Author/Authors :
Razaz، Mohammad نويسنده Department of Electrical Engineering, Shahid Chamran University of Ahvaz, Iran , , Seifossadat، Seyyed Ghodratollah نويسنده Department of Electrical Engineering, Shahid Chamran University of Ahvaz, Iran , , Razaz، Morteza نويسنده Department of Electrical Engineering, Shahid Chamran University of Ahvaz, Iran , , Joorabian، Mahmood نويسنده Faculty of Engineering, Shahid Chamran University, Ahwaz, Iran ,
Abstract :
This paper provides an algorithm of fault resistance compensation for digital ground distance relay considering the voltage and current transformer effects. Performance of the conventional ground distance relaying manner is adversely affected by different ground faults and also typical type, called a simultaneous open conductor and ground fault. The proposed scheme by using local-end data only, has shown satisfactory performances under wide variations in fault location, with different values of fault resistance and having positive and negative of power transfer angle. The presented method which has been carried out on the IEEE 14 bus benchmark is executed in PSCAD/EMTDC and MATLAB software, and the results show the accurate performance of mentioned configuration.
