Artificial Negative Polarity Thunderstorm Cell Modeling of Nearby Incomplete Upward Discharges’ Influence on Elements of Monitoring Systems for Air Transmission Lines

Abstract

The article represents results of a physical simulation of incomplete upward leader discharges induced on air transmission lines’ elements, using charged artificial thunderstorm cells of negative polarity. The influence of such discharges on closely located model sensors (both of rod and elongated types) of digital monitoring systems, as well as on the models of receiver-transmission systems of local data collection (antennas), was determined. Effect of heterogeneity of electromagnetic field caused by incomplete upward discharges on frequency specter of signals generated on sensors and antennas was estimated. Wavelet analysis was carried out to determine the basic frequency diapasons of such signals. Based on experimental data obtained, suppositions about the extent of influence of nearby incomplete leader discharges on the functioning of currently used systems of transmission lines’ monitoring were made.

The Physical Experimental Modelling of the Formation Processes of Upward Discharges from Grounded Objects in the Artificial Thunderstorm Cell’s Electric Field

“…Physical simulation of the processes of the occurrence of upward discharges of ground objects in the electric field of an artificial thunderstorm cell of negative polarity was performed at the experimental complex "GROZA", which allows the creation of artificial thunderstorm cells (artificial thunderclouds) with a potential of up to 1.5 MV. The characteristics of the experimental complex and the artificial thunderstorm cells created by it are presented in [33,[36][37][38]. The basic scheme of the experimental measuring complex is shown in Figure 1.…”