THE REFINED STRATEGY FOR SUBSTATION MAIN TRANSFORMER AND FEEDER LOAD BALANCING

In the normal operation of a distribution system, substation main tran sformer and feeder load balancing is important since it can reduce the risk of overloads due to load changes. Load balancing is usually achi eved by reconfiguring the distribution feeders and redistributing the load currents among feeders and transformers. In the early studies on feeder reconfiguration, transformer load balancing and feeder load bal ancing were usually performed individually. A heuristic search approac h in which transformer load balancing and feeder load balancing are pe rformed simultaneously has been recently proposed by the authors in or der to improve efficiency. However, the solution obtained by using the aforementioned algorithm may be a local minimum. In this paper, a ref ined heuristic search approach for substation main transformer and fee der load balancing is proposed, in order to reach a better solution. C opyright (C) 1996 Elsevier Science Ltd