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Towards a more rigorous and practical unit commitment by Lagrangian relaxation

Zhuang, F., Galiana, F.D.·1988·IEEE Transactions on Power Systems

Abstract

A Lagrangian relaxation algorithm for power system generator unit commitment is proposed. The algorithm proceeds in three phases. In the first phase, the Lagrangian dual of the unit commitment is maximized by standard subgradient techniques. The second phase finds a reserve-feasible dual solution, followed by a third phase of economic dispatch. A mathematically based, systematic and generally applicable procedure to search for a reserve-feasible dual solution is presented. The algorithm has been tested on systems of up to 100 units to be scheduled over 168 hours, giving reliable performance and low execution times. Both spinning and time-limited reserve constraints are treated.>

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Metadata

Authors
Zhuang, F., & Galiana, F. D.
Venue
IEEE Transactions on Power Systems
Published
1988-05
Volume
3
Issue
2
Pages
763-773
ISSN
0885-8950 (ISSN-L)
OpenAlex
W1992390555
Cited by
453
References
0
FWCI
3.38
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Towards a more rigorous and practical unit commitment by Lagrangian relaxation. https://app.cochat.ai/papers/10.1109/59.192933
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Zhuang, F., & Galiana, F. D. (1988). Towards a more rigorous and practical unit commitment by Lagrangian relaxation. IEEE Transactions on Power Systems. https://doi.org/10.1109/59.192933

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