Comprehensive fault diagnosis instrument and fault diagnosis method for secondary equipment of intelligent substation

Abstract

The invention discloses an intelligent substation secondary equipment comprehensive fault diagnosis instrument and a fault diagnosis method, and belongs to the technical field of intelligent substations. The fault diagnosis instrument is of a portable case structure and comprises a hardware system; the hardware system comprises an upper computer module for realizing man-machine interaction, a signal acquisition module for performing signal acquisition on secondary equipment and a power supply module for supplying power to the system; the fault diagnosis method comprises the steps that an SCD file is imported, and an operation model is established; collecting process layer equipment data; acquiring switch data; and performing fault diagnosis and outputting. According to the method, the normal connection section link of the physical link is positioned by diagnosing the hardware module fault and the software fault of the secondary equipment of the intelligent substation, so that field operation and maintenance personnel can conveniently and timely perform fault judgment on the operation state of the whole secondary equipment and the physical link.

Description

technical field [0001] The invention relates to the technical field of intelligent substations, in particular to an intelligent substation secondary equipment comprehensive fault diagnosis instrument and a fault diagnosis method. Background technique [0002] Smart substations include intelligent primary equipment, electronic transformers, and optical cable connections to replace cables to form a process layer network. This shared network communication method makes the interconnection between devices no longer simple and transparent, and the original physical connection becomes a virtual terminal. The connection makes it extremely difficult for the on-site operation and maintenance personnel to find the fault, or even impossible to start. When there is a fault in the substation, it is an indispensable part to maintain the stable and safe operation of the substation to diagnose the fault in time, find out the cause of the fault and eliminate the fault. [0003] The process l...

AI Technical Summary

Problems solved by technology

[0002] Smart substations include intelligent primary equipment, electronic transformers, and optical cable connections to replace cables to form a process layer network. This shared network communication method makes the interconnection between devices no longer simple and transparent, and the original physical connection becomes a virtual terminal. connection, making it extremely difficult for on-site operation and maintenance personnel to find faults, or even impossible to start

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