A New Method for Loss Reduction Based on Simultaneous DG Placement and Network Reconfiguration

This Distributed generations (DGs) represent an efficient option for overcoming problems and challenges of power utilities like loss reduction, load growth, reliabilityimprovement and green house gas effect reduction. Appropriate sitting and sizing of DGs play a remarkable role on loss reduction. In this paper a new effective method for DGallocation is proposed that has more ability for loss reduction during system operation. In this method reconfiguration as new subject has been added to former DG allocation algorithms, so different possible configurations are considered for DG placement problem. In the other words DG allocation and reconfiguration are done simultaneously. Also to overcoming time-consuming of reconfiguration TLL-based reconfiguration is presented in this paper. In this reconfiguration method a profitable solution for finding all possible loops is suggested, hat is based on two TLL and CT/M matrices calculation. Thisproposed approach is applied to both test and real networks. All proposed procedures are programmed in DIgSILENT program using DPL. The Simulation results demonstrated the practical benefits of proposed approach

Keywords:

Distributed generation allocation , Reconfiguration , genetic algorithm , active and reactive loss reduction