A hybrid particle swarm optimisation with social weight for non-convex economic dispatch problem
by Jinglei Guo; Zhijian Wu; Bin Zhao
International Journal of Computer Applications in Technology (IJCAT), Vol. 46, No. 3, 2013

Abstract: This paper presents a hybrid particle swarm optimisation with social weight (HSWPSO) to solve the economic dispatch (ED) problem in power system. Due to equality constraints and non-convex characteristics in ED problem, HSWPSO employs social weight factor, extremum disturbance operator and correction operator to overcome difficulties. The social weight factor is used to improve the global and local search ability of the swarm. The extremum disturbance operator helps trapped particles escape from the local optima. The correction operator ensures the position of particle satisfy the power balance equation. HSWPSO algorithm is applied to two kinds of ED problems, namely ED with valve-point effects and ED with multiple fuels. Experiment results show the effectiveness and feasibility of HSWPSO.

Online publication date: Wed, 29-May-2013

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