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基于故障阻断型换流器的直流配电网故障处理技术综述
作者:
作者单位:

智能电网教育部重点实验室(天津大学),天津市 300072

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基金项目:

国家重点研发计划资助项目(2018YFB0904600);国家自然科学基金资助项目(51677125)。


Overview on Fault Processing Technology for DC Distribution Network Based on Fault Blocking Converter
Author:
Affiliation:

Key Laboratory of the Ministry of Education on Smart Power Grids (Tianjin University), Tianjin 300072, China

Fund Project:

This work is supported by National Key R&D Program of China (No. 2018YFB0904600) and National Natural Science Foundation of China (No. 51677125).

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    摘要:

    故障的快速隔离与恢复是保障直流配电网供电可靠性的关键问题,利用具有故障自清除能力的换流器和隔离开关配合实现故障电流的阻断与隔离是直流配电网的重要发展方向之一。文中从继电保护与故障定位、故障隔离及故障恢复3个方面,针对基于阻断型换流器的直流配电网故障处理技术的研究现状进行了归纳和总结,梳理了基于阻断型换流器的直流配电网故障处理技术存在的问题和难点,并对该研究方向的关键技术发展趋势进行了展望。

    Abstract:

    The isolation and recovery of faults is the key issue to guarantee the supply reliability in the DC distribution network. Using converters with fault clearance capability and isolating switches to achieve fault current blocking and isolation has become an important development direction of DC distribution network. From the three aspects of protection technology and fault location, fault isolation and fault recovery, this paper summarizes the research status of fault processing technology based on blocking converters in the DC distribution network. Then the problems and difficulties of fault processing technology based on blocking converters in the DC distribution network are sorted out. Finally, the development trend of key technologies in this research direction is prospected.

    图1 FBSM故障阻断原理Fig.1 Fault blocking principle of FBSM
    图2 具备故障阻断能力的子模块Fig.2 Sub-module with fault blocking capability
    图3 具备故障阻断能力的隔离型DC/DC换流器Fig.3 Isolated DC/DC converter with fault blocking capability
    图4 具备故障阻断能力的非隔离型DC/DC换流器Fig.4 Non-isolated DC/DC converter with fault blocking capability
    表 1 成本及对称性对比Table 1 Cost and symmetry comparison
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引用本文

李博通,杨昕陆,李斌,等.基于故障阻断型换流器的直流配电网故障处理技术综述[J].电力系统自动化. DOI:10.7500/AEPS20190418004.

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  • 收稿日期:2019-04-18
  • 最后修改日期:2020-01-21
  • 录用日期:2019-08-20
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