IEE   25093
INSTITUTO DE ENERGIA ELECTRICA
Unidad Ejecutora - UE
artículos
Título:
Stochastic daily hydrothermal scheduling based on decomposition and parallelization
Autor/es:
ARILD HELSETH; OSVALDO AÑÓ; LOPEZ-SALGADO, CARLOS J.; OJEDA-ESTEYBAR, DIEGO M.
Revista:
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 2019 vol. 118 p. 1 - 11
ISSN:
0142-0615
Resumen:
Abstract. This paper studies the stochastic short termhydrothermal scheduling of systems that have a significantcontribution from controllable reservoirs, focusingon the reservoirs´ operation policy when nonlinearityand deployment of supplementary reserves atthe real operation stage, are modeled. Wind power andforced outages of power plants and transmission linesare treated as stochastic variables, and the total reserveis an endogenous variable to the model. The problemincludes cascaded hydro systems with head-sensitiveplants, a DC power ow representation with nonlineartransmission losses, and four types of operating reserves;and it aims at pre-positioning generation andreserves schedules in the light of the expected deploymentof operating reserves throughout the day. To solvethe optimization problem, a hybrid scheme elaboratedfrom outer approximation and Benders decompositionis applied. The proposed solution method is tested ina real-size system, where its effectiveness, in terms ofcomputational speed and accuracy, is demonstrated.The main nomenclature used is presented next. Otherauxiliary variables, coefficients, dual variables and scalarsare detailed within the section they are mentioned.