Application of Biogeography-based Optimization for Economic Dispatch Problems

In this paper, Biogeography-based optimization (BBO) algorithm has been presented for solving the economic dispatch (ED) problems. An optimal short-term thermal generation schedule for 24 time intervals has been presented for the same purpose. The BBO algorithm has been applied to two different test systems, one consisting of three generators and the other of six generators.The results obtained are compared with the conventional Lagrange multiplier method and the particle swarm optimization (PSO) method. The results show that the presented BBOalgorithm provides comparatively better solutions in terms of total fuel cost as compared to other methods.Also, the global search capability is enhanced and premature convergence is avoided.

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