摘要
介绍一种采用移相调频优化控制方式的LCC谐振电路。在优化控制模式下电路实现软开关,降低开关损耗,同时改善变换器向电源反馈能量的过程,电源传输效率得到提高。详细分析了电路工作模式,利用基波分析的方法得到其数学模型,并采用数字锁相实现优化控制。实验结果证明该控制模式合理可行。
This paper introduces a LCC resonant circuit based on phase-shifted and frequency-varied optimal control.Under this optimal control,the circuit achieves soft switching to lower switching losses,and further better the process of energy feedback,the power efficiency is also improved.This paper analyzes the operating mode of the circuit,and uses the method of fundamental analysis to obtain the mathematical model.Finally digtal phase locked loop realizes the optimal control.The experimental results show the feasibility and rationality of this control mode.
出处
《电力电子技术》
CSCD
北大核心
2010年第11期87-89,共3页
Power Electronics
关键词
谐振电路
软开关
数字锁相
resonant circuit
soft switching
digtal phase locked loop
