Coordinated design of UPFC based on multi-objective particle swarm optimization

In this paper,the problem of coordinated design for UPFC controllers is formulated as a multi-objective optimization problem.A novelty multi-objective particle swarm optimization (MOPSO) based approach is developed to solve the coordination design problem of UPFC by optimizing UPFC controller parameters.The paper presents the theory and the implement procedure of MOPSO.Comparison of the optimization effects between the MOPSO and the multi-objective evolutionary algorithm (MOEA) is carried out.Simulation results show that the proposed MOPSO based method is capable of obtaining high quality solution.The stable convergence characteristics and the good computation efficiency of the MOPSO based method are also discovered.The time-domain results show the effectiveness of the proposed coordinated design method of UPFC controllers.