GIS internal bus operating temperature online monitoring system and method based on acoustic surface wave technology

Abstract

The invention discloses a GIS internal bus operating temperature online monitoring system and method based on the acoustic surface wave technology. The system comprises a collector and an SAW temperature sensor. The collector is installed on a shell of a gas insulating switch. A bus is arranged in the shell of the gas insulating switch. The SAW temperature sensor is a passive wireless temperature sensor. The SAW temperature sensor is installed at the position of a contact of the bus. The collector is used for transmitting radio frequency signals to the SAW temperature sensor to serve as drive signals of the SAW temperature sensor. By means of the collector and the SAW temperature sensor, the operating temperature of the bus in the gas insulating switch can be monitored. The system fully utilizes the characteristic of the acoustic surface wave technology, and achieves online monitoring of the operating temperature of the insulating switch in a GIS on the premise of ensuring the insulating performance in the GIS. The invention discloses the monitoring method.

Description

technical field [0001] The invention relates to an on-line monitoring system and method for monitoring the operating temperature of a GIS internal high-voltage conductor based on surface acoustic wave technology, in particular to an online monitoring system and method for monitoring the operating temperature of a GIS internal busbar based on surface acoustic wave technology. Background technique [0002] Gas Insulated Switchgear (GIS for short) has strict processing technology and advanced technology. It uses SF6 gas as the insulating medium and has good breaking capacity, insulation performance and arc extinguishing performance, as well as long maintenance period, low failure rate and low maintenance cost. It is widely used in power systems due to its advantages of less space and small footprint. [0003] However, when the internal high-voltage conductor contacts in the GIS equipment are in poor contact, due to the large contact resistance, overheating will occur when the l...

AI Technical Summary

Problems solved by technology

[0009] In recent years, the research and application of Surface Acoustic Wave (SAW) technology has been quite mature and extensive. However, so far, the real device and method for online monitoring the temperature of high-voltage conductors inside GIS equipment using passive wireless technology It has not yet appeared in the power industry at home and abroad

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