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Method and device for numbering nodes in electrical power system

A power system and node technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of not being able to effectively reduce the amount of computation, and achieve the effect of reducing the amount of computation

Inactive Publication Date: 2017-06-09
STATE GRID BEIJING ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for numbering nodes in a power system, to at least solve the technical problem that the method for numbering nodes in the related art cannot effectively reduce the amount of computation

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  • Method and device for numbering nodes in electrical power system
  • Method and device for numbering nodes in electrical power system
  • Method and device for numbering nodes in electrical power system

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Embodiment Construction

[0028] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0029] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a method and device for numbering nodes in an electrical power system. The method is used for numbering nodes in an electrical power system, and comprises the following steps: acquiring a reduced graph of the network of the electrical power system; converting the reduced graph of the electrical power system to obtain an undirected graph of the electrical power system; and numbering nodes in the undirected graph by a graph partitioning algorithm. The method and device can be used for solving the technical problem that a method for numbering nodes in related technologies cannot effectively reduce the computational burden.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a node numbering method and device in a power system. Background technique [0002] The network of power system is a kind of high-dimensional undirected and unscaled network. Compared with the total number of nodes, the average node degree of the power system network is relatively low, and its average node degree is usually between 1.8-5.82, and only a very small number of nodes have higher node degrees. This means that the power system network is a very sparse network. Therefore, using sparse technology in the power flow calculation of the power system can greatly improve the calculation speed. In the triangular decomposition of a sparse matrix, injection elements are often generated, which weakens the sparsity of the matrix and slows down the calculation speed. If the matrix can be optimally numbered for nodes, and no injected elements can be generated when the sparse matrix is ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q50/06
CPCG06F30/18G06Q50/06
Inventor 任雪桂尹璐贾鸥莎刘丁华余潇潇唐灿
Owner STATE GRID BEIJING ELECTRIC POWER