Call for Papers ESMO 2003

The ability to allocate the MW loading on transmission lines and group of lines is the basis of NERC\´s "flow-based" transmission allocation system. In such a system, MW flows must be allocated to each line or group of lines in proportion to MWs being transmitted by each transaction. This letter presents a methodology based on AC power transfer distribution factors to allocate the MW loading on transmission lines. The AC power transfer distribution factors have been derived using sensitivity properties of Newton Raphson load flow Jacobian at a base case load flow result. A 75-bus Indian power system network has been used to demonstrate the effectiveness of the proposed method.