TY - JOUR ID - 476 TI - Reliability and Supply Security based Method for Simultaneous Placement of Sectionalizer Switch and DER Units JO - Journal of Operation and Automation in Power Engineering JA - JOAPE LA - en SN - 2322-4576 AU - Mohammadzadeh, B. AU - Safari, A. AU - Najafi Ravadanegh, S. AD - Young Researcher and Elite Club, Germi Branch, Islamic Azad University, Germi, Iran. AD - Department of Electrical Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran AD - Department of Electrical Engineering, Payame Noor University, PO. Box 19395-3697. Tehran, Iran Y1 - 2016 PY - 2016 VL - 4 IS - 2 SP - 165 EP - 174 KW - Optimal switch placement KW - Optimal DER placement KW - Reliability assessment KW - Imperialist competitive algorithm KW - Supply security aspects DO - N2 - This paper presents a new and useful methodology for simultaneous allocation of sectionalizer switches and distributed energy resources (DERs) considering both reliability and supply security aspects. The proposed algorithm defines the proper locations of sectionalizer switching devices in radial distribution networks considering the effect of DER units in the presented cost function and other optimization constraints such as providing the maximum number of costumers to be supplied by DER units in islanded distribution systems after possible outages. In this paper, the main goal of cost function is to minimize the total cost of expected energy not supplied (EENS) with regard to impacts of load priority and optimum load shedding in the both grid connected and islanding states after possible outages. The proposed method is simulated and tested on a case study system in both cases of with DER and non DER situations. Also, this paper evaluates the number and amount of DER, switch and different DER penetration percentage effects in cost function value.  For solving of mentioned problem, this paper uses a new and strong method based on imperialist competitive algorithm (ICA).  Simulation and numerical results show the effectiveness of the proposed algorithm for placement of switch and DER units in the radial distribution network simultaneously. UR - https://joape.uma.ac.ir/article_476.html L1 - https://joape.uma.ac.ir/article_476_3e9e375d00cd1f981fbd5e29373239fd.pdf ER -