Investigating the effect of DG infeed on the effective cover of distance protection scheme in mixed-MV distribution network

Abstract

The environmental and economic features of renewable energy sources have made it possible to be integrated as Distributed Generation (DG) units in distribution networks and to be widely utilized in modern distribution systems. The intermittent nature of renewable energy sources, altering operational conditions, and the complex topology of active distribution networks makes the level of fault currents significantly variable. Thus, the use of distance protection scheme instead of conventional overcurrent schemes offers an appropriate alternative for protection of modern distribution networks. In this study, the effect of integrating multiple DG units on the effective cover of distance protection schemes and the coordination between various relays in the network was studied and investigated in radiology and meshed operational topologies. Also, in cases of islanded and grid-connected modes. An adaptive distance scheme has been proposed for adequate planning of protection schemes to protect complex networks with multiple distribution sources. The simplified simulated network implemented in NEPLAN represents a benchmark IEC microgrid. The comprehensive results show an effective protection measure for secured microgrid operation.Article History: Received October 18th 2017; Received in revised form May 17th 2018; Accepted July 8th 2018; Available onlineHow to Cite This Article: Saad, S.M., Naily, N.E. and Mohamed, F.A. (2018). Investigating the Effect of DG Infeed on the Effective Cover of Distance Protection Scheme in Mixed-MV Distribution Network. International Journal of Renewable Energy Development, 7(3), 223-231.https://doi.org/10.14710/ijred.7.3.223-231

Methods for Fault Location in High Voltage Power Transmission Lines: A Comparative Analysis

“…The new technique for online tracking of fault location in distribution networks was introduced in Ahmed et al (2021) to enhance system reliability and continuity of supply. Based on two-end measurements, Christos et al (2022) proposed the two formulations of fault location algorithm which was appropriate for unbalanced medium voltage overhead distribution systems of radial network with or without distributed generations (Khoa, Van, Hung and Tuan, 2022;Saad et al 2018). The fault location algorithm based on synchronous phasor measurement for shunt-compensated lines under dynamic conditions was proposed to overcome the uncertainties in the controller parameters of the shunt compensator device (Deng et al 2022;Khoa et al 2017).…”

Design and Implementation of Real-time Fault Location Experimental System for Teaching and Training University Students

“…Several methods have been developed to locate the fault in transmission and distribution lines [7][8][9][10][11]. The method based on reactance measurement has been proposed to locate a fault on overhead transmission lines of alternating current electrified railway [12].…”