New Efficient Submodule for a Modular Multilevel Converter in Multiterminal HVDC Networks

被引：77

作者：

Adam, Grain Philip ^{[1
]}

Abdelsalam, Ibrahim ^{[1
,2
]}

John, Edward Fletcher ^{[3
]}

Burt, Graeme M. ^{[1
]}

Holliday, Derrick ^{[1
]}

Finney, Stephen Jon ^{[1
]}

机构：

[1] Univ Strathclyde, Glasgow G1 1XQ, Lanark, Scotland

[2] Arab Acad Sci & Technol & Maritime Transport, Cairo 1029, Egypt

[3] Univ New South Wales, Sydney, NSW 2052, Australia

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2017年 / 32卷 / 06期

基金：

澳大利亚研究理事会;

关键词：

Flying capacitor (FC) cell; half- and full-bridge modular multilevel converter; mixed-cell commutation cells; voltage-source converter high-voltage direct-current (VSC-HVDC) transmission systems; OPERATION; MODELS; SYSTEM; CELLS;

D O I：

10.1109/TPEL.2016.2603180

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：

In high-voltage applications, the magnitude of total semiconductor losses (on-state and switching) determines the viability of modular-type multilevel converters. Therefore, this paper presents a new cell arrangement that aims to lower total semiconductor loss of the modular multilevel converter (MMC) to less than that of the half-bridge modular multilevel converter (HB-MMC). Additional attributes of the proposed cell are: it eliminates the protective thyristors used in conventional half-bridge cells that deviate part of the dc-fault current away from the antiparallel diode of the main switch when the converter is blocked during a dc short-circuit fault, and it can facilitate continued operation of the MMC during cell failures without the need for a mechanical bypass switch. Thus, the MMC that uses the proposed cell retains all advantages of the HB-MMC such as full modularity of the power circuit and internal faultmanagement. The claimed attributes of the proposed cell are verified using illustrative simulations and reduced scale experimentations. Additionally, this paper provides brief and critical discussions that highlight the attributes and limitations of popular MMC control methods and different MMC cells structures proposed in the literature, considering the power electronic system perspective.

引用

页码：4258 / 4278

页数：21

共 37 条

[1]

Adam GP, 2015, INT CONF RENEW ENERG, P1432, DOI 10.1109/ICRERA.2015.7418644

[2]

Adam GP, 2014, PROC IEEE INT SYMP, P1390, DOI 10.1109/ISIE.2014.6864817

[3]

Half- and Full-Bridge Modular Multilevel Converter Models for Simulations of Full-Scale HVDC Links and Multiterminal DC Grids [J].