单相PWM整流器电压环的优化设计与仿真

Optimization Design and Simulation for the Voltage Loop of Single-phase PWM Rectifier

为了改进单相电压型脉宽调制(PWM)整流器电压环的动态设计,提出了1种双零点典型Ⅱ型系统设计法,用于该整流器系统电压外环的调节器结构与参数优化设计,以取代目前广泛采用的典型Ⅱ型系统设计法。然后对按照这2种不同方法设计的系统进行了Simulink建模和仿真。仿真结果表明,采用提出的新方法设计的整流器系统时域性能指标更好。

In order to improve the dynamic design for single-phase voltage-type pulse width modulated（PWM） rectifier,double-zero points representative system is proposed for the regulator structure and parameter optimization design of the voltage loop of single-phase PWM rectifier to replace the traditional representative Ⅱ system.In the end,the systems which were designed by traditional representative Ⅱ system and double-zero points representative Ⅱ system were simulated by simulink.The result of simulation showed that,compared to the traditional representative Ⅱ system,double-zero points representative Ⅱ system has better performance index in time domain.