A Reduced Switch Count Power Cell for Regenerative Cascaded H-Bridge (CHB) Converter

被引：0

作者：

Kang, Doho ^{[1
]}

Badawi, Sarah ^{[1
]}

Ni, Zhituo ^{[1
]}

Jain, Anekant ^{[1
]}

Narimani, Mehdi ^{[1
]}

Zargari, Navid Reza ^{[2
]}

Cheng, Zhongyuan ^{[2
]}

机构：

[1] McMaster Univ, ECE Dept, Hamilton, ON L8S 4L8, Canada

[2] Rockwell Automat Inc, Cambridge, ON N1R 5N9, Canada

来源：

IEEE ACCESS | 2024年 / 12卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Switches; Voltage; Motors; Capacitors; Vectors; Rectifiers; Modulation; Legged locomotion; Motor drives; Multilevel converters; Cascaded H-Bridge (CHB); reduced switch-count; control; motor drives; active front end; multilevel converter;

D O I：

10.1109/ACCESS.2024.3485552

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper proposes a new reduced switch-count power cell for a regenerative Cascaded H-Bridge (CHB) motor drive that reduces the number of switching devices per power cell from ten switches to six switches. The proposed power cell employs a Four-Switch Three Phase Inverter (FSTPI) at the front-end and a half-bridge inverter at the output of the power cell. The new configuration introduces four challenges: cell input current unbalance, input low order harmonics, DC-link voltage capacitor balancing, and switching harmonics. This paper analyzes and addresses these issues to ensure proper operation, control, and compliance with grid connection standards. The solutions are verified through simulation studies of a 3kV CHB motor drive and experimental validation with a single power cell setup. The results show the possibility of replacing the traditional power cell with a proposed cell, effectively reducing the required number of switches from ten to six.

引用

页码：161453 / 161467

页数：15

共 17 条

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