Abstract: Abstract:The power system economic dispatch is multiobjective, and in practice, the importance of each objective function is different. Aiming at above situation, a fuzzy linear weighting method for solving economic dispatch problem of power system was proposed. In this method, the linear weighting method is used in the membership functions of each objective function to solve the economic dispatch problems of power system, and the Lingo software is used in example simulation. The solutions of the fuzzy linear weighting method and the minimax method were compared, and the comparison results show that the fuzzy linear weighting method is more suitable for practical problems.

Key words: Keywords:power system, economic dispatch, multiple targets, membership function, linear weighting method