摘要
首先详细分析基于移相全桥的串联升压式部分功率DC-DC变换器的工作原理和特性,与传统Boost电路相比,该变换器具有开关管和二极管电气应力低、零电压开关以及输入输出电流均连续等优点;其次,对变换器建立小信号模型,由于不存在右半平面零点,因此避免了Boost电路动态响应慢的缺点;最后,通过1.6 k W的原理样机实验验证了理论分析的可靠性。
The operation principles and characteristics of series-connected step-up partial power processing DC-DC topology are analyzed in detail. Compared to the conventional Boost converter, zero-voltage-switching（ ZVS）,lower voltage stress of the switches and diodes,and continuous input /output currents are achieved.Moreover,the small-signal model is derived to show the better dynamic performance because it avoids the righthalf-plane zero effect of the Boost converter. Finally, a 1. 6 k W prototype circuit is built to validate the performance.
出处
《电工技术学报》
EI
CSCD
北大核心
2015年第19期128-135,共8页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(51377144)资助项目
关键词
串联
升压
部分功率
移相全桥
Series-connected
step-up
partial power processing
phase-shifted full-bridge
