Power grid weak link comprehensive recognition method

Abstract

The invention discloses a power grid weak link comprehensive recognition method. The method comprises the steps that first, a power grid IEEE CDF data model is built according to power grid CIM model data, telemetering data and telecommand data; second, according to the power grid IEEE CDF data model, Buses and transformer type Branches are divided into a plurality of sets according to the information of the power station which the Buses and the transformer type Branches belong to; third, according to the power grid IEEE CDF data model, a power grid topology is divided into a plurality of sub-topologies according to different voltage levels; new sub-topologies are built to replace the sub-topologies in the third step; fourth, according to the new sub-topologies, the power station which may fully stop because of a single line fault is recognized; the power station which may fully stop because of a single bus fault is recognized; the power station which may fully stop because of a single transformer fault is recognized. According to the power grid weak link panoramic recognition method, weak links existing in a power grid can be recognized comprehensively, early warning can be carried out on the weak links, dispatchers and operators can be assisted in comprehensively sensing potential safety problems of power grid operation so as to take control measures in time to illuminate risks, and safe and stable operation of the power grid is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of power grid topology analysis, and in particular relates to a method for panorama identification of weak links in a power grid. Background technique [0002] There are some plants and stations in the power grid that are in the hub position, which play a key role in the power grid, and need to be paid attention to. Once a plant or station is completely shut down, it may cause the entire load of the power grid in the area to be lost or the power of the whole network will not be balanced, causing serious damage. Power outages affect the normal order of society. Therefore, it is generally required that plants and stations must at least meet the N-1 condition. However, when there are too many maintenance equipment or equipment failures in the power grid, some plants and stations may have a single line, single main transformer or single busbar, and there will be a grid safety accident. Hidden dangers need to be...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned technical problems existing in the prior art, the purpose of the present invention is to provide a method for panoramic identification of weak links in the power grid, which can comprehensively identify power stations that may be completely shut down due to a single equipment failure. Panoramic identification and early warning of weak links to help dispatchers fully perceive potential security issues in power grid operation, so as to collect control measures in time to eliminate risks and ensure safe and stable operation of the power grid

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