Simultaneous Placement of Distributed Generation Units and Sectionalizing Switches in Distribution Network for Loss Reduction and Reliability Improvement with Islanding Operation and Time Variant Load Using Improved Genetic based Algorithm

Simultaneous use of distributed generation units and sectionalizing switches, can significantly improves system reliability. Moreover, operation of these resources in distribution network can play important role in reducing power losses. In this paper, presents a method for simultaneous placement of mentioned equipments, in order to minimizing power loss and improving reliability with considering network technical constraints. For this problem, a cost based objective function is used. In proposed method, time varying aspect of loads is considered via multi level load modeling. An improved genetic based algorithm by introducing new and complementary operators is used as solution method for the mentioned optimal placement problem. The proposed method, based on improved genetic algorithm, is applied on a 33-bus IEEE radial distribution test system to demonstrate its performance and efficacy. Also the impact of considering time varying load model is investigated.