An Alternative Power Tracing Method for Transmission Open Access

This paper suggests a method for tracing the current and complex power from individual power sources to system loads. Based on solved load flow, the method converts power injections and line flows into real and imaginary current injections and current flows. These currents are then represented independently as real and imaginary current networks. Since current networks are acyclic lossless networks, proportional sharing principle and graph theory is used to trace the relationship between current sources and current sinks. The contributions from each current source are finally translated into power contributions to each load. IEEE 14-bus test system is used to illustrate the effectiveness of the method. Comparison of the results with previous methods is also given. 1