Over Current Relay coordination in Multiphase Radial Distribution System Integrated with Wind Turbines Based DGs using ETAP

Abstract

This paper gives a power flow and fault analysis approach for tackling over current protection coordination issues in a multiphase unbalanced radial distribution system that incorporates wind turbine generators (WTG). The voltage profile and short circuit levels may be impacted in a number of different ways by the addition of WTG to a radial distribution system. Fault current level fluctuates as a result of fault incidence, which affects the operating time of various protective relays and various distribution system equipment. In order to maximize relay working time and prevent any malfunction operations, it is crucial to calculate and provide methods for protecting relay settings. This suggested method approach is evaluated on lengthy, lightly loaded an unbalanced IEEE 34 bus system. Because a three-phase system can be used to depict a multiphase distribution system, two-phase and single-phase line segments are represented according to their sequence value. The outcomes are analyzed using a simulation in Electrical Transient Analyzer Program (ETAP) and a sequence-based network.