A Control Method for Voltage Balancing in Modular Multilevel Converters

被引：271

作者：

Deng, Fujin ^{[1
]}

Chen, Zhe ^{[1
]}

机构：

[1] Aalborg Univ, Dept Energy Technol, DK-9220 Aalborg, Denmark

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2014年 / 29卷 / 01期

关键词：

Capacitor voltage balancing; control method; modular multilevel converter (MMC); FREQUENCY;

D O I：

10.1109/TPEL.2013.2251426

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：

The modular multilevel converter (MMC) is attractive for medium-or high-power applications because of the advantages of its high modularity, availability, and high power quality. The voltage balancing of the floating capacitors in the cascaded submodules of the MMC is a key issue. In this paper, a voltage-balancing control method is proposed. This method uses the phase-shifted carrier-based pulsewidth modulation scheme to control high-frequency current components for capacitor voltage balancing in the MMC without measuring the arm currents. Simulations and experimental studies of the MMC were conducted, and the results confirm the effectiveness of the proposed capacitor voltage-balancing control method.

引用

页码：66 / 76

页数：11

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