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Abstract:
模块化多电平换流器(modular multilevel converter,MMC)在直流电网中具有较大的应用潜力.当前各类MMC拓扑中,半桥型MMC具有最佳经济效益,但缺乏直流故障清除能力.针对柔性直流架空线路频发的瞬时性直流故障,本文提出了一种模块化多电平混合旁路直流故障隔离方案.当直流侧发生故障时,导通旁路晶闸管,利用避雷器去除桥臂剩余电流并用快速机械开关迅速隔离直流线路.混合旁路故障隔离方案能够快速隔离换流站与直流线路,并可以在隔离后迅速起动换流器做STATCOM运行.通过在PSCAD/EMTDC建立双端柔性直流输电仿真模型.
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电气技术
ISSN: 1673-3800
CN: 11-5255/TM
Year: 2017
Issue: 11
Page: 39-43
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 4
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