Software Design Of Partial Discharge Monitoring System For GIS

Enclosed combination Gas Insulated electrical appliances(Gas Insulated Switchgears, GIS) for its advantages such as high reliability and good safety has been widely used in modern power system, however, due to the GIS insulation defects will produce partial discharge, even insulation breakdown, eventually resulting in failure of electric power, therefore, the need for real-time online monitoring of GIS, it has become an increasingly important research subject.Based on GIS partial discharge monitoring system hardware platform, the thesis designs a monitoring system software with 3D display functions, detailed design of data acquisition, status detection, data processing, data display, data storage, data query, partial discharge type recognition, fault alarm and positioning module, collected 8 roads 1 MHZ sampling rate of GIS partial discharge signals, through effective amplitude noise reduction processing, calculation, discharge frequency statistics, etc., to be three dimensional, two dimensional, elliptical showed 8 railway administrations and signal PRPS and PRPD patterns map, and channels of the partial discharge and discharge type of alarm display.For convenient observation, can undertake full screen on the specified channel, to rotating display of 3D map.Implements the storage, analysis was carried out on the acquisition of partial discharge signals, playback, etc.GIS partial discharge monitoring system for the design of the paper were tested, the results show that the system work stable and reliable, has reached the expected goal.