摘要
针对典型的半桥式双向DC/DC变换器拓扑结构特点,利用DCM模式下电感电流反向的特征,采用一种不额外添加半导体器件的软开关技术,减小开关损耗;采用多重化拓扑结构弥补DCM模式下电压、电流纹波大的缺陷;在控制方式上采用电压电流双闭环形式,将共用电压环的输出作为每个基本单元的给定电流,解决了并联结构的均流问题。
For the characteristics of the typical half-bridge bidirectional DC/DC converter topology and the reverse inductor current in DCM operation, this paper adopts a soft-switching technology without increasing extra semiconductor devices to decrease turn-off loss. The DCM associated voltage and current ripples can be alleviated by muhiphase interleaved operation. This paper adopts a voltage and current double close-loop control strategy to balances the inductor currents among cell modules using a same reference current from the common voltage closed-loop.
出处
《电子技术应用》
北大核心
2011年第3期68-71,共4页
Application of Electronic Technique
基金
重庆市自然科学基金项目(CSTC2007BB3169)
关键词
双向DC/DC变换器
软开关
非连续导电模式
双闭环
开关损耗
bidirectional DC/DC converter
soft-switching
discontinuous conducting mode （DCM）
double close-loop
switching losses
