Effects of Hydro-Dynamics on Optimum Scheduling of Thermo-Hydro Power Systems

Decomposition algorithms are proposed in the literature to compute the optimal schedule of integrated hydro-thermal power systems. Such an algorithm in conjunction with successive solutions of optimal load flows and of the hydro subsystem is presented in [1]. However, the specific computation of a schedule for a hydro system, which takes into account hydro dynamics with variable water heads, cascaded plants, by-pass discharges, spilling, pump storage plants, and navigation requirements, is still to be presented. The present paper covers a possible procedure to compute the optimal schedule for such hydro systems.