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Security-Constrained Unit Commitment Based on a Realizable Energy Delivery Formulation
Joint Authors
Wu, Hongyu
Zhai, Qiaozhu
Guan, Xiaohong
Gao, Feng
Ye, Hongxing
Source
Mathematical Problems in Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-22, 22 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-02-26
Country of Publication
Egypt
No. of Pages
22
Main Subjects
Abstract EN
Security-constrained unit commitment (SCUC) is an important tool for independent system operators in the day-ahead electric power market.
A serious issue arises that the energy realizability of the staircase generation schedules obtained in traditional SCUC cannot be guaranteed.
This paper focuses on addressing this issue, and the basic idea is to formulate the power output of thermal units as piecewise-linear function.
All individual unit constraints and systemwide constraints are then reformulated.
The new SCUC formulation is solved within the Lagrangian relaxation (LR) framework, in which a double dynamic programming method is developed to solve individual unit subproblems.
Numerical testing is performed for a 6-bus system and an IEEE 118-bus system on Microsoft Visual C# .NET platform.
It is shown that the energy realizability of generation schedules obtained from the new formulation is guaranteed.
Comparative case study is conducted between LR and mixed integer linear programming (MILP) in solving the new formulation.
Numerical results show that the near-optimal solution can be obtained efficiently by the proposed LR-based method.
American Psychological Association (APA)
Wu, Hongyu& Zhai, Qiaozhu& Guan, Xiaohong& Gao, Feng& Ye, Hongxing. 2012. Security-Constrained Unit Commitment Based on a Realizable Energy Delivery Formulation. Mathematical Problems in Engineering،Vol. 2012, no. 2012, pp.1-22.
https://search.emarefa.net/detail/BIM-1001377
Modern Language Association (MLA)
Wu, Hongyu…[et al.]. Security-Constrained Unit Commitment Based on a Realizable Energy Delivery Formulation. Mathematical Problems in Engineering No. 2012 (2012), pp.1-22.
https://search.emarefa.net/detail/BIM-1001377
American Medical Association (AMA)
Wu, Hongyu& Zhai, Qiaozhu& Guan, Xiaohong& Gao, Feng& Ye, Hongxing. Security-Constrained Unit Commitment Based on a Realizable Energy Delivery Formulation. Mathematical Problems in Engineering. 2012. Vol. 2012, no. 2012, pp.1-22.
https://search.emarefa.net/detail/BIM-1001377
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1001377