Abstract
Scientific researches and technological developments, although they seek to solve the problems related to the reduction of the cost of generation and the emissions, are in the course of finding the best solutions. It is in this context that our paper is located and which focuses on the problem of dynamic economic environmental dispatch (DEED) using a Biogeography-based optimization (BBO). Ramp rate limits, Prohibited of operation zones (POZs) and effects of loading valve points are taken into account. The proposed technique integrates the Cauchy operator and the explosion method in the original BBO algorithm, to avoid the random search mechanism. The BBO is inspired by geographical distribution of species within islands. However, this optimization algorithm works on the basis of two concepts-migration and mutation. In this paper a non-uniform mutation operator and a Shannon's entropy based-method have been employed. The proposed technique shows a better diversified search process and therefore more precisely finds solutions with a high rate of convergence. This algorithm with new mutation operator is validated on forty-unit test system. The results showed that the proposed technique provides better compared optimal solutions with over ten meta heuristics techniques.