Protection coordination for a distribution system in the presence of distributed generation

Authors : Muhammad YOUSAF, Tahir MAHMOOD

Pages : 408-421

View : 14 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :This paper proposes an effective strategy to overcome the impacts on coordination among protection devices due to distributed generator insert ignore into journalissuearticles values(DG); integration. Increased fault current magnitude and changes in power flow directions are the major impacts imposed by DGs on a typical distribution system. The recloser-fuse coordination is much influenced upon the integration of DGs. The proposed approach presents the rehabilitation of recloser-fuse coordination for post-DG integration effects using the directional properties of a recloser. The simulation results show that coordination among protection devices can be regained using fast operation of the recloser to design a fuse saving scheme in the scenario of temporary fault occurrence. The designed scheme also works satisfactorily for the isolation of a permanently faulted section of the feeder. This technique is verified by simulation results performed on a real 11-kV radial distribution feeder for different fault locations and DG sizes.
Keywords : Protection coordination, distribution generation, directional recloser, relays, fuses, distribution systems