74 citations · 246 across the 43 of their papers we have counts for
11 papers · 1 filter
Load Block Modeling in Distribution Systems: Network Reconfiguration for Load Restoration
David M. Fobes, Harsha Nagarajan, Manuel Garcia +2
The distribution system restoration (DSR) problem has received considerable attention over the last decade or more. Solutions to the DSR problem identify the best set or sequence o…
Multi-Region Optimal Energy Storage Arbitrage
Md Umar Hashmi, Harsha Nagarajan, Dirk Van Hertem1
The increasing interconnection of power systems through AC and DC links enables energy storage units to access multiple electricity markets yet most existing arbitrage models remai…
Sparse Neural Approximations for Bilevel Adversarial Problems in Power Grids
Young-ho Cho, Harsha Nagarajan, Deepjyoti Deka +1
The adversarial worst-case load shedding (AWLS) problem is pivotal for identifying critical contingencies under line outages. It is naturally cast as a bilevel program: the upper l…
Spectral Graph Theoretic Methods for Enhancing Network Robustness in Robot Localization
Neelkamal Somisetty, Harsha Nagarajan, Swaroop Darbha
This paper addresses the optimization of edge-weighted networks by maximizing algebraic connectivity to enhance network robustness. Motivated by the need for precise robot position…
Optimal Robust Network Design: Formulations and Algorithms for Maximizing Algebraic Connectivity
Neelkamal Somisetty, Harsha Nagarajan, Swaroop Darbha
This paper focuses on designing edge-weighted networks, whose robustness is characterized by maximizing algebraic connectivity, or the second smallest eigenvalue of the Laplacian m…
Probabilistic - Failure-Identification for Power Systems
Kaarthik Sundar, Carleton Coffrin, Harsha Nagarajan +1
This paper considers a probabilistic generalization of the - failure-identification problem in power transmission networks, where the probability of failure of each component…
Optimal Topology Design for Disturbance Minimization in Power Grids
Deepjyoti Deka, Harsha Nagarajan, Scott Backhaus
The transient response of power grids to external disturbances influences their stable operation. This paper studies the effect of topology in linear time-invariant dynamics of dif…
Chance-Constrained Unit Commitment with N-1 Security and Wind Uncertainty
Kaarthik Sundar, Harsha Nagarajan, Line Roald +3
As renewable wind energy penetration rates continue to increase, one of the major challenges facing grid operators is the question of how to control transmission grids in a reliabl…
Optimal Transmission Line Switching under Geomagnetic Disturbances
Mowen Lu, Harsha Nagarajan, Emre Yamangil +3
In recent years, there have been increasing concerns about how geomagnetic disturbances (GMDs) impact electrical power systems. Geomagnetically-induced currents (GICs) can saturate…
Tightening McCormick Relaxations for Nonlinear Programs via Dynamic Multivariate Partitioning
Harsha Nagarajan, Mowen Lu, Emre Yamangil +1
In this work, we propose a two-stage approach to strengthen piecewise McCormick relaxations for mixed-integer nonlinear programs (MINLP) with multi-linear terms. In the first stage…
Unit Commitment with N-1 Security and Wind Uncertainty
Kaarthik Sundar, Harsha Nagarajan, Miles Lubin +4
As renewable wind energy penetration rates continue to increase, one of the major challenges facing grid operators is the question of how to control transmission grids in a reliabl…