Lambda of Lagrangian relaxation solution to unit commitment problem
Lambda of Lagrangian relaxation solution to unit commitment problem
- Author(s): A.G. Bakirtzis and C.E. Zoumas
- DOI: 10.1049/ip-gtd:20000173
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- Author(s): A.G. Bakirtzis 1 and C.E. Zoumas 1
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View affiliations
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Affiliations:
1: Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Greece
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Affiliations:
1: Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Greece
- Source:
Volume 147, Issue 2,
March 2000,
p.
131 – 137
DOI: 10.1049/ip-gtd:20000173 , Print ISSN 1350-2360, Online ISSN 1359-7051
The difference between the lambda values of the economic dispatch and the unit commitment problems is presented, based on the economic interpretation of the Lagrangian relaxation solution framework. Although both sets of lambdas represent marginal cost of electricity, the underlying assumptions on their computation in the two problems are different, as explained. Results of two case studies that support the above differences are presented.
Inspec keywords: power generation economics; power generation dispatch
Other keywords: economic dispatch; Lagrangian relaxation lambda; marginal electricity cost; unit commitment
Subjects: Power system management, operation and economics; Administration and management; Management issues
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