Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32583
Transmission Loss Allocation via Loss Function Decomposition and Current Projection Concept

Authors: M.R. Ebrahimi, Z. Ghofrani, M. Ehsan


One of the major problems in liberalized power markets is loss allocation. In this paper, a different method for allocating transmission losses to pool market participants is proposed. The proposed method is fundamentally based on decomposition of loss function and current projection concept. The method has been implemented and tested on several networks and one sample summarized in the paper. The results show that the method is comprehensive and fair to allocating the energy losses of a power market to its participants.

Keywords: Transmission loss, loss allocation, current projectionconcept, loss function decomposition.

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1648


[1] A.M.Silva and J.G.Costa, "Transmission Loss Allocation: Part1-Single Energy Market" IEEE Trans. on Power Systems, Vol.18, No.4, November 2003, pp.1389-1393.
[2] J. Conejo, F. D. Galiana, I. Kockar, "Z-Buss Loss Allocation," IEEE Trans. on Power Systems, vol. 16, no. 1, pp. 105-110, Feb. 2001.
[3] Ilic M, Galiana FD, Fink L. "Power systems restructuring: engineering and economics" .Norwell, MA: Kluwer; 1998.
[4] Galiana FD, Conejo AJ, Kockar I . "Incremental transmission loss allocation under pool dispatch".IEEE Trans Power Syst 2002;17:26-33.
[5] Finney J, Othman HA, Rutz WL. "Evaluating transmission congestion constraints in system planning". IEEE Trans Power Syst 1997;12(3):1143-50.
[6] Bialek JW. "Tracing the flow of electricity". IEE Proc Gener Transmand Distrib 1996;143:313-20.
[7] Kirschen D, Strbac G. "Tracing active and reactive power between generators and loads using real and imaginary currents". IEEE Trans Power Syst 1999;14:1312-9.
[8] Strbac G, Kirschen D, Ahmed S. "Allocating transmission system usage on the basis of traceable contributions of generators and loads to flows". IEEE Trans Power Syst 1998;13:527-34.
[9] M.Ehsan, S.N.Keshmiri, "Transmission Loss Allocation Using Normalized Loss Weight Factors", International Power Engineering Conference Nanjing China, pp. 431-435, 6-9 April 2008.
[10] S. Abdelkader, "A new method for transmission loss allocation considering the circulating currents between generators" IEEE Power Systems Conference 12th International Middle-East, pp.282-286, March 2008.
[11] C. Unsihuay and O. R. Saavedra, "Transmission loss unbundling and allocation under pool electricity markets," IEEE Trans. Power Syst., vol. 21, no. 1, pp. 77-84, Feb. 2006.