Hydro-electric unit commitment subject to uncertain demand

We consider the problem of scheduling daily hydro-electricity generation in a river valley. Each generating station in this river valley has a number of turbines which incur fixed charges on startup and have a generation efficiency which varies nonlinearly with flow. With appropriate approximations...

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Veröffentlicht in:European journal of operational research Jg. 125; H. 2; S. 410 - 424
Hauptverfasser: Philpott, A.B., Craddock, M., Waterer, H.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Amsterdam Elsevier B.V 01.09.2000
Elsevier
Elsevier Sequoia S.A
Schriftenreihe:European Journal of Operational Research
Schlagworte:
Dynamic programming
Integer programming
Linear programming
Stochastic integer programming
Stochastic models
Studies
Unit commitment
Stochastic integer programming
Unit commitment
Dynamic programming
ISSN:0377-2217, 1872-6860
Online-Zugang:Volltext
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Zusammenfassung:We consider the problem of scheduling daily hydro-electricity generation in a river valley. Each generating station in this river valley has a number of turbines which incur fixed charges on startup and have a generation efficiency which varies nonlinearly with flow. With appropriate approximations the problem of determining what turbine units to commit in each half hour of the day can be formulated as a large mixed-integer linear programming problem. In practice the generation required from this group of stations in each half hour is often different from that forecast. We investigate the impact of this uncertainty on the unit commitment by using an optimization-based heuristic to give an approximate solution to the stochastic problem.
Bibliographie:SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 14
ISSN:0377-2217
1872-6860
DOI:10.1016/S0377-2217(99)00172-1