Power grid topology analysis method based on Gaussian elimination algorithm

A technology of Gaussian elimination and power grid topology, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve problems such as unsatisfactory real-time topology functions and poor performance, and achieve the effect of strong adaptability and simple implementation process

Inactive Publication Date: 2018-10-12
SHANDONG UNIV
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This topology analysis method has poor perform...

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  • Power grid topology analysis method based on Gaussian elimination algorithm
  • Power grid topology analysis method based on Gaussian elimination algorithm
  • Power grid topology analysis method based on Gaussian elimination algorithm

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[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0041] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...

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Abstract

The invention discloses a power grid topology analysis method based on Gaussian elimination algorithm. The power grid topology analysis method comprises the following steps: applying a Gaussian elimination technology to topological structure analysis, and carrying out edge weight taking on plant-station topological structures to form incidence matrixes thereof; for all plant-station topological structures, and recording the dependence mapping relationship of electric nodes, logic nodes and system nodes according to the changes of node number accumulative pointers so as to form incidence matrixes between system nodes and impedance elements; carrying out incidence matrix elimination, topological matrix front substitution and back substitution operation on the incidence matrixes of the plant-station topological structures and the incidence matrixes of system network architectures, and carrying out analysis of the corresponding topological structures; and according to the analysis result,determining the quantity of electric power system sub-systems and the equivalent calculation model of each sub-system. The power grid topology analysis method has the advantages of high speed and reliability, online function of plant-station topology, power grid topology and local topology can be realized, the calculation speed is high, and the method is applicable for the requirements such as real-time state estimation and online load flow calculation.

Description

technical field [0001] The invention relates to a network topology analysis method based on a Gaussian elimination algorithm. Background technique [0002] Topological analysis is based on the status of components, such as the open and closed status of switches and switches, the operation and shutdown status of equipment, and the analysis of the connectivity of the transmission network, thus forming an equivalent analysis model. [0003] Traditional power system topology analysis methods generally express the topology structure as a linked list relationship, and use depth-first or breadth-first search algorithms to analyze the connectivity of nodes. This topology analysis method has poor performance and cannot satisfy real-time topology functions. Contents of the invention [0004] In order to solve the above problems, the present invention proposes a network topology analysis method based on Gaussian elimination algorithm. The present invention uses the rules of generali...

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 孟昭勇
Owner SHANDONG UNIV
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