ELECTRIC POWER COMPONENTS AND SYSTEMS, cilt.29, sa.11, ss.977-995, 2001 (SCI-Expanded)
In this paper. a lossy electric power system, which contains thermal and hydraulic units, is considered. The total cost of thermal units in an operation period is minimized under some possible electric and hydraulic constraints. The operation period is divided into time intervals where the system loads are assumed to remain constant.