Optimization of Pumped-Storage Energy in Operation Aspect Using the Analytic Cost Function

전선차용계면에서의 아수발전성 최적화를 위한 해석적 앨고리즘에 관한 연구

This paper derives a newly neveloped analytic optimal condition to minimize the operating cost of a generation system in the aspect of Power System Planning, When the system includes pumped-storage units. The analytic optimal condition is derived by defferentiating the analytic cost function, Which were obtained by assuming the load and generating as Gaussian random variables, with respect to the variations of pumping energy. The condition is resulted in very simple form and various optimization techniques can be used. The simulation results of a case study were compared with the results of the conventional methods to prove the usefulness of the algorithm.