Substation Equipment Diagnosis Method and System

Abstract

The invention provides a substation equipment diagnosis method and system. A substation is divided into a station, voltage classes, intervals and primary equipment, a physical model is built, a substation network model is built according to an electrical connection relation of devices in the substation, then the substation physical model and the substation network model are integrated to obtain a substation device mode, and finally, diagnosis is conducted on devices in the substation according to the substation device model. In the whole process, good level division is conducted on the whole substation, models of all the levels are built according to the level division respectively, furthermore, the electrical connection relation of all the devices in the substation is considered, the types of the devices and the electrical connection relation in the substation are considered comprehensively, mutual influences of all the devices in the substation are fully considered, both the device physical model and the network model are considered, comprehensive model data are provided for device state analysis and fault diagnosis, and precise diagnosis can be conducted on the devices of the substation.

Description

technical field [0001] The invention relates to the technical field of substation detection, in particular to a substation equipment diagnosis method and system. Background technique [0002] In the power grid, the substation is a very critical component. Whether the substation can operate normally directly affects the normal and safe operation of the power grid. At the same time, the substation is an extremely complex system. There are many factors for the normal operation of the substation, so in order to ensure the safe operation of the power grid, we need to detect the equipment in the substation. [0003] At present, in the maintenance, status evaluation and self-diagnosis analysis of substation equipment, only a single equipment is analyzed, and a preliminary model of the equipment is established. Interaction of devices. [0004] In the actual situation, the various equipment in the substation work together to ensure the normal operation of the entire substation. The...

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Problems solved by technology

[0005] Based on this, it is necessary to provide a diagnostic method and system for substation equipment with accurate diagnostic results to ensure the safety and normal operation of the substation in view of the large error in the existing substation equipment diagnosis method and the serious problem of the normal operation of the substation.

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