中国电机工程学报2016，Vol.36Issue(2)：499-506,608,9.DOI:10.13334/j.0258-8013.pcsee.2016.02.022
全桥隔离DC/DC变换器相移控制归一化及其最小回流功率控制
Normalization of Phase Shift Control and Minimum Reflux Power Control of Full-bridge Isolated DC/DC Converters
侯聂 1宋文胜 1王顺亮1
作者信息
- 1. 磁浮技术与磁浮列车教育部重点实验室(西南交通大学),四川省成都市 610031
- 折叠
摘要
Abstract
A full-bridge isolated DC/DC converter is a key part of transformerless AC traction drive system in railway application. This paper focused on the phase-shift control methods, which are commonly used in full-bridge isolated DC-DC converter. Firstly, a triple-phase-shift control method was proposed, and the internal relationship among phase shift control methods was analyzed. According to the triple-phase- shift control method, all phase shift control methods were unified. Secondly, in order to improve system efficiency, the reactive power was analyzed roundly, and a minimum reflux power control method was shown without the load-side current sensor and the complex operations by defining and using an intermediate variable. Finally, these control methods were verified in a 1.5kW power experiment platform. Experimental results show that reflux power is reduced effectively by using the minimum reflux power control method, and the system efficiency is improved obviously around the rating output power.关键词
全桥隔离DC/DC变换器/最小回流功率/相移控制归一化/无电流传感器Key words
full-bridge-isolated DC/DC converters/minimum reflux power/unifying of phase shift control/current sensorless分类
信息技术与安全科学引用本文复制引用
侯聂,宋文胜,王顺亮..全桥隔离DC/DC变换器相移控制归一化及其最小回流功率控制[J].中国电机工程学报,2016,36(2):499-506,608,9.
