Evaluation of Transmission Charges by Relative Electrical Distance Concept

Abstract

The electrical power industry has over the years been ruling by large utilities that had an overall authority over all actions in generation, transmission, distribution of power within its field of operation. Such system is also referred to as vertically integrated utilities. The first stage in the unbundling process of power industry has been the detachment of the transmission activities from the electricity generation activities. By the development of deregulated power system has been evolved many problems such as capacity storage, crowding of lines, allotment of transmission charges. In an open access electricity market, crowding occurs when the transmission network is impotent to accommodate all the needed transactions due to a violation of system working limits. In this restructured environment it is also very difficult to assign transmission charges. In this paper Relative electrical distance concept is use to check the transmission charges and used to improve rescheduling of generators to reduce congestion in lines. Relative electrical distance method gives relative position of load junction with respect to generator junction. This method gives the relative electrical distance between two points. In this paper a simple 4 bus network is taken to show the evaluation of transmission charges by this method.