中国电机工程学报2017，Vol.37Issue(23)：6801-6810,10.DOI:10.13334/j.0258-8013.pcsee.162109
一种具备直流故障穿越能力的低损耗MMC拓扑
A Novel MMC Topology With Lower Power Loss and DC Fault Ride-through Capability
摘要
Abstract
Multilevel modular converter (MMC) has been widely applied in high voltage direct current (HVDC) area.The clearance of DC fault is one of the main challenges to MMC-HVDC,and the existing hybrid HVDC circuit breaker is still not mature.Firstly,the existing MMC topologies were analyzed,then a novel MMC topology with lower power loss and DC-fault ride-through capability was proposed.Secondly,the DC fault ride-through mechanism of proposed topology was investigated,and a two-terminal MMC-HVDC adopting the presented topology was built in PSCAD/EMTDC.The capital cost and power loss among different MMC topologies were compared.The result shows that the proposed topology not only has the ability to block the DC-fault current,but also shows lower capital cost and power loss.关键词
模块化多电平换流器/直流侧故障/故障穿越/功率损耗/经济性Key words
multilevel modular converter (MMC)/DC faults/fault ride-through/power loss/economy分类
信息技术与安全科学引用本文复制引用
李帅,郭春义,赵成勇,许建中..一种具备直流故障穿越能力的低损耗MMC拓扑[J].中国电机工程学报,2017,37(23):6801-6810,10.基金项目
中央高校基本科研业务费专项资金资助(2016MS07) （2016MS07）
国家自然科学青年基金项目(51507060).Fundamental Research Funds for the Central Universities (2016MS07) （51507060）
Project Supported by National Natural Science Foundation of China (51507060). （51507060）
