Transmission Loss Allocation Algorithm Using Path-Integral Based on Transaction Strategy.

This paper presents a new algorithm of accurate buswise transmission loss allocation based on path-integrals. With rigorous theoretical analysis, a new path-integral method is developed by integrating the partial differential of the system loss along a path reflecting the transaction strategy. This path-integral enables us to remarkably enhance the accuracy in loss allocation with full consideration of nonlinearity. The accuracy has been further improved by using the ac power flow. Determining the integral path is discussed to reflect various situations of the power market. Given an integral path, the proposed algorithm provides a unique and accurate solution to the loss allocation. An effective method is proposed to reduce the computation time remarkably in the integration of bus-wise differential loss. The proposed algorithm has been tested and the results showed that online application is possible to large power systems. [ABSTRACT FROM AUTHOR]