NDLI: Branch and bound-interior point method for security-constrained unit commitment

Content Provider	IEEE Xplore Digital Library
Author	Yu-Guang Xie Hsiao-Dong Chiang
Copyright Year	2010
Description	Author affiliation: School of Electrical and Computer Engineering, Cornell University, Ithaca, NY 14853 USA (Hsiao-Dong Chiang) \|\| School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University, 200240, China (Yu-Guang Xie)
Abstract	An efficient branch and bound-interior point methodology (B&B-IPM) is proposed to solve security-constrained unit commitment (SCUC) problem with DC network model. The SCUC problem is decomposed into single-hour SCUC problems, each formulated as the mixed-integer convex program (MICP) to allow fast convergence to the global optimum of the convex relaxation. The MICP-based single-hour SCUC problem is solved by B&B-IPM method hour-by-hour. During the B&B process, the best first search and the depth first search strategy is combined to expedite the computation, and a modified B&B is introduced to find a near-optimal feasible solution in a shorter computation time. For testing the proposed approach, a modified IEEE 118-bus system with 36 thermal units, a modified IEEE 118-bus system with 54 thermal units, and a modified IEEE 678-bus system with 170 thermal units are analyzed over a period of 24 hours. Comparison of the results with the mixed-integer linear program (MILP) based single-hour SCUC problem, the MICP-based single-hour SCUC can make an improvement in the quality of solution. The numerical results indicate that the proposed approach is efficient and applicable to the large-scale day-ahead SCUC calculation.
Starting Page	1
Ending Page	8
File Size	383804
Page Count	8
File Format	PDF
ISBN	9781424465491
ISSN	19449925
e-ISBN	9781424465514
e-ISBN	9781424483570
DOI	10.1109/PES.2010.5588173
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Indexes Power transmission lines Power generation Fuels Time factors Load flow Convergence Modified branch and bound Security-constrained unit commitment Branch and bound Interior point method Mixed-integer convex program
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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