Hybrid PSOGSA technique for solving dynamic economic emission dispatch problem


  • Hardiansyah Hardiansyah Tanjungpura University


particle swarm optimization, gravitational search algorithm, dynamic economic emission dispatch, ramp rate limits, prohibited operating zones, valve-point effects


In this paper, a new hybrid population-based algorithm is proposed with the combining of particle swarm optimization (PSO) and gravitational search algorithm (GSA) techniques. The main idea is to integrate the ability of exploration in PSO with the ability of exploration in the GSA to synthesize both algorithms’ strength. The new algorithm is implemented to the dynamic economic emission dispatch (DEED) problem to minimize both fuel cost and emission simultaneously under a set of constraints. To demonstrate the efficiency of the proposed algorithm, a 5-unit test system is used. The results show the effectiveness and superiority of the proposed method when compared to the results of other optimization algorithms reported in the literature.

Author Biography

Hardiansyah Hardiansyah, Tanjungpura University

Department of Electrical Engineering