数字控制级联式双向DC／DC变换器的研究  

Study on the Digital Controlled Two-Stage Bi-directional DC/DC Converter

作　　者：张士明[1] 张方华[1] 

机构地区：[1]南京航空航天大学,江苏南京210016

出　　处：《电源技术应用》2007年第5期21-25,共5页Power Supply Technologles and Applications

摘　　要：对由Buck/Boost双向变换器与双向半桥直流变换器构成的级联式双向DC/DC变换器的原理进行了分析,并研究了一种适用于Boost变换器的无源软开关电路。在数字控制的硬件平台之上,提出一端稳压和一端稳流的控制策略,可实现能量双向流动的自由转换。最后给出了实验波形,从而对理论分析进行了验证。Two-stage Bi-directional DC/DC converter which was composed of Buck/Boost BDC and bi-direetional Half- Bridge DCT was described , a novel reactive-soft-switching boost converter was also introduced. An experimental prototype of bidirectional DC/DC converter controlled by DSP is designed. A novel control scheme adopting one port voltage regulated and another port cun＇ent regulated is proposed to realize the energy conversion in bi-directional freely. In the last, experimental waves verify the theory.

关 键 词：双向DC/DC变换器 无源软开关 数字信号处理器 控制策略 

分 类 号：TM46[电气工程—电器]