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Type: Artigo de periódico
Title: Minimum Loss Predispatch Model For Hydroelectric Power Systems
Author: Soares S.
Abstract: A predispatch model that minimizes generation and transmission losses on hydroelectric power systems is presented and applied to the hydroelectric power system of COPEL, a Brazilian utility located in southern Brazil. Power loss in the generation and transmission systems is minimized on an hourly basis throughout a day. Load demand as well as generation, transmission and interchange operational constraints are satisfied. Hydroelectric generation characteristics are described in detail. Power loss in hydroelectric generation is associated with a reduction in turbine-generator efficiency and effective water head. The latter is due to an increase in tailrace elevation and penstock head loss. Power loss upon transmission is calculated as a quadratic function of active power flow, as represented in a DC load flow model. The predispatch model was evaluated under typical operational conditions, achieving significant savings with respect to actual operation. © 1996 IEEE.
Citation: Ieee Transactions On Power Systems. , v. 12, n. 3, p. 1220 - 1228, 1997.
Rights: fechado
Identifier DOI: 10.1109/59.630464
Date Issue: 1997
Appears in Collections:Unicamp - Artigos e Outros Documentos

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