Optimal reactive power flow control for minimization of active power losses using Particle swarm Optimization

The main goal of this work is to determine the optimum operating conditions of the control variables within the constraints of control variables and minimization of transmission losses at normal operating condition of the system. The upper and lower values of voltages at load bus, the lower and upper values of generator reactive powers and normal operating values of transformer tap settings and generator terminal voltages are consider as constraints for objective function. For obtaining the optimum operating conditions of the control variables and minimization of transmission losses “Particle swarm Optimization (PSO)” is being used. The PSO method is applied on 6-bus Ward Hale & 30-bus IEEE system. The results for both systems are presented.