Power flow tracing by graph method using BFS technique

This paper proposes an efficient solution to the problem of power flow tracing in electrical transmission networks. In a competitive-market environment, deregulation of the electricity industry and thus transmission open access make it even more important to allocate the cost of transmission service fairly. Graph method and the proportional-sharing principle are employed to trace power flow; the results are then employed to determine the real power contribution of generators to lines and loads. The sequence of tracing of nodes is determined by using Breadth First Search technique. The proposed method can also be applied for reactive power tracing. The algorithm is tested on a 6 bus system.