A power flow method computationally efficient for large-scale distribution systems

Due to several factors, conventional power flow does not present a good performance in solving distribution system power flow. Thus, the Backward and Forward Sweep method is the one more utilized in this kind of network, mainly in radial distribution system. In spite of there be several variants of this method, two more utilized are Current Summation Method and Power Summation Method. In this paper is proposed a data structure that guarantees better efficiency to these methods. It is known by Node-depth Encoding, and it can improve their performance. Mainly when they are utilized in large distribution networks and when is necessary to run the power flow many times. It will be presented results obtained by two methods well known at the literature and these methods with node-depth encoding. The results guarantee that it can be utilized in several applications, even though in larger distribution systems.