![]() |
![]() |
University of Birmingham > Talks@bham > Optimisation and Numerical Analysis Seminars > Polynomial optimisation in power systems at IBM Research
Polynomial optimisation in power systems at IBM ResearchAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Sergey Sergeev. In power systems, problems that model alternating-current transmission constraints are of a great and growing importance, but notoriously difficult due to their non-convexity. We have shown —a variety of hierarchies of convexifications, whose optima converge to the global optimum of the non-convex problem —custom first- and second-order methods for solving the convexifications, which are competitive with leading heuristics —methods for switching from solving the convexification using the first-order methods (with trivial per-iteration time and memory requirements, but poor rates of convergence) to any second-order methods on the non-convex problem (with local quadratic convergence) based on Smale’s work in algebraic geometry. This allows one to tackle large-scale instances in practice and to guarantee global convergence in theory. This summarises recent papers in IEEE T . Power Systems [31(1): 539–546], IEEE T . Smart Grid [8(6): 2988-2998], and Optimization Methods and Software [32(4): 849-871], which are joint work with Bissan Ghaddar, Alan Liddell, Jie Liu, Martin Mevissen, and Martin Takac. This talk is part of the Optimisation and Numerical Analysis Seminars series. This talk is included in these lists:
Note that ex-directory lists are not shown. |
Other listsWhat's on in Physics? Type the title of a new list here Analysis Reading SeminarOther talksTBA Life : it’s out there, but what and why ? Ultrafast Spectroscopy and Microscopy as probes of Energy Materials TBA TBA Waveform modelling and the importance of multipole asymmetry in Gravitational Wave astronomy |