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An ordinal optimization theory-based algorithm for solving the optimal power flow problem with discrete control variables

delete2004-02-01
delete70
PRE
AI
S
Shih‐Yen Lin
Y
Y. C. Ho
C
Chia‐Hung Lin
DOI:10.1109/TPWRS.2003.818732delete
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Abstract

Abstract

En 中文
The optimal power flow (OPF) problem with discrete control variables is an NP-hard problem in its exact formulation. To cope with the immense computational-difficulty of this problem, we propose an ordinal optimization theory-based algorithm to solve for a good enough solution with high probability. Aiming for hard optimization problems, the ordinal optimization theory, in contrast to heuristic methods, guarantee to provide a top n% solution among all with probability more than 0.95. The approach of our ordinal optimization theory-based algorithm consists of three stages. First, select heuristically a large set of candidate solutions. Then, use a simplified model to select a subset of most promising solutions. Finally, evaluate the candidate promising-solutions of the reduced subset using the exact model. We have demonstrated the computational efficiency of our algorithm and the quality of the obtained solution by comparing with the competing methods and the conventional approach through simulations.
Keywords:
discrete control variables
nonlinear programming
optimal power flow
ordinal optimization

Journal

IEEE Transactions on Power Systems cover
IEEE Transactions on Power Systems
IF:
7.2
Papers:
1.1W
Citations:
5.0W

Organization

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