A Short-Term Hydro Scheduler for Hydro-Thermal Power Systems

by Ramaiah Divi, SaskPower, Regina, Sask, Canada,
Pawan K. Vohra, SaskPower, Regina, Sask, Canada,
Dan Ruiu, SaskPower, Regina, Sask, Canada,

Document Type: Proceeding Paper

Part of: Water Power '87


This paper presents HYDSIM (Hydro-electric Simulation), a new versatile computer model developed to simulate the hourly or daily operation of a large network of multi-purpose reservoirs and river systems. The salient features of HYDSIM include computational efficiency and accuracy of results. To achieve computational efficiency, calculations are carried out in two phases. In the first phase, the program develops a set of feasible hourly hydro plant generation schedules based upon the availability and cost of fuels for thermal generation, unit maintenance schedules, flow forecasts, etc. In the second phase, the program optimally dispatches the scheduled hourly plant outputs among the units available in each plant. The paper includes computational results obtained from an application of this model to an existing hydro-thermal system.

Subject Headings: Scheduling | Thermal effects | Hydro power | Energy infrastructure | Hydrologic models | Simulation models | Thermal power | Computer networks

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