M.Younes⁽¹⁾ N.Kherfane⁽²⁾,M. Laouer⁽³⁾

⁽¹⁾⁽²⁾ Faculty of Technology ) Djillali Liabes University Sidi Bel Abbes, 22000, Algeria,younesmi@yahoo.fr

⁽³⁾ Laboratoire LMMC, Université de Saida,

Abstract

Environmental legislation, with its increasing pressure on the energy sector to control greenhouse gases, is a driving force  to reduce CO₂ emissions, forced the power system operators to consider the emission problem as a consequential matter beside the economic problems, so the economic power dispatch problem has become a multi-objective optimization problem. This paper sets up an new hybrid algorithm  combined in two algorithm, the harmony search algorithm and ant colony optimization (HSA-ACO),  to solve the optimization with combined economic emission dispatch. This problem has been formulated as a multi-objective problem by considering both economy and emission simultaneously. The feasibility of the proposed approach was tested on 3-unit and 6-unit systems. The simulation results show that the proposed algorithm gives comparatively better operational fuel cost and emission in less computational time compared to other optimization techniques.