A bus fault diagnosis method, system, readable medium and equipment

Abstract

This disclosure provides a bus fault diagnosis method, system, readable medium and equipment. This disclosure is based on fault recording information, integrates model file information, and analyzes the ID identification and status information of circuit breakers and isolation switches in the file. Map their position status information to the basic model of primary equipment through ID identification to form a primary equipment operation model, obtain the connection relationship between the bus and each connected unit through the primary equipment operation model, and obtain its own current according to the primary equipment ID in the interval Information, and then calculate the differential flow, and automatically diagnose the bus fault. The disclosure solves the drawbacks of manually associating busbar branches in traditional differential flow calculation, not only improves the speed of differential flow calculation at fault time, but also avoids misoperations when manually associating branches, and improves the reliability of busbar fault diagnosis.

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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