A fast power flow solution of radial distribution networks

Abstract

In this article a fast and reliable algorithm is proposed for the branch-bound solution of a distribution network. It uses a backward sweep method where the voltage of the terminal node on the main radial feeder must be known to start the solution. The convergence pattern of the algorithm depends largely on the initial voltage of the terminal node. Here, a properly estimated value of the terminal node voltage is used to start the method. Two methods of estimation of terminal node voltage are suggested in this investigation. A saving of one to two iterations has been achieved by using proposed starting voltage. The algorithm is tested on three sample systems of different complexities and the results are compared with flat start and forward sweep methods.