拓展移相调制DAB变换器脉冲序列控制新方法
New Pulse Train Control Method for an Extended Phase Shift Modulation Based on DAB Converter
徐阳 1李明雪 2刘腾飞 2于东升2
作者信息
- 1. 国网江苏省电力有限公司电力科学研究院,江苏 南京 211103
- 2. 中国矿业大学,电气工程学院,江苏 徐州 221116
- 折叠
摘要
为提高双有源全桥(DAB)变换器动态响应性能,提出了一种结合拓展移相(EPS)调制策略的DAB变换器脉冲序列(PT)控制方法.该方法引入了离散PT切换控制方法,可快速调节初级内移相比和外移相比,有效实现了变换器的快速稳压控制.在此基础上,建立了EPS-PT控制下变换器的输出电压纹波模型,分析了电感电流直流偏置特性.实验结果表明,所提出的DAB变换器EPS-PT控制方法可在保证输出电能质量的同时实现快速的动态响应性能.
Abstract
To improve the dynamic performance of a dual active bridge(DAB)converter,a pulse train(PT)control method is proposed.Based on the extended phase shift(EPS)modulation,a discrete PT switching control method is in-troduced to rapidly adjust the internal and external shift ratio to achieve fast voltage stabilization control.On this ba-sis,the output voltage ripple model under EPS-PT control is established and the DC bias characteristic of inductor current is analyzed.The experimental results show that the proposed EPS-PT control method can achieve fast dynamic response performance while ensuring the output power quality.
关键词
双有源全桥变换器/拓展移相调制/脉冲序列Key words
dual active bridge converter/extended phase shift modulation/pulse train引用本文复制引用
出版年
2025
NETL
NSTL
万方数据