基于差动保护的配电网闭环运行方式探讨

配电网可靠性是衡量一个地区供电水平的重要指标。采用闭环运行方式可以有效提高配电网的供电可靠性。首先，从分布式电源的并网需求和日益提高的供电可靠性要求，阐述了配电网采用闭环运行的驱动力。然后，介绍了配电网闭环运行的关键支撑技术和主要优点，提出了一个具有三层结构的集中式差动保护控制概念和系统架构。最后，分析了配电网采用基于差动保护的闭环运行方式的应用前景。...

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Bibliographic Details
Published in电力系统保护与控制 Vol. 41; no. 3; pp. 102 - 106
Main Author 张项安 张新昌 李卫星 刘星
Format Journal Article
LanguageChinese
Published 许继电气股份有限公司,河南 许昌 461000%哈尔滨工业大学电气工程系,黑龙江 哈尔滨 150001 2013
Subjects
分布式电源
可靠性
差动保护
配电网
闭环运行
差动保护
differential protection
distributed generation
闭环运行
分布式电源
reliability
distribution network
配电网
closed-loop operation
可靠性
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ISSN1674-3415

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Summary:配电网可靠性是衡量一个地区供电水平的重要指标。采用闭环运行方式可以有效提高配电网的供电可靠性。首先，从分布式电源的并网需求和日益提高的供电可靠性要求，阐述了配电网采用闭环运行的驱动力。然后，介绍了配电网闭环运行的关键支撑技术和主要优点，提出了一个具有三层结构的集中式差动保护控制概念和系统架构。最后，分析了配电网采用基于差动保护的闭环运行方式的应用前景。
Bibliography:distribution network; closed-loop operation; differential protection; distributed generation; reliability
Reliability index is an important indicator for the power service level of a distribution system, and it could be highly improved by utilizing the closed-loop operation mode. First, this paper analyzes the drivers of introducing the closed-loop operation mode to distribution systems, including the increasingly growing penetration of distributed energy resources and user＇s requirement for higher power supply reliability. Second, several key supporting technologies and benefits are investigated for the closed-loop operation mode of distribution systems, and a three-level framework is proposed for the centralized differential protection of closed-loop distribution systems. Finally, the paper discusses the prospects of applying the differential protection based closed-loop operation mode to distribution networks
41-1401/TM
ZHANG Xiang-an , ZHANG Xin-chang, LI Wei-xing, LIU Xing （1. XJ Electric Co., Ltd., Xuchang
ISSN:1674-3415