An optimal phase balancing technique for unbalanced three-phase secondary distribution systems

In this paper, a phase balancing algorithm is developed for secondary distribution network by rephasing the consumer service laterals. The algorithm is proposed for rephasing of three and single phase consumer service laterals (service wire connecting home and supply line) at each node from tail end of the feeder. Formulation of algorithm includes average load per phase and average load per service with an objective to minimize loss and number of phase moves/ rephasings of service laterals. To demonstrate the performance of proposed algorithms, IEEE 13 node test feeder is selected. Their corresponding results' validating the proposed algorithm is presented.