Short-term operation scheduling of a hydropower plant in the day-ahead electricity market

Grid-wide subdaily hydrologic alteration under massive wind power penetration in Chile

“…This inter-power plant variation is much stronger than the difference in fluctuations induced by wind portfolios or water type years. For environmental assessments, this calls for individual project analysis, but always tied to grid operation, in which operational constraints and physical countermeasures (Olivares, 2008;P erez-Díaz et al, 2010) should be evaluated to reduce hydrologic alteration.…”

“…For the first, the historical records of stored water of each reservoir were filtered according to water type year and the median of the resulting set was chosen. For the latter, the future cost functions of every selected week, computed by the ISO (2013) using a mid-term planning model based on stochastic dual dynamic programing (Pereira and Pinto, 1991), were used. Those were not updated for the different wind portfolios, which is a limitation of this work.…”

MILP based short-term centralized and decentralized scheduling of a hydro-chain on Kelkit River

“…In [12][13][14] general, there are several aspects that do not fit into LP framework such as head effects, spillages, and start-up costs. To be able to deal with such complications, one may model the problem as a mixed integer-linear program (MILP) [15][16][17][18][19][20][21][22][23][24][25]. There exist state of the art MILP solvers that can find optimal solution in a reasonable amount of time.…”

Strategic Planning for Operation of Large Hydropower Plants

“…This model has been applied to a hydroelectric power system in Brazil and significant savings were realized. Pérez-Díaz et al (2010) proposed a non-linear programming based model to solve short-term operation scheduling problems for a single hydropower plant with an objective to maximize its revenues. The study focuses on water discharge and reservoir volume and the schedules of start-ups/shut-downs to obtain unit commitment and dispatch of the committed units.…”