Distribution Substation Planning Method Based on Weighted Voronoi Diagram

The characteristics of weighted Voronoi diagram and its application in power network planning introduced, according to target annual total load, existing substation capacity and candidate substation capacity type, determine the maximum and minimum number of the new substations, set loop variable, use integer programming optimization technique to obtain the combination of the a new station capacity. According to with or without the existing station, produce the initial location of the new substation respectively based on the regular Voronoi diagram method and the coordinate geometry method given the comprehensive consideration of planning region terrain features, regional area and load distribution; combine with the weighted Voronoi diagram and alternative location-allocation algorithm to determine the new substation site and the scope of power supply, find out the minimum annual cost correspondingly as the final plan.