A Modular Multilevel Hybrid Active Bridge DC-DC Converter Suitable for Medium-Voltage DC Distribution Grid

被引：0
|
作者：
Xu, Xingping [1 ]
Wang, Xuehua [1 ]
Ruan, Xinbo [1 ]
Xie, Yuan [1 ]
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Wuhan, Hubei, Peoples R China
来源：
THIRTY-FOURTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2019) | 2019年
基金：
中国国家自然科学基金;
关键词：
modular multilevel converter; medium-voltage DC; PWM and phase shift control; OPERATION;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This paper proposes a modular multilevel hybrid active bridge (MHAB) DC-DC converter, which is suitable for medium-voltage DC distribution grid. A modular structure and a conventional two-level half-bridge are employed in the medium-voltage (MV) and low-voltage (LV) sides of the proposed converter respectively, which is suitable for MV DC distribution grid, such as +/- 10 kV to 400 V. The system structure is analyzed and simplified. The pulse-width modulation (PWM) plus phase shift (PS) control strategy is applied to control the transferred power, and submodule DC-link capacitor voltage sorting method is adopted to balance the MV side submodule capacitor voltages. The effectiveness of the proposed MHAB converter is verified by simulation results.
引用
收藏
页码：376 / 381
页数：6
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