电力系统及其自动化学报2019，Vol.31Issue(5)：143-150,8.DOI:10.3969/j.issn.1003-8930.2019.05.022
具备直流故障自清除能力的新型子模块拓扑
Novel Sub-module Topology with DC Fault Self-clearance Capability
薛士敏 1崔淼 1廉杰 1范勃旸 1齐金龙2
作者信息
- 1. 智能电网教育部重点实验室(天津大学),天津 300072
- 2. 智能电网教育部重点实验室(天津大学),天津 300072
- 折叠
摘要
Abstract
The development prospect of high voltage direct current transmission system based on modular multilevel converter(MMC)is broad. However,the traditional half-bridge MMC sub-module has a lower fault ride through capa?bility. Accordingly,a sub-module topology with DC fault self-clearance capability is proposed at first,which can block the conduction of the diode and cut off the fault current path using the capacitance voltage of reverse access sub-mod?ules under DC fault. Second,the costs of construction and operation loss of several common topologies with fault self-clearance capability are analyzed and compared. Finally,to facilitate the transformation of completed projects,a modu?lation control strategy for the novel sub-module topology is proposed. The correctness and effectiveness of the proposed topology are verified based on PSCAD electromagnetic transient simulation software.关键词
模块化多电平换流器/子模块拓扑结构/直流故障自清除/经济性/控制策略Key words
modular multilevel converter(MMC)/sub-module topology/DC fault self-clearance/economical efficien⁃cy/control strategy分类
信息技术与安全科学引用本文复制引用
薛士敏,崔淼,廉杰,范勃旸,齐金龙..具备直流故障自清除能力的新型子模块拓扑[J].电力系统及其自动化学报,2019,31(5):143-150,8.
