电器与能效管理技术 ›› 2020, Vol. 591 ›› Issue (6): 65-70.doi: 10.16628/j.cnki.2095-8188.2020.06.013

• 配网技术与系统 • 上一篇    下一篇

基于MMC的配电网交流前保护区单相接地故障分析

肖小兵, 付宇, 张锐锋, 龙秋风, 郑友卓, 刘安茳, 张洋   

  1. 贵州电网有限责任公司 电力科学研究院,贵州 贵阳 550000
  • 收稿日期:2020-01-21 出版日期:2020-06-15 发布日期:2020-07-07
  • 作者简介:肖小兵(1986—),男,高级工程师,主要从事配电技术研究。
    付宇(1983—),男,高级工程师,主要从事配电技术研究。
    张锐锋(1968—),男,教授级高级工程师,主要从事配电技术研究。
  • 基金资助:
    南方电网科技项目(066600KK52170087)

Analysis of Single-Phase Grounding Fault in Pre-AC Protection Zone of Distribution Network Based on MMC

XIAO Xiaobing, FU Yu, ZHANG Ruifeng, LONG Qiufeng, ZHENG Youzhuo, LIU Anjiang, ZHANG Yang   

  1. Guizhou Power Grid Co.,Ltd.,Electric Power Research Institute,Guiyang 550000,China
  • Received:2020-01-21 Online:2020-06-15 Published:2020-07-07

摘要: 基于模块化多电平换流器(MMC)在配电网中良好的适应性,对基于MMC的配电网建模过程、故障仿真、故障特性分析和保护配置方案进行研究,包括配电装置的拓扑结构和仿真模型的搭建。以故障仿真得出的故障特性结果为依据,设计主保护与后备保护方案,以便对配电网进行更加有效的保护。

关键词: 模块化多电平换流器, 单相接地故障, 仿真分析, 保护配置方案

Abstract: The modular multilevel converter(MMC) shows good adaptability in distribution network with its unique structural advantages and has been applied more and more widely.In this paper,the distribution network modeling process based on MMC,fault simulation,fault feature analysis and protection configuration scheme were studied,including the topological structure of distribution equipment and the construction of the simulation model.Based on the result of failure characteristics and,the main protection and backup protection scheme was designed,so that to more effectively protect the power distribution network.

Key words: modular multilevel converter(MMC), single-phase grounding fault, simulation analysis, protection configuration scheme

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