Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/243011
Type: Artigo de periódico
Title: Using Semidefinite Relaxation To Solve The Day-ahead Hydro Unit Commitment Problem
Author: Paredes
M.; Martins
L. S. A.; Soares
S.
Abstract: In this paper, we present a mixed-integer formulation with nonlinear production functions of the day-ahead hydro unit commitment problem for hydro-dominant power systems. The objective is to minimize unit startup and shutdown costs and maximize water use efficiency in the daily operation of multiple hydro plants. Determination of hourly generation dispatches and unit configurations is subject to reservoir dynamics, power balance, as well as target constraints coupling short-term generation with long-term reservoir operation goals. In addition, ac power flow constraints are considered. An equivalent quadratically-constrained quadratic formulation is approximated by successive convex semidefinite programming relaxations in a branch-and-bound algorithm for optimal solutions. Numerical case studies for several system configurations are presented to illustrate the effectiveness of the relaxation algorithm.
Subject: Term
Optimization
Constraints
Decomposition
Coordination
Subject
Systems
Model
Country: PISCATAWAY
Editor: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation: Using Semidefinite Relaxation To Solve The Day-ahead Hydro Unit Commitment Problem. Ieee-inst Electrical Electronics Engineers Inc, v. 30, p. 2695-2705 SEP-2015.
Rights: fechado
Identifier DOI: 10.1109/TPWRS.2014.2359803
Address: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6919349
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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