A new performance index for parameter selection under random load changes

Abstract

Power systems experience continuous and random load changes. With the present analytical tools it is very difficult to assess the overall performance of a power system under such loading, especially if the system contains non-linear elements. As the quality of performance of the system under random disturbance is not easily quantifiable, it becomes very difficult for a designer to check the optimality of a certain parameter under all possible loading patterns. This paper attempts to overcome this difficulty by suggesting a new performance index that quantifies the quality of any power system (or any other control system) under random disturbance.