Scheduling of Pumped Storage Hydrothermal System with Evolutionary Programming

This paper presents the ever proved evolutionary programming techniques for solving the generation/ pumping scheduling problem of hydro thermal system with pumped storage plants. Pumped storage hydro plant is used to save fuel cost by serving the peak load with hydro energy and then pumping the water back up into the reservoir at light load periods. Therefore, a pumped storage unit can be operated any one mode out of three states such as generation, pumping and idle states. It can smooth peak loads and provide reserves and plays a vital role in reducing the total generation cost in a hybrid power system.