Bus fault diagnosis method and system, readable medium and equipment

Abstract

The invention provides a bus fault diagnosis method and system, a readable medium and equipment. The method comprises the steps: taking fault recording information as the basis, fusing model file information, analyzing the ID and state information of a circuit breaker and an isolation knife switch in a file, mapping the position state information to a primary equipment basic model through an ID identifier to form a primary equipment operation model, obtaining the connection relationship between the bus and each connected unit through the primary equipment operation model, obtaining the currentinformation of the bus according to the primary equipment ID in the interval, further carrying out differential current calculation, and automatically diagnosing the bus fault. According to the invention, the defect that the bus branch is manually associated during traditional differential current calculation is overcome, the differential current calculation speed at the fault moment is increased, the conditions of misoperation and the like during branch manual association are avoided, and the reliability of bus fault diagnosis is improved.

Description

technical field [0001] The disclosure belongs to the technical field of power systems, and relates to a bus fault diagnosis method, system, readable medium and equipment. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] As a member of the primary equipment of the power grid, the busbar plays the role of collecting and distributing electric energy, and is a very important equipment in the power system. When a bus failure occurs, if the failure cannot be removed in time, it will cause serious damage to many electrical equipment and seriously affect the stability of the power system. In severe cases, it will cause large-scale power outages and even lead to the collapse of the power system. Therefore, the requirements for busbar protection in actual operation are very high, and they need to have high safety and reliability, and they also have...

AI Technical Summary

Problems solved by technology

[0007] (3) For the small difference protection, the topological relationship between the incoming and outgoing lines and the busbar cannot be judged only by the position of the circuit breaker. Calculation of Differential Differential Current

[0009] To sum up, the traditional method of manually adjusting the topology model of the power grid does not meet the requirements of the power grid to quickly obtain fault diagnosis results.

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