no code implementations • 30 Mar 2024 • Robert Parker, Carleton Coffrin
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.
no code implementations • 26 Apr 2023 • Noah Rhodes, Carleton Coffrin, Line Roald
To address this gap, we propose the Security-Constrained Optimal Power Shutoff (SC-OPS) problem which uses post-contingency security constraints to model the impact of unexpected line faults when planning a PSPS.
1 code implementation • 2 Apr 2023 • Mohannad Alkhraijah, Rachel Harris, Carleton Coffrin, Daniel K. Molzahn
This paper presents PowerModelsADA, an open-source framework for solving Optimal Power Flow (OPF) problems using Alternating Distributed Algorithms (ADA).
no code implementations • 5 Apr 2022 • Noah Rhodes, Carleton Coffrin, Line Roald
The prioritization of restoration actions after large power system outages plays a key role in how quickly power can be restored.
no code implementations • 3 Sep 2021 • Jon Nelson, Marc Vuffray, Andrey Y. Lokhov, Tameem Albash, Carleton Coffrin
This work builds on those insights and identifies a class of small hardware-native Ising models that are robust to noise effects and proposes a procedure for executing these models on QA hardware to maximize Gibbs sampling performance.
Combinatorial Optimization Vocal Bursts Intensity Prediction
1 code implementation • 7 Apr 2021 • Jon Nelson, Marc Vuffray, Andrey Y. Lokhov, Carleton Coffrin
Overall, the proposed QASA protocol provides a useful tool for assessing the performance of current and emerging quantum annealing devices.
no code implementations • 16 Dec 2020 • Marc Vuffray, Carleton Coffrin, Yaroslav A. Kharkov, Andrey Y. Lokhov
Drawing independent samples from high-dimensional probability distributions represents the major computational bottleneck for modern algorithms, including powerful machine learning frameworks such as deep learning.
1 code implementation • 29 Apr 2020 • Frederik Geth, Carleton Coffrin, David M Fobes
This paper proposes a simple and flexible storage model for use in a variety of multi-period optimal power flow problems.
1 code implementation • 27 Apr 2020 • Noah Rhodes, David Fobes, Carleton Coffrin, Line Roald
With the escalating frequency of extreme grid disturbances, such as natural disasters, comes an increasing need for efficient recovery plans.
1 code implementation • 20 Apr 2020 • David M. Fobes, Sander Claeys, Frederik Geth, Carleton Coffrin
In this work we introduce PowerModelsDistribution, a free, open-source toolkit for distribution power network optimization, whose primary focus is establishing a baseline implementation of steady-state multi-conductor unbalanced distribution network optimization problems, which includes implementations of Power Flow and Optimal Power Flow problem types.
Computational Engineering, Finance, and Science Systems and Control Signal Processing Systems and Control
1 code implementation • 7 Aug 2019 • Sogol Babaeinejadsarookolaee, Adam Birchfield, Richard D. Christie, Carleton Coffrin, Christopher DeMarco, Ruisheng Diao, Michael Ferris, Stephane Fliscounakis, Scott Greene, Renke Huang, Cedric Josz, Roman Korab, Bernard Lesieutre, Jean Maeght, Daniel K. Molzahn, Thomas J. Overbye, Patrick Panciatici, Byungkwon Park, Jonathan Snodgrass, Ray Zimmerman
Consequently, benchmarking studies using the seminal AC Optimal Power Flow (AC-OPF) problem have emerged as the primary method for evaluating these emerging methods.
Optimization and Control
no code implementations • 4 Jan 2019 • Carleton Coffrin, James Arnold, Stephan Eidenbenz, Derek Aberle, John Ambrosiano, Zachary Baker, Sara Brambilla, Michael Brown, K. Nolan Carter, Pinghan Chu, Patrick Conry, Keeley Costigan, Ariane Eberhardt, David M. Fobes, Adam Gausmann, Sean Harris, Donovan Heimer, Marlin Holmes, Bill Junor, Csaba Kiss, Steve Linger, Rodman Linn, Li-Ta Lo, Jonathan MacCarthy, Omar Marcillo, Clay McGinnis, Alexander McQuarters, Eric Michalak, Arvind Mohan, Matt Nelson, Diane Oyen, Nidhi Parikh, Donatella Pasqualini, Aaron s. Pope, Reid Porter, Chris Rawlings, Hannah Reinbolt, Reid Rivenburgh, Phil Romero, Kevin Schoonover, Alexei Skurikhin, Daniel Tauritz, Dima Tretiak, Zhehui Wang, James Wernicke, Brad Wolfe, Phillip Wolfram, Jonathan Woodring
This report describes eighteen projects that explored how commercial cloud computing services can be utilized for scientific computation at national laboratories.
2 code implementations • 19 Apr 2018 • Ole Kröger, Carleton Coffrin, Hassan Hijazi, Harsha Nagarajan
Nonconvex mixed-integer nonlinear programs (MINLPs) represent a challenging class of optimization problems that often arise in engineering and scientific applications.
Optimization and Control
5 code implementations • arXiv 2018 • Patrick J. Coles, Stephan Eidenbenz, Scott Pakin, Adetokunbo Adedoyin, John Ambrosiano, Petr Anisimov, William Casper, Gopinath Chennupati, Carleton Coffrin, Hristo Djidjev, David Gunter, Satish Karra, Nathan Lemons, Shizeng Lin, Andrey Lokhov, Alexander Malyzhenkov, David Mascarenas, Susan Mniszewski, Balu Nadiga, Dan O'Malley, Diane Oyen, Lakshman Prasad, Randy Roberts, Phil Romero, Nandakishore Santhi, Nikolai Sinitsyn, Pieter Swart, Marc Vuffray, Jim Wendelberger, Boram Yoon, Richard Zamora, Wei Zhu
As quantum computers become available to the general public, the need has arisen to train a cohort of quantum programmers, many of whom have been developing classical computer programs for most of their careers.
Emerging Technologies Quantum Physics
2 code implementations • 6 Nov 2017 • Carleton Coffrin, Russell Bent, Kaarthik Sundar, Yeesian Ng, Miles Lubin
This work provides a brief introduction to the design of PowerModels, validates its implementation, and demonstrates its effectiveness with a proof-of-concept study analyzing five different formulations of the Optimal Power Flow problem.
Optimization and Control Computational Engineering, Finance, and Science
no code implementations • 2 Jul 2017 • Carleton Coffrin, Harsha Nagarajan, Russell Bent
The recent emergence of novel computational devices, such as adiabatic quantum computers, CMOS annealers, and optical parametric oscillators, present new opportunities for hybrid-optimization algorithms that are hardware accelerated by these devices.
2 code implementations • 18 Apr 2017 • Kaarthik Sundar, Carleton Coffrin, Harsha Nagarajan, Russell Bent
A general cutting-plane algorithm is proposed to solve the convex relaxation and linear approximations of the $N$-$k$ problem.
Systems and Control
1 code implementation • 27 Feb 2015 • Carleton Coffrin, Hassan L. Hijazi, Pascal Van Hentenryck
Convex relaxations of the power flow equations and, in particular, the Semi-Definite Programming (SDP) and Second-Order Cone (SOC) relaxations, have attracted significant interest in recent years.
Computational Engineering, Finance, and Science Optimization and Control
no code implementations • 3 Nov 2014 • Carleton Coffrin, Dan Gordon, Paul Scott
In recent years the power systems research community has seen an explosion of work applying operations research techniques to challenging power network optimization problems.
no code implementations • 16 Jun 2012 • Carleton Coffrin, Pascal Van Hentenryck
Linear active-power-only DC power flow approximations are pervasive in the planning and control of power systems.