A heuristic method for determining the distribution network configuration with minimum resistive line losses is described. This method is based on the optimality condition developed by Merlin and Back (1975). Using a fast and reliable load flow solution technique and introducing efficient algorithms for network elements inspection, that methodology becomes suitable for a real-time application. The proposed method is tested on three test-systems used in literature for the same purposes. Its efficiency advantages are especially emphasized in its application on distribution networks of realistic size.
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