Energy saving using D-STATCOM placement in radial distribution system under reconfigured network

High R/X ratio and significant voltage drop causes substantial power losses along the distribution network. In this paper optimal location and size for D-STATCOM is determined for radial distribution networks under reconfigured network to reduce the power loss which in turns save the energy and environment. The main contribution of the paper is: D-STATCOM allocation using index vector method for radial distribution network with and without reconfiguration, D-STATCOM size calculation using variational techniques for RDS with and without reconfiguration, Impact of CP, CI, CZ, and realistic ZIP load model including load growth on D-STATCOM placement, Energy Saving with improvement in voltage profile, reduction in power losses with D-STATCOM placement under reconfigured network, Cost analysis with and without D-STATCOM Placement under reconfigured network, Results are compared with existing technique proposed in literature. The proposed method is tested for D-STATCOM allocation in IEEE 69-bus radial distribution systems. Results show the considerable improvement in voltage profile, reduction in losses and, energy saving under reconfigured network. (C) 2016 The Authors. Published by Elsevier Ltd.