Monte Carlo Method for Line Losses Evaluation in Transmission Network

This paper presents a new probabilistic algorithm to evaluate the transmission losses. The proposed method accounts for the uncertainty of the network structure and electric loads, operation practices of generating units and voltage/reactive power regulation. Where, the transmission losses are computed by nonlinear power flow method with the system operation states being simulated in detail, and the probabilistic distribution is determined by Monte Carlo simulation method. Because the affects to transmission losses is fully considered by the proposed method, the result is more accurate and more useful. Simulation example is given to testify the validity and efficiency of the proposed method.