DESIGN & ANALYSIS OF AN IMPROVED FAULT LOCALIZATION SCHEME FOR SECONDARY SUBSTATION AUTOMATION

The increasing penetration of inverter-based, volatile dispersed generation units in distribution level creates technical challenges for a secure and reliable power supply. The modernization of secondary substation technology represents a prominent technical solution in order to master the effects of this trend. This paper presents the joined research results of an intelligent secondary substation design including improved methods for voltage control, fault detection and localization. Thereby the work’s focus is on the novel secondary substation’s characteristic function and its impact on the fault clearance process in medium voltage level. Simulation results emphasize its benefits for modern grid operation.