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Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/4627

Title: Optimizing the profit from a complex cascade of hydroelectric stations with recirculating water
Authors: Korobeinikov, Andrei
Kovacec, Alexander
McGuinness, Mark
Pascoal, Marta
Pereira, Ana I.
Vilela, Sonia
Keywords: Optimization
Hydroelectric power
Branched cascade
Issue Date: 2010
Publisher: Fields Institute
Citation: Korobeinikov, A.; Kovacec, Alexander; McGuinness, Mark; Pascoal, Marta; Pereira, Ana I. ; Vilela, Sonia (2010) - Optimizing the profit from a complex cascade of hydroelectric stations with recirculating water. Mathematics-in-Industry Case Studies Journal. Vol. 2, ISSN: 1913-4967. p. 111-133
Abstract: In modern reversible hydroelectric power stations it is possible to reverse the turbine and pump water up from a downstream reservoir to an upstream one. This allows the use of the same volume of water repeatedly and was speci cally developed for hydro-electric stations operating with in- su cient water supply. Pumping water upstream is usually done at times of low demand for electricity, to build up reserves in order to be able to produce energy during peak hours, thus balancing the load and making a pro t on the price di erence. In this paper, we consider a branched model for hydroelectric power stations interacting in a complex cascade arrangement. The goal of this study is to provide guidance in decision-making aimed at maximizing the pro t. A detailed analysis is made of a simpler reservoir con guration, which indicates that even though the problem is nonlinear, a bang-bang type of control is optimal, where the power stations are operated at maximum rates of flow. Some simple relationships between price and timing of decisions are calculated directly. A numerical algorithm is also developed.
Peer Reviewed: yes
URI: http://hdl.handle.net/10198/4627
ISSN: 1913-4967
Publisher version: http://www.micsjournal.ca/index.php/mics/article/viewFile/25/24
Appears in Collections:DEMAT - Artigos em Revistas Não Indexados ao ISI

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