RESEARCH ON RIGOROUS MATHEMATICAL DERIVATION OF LOSS ALLOCATION RULE IN TRANSMISSION COST CALCULATION
Li Weidong, Sun Hui, Zhao Shanjun (Dalian University of Technology. Dalian 116023. China; Puyang Electric Power Bureau. Puyang 457000. China)
The issue on loss allocation is studied in detail. The additional loss due to a consumer is defined as the loss due to the power flow of the consumer in the transmission equipment. Based on rigorous mathematical derivation, a new loss allocation rule is proposed. The additional power losses due to the flow of power of two transmission service consumers are shared between two consumers according to their demands (generations) while the other part of the losses are shared according to the square of each of their demands (generations). Theoretical analysis shows that the proposed rule is more fair and reasonable. Numerical simulation also shows that the loss allocation results by the proposed rule tally with the actual situation and the proposed rule is an advantageous information for the customers to reduce the whole system losses.