Method and system for modeling associated information topology analysis in power distribution network

A technology of correlating information and power grid topology, applied in the field of power system, can solve the problems of weak analysis ability of power system network topology model, and achieve selective effect

Inactive Publication Date: 2016-11-30
XUJI GRP +3
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a modeling method for topology analysis of associated information in distribution network, which is used to solve the problem of weak analysis ability of power system network topology model

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  • Method and system for modeling associated information topology analysis in power distribution network
  • Method and system for modeling associated information topology analysis in power distribution network
  • Method and system for modeling associated information topology analysis in power distribution network

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Embodiment Construction

[0025] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] The basic method steps of this technical scheme are:

[0027] Step 1. Obtain primary equipment and secondary system information in the distribution network;

[0028] Step 2. Based on the primary equipment information, establish a topological network model of the power grid. The node elements of the topological network model of the power grid include generators, buses, lines and transformers. The branch elements of the topological network model of the power grid are switchgears. The value represents the switchgear state;

[0029] Step 3. Based on the secondary system information and the primary equipment information, an associated information topology network model is established. The node elements of the associated information topology network model are secondary system logic devices, and the branch elements of the associated informa...

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Abstract

The invention relates to a method and a system for modeling associated information topology analysis in a power distribution network. The method comprises the following steps: 1) obtaining primary equipment information and secondary system information in the power distribution network; 2) according to the primary equipment information, establishing a power grid topology network model, wherein the node elements of the network model comprise a generator, a busbar, a circuit and a transformer, and the branch element of the network model is switch equipment; and 3) according to the secondary system information, combining the primary equipment information to establish an associated information topology network model, wherein the node element of the network model is secondary system logic equipment, and the branch element of the network model is the relation between primary equipment and the secondary system logic equipment. According to the method disclosed by the invention, the complicated system information of the power distribution network can be simplified, fault information is quickly and effectively analyzed according to the associated information topology network, and stable operation of an electric power system is guaranteed.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a modeling method and system for topology analysis of associated information in distribution networks. Background technique [0002] The modern power distribution system is constantly developing in the direction of high flexibility, high source-load friendliness, and high intelligent digitalization. Distributed power sources such as renewable energy and electric vehicles are widely connected, and the operation mode of distributed power sources can be switched flexibly. At the same time, microgrid and The deep coupling of AC and DC distribution network caused by the application of DC distribution network makes the topology of distribution network more and more complicated. The traditional distribution network protection powered by a single power supply cannot solve new problems in fault identification, and the direction of network power flow is no longer single, and the dire...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 赵颖科薄志谦王庆平郑灏张明马晓伟杨滢旋杨璐羽
Owner XUJI GRP
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