摘要
基于三相PWM整流器数学模型的研究,采用提取电网电压正序分量的锁相控制和电流双闭环的解耦控制策略,实现了三相整流器的高功率因数运行,有效地减小了系统对电网的谐波污染。最后,通过实验验证了该控制方案的实用性。
Based on mathematical model of threephase PWM rectifier, this paper adopts phase loop lock (PLL) control by extracting positivesequence component of grid voltage and dualloop current decoupling con trol strategy, realized high power factor operation of threephase rectifier, effectively reduce the system harmon ic pollution. Finally, the practicality of this control scheme is verified by experiments.
出处
《华东交通大学学报》
2012年第6期40-44,共5页
Journal of East China Jiaotong University
基金
江西省自然科学基金项目(2011ZBAB215034)