no code implementations • 19 Dec 2024 • Mohammed Alyaseen, Nikolay Atanasov, Jorge Cortes
These functions allow system trajectories to leave a component of the nonsmooth safe set to transition to a different one.
no code implementations • 17 Oct 2024 • Michael McCreesh, Erfan Nozari, Jorge Cortes
Over the past two decades, an increasing array of control-theoretic methods have been used to study the brain as a complex dynamical system and better understand its structure-function relationship.
no code implementations • 10 Sep 2024 • Yiting Chen, Pol Mestres, Jorge Cortes, Emiliano Dall'Anese
While this approach effectively guarantees safety for a given CBF, the CBF-based control law can introduce undesirable equilibrium points (i. e., points that are not equilibria of the original system); open questions remain on how the choice of CBF influences the number and locations of undesirable equilibria and, in general, the dynamics of the closed-loop system.
no code implementations • 2 Aug 2024 • Yiting Chen, Pol Mestres, Emiliano Dall'Anese, Jorge Cortes
We provide a sufficient and necessary condition for the existence of undesirable equilibria and show that the Jacobian matrix of the closed-loop system evaluated at an undesirable equilibrium always has a nonpositive eigenvalue.
no code implementations • 11 Jul 2024 • Bhathiya Rathnayake, Mamadou Diagne, Jorge Cortes, Miroslav Krstic
Rather than insisting on a strictly monotonic decrease of the Lyapunov function for the closed-loop system, P-ETC allows the Lyapunov function to increase as long as it remains below an acceptable performance-barrier.
1 code implementation • 3 Apr 2024 • Kehan Long, Jorge Cortes, Nikolay Atanasov
This article presents novel methods for synthesizing distributionally robust stabilizing neural controllers and certificates for control systems under model uncertainty.
no code implementations • 19 Dec 2023 • Antonin Colot, Yiting Chen, Bertrand Cornelusse, Jorge Cortes, Emiliano Dall'Anese
This paper considers the problem of controlling inverter-interfaced distributed energy resources (DERs) in a distribution grid to solve an AC optimal power flow (OPF) problem in real time.
no code implementations • 29 Nov 2023 • Yiting Chen, Liliaokeawawa Cothren, Jorge Cortes, Emiliano Dall'Anese
This paper considers the problem of regulating a dynamical system to equilibria that are defined as solutions of an input- and state-constrained optimization problem.
no code implementations • 27 Aug 2023 • Xuan Wang, Jorge Cortes
This paper studies the data-driven reconstruction of firing rate dynamics of brain activity described by linear-threshold network models.
no code implementations • 7 Jul 2022 • Zhenyi Yuan, Changhong Zhao, Jorge Cortes
This paper proposes a reinforcement learning-based approach for optimal transient frequency control in power systems with stability and safety guarantees.
no code implementations • 9 Mar 2022 • Priyank Srivastava, Patricia Hidalgo-Gonzalez, Jorge Cortes
Declines in cost and concerns about the environmental impact of traditional generation have boosted the penetration of renewables and non-conventional distributed energy resources into the power grid.
no code implementations • 11 Sep 2021 • Priyank Srivastava, Guido Cavraro, Jorge Cortes
This paper proposes decentralized resource-aware coordination schemes for solving network optimization problems defined by objective functions which combine locally evaluable costs with network-wide coupling components.
no code implementations • 21 Jul 2021 • Prasad Vilas Chanekar, Jorge Cortes
This paper develops tools to quantify the importance of agent interactions and its impact on global performance metrics for networks modeled as linear time-invariant systems.
no code implementations • 14 May 2021 • Shenyu Liu, Sonia Martinez, Jorge Cortes
This paper studies network resilience against structured additive perturbations to its topology.
no code implementations • 11 Mar 2021 • Priyank Srivastava, Jorge Cortes
The expressions of these Lagrange multiplier functions, which depend upon the gradients of the objective function and the constraints, can make the unconstrained penalty function non-convex in general even if the original problem is convex.
Optimization and Control Systems and Control Systems and Control
no code implementations • 27 Feb 2021 • Erfan Nozari, Robert Planas, Jorge Cortes
Exploiting the switched-affine nature of this dynamics, we obtain various necessary and/or sufficient conditions on the network structure and its external input for the existence of oscillations in (i) two-dimensional excitatory-inhibitory networks (E-I pairs), (ii) networks with one inhibitory but arbitrary number of excitatory nodes, (iii) purely inhibitory networks with an arbitrary number of nodes, and (iv) networks of E-I pairs.
no code implementations • 8 Nov 2020 • Priyank Srivastava, Chin-Yao Chang, Jorge Cortes
In this paper, we propose a framework for collections of DERs, combined to form microgrids and controlled by aggregators, to participate in frequency regulation markets.
no code implementations • 8 Nov 2020 • Priyank Srivastava, Jorge Cortes
This paper proposes a distributed algorithm for a network of agents to solve an optimization problem with separable objective function and locally coupled constraints.
Optimization and Control Multiagent Systems
no code implementations • 15 Jul 2020 • Tor Anderson, Manasa Muralidharan, Priyank Srivastava, Hamed Valizadeh Haghi, Jorge Cortes, Jan Kleissl, Sonia Martinez, Byron Washom
This paper presents one of the first real-life demonstrations of coordinated and distributed resource control for secondary frequency response in a power distribution grid.
no code implementations • L4DC 2020 • Ahmed Allibhoy, Jorge Cortes
We consider a networked linear system where system matrices are unknown to the individual agents but sampled data is available to them.
no code implementations • NeurIPS 2019 • Miguel Vaquero, Jorge Cortes
A recent body of exciting work seeks to shed light on the behavior of accelerated methods in optimization via high-resolution differential equations.
1 code implementation • 1 Oct 2018 • Jorge Cortes, David M. Kipping
White dwarfs are one of the few types of stellar objects for which we know almost nothing about the possible existence of companion planets.
Earth and Planetary Astrophysics