A Reliable and Economic Power System Dispatch

Abstract

A line bus security index is added to the generation cost forming a new objective function a suitable for optimal power system dispatch. The value of this security index is directly proportional to the sum of the squares of voltages of both bus voltage and line flows. Normal as well as contingency states of a power system are successfully dispatched. Result obtaining during a normal state of both the 6-bus and modified 30-bus cost. Both systems are also dispatched when the outage contingencies are assumed. Successful dispatch results are obtained without any load shedding. Power system reliability is seen to be greatly improved through the present reliable optimum dispatch