摘要
此处分析了PWM整流器双闭环控制系统中传递函数的推导及化简过程,并根据传递函数计算出电压环和电流环PI参数的理论值,通过仿真分析了PI参数对PWM整流器动态性能的影响,研究了限幅值对整流器动态性能的影响,总结出一套PI参数整定的方法。在Matlab/Simulink仿真环境中搭建了PWM整流器的仿真模型,验证了理论分析。最后基于TMS3202812型DSP的小功率平台,对理论和仿真得出PI参数进行了实验验证。
The PWM rectifier double-closed-loop transfer function＇s derivation and simplification procedures are analyzed concretely,then the PI parameters＇ theoretical value of voltage loop and current loop are calculated in terms of transfer function.The effect of PI parameters to PWM rectifier＇s dynamic performance is analyzed by simulations.This disserta- tion studied the effect of limitation of PI parameters to PWM rectifier＇s dynamic performance, then summarized the pro- cess of PI parameters tuning.The simulation models of PWM rectifier are built under Matlab/Simulink to verify the theoretical analysis.The experimental results verify the feasibility of the PI parameters designed and confirmed the analysis.
出处
《电力电子技术》
CSCD
北大核心
2011年第2期50-52,共3页
Power Electronics
关键词
整流器
比例积分参数
限幅值
rectifier
proportional integral parameter
limiter
