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A method and device for searching power transmission section between power grids

A technology of grid partition and transmission section, applied in circuit devices, electrical components, AC network circuits, etc.

Active Publication Date: 2021-09-10
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] This application provides a search method for transmission sections between power grid divisions, which solves the problem of the demand for transmission sections existing in the automatic identification system

Method used

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  • A method and device for searching power transmission section between power grids
  • A method and device for searching power transmission section between power grids
  • A method and device for searching power transmission section between power grids

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Embodiment Construction

[0045] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0046] Please see figure 1 , figure 1 It is a flow chart diagram of a search method for power grid inter-regional transmission sections provided by the embodiment of the present application. The following is combined with figure 1 , to describe the method provided in the embodiment of the present application in detail.

[0047] Step S101, setting the connection line of the power grid between the power supply areas in the disconnected state; setting the line with the specified voltage level in the disconnected state...

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Abstract

The invention discloses a search method for a power transmission section between subregions of a power grid, which is characterized in that it comprises: setting the connection line of the power grid between the power supply areas in the disconnected state; setting the line with a specified voltage level in the disconnected state; Each area is searched by topology to form each electrical island, and each electrical island containing a line node of a specified voltage level is judged as a partition; the number of nodes contained in each grid partition is counted, and the threshold of the number of partition nodes is set, according to the The threshold judges whether to merge all the nodes of the electrical island into the electrical island connected to him; search the power transmission lines and input lines of the grid partition, and determine the transmission section of the grid partition according to the judgment conditions of the transmission section, and solve the automatic Identify the demand problem of the transmission section existing in the system.

Description

technical field [0001] The application relates to the field of on-line security and stability calculation and analysis of power systems, in particular to a search method for inter-regional power transmission sections of a power grid, and at the same time relates to a search device for inter-regional power transmission sections of a power grid. Background technique [0002] The power grids in multiple regions of my country's power grid are interconnected to form a large interconnected power grid, and the interconnection lines between different load centers also constitute transmission channels. These transmission channels have a decisive impact on the safety and stability of the entire power grid, and are the key to maintaining the safe and stable operation of the entire system. Therefore, in the process of power system research and analysis, the cross-section is taken as an important focus of research and analysis. [0003] In the daily off-line calculation and analysis, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
Inventor 吕颖王轶禹田芳冯长有侯金秀于之虹鲁广明史东宇马超姚伟锋谢昶韦尊戴红阳康建东解梅高波张放张磊
Owner CHINA ELECTRIC POWER RES INST
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