Development of Wide-Area Protection and Coordination for Electrical Transmission Systems with Distributed Generation

Abstract

This research presents a computational tool for development of Wide-Area Protection and Coordination (WAPC) for electrical power transmission systems. This tool could be used to clarify the protection relays miscoordination. This tool was designed by developing DIgSILENT Programing Language (DPL) script, which is build-in function in DIgSILENT PowerFactory v.2018 software. The proposed tool has been applied to the Provincial Electricity Authority (PEA)’s 115 kV electrical transmission systems. Moreover, the existing transmission systems with distributed generation (DG) have been studied. In this paper, it will be shown the development of WAPC tool can help the protection relay engineer to set-up the relays correctly, effectively and decreased the man-day time of engineers.