双向全桥DC-DC变换器高效能控制研究与实现  

Research and implementation of bidirectional full bridge DC-DC converter with high-efficiency control

作　　者：许正平[1] 李俊[1] 

机构地区：[1]南京工业大学电气工程与控制科学学院,江苏南京211816

出　　处：《电力系统保护与控制》2016年第2期140-146,共7页Power System Protection and Control

摘　　要：针对变换器传统单移相控制的不足之处,分析了双重移相控制下双向全桥DC-DC变换器的功率传输特性。在变压器匝比不为1的条件下,建立了双重移相控制下变换器的通用低频小信号模型。对比了单移相控制方式,仿真结果显示了双移相控制有较小的功率损耗。最后,搭建了实验样机,实验结果证实了该控制方式的高效性和可行性,拓宽了变换器变比的选择范围,具有一定工程应用价值。Aiming at the shortcomings of converter under traditional single phase-shift control, this paper analyzes the power transmission characteristics of bidirectional full bridge DC-DC converter with dual phase-shift control. On the condition that ratio of the transformer is not 1, the general low frequency small signal model of converter with dual phase-shift control is built. Compared with single phase-shift control, simulation results show that the loss power of dual phase-shift control is smaller. Finally, the experimental prototype is built, the experimental results confirm the feasibility and efficiency of this control mode. It broadens the range of selection of ratio of the converter, and has certain value in engineering application.

关 键 词：移相控制 低频小信号模型 高效能 全桥DC-DC变换器 实验样机 

分 类 号：TM46[电气工程—电器]