Dynamic economic dispatch using hybrid DE-SQP for generating units with valve-point effects

Abstract

This paper presents hybrid differential evolution (DE) and sequential quadratic programming (SQP) for solving the dynamic economic dispatch (DED) problem for generating units with valvepoint effects. DE is used as a global optimizer and SQP is used as a fine tuning to determine the optimal solution at the final. The feasibility of the proposed method is validated with five- and ten-unit test systems. Results obtained by DE-SQP method are compared with other techniques in the literature.