Abstract-This paper presents an enhanced differential
evolution algorithm (EnDEA) to solve economic dispatch (ED)
problem of generating units considering valve-point effects and
system losses. The aim of ED problem is to achieve optimal
generation scheduling of power plants, which has minimum total
production cost associated with technical and economical
constraints. The efficiency and effectiveness of the proposed
method is initially demonstrated via the analysis of 10-unit test
system considering valve-point loading and system losses
constraints. Furthermore, multiple fuels of thermal power plant
are included and investigated in this ED problem. A detailed
comparative study between a conventional differential evolution
algorithm (CDEA) and the proposed EnDEA method is
presented. Regarding the experimental results, the proposed
technique obtained solutions with good accuracy, stable
convergence characteristics, and satisfactory calculation time.