Control and Experiment of Pulsewidth-Modulated Modular Multilevel Converters

被引：1392

作者：

Hagiwara, Makoto ^{[1
]}

Akagi, Hirofumi ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Elect & Elect Engn, Tokyo 1528552, Japan

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2009年 / 24卷 / 07期

关键词：

Medium-voltage power conversion; multilevel converters; voltage-balancing control; PWM CONVERTER; TRANSFORMERLESS; SYSTEM; TOPOLOGIES; INDUSTRY; STATCOM; DESIGN;

D O I：

10.1109/TPEL.2009.2014236

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

A modular multilevel converter (MMC) is one of the next-generation multilevel converters intended for high- or medium-voltage power conversion without transformers. The MMC is based on cascade connection of multiple bidirectional chopper-cells per leg, thus requiring voltage-balancing control of the multiple floating dc capacitors. However, no paper has made an explicit discussion on voltage-balancing control with theoretical and experimental verifications. This paper deals with two types of pulsewidth-modulated modular multilevel converters (PWM-MMCs) with focus on their circuit configurations and voltage-balancing control. Combination of averaging and balancing controls enables the PWM-MMCs to achieve voltage balancing without any external circuit. The viability of the PWM-MMCs, as well as the effectiveness of the voltage-balancing control, is confirmed by simulation and experiment.

引用

页码：1737 / 1746

页数：10

共 23 条

[1]

Large static converters for industry and utility applications [J].