文献类型：期刊文献

英文题名：A DC-Link Voltage Self-Balance Method for a Diode-Clamped Modular Multilevel Converter With Minimum Number of Voltage Sensors

作者：Gao, Congzhe[1];Jiang, Xinjian[2];Li, Yongdong[2];Chen, Zhe[3];Liu, Jingyun[4]

第一作者：Gao, Congzhe

通讯作者：Gao, CZ[1]

机构：[1]Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China;[2]Tsinghua Univ, Dept Elect Engn, Natl Key Lab Power Syst, Beijing 100084, Peoples R China;[3]Aalborg Univ, Dept Energy Technol, DK-9220 Aalborg, Denmark;[4]Beijing Union Univ, Automat Sch, Beijing 100101, Peoples R China

第一机构：Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China

通讯机构：[1]corresponding author), Beijing Inst Technol, Automat Sch, Beijing 100081, Peoples R China.

年份：2013

卷号：28

期号：5

起止页码：2125-2139

外文期刊名：IEEE TRANSACTIONS ON POWER ELECTRONICS

收录：;EI(收录号：20124915770144);Scopus(收录号：2-s2.0-84870429787);WOS:【SCI-EXPANDED(收录号:WOS:000314699700004)】；

基金：This work was supported by the National 863 Plan 2007AA05Z227, China. Recommended for publication by Associate Editor B. Ozpineci.

语种：英文

外文关键词：Capacitor voltage balance; cascade active power filter (CS-APF); diode-clamped modular multilevel converter (DCM2 C); minimum number of voltage sensors

摘要：Voltage balance issue of dc-link capacitors is very important for applications of a cascade multilevel converter or a modular multilevel converter. In this paper, a novel diode-clamped modular multilevel converter (DCM2 C) topology is proposed and a power feedback controlmethod is developed. With the developed control strategy, the proposed diode-clamped circuit becomes a controllable closed loop which enables the capacitor voltages to be clamped by lowpower rating clamping diodes. The proposed topology and control strategy has quicker response and requires much fewer voltage sensors than the normally used traditional method; therefore, the system performance improvement and cost reduction are expected. Based on the proposed DCM2 C, a novel N + 1-level cascade multilevel topology is proposed for a cascade active power filter (CS-APF). The simulation and experimental results from the CS-APF have demonstrated and verified the effectiveness of the proposed novel topology and control method.