Solution of optimal power flow problem of system with FACTS devices using MDE algorithm

Goal of this paper is to investigate the potential of modified differential evolution (MDE) algorithm, to find solution for optimal power flow (OPF) problem of power systems incorporating flexible ac transmission system (FACTS) devices. The optimization problem of the present work is formulated with four different objective functions viz., (a) fuel cost minimization, (b) power transmission losses minimization, (c) emission reduction and (d) minimization of combined economic and environmental cost. In this context, two FACTS devices, namely, thyristor controlled phase shifter (TCPS) and thyristor controlled series capacitor (TCSC) are integrating at predefined locations on the standard IEEE-57 bus test system. The results demonstrate the potential of the proposed approach and show its effectiveness and robustness to solve the OPF problem for the test systems considered.