用于电动汽车的多重化软开关双向DC/DC变换器的研究  

Study on multiple soft-switching bidirectional DC/DC converter for electric vehicle

作　　者：王明渝[1] 邓湘鄂[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044

出　　处：《电子技术应用》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)

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.

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 

分 类 号：TM464[电气工程—电器]