Power Distribution System Planning with Demand Uncertainty Consideration

Abstract

This paper proposes a method for solving distribution system planning problems takinginto account demand uncertainty and geographical information. The proposed method can automatically select appropriate losizes of conductors while satisfying constraints, e.g. voltage drop and thermal limit. The demand uncertainty representing load growth is modeled by fuzzy numbers. Feeder routing is determined with consideration of existing infrastructure, e.g. streets and canals. The method integrates planners experience and process optimization to achieve an appropriate practical solution. The proposed method has been tested with an actual distribution system, from which the results indicate that it can provide satisfactory plans.