Determination of the Impact of Load Variations on Generator Participations

Open access is an essential feature in the deregulated power system. It permits all the generators to transmit power into the system. Depending upon the transmission network parameters, generator responses to the variation in loads differ from each other. To know these responses is important from various aspects such as for determination of nodal prices which will be needed in charging differential tariffs and also in congestion management. They are also helpful in determination of system parameters required to be controlled for transmission capability improvement, in case of less available transfer capability. This paper proposes the proportional sharing principle applied to compute the generator participations with the change in load.