电力系统自动化2018，Vol.42Issue(12)：106-112,7.DOI:10.7500/AEPS20170823010
输出并联双有源全桥DC-DC变换器虚拟功率均衡控制方法
Virtual Power Balance Control Scheme of Dual Active Bridge DC-DC Converters with Output-parallel Structure
安峰 1宋文胜 1杨柯欣 1冯晓云1
作者信息
- 1. 西南交通大学电气工程学院,四川省成都市 610031
- 折叠
摘要
Abstract
In view of the parallel output dual active bridge(DAB)DC-DC converter in the power electronic transformer(PET), the influence of the front stage cascaded H-bridge (CHB) control strategy on the DAB is analyzed.A virtual power balance control (VPBC) method for DAB with equivalent input series output parallel (ISOP) and equivalent input independent output parallel(IIOP)is proposed,and the mechanism of the control strategy is also analyzed.Finally,the adopted VPBC scheme and input capacitor voltage balance control(VBC)scheme are verified and compared in a three cells experimental platform by using TMS320F28335+FPGA_6SLX45.The experimental results show that the proposed scheme can significantly improve the dynamic response of DAB DC-DC converter for the load and input voltage mutation based on the transmission power balance of each module.Meanwhile,the transient fluctuation of the transmission power in the converter can be effectively suppressed.关键词
电力电子变压器/双有源全桥DC-DC变换器/功率均衡控制/动态响应Key words
power electronic transformer/dual active bridge DC-DC converters/power balance control/dynamic response引用本文复制引用
安峰,宋文胜,杨柯欣,冯晓云..输出并联双有源全桥DC-DC变换器虚拟功率均衡控制方法[J].电力系统自动化,2018,42(12):106-112,7.
