The study for electric power equipment supplier evaluation based on rough set and fuzzy grey incidence cluster analysis

Supplier evaluation is a precondition to choose good electric power suppliers, based on analyzing existing evaluation methods of suppliers, this paper establishes evaluation index system of suppliers integrative strength, puts forward a integrative evaluation model based on integrating rough set with fuzzy grey incidence cluster analysis, makes the results of the evaluation more objective, scientific and precise. Finally, we illustrate the application in choosing electric power suppliers by an example.