GUPFC Optimum Position and Parameters for Reducing Transmission Loss Using the BAT Algorithm

Abstract

In a power system, the transmission losses are the major and most important losses. Reducing transmission losses is going to benefit us by saving a lot of energy. The transmission losses can be reduced by insertion of FACTS devices in the power system. Among all FACTS devices, preeminent is the Unified Power Flow Controller (UPFC) and Generalized Unified Power Flow Controller (GUPFC). Reduction of transmission losses is possible by integrating the GUPFC into the power system, placing it at an optimal location and its output being set at acceptable values. This paper discusses how to locate GUPFC's optimal position and also discusses the PSO algorithm and bat algorithm to find the optimal setting for overall loss reduction in transmission. Variation in voltage is taken as the location criteria and PSO is used to find GUPFC settings. This work is carried out using MATLAB engineering on an IEEE 14-bus network.