Analysis of LLS performance: Comparison of different central processors

Lightning Location Systems (LLS) data are important source to characterize lightning incidence considering extensive regions and allowing different analysis related to power system performance and protection actions against lightning incidence on transmission lines and distribution routes. After a recent upgrade of LLS central processor in Minas Gerais State, a performance analysis was done. The authors analyzed the improvements on location accuracy and peak current estimate of the LLS central processor. In order to perform it, two different reprocessing were done using the same database of sensor reports. So a comparison between lightning location data obtained by using of two different central processors is presented. Also lightning currents directly measured at Morro do Cachimbo Station (MCS) was used as reference data.