IJSR - International Journal of Scientific Research

Ahmed R AbulWafa; Doaa Adel Sabry; Hesham K.Temraz

Volume : VIII, Issue : VIII, August - 2019

Optimal Power Restoration in primary Distribution Network Considering Optimal Allocation of Remote Controlled Switches.

Ahmed R Abulwafa, Doaa Adel Sabry, Hesham K. Temraz

Abstract :

This paper presents a novel modified method to identify the optimal power restoration on distribution system for improving the grid reliability. A popular strategy involves the placement of protective devices, switching devices, and its decision action plays a critical role in the distribution system restoration plan for improving reliability. In the proposed method, Remote control switches (RCS) are performed on a feeder scheme with proper placement to minimize the outage times. The main goal of this paper is solving restoration problem to restore a maximum load and minimize energy not supplied (ENS); Thereby, giving optimal allocations and least number of switching pairs necessary for system restoration. The priority for power restoration is provided to critical consumers such as hospitals, military services, call centers, water station plants, fire stations and largest pockets of customers. Power restoration steps are achieved according to progressive investment capability, from fault detection, fault isolation then power restoration. The objective of this paper is to analyze power restoration problem solved after a complete or partial blackout or after any planned outage and make sure that investment yields the most beneficial return. This paper describe a methodology simulation associated with RCS carried out on a part of benchmark medium voltage radial distribution models and a part of real MV distribution network developed in Dig–SILENT Power Factory software (DSL). The simulation focus on two different scenarios for each simulated network. The first using manual switches, the second scenario using RCS. Several case studies and the simulation results are discussed and demonstrated. It was concluded that the use of RCS with optimal number and location improve reliability performance by reducing the duration of interruptions and energy not supplied (ENS). It is clear that implementation of remote control switches is the key solutions to fast power restoration and improving network reliability.