Optimum Short-Term Hydrothermal Scheduling with Spinning Reserve Through Network Flows

AQstraet-Optimizing the thermal production of [2,3,4] or as a subproblem of the short term hydrothermal electricity in the short term in an integrated coordination problem, which includes the commitment of power when a unit thermal units [5,6]. The decoupled method followed by has been decided these papers consists in solving the hydro and thermal thermal generation in order to obtain the minimum subproblems separately, coordinating these decoupled thermal generation costs Over time period optimizations through a) the interchange of the marginal under study- Fundamental constraints to be prices of the hourly load demand (from the thermal satisfied are the coveriW Of kollrlY load subproblem to the hydro subproblem) and b) the hydro and satisfaction of spinning reserve requirements generation in each tirne period (from the hydro subp. and transmission capacity limits. A nonlinear to the thermal subp.). In order to solve the hydro network flow linear side constrailits subproblems through efficient linear network flow codes, with no decomposition into and thermal hydrogeneration, which appears in the objective function coordinating llydro subproblems Was used to solve the hYdrot1lerl1lal of the hydro subproblems, is usually a proximated as scheduling. Hydrogeneration iS linearized with a linear function of the discharges [2,3!, or both the respect to network variables and a llovel thermal discharges and stored water 51. Quadratic [6] and full