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Efficient AC Optimal Power Flow and Global Optimizer Solutions
| Content Provider | Semantic Scholar |
|---|---|
| Author | Poyrazoglu, Gokturk Oh, Hyungseon |
| Copyright Year | 2015 |
| Abstract | AC Optimal Power Flow problem is a large-scale and nonlinear programming with a nonconvex feasible region. Seeking for the global optimizer has attracted much attention recently. This paper presents an efficient technique to find the global optimal solution by the Divide-and-Conquer type approach. Convex relaxation of AC OPF in the form of semi-definite programming was performed to find a lower bound for the objective function value at the global solution. The feasible region of OPF was divided into multiple sub-regions with cuts based upon voltage magnitude and voltage angle constraints. The constraints proposed were developed after the projection of the decision variable of the relaxed problem onto the feasible region of the original problem when the relaxed problem produced a solution that violated the rank-1 assumption. Several IEEE model systems were used in this paper to illustrate the effectiveness of the proposed method. Multiple feasible solutions were identified and the global optimal solution with a small gap was found. Challenges in computation costs are discussed and the parallelization of the algorithm to reduce the computation costs is also presented. KeywordsPower System Analysis Computing, Power System Economics, Power System Simulation, Mathematical Programming 1 Gokturk Poyrazoglu is currently with Electric Power Research Institute (EPRI), Charlotte, NC USA. Efficient AC Optimal Power Flow and Global Optimizer Solutions Gokturk Poyrazoglu, HyungSeon Oh 1 The Department of Electrical Engineering, University at Buffalo, Buffalo, NY 14260 USA, gokturkp@buffalo.edu 2 The Department of Electrical Engineering, University at Buffalo, Buffalo, NY 14260 USA, hso1@buffalo.edu 3 Corresponding author |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://best.eng.buffalo.edu/Publication/Submitted/Efficient%20AC%20Optimal%20Power%20Flow.pdf |
| Alternate Webpage(s) | http://www.eng.buffalo.edu/Research/BEST/Research/Fall%202015/9_30_2015.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
