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Feasible Modified Subgradient Method for Solving the Thermal Unit Commitment Problem as a New Approach
Joint Authors
Filik, Ummuhan Basaran
Kurban, Mehmet
Source
Mathematical Problems in Engineering
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-07-15
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The Lagrangian relaxation- (LR-) based methods are commonly used to solve the thermal unit commitment (UC) problem which is an important subject in power system engineering.
The main drawback of this group of methods is the difference between the dual and the primal solutions which gives some significant problems on the quality of the feasible solutions.
In this paper, a new approach, feasible modified subgradient (F-MSG) method which does not require finding an unconstrained global minimum of the Lagrangian function and knowing an optimal value of the problem under consideration in order to update dual variables at the each iteration, is firstly used for solving the thermal UC problem.
The major advantage of the proposed approach is that it guarantees the zero duality gap and convergence independently from the size of the problem.
In order to discuss the advantages of this method, the four-unit Tuncbilek thermal plant, which is located in Kutahya region in Turkey, is chosen as a small test system.
The numerical results show that F-MSG gives better solutions as compared to the standard LR method.
American Psychological Association (APA)
Filik, Ummuhan Basaran& Kurban, Mehmet. 2010. Feasible Modified Subgradient Method for Solving the Thermal Unit Commitment Problem as a New Approach. Mathematical Problems in Engineering،Vol. 2010, no. 2010, pp.1-11.
https://search.emarefa.net/detail/BIM-450567
Modern Language Association (MLA)
Filik, Ummuhan Basaran& Kurban, Mehmet. Feasible Modified Subgradient Method for Solving the Thermal Unit Commitment Problem as a New Approach. Mathematical Problems in Engineering No. 2010 (2010), pp.1-11.
https://search.emarefa.net/detail/BIM-450567
American Medical Association (AMA)
Filik, Ummuhan Basaran& Kurban, Mehmet. Feasible Modified Subgradient Method for Solving the Thermal Unit Commitment Problem as a New Approach. Mathematical Problems in Engineering. 2010. Vol. 2010, no. 2010, pp.1-11.
https://search.emarefa.net/detail/BIM-450567
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-450567