Výsledky vyhledávání - "PARKER, ROBERT A."

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Formulations and scalability of neural network surrogates in nonlinear optimization problems

Autor: Parker, Robert B., Dowson, Oscar, LoGiudice, Nicole, Garcia, Manuel, Bent, Russell

We compare full-space, reduced-space, and gray-box formulations for representing trained neural networks in nonlinear constrained optimization problems. We test these formulations on a transient stability-constrained, security-constrained alternating

Externí odkaz: http://arxiv.org/abs/2412.11403

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Harmonically Induced Shape Morphing of Bistable Buckled Beam with Static Bias

Autor: Hasan, Md Nahid, Paul, Sharat, Greenwood, Taylor E., Parker, Robert G., Kong, Yong Lin, Wang, Pai

We investigate the effect of a constant static bias force on the dynamically induced shape morphing of a pre-buckled bistable beam, focusing on the beam's ability to change its vibration to be near different stable states under harmonic excitation. O

Externí odkaz: http://arxiv.org/abs/2409.18942

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Applications of Lifted Nonlinear Cuts to Convex Relaxations of the AC Power Flow Equations

Autor: Bugosen, Sergio I., Parker, Robert B., Coffrin, Carleton

We demonstrate that valid inequalities, or lifted nonlinear cuts (LNC), can be projected to tighten the Second Order Cone (SOC), Convex DistFlow (CDF), and Network Flow (NF) relaxations of the AC Optimal Power Flow (AC-OPF) problem. We conduct experi

Externí odkaz: http://arxiv.org/abs/2404.17541

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Managing power balance and reserve feasibility in the AC unit commitment problem

Autor: Parker, Robert, Coffrin, Carleton

Incorporating the AC power flow equations into unit commitment models has the potential to avoid costly corrective actions required by less accurate power flow approximations. However, research on unit commitment with AC power flow constraints has be

Externí odkaz: http://arxiv.org/abs/2404.00200

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