Island dividing method and device for power distribution network

An island division and distribution network technology, applied in the field of power system, can solve the problems of not considering the electrical distance, impedance size, and failing to reflect the characteristics of the power system

Inactive Publication Date: 2016-11-02
HUNAN UNIV +2
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  • Abstract
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Problems solved by technology

[0006] The inventor found in the research that although the above algorithm can solve the islanding problem of the distribution network, the above algorithm does not take into account factors such as electrical distance and impedance, and fails to reflect the characteristics of the power system

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  • Island dividing method and device for power distribution network
  • Island dividing method and device for power distribution network
  • Island dividing method and device for power distribution network

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[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making...

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Abstract

The invention provides an island dividing method and a device for a power distribution network. The method comprises the steps of determining the topological structure of the power distribution network according to the power supply relationship among each distributed power supply and each user in the power distribution network, wherein the distributed power supply and the user are both nodes in the topological structure; simplifying the nodes of the determined topological structure; dividing islands of the simplified topological structure according to an intelligent water droplets algorithm integrated with the equivalent electrical distance to obtain a plurality of islands; verifying and correcting the plurality of obtained islands to determine a final island division scheme. According to the technical scheme of the method and the device in the invention, the equivalent electrical distance is integrated, and the factors of electrical distance, impedance and the like are considered. Therefore, the characteristics of a power system are fully embodied.

Description

technical field [0001] The present invention relates to the technical field of power systems, in particular to a method and device for dividing islands of distribution networks. Background technique [0002] Distributed Generations (DG for short) has become a hot spot in energy research and application because of its unique environmental protection and economy. With the increasing penetration of distributed power sources, the power supply structure of the distribution network has become more complex, gradually evolving into a network in which multiple power sources and multiple users are interconnected. In the distribution network, the distributed power supply can be flexibly connected to the grid or run in an island. In the island operation, the distributed power supply supplies power for part of the load, which can give full play to the potential of the distributed power supply. [0003] The standard IEEE1547-2003 for distributed power generation access to power systems e...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 彭敏放张海艳朱亮车红卫刘正谊侯婧媖吴辉李正
Owner HUNAN UNIV
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