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基于二极管的直流配电系统故障分区方案及保护策略
作者:
作者单位:

1. 智能电网教育部重点实验室, 天津大学, 天津市 300072;2. 电网安全与节能国家重点实验室(中国电力科学研究院有限公司), 北京市 100192

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基金项目:

电网安全与节能国家重点实验室开放基金资助项目(JBB51201801595)


Diode Based Fault Zone Partition Scheme and Protection Strategy in DC Distribution System
Author:
Affiliation:

1. Key Laboratory of the Ministry of Education on Smart Power Grids, Tianjin University, Tianjin 300072, China; 2. State Key Laboratory of Power Grid Safety and Energy Conservation (China Electric Power Research Institute), Beijing 100192, China

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    摘要:

    直流故障处理技术包括故障电流清除、故障分区和故障定位等,是直流配电系统广泛工程应用的关键问题。针对采用故障自清除换流器消除故障电流的直流配电系统,为解决健全区失电问题,提出基于二极管的自动故障分区方法和故障定位方法,以及适用于直流配电系统的集成保护方案。首先,介绍了基于二极管故障分区方法的基本原理及其附加硬件要求。其次,针对二极管故障分区的故障特征,提出相应的集成保护方案和故障定位方法。最后,在PSCAD/EMTDC平台搭建五端直流配电系统,通过仿真验证所提方案的有效性。

    Abstract:

    Fault processing technology including fault current clearing, fault zone partition and fault location is the key issue of the widely engineering application of DC distribution system. In order to solve the problem of power loss in the sound zone, a diode based automatic fault zone partition method, a fault location method and an integrated protection scheme are proposed for the DC distribution system that uses the fault self-clearing converter to eliminate the fault current. Firstly, the basic principle of diode based fault zone partition method and its additional hardware requirements are introduced. Then, the overall protection scheme and fault location method are proposed considering the fault characteristics of diode based fault partition. Finally, a five-terminal DC distribution system is built on the PSCAD/EMTDC platform to verify the effectiveness of the proposed scheme.

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李斌,叶仕磊,温伟杰,等.基于二极管的直流配电系统故障分区方案及保护策略[J].电力系统自动化,2019,43(23):99-106. DOI:10.7500/AEPS20190420005.
LI Bin, YE Shilei, WEN Weijie,et al.Diode Based Fault Zone Partition Scheme and Protection Strategy in DC Distribution System[J].Automation of Electric Power Systems,2019,43(23):99-106. DOI:10.7500/AEPS20190420005.

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历史
  • 收稿日期:2019-04-20
  • 最后修改日期:2019-10-30
  • 录用日期:2019-09-10
  • 在线发布日期: 2019-10-29
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