A quick and practicable power flow tracing method on electric energy market. I. Theoretic fundament

In a competitive market environment, to "fairly allocate the total cost of transmission", which is identical with the actual utilization of the network, is most important. Based on network theory and graph theorem, this paper theoretically proves and extends the proportional sharing principle. With it, the employment of transmission lines by different generators and loads can be confirmed theoretically, while energy consumers can be impartially, rationally charged, and quickly and truly ascertained according to the actual utilization of the network. Also based on this principle, many problems in the electricity energy market field can be settled.