A monitoring and early warning system and method for the tripping and closing circuit of a substation

Abstract

The invention discloses a substation tripping and closing circuit monitoring and early warning system and method. The substation tripping and closing circuit monitoring and early warning system of the present invention includes a sensor module, a data conversion device, an acquisition unit and a management unit, and the sensor module is used for collecting tripping and closing circuits. Loop current, DC power loop current, and temperature and humidity data are gathered to the management unit step by step through the data conversion device and the acquisition unit, and the management unit is used to perform monitoring and early warning. The present invention collects the monitoring current of the tripping and closing circuit and the monitoring current of the power supply circuit by installing sensor modules in the tripping and closing circuits and the power supply circuit at each interval of the substation, converts them into SV signals and GOOSE signals through the data conversion device and transmits them to the acquisition unit, and centrally processes them The final data is transmitted to the management unit for tripping and closing circuit monitoring and early warning business operations. The invention can realize real-time monitoring, fault alarm and fault location of the substation tripping and closing circuit, and improves the reliability of substation operation.

Description

technical field [0001] The invention relates to the technical field of detection of tripping and closing circuits of intelligent substations, in particular to a monitoring and early warning system and method for tripping and closing circuits of substations. Background technique [0002] The safety and reliability of the tripping and closing circuit in the substation is of great significance to the normal operation of the circuit breaker. However, the existing secondary system of the substation lacks a monitoring and early warning device for the tripping and closing circuit, lacks a real-time monitoring method for the state of the tripping and closing circuit, and does not have an effective fault alarm and abnormal positioning method when the circuit is abnormal. Therefore, in order to improve the monitoring and early warning of the tripping and closing circuit, it is of great significance to study the fault alarm and abnormal location method of the tripping and closing circu...

AI Technical Summary

Problems solved by technology

However, the existing substation secondary system lacks a monitoring and early warning device for the tripping and closing circuit, lacks real-time monitoring means for the state of the tripping and closing circuit, and has no effective fault alarm and abnormal location method when the circuit is abnormal.

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