中国电机工程学报Issue(29)：5171-5179,9.DOI:10.13334/j.0258-8013.pcsee.2014.29.019
一种能够阻断直流故障电流的新型子模块拓扑及混合型模块化多电平换流器
A New Topology of Sub-modules With DC Fault Current Blocking Capability and a New Type of Hybrid MMC Converter
向往 1林卫星 1劲宇 1程时杰1
作者信息
- 1. 强电磁工程与新技术国家重点实验室 华中科技大学电气与电子工程学院，湖北省 武汉市 430074
- 折叠
摘要
Abstract
To solve the problem that traditional MMC based on half-bridge sub-module being incapable of isolating dc fault current, a new topology of self-blocking sub-module is proposed in this paper. Four types of self-blocking sub-modules that require simultaneously blocking the IGBTs are firstly proposed. To eliminate the requirements on simultaneously blocking, two types of enhanced self-blocking sub-modules are further proposed. To further reduce the used power electronic devices, a hybrid converter combines enhanced self-blocking sub-modules with traditional half bridge sub-modules is then proposed. Feasibility of the proposed sub modules and hybrid converter are verified by simulations in PSCAD/EMTDC. The proposed hybrid converter is able to isolate dc fault current with only 25% increase of the used power electronic device compared with traditional half-bridge cell MMC which is not able to isolate dc fault current.关键词
模块化多电平换流器/全桥子模块/箝位双型子模块/新型子模块/隔离直流故障/混合型换流器Key words
modular multilevel converter (MMC)/full-bridge sub-modules/clamp-double sub-modules/innovative sub-modules/DC fault blocking/hybrid converter分类
信息技术与安全科学引用本文复制引用
向往,林卫星,劲宇,程时杰..一种能够阻断直流故障电流的新型子模块拓扑及混合型模块化多电平换流器[J].中国电机工程学报,2014,(29):5171-5179,9.
