158 citations · 371 across the 20 of their papers we have counts for
22 papers
Invariant Properties of Linear-Iterative Distributed Averaging Algorithms and Application to Error Detection
Christoforos N. Hadjicostis, Alejandro D. Dominguez-Garcia
We consider the problem of average consensus in a distributed system comprising a set of nodes that can exchange information among themselves. We focus on a class of algorithms for…
Auxiliary Signal-Based Distance Protection in Inverter-Dominated Power Systems
Josh A. Taylor, Alejandro D. Domínguez-García
Power system protection schemes today rely on currents rising by several orders of magnitude when faults occur. In inverter-dominated power systems, a fault current might be just a…
Trustworthy Distributed Average Consensus based on Locally Assessed Trust Evaluations
Christoforos N. Hadjicostis, Alejandro D. Dominguez-Garcia
This paper proposes a distributed algorithm for average consensus in a multi-agent system under a fixed bidirectional communication topology, in the presence of malicious agents (n…
An Online Feedback Optimization Approach to Voltage Regulation in Inverter-Based Power Distribution Networks
Alejandro D. Dominguez-Garcia, Madi Zholbaryssov, Temitope Amuda +1
We address the problem of controlling the reactive power setpoints of a set of distributed energy resources (DERs) in a power distribution network so as to mitigate the impact of v…
Integrated System Models for Networks with Generators & Inverters
D. Venkatramanan, Manish K. Singh, Olaolu Ajala +2
Synchronous generators and inverter-based resources are complex systems with dynamics that cut across multiple intertwined physical domains and control loops. Modeling individual g…
Model Reduction for Inverters with Current Limiting and Dispatchable Virtual Oscillator Control
Olaoluwapo Ajala, Minghui Lu, Brian Johnson +2
This paper outlines reduced-order models for grid-forming virtual-oscillator-controlled inverters with nested current- and voltage-control loops, and current-limiting action for ov…
Data-Driven Secondary Control of Distributed Energy Resources
Madi Zholbaryssov, Alejandro D. Dominguez-Garcia
In this paper, we present a data-driven secondary controller for regulating to some desired values several variables of interest in a power system, namely, electrical frequency, vo…
Robust synchronization of electric power generators
Olaoluwapo Ajala, Alejandro Dominguez-Garcia, Daniel Liberzon
We consider the problem of synchronizing two electric power generators, one of which (the leader) is serving a time-varying electrical load, so that they can ultimately be connecte…
Fast Distributed Coordination of Distributed Energy Resources Over Time-Varying Communication Networks
Madi Zholbaryssov, Christoforos N. Hadjicostis, Alejandro D. Dominguez-Garcia
In this paper, we consider the problem of optimally coordinating the response of a group of distributed energy resources (DERs) so they collectively meet the electric power demande…
Distributed Optimal Power Flow Algorithms Over Time-Varying Communication Networks
Madi Zholbaryssov, Alejandro D. Dominguez-Garcia
In this paper, we consider the problem of optimally coordinating the response of a group of distributed energy resources (DERs) in distribution systems by solving the so-called opt…
Data-driven Voltage Regulation in Radial Power Distribution Systems
Hanchen Xu, Alejandro D. Domínguez-García, Venugopal V. Veeravalli +1
In this paper, we develop a data-driven voltage regulation framework for distributed energy resources (DERs) in a balanced radial power distribution system. The objective is to det…
Utilization of Water Supply Networks for Harvesting Renewable Energy
Dariush Fooladivanda, Alejandro D. Domínguez-García, Peter W. Sauer
Renewable surplus power is increasing due to the increasing penetration of these intermittent resources. In practice, electric grid operators either curtail the surplus energy resu…
Optimal Tap Setting of Voltage Regulation Transformers Using Batch Reinforcement Learning
Hanchen Xu, Alejandro D. Domínguez-García, Peter W. Sauer
In this paper, we address the problem of setting the tap positions of load tap changers (LTCs) for voltage regulation in radial power distribution systems under uncertain load dyna…
Data-driven Coordination of Distributed Energy Resources for Active Power Provision
Hanchen Xu, Alejandro D. Domínguez-García, Peter W. Sauer
In this paper, we propose a framework for coordinating distributed energy resources (DERs) connected to a power distribution system, the model of which is not completely known, so…
A library of second-order models for synchronous machines
Olaoluwapo Ajala, Alejandro Dominguez-garcia, Peter Sauer +1
This paper presents a library of second-order models for synchronous machines that can be utilized in power system dynamic performance analysis and control design tasks. The models…
A Data-driven Voltage Control Framework for Power Distribution Systems
Hanchen Xu, Alejandro D. Domínguez-García, Peter W. Sauer
In this paper, we address the problem of coordinating a set of distributed energy resources (DERs) to regulate voltage in power distribution systems to desired levels. To this end,…
Adaptive Coordination of Distributed Energy Resources in Lossy Power Distribution Systems
Hanchen Xu, Alejandro D. Domínguez-García, Peter W. Sauer
This paper is concerned with the problem of coordinating a set of distributed energy resources (DERs) in a lossy power distribution system to provide frequency regulation services…
Stochastic hybrid systems in equilibrium: moment closure, finite-time blowup, and exact solutions
Lee DeVille, Sairaj Dhople, Alejandro Dominguez-Garcia +1
We present a variety of results analyzing the behavior of a class of stochastic processes --- referred to as Stochastic Hybrid Systems (SHSs) --- in or near equilibrium, and determ…
A Local Control Approach to Voltage Regulation in Distribution Networks
Baosen Zhang, Alejandro D. Domiguez-Garcia, David Tse
This paper address the problem of voltage regulation in power distribution networks with deep penetration of distributed energy resources (DERs) without any explicit communication…
An Optimal and Distributed Method for Voltage Regulation in Power Distribution Systems
Baosen Zhang, Albert Y. S. Lam, Alejandro Dominguez-Garcia +1
This paper addresses the problem of voltage regulation in power distribution networks with deep-penetration of distributed energy resources, e.g., renewable-based generation, and s…
Distributed Algorithms for Consensus and Coordination in the Presence of Packet-Dropping Communication Links - Part II: Coefficients of Ergodicity Analysis Approach
Nitin H. Vaidya, Christoforos N. Hadjicostis, Alejandro D. Dominguez-Garcia
In this two-part paper, we consider multicomponent systems in which each component can iteratively exchange information with other components in its neighborhood in order to comput…
Distributed Algorithms for Consensus and Coordination in the Presence of Packet-Dropping Communication Links - Part I: Statistical Moments Analysis Approach
Alejandro D. Dominguez-Garcia, Christoforos N. Hadjicostis, Nitin H. Vaidya
This two-part paper discusses robustification methodologies for linear-iterative distributed algorithms for consensus and coordination problems in multicomponent systems, in which…