44 citations · 131 across the 43 of their papers we have counts for
28 papers · 1 filter
Model-Based and Data-Driven Hierarchical Control and Topology Co-Design for Robust Networked Systems
Shirantha Welikala, Zihao Song, Hai Lin +1
In this paper, we consider a class of networked systems comprising an interconnected set of linear subsystems, disturbance inputs, and performance outputs. Using dissipativity theo…
Funnel-Based Online Recovery Control for Nonlinear Systems With Unknown Dynamics
Zihao Song, Shirantha Welikala, Panos J. Antsaklis +1
In this paper, we focus on recovery control of nonlinear systems from attacks or failures. The main challenges of this problem lie in (1) learning the unknown dynamics caused by at…
Dissipativity-Based Synthesis of Distributed Control and Communication Topology Co-Design for AC Microgrids
Mohammad Javad Najafirad, Shirantha Welikala, Lei Wu +1
This paper introduces a dissipativity-based framework for the joint design of distributed controllers and communication topologies in AC microgrids (MGs), providing robust performa…
Hierarchical Analysis and Control of Epidemic Spreading over Networks using Dissipativity and Mesh Stability
Shirantha Welikala, Hai Lin, Panos J. Antsaklis
Analyzing and controlling spreading processes are challenging problems due to the involved non-linear node (subsystem) dynamics, unknown disturbances, complex interconnections, and…
Mesh Stability Guaranteed Rigid Body Networks Using Control and Topology Co-Design
Zihao Song, Shirantha Welikala, Panos J. Antsaklis +1
Merging and splitting are of great significance for rigid body networks in making such networks reconfigurable. The main challenges lie in simultaneously ensuring the compositional…
Graph Neural Network-Based Distributed Optimal Control for Linear Networked Systems: An Online Distributed Training Approach
Zihao Song, Shirantha Welikala, Panos J. Antsaklis +1
In this paper, we consider the distributed optimal control problem for discrete-time linear networked systems. In particular, we are interested in learning distributed optimal cont…
Inventory Consensus Control in Supply Chain Networks using Dissipativity-Based Control and Topology Co-Design
Shirantha Welikala, Hai Lin, Panos J. Antsaklis
Recent global and local phenomena have exposed vulnerabilities in critical supply chain networks (SCNs), drawing significant attention from researchers across various fields. Typic…
Dissipativity-Based Decentralized Co-Design of Distributed Controllers and Communication Topologies for Vehicular Platoons
Shirantha Welikala, Zihao Song, Panos J. Antsaklis +1
Vehicular platoons provide an appealing option for future transportation systems. Most of the existing work on platoons separated the design of the controller and its communication…
Smooth Robustness Measures for Symbolic Control Via Signal Temporal Logic
Shirantha Welikala, Hai Lin, Panos J. Antsaklis
Symbolic control problems aim to synthesize control policies for dynamical systems under complex temporal specifications. For such problems, Signal Temporal Logic (STL) is increasi…
Decentralized and Compositional Interconnection Topology Synthesis for Linear Networked Systems
Shirantha Welikala, Hai Lin, Panos J. Antsaklis
In this paper, we consider networked systems comprised of interconnected sets of linear subsystems and propose a decentralized and compositional approach to stabilize or dissipativ…
Centralized and Decentralized Techniques for Analysis and Synthesis of Non-Linear Networked Systems
Shirantha Welikala, Hai Lin, Panos J. Antsaklis
In this paper, we develop centralized and decentralized techniques for analyzing and synthesizing networked systems comprised of interconnected sets of non-linear subsystems - only…
Distributed Adaptive Backstepping Control for Vehicular Platoons with Mismatched Disturbances Using Vector String Lyapunov Functions
Zihao Song, Shirantha Welikala, Panos J. Antsaklis +1
In this paper, we consider the problem of platooning control with mismatched disturbances using the distributed adaptive backstepping method. The main challenges are: (1) maintaini…
A Decentralized Analysis and Control Synthesis Approach for Networked Systems with Arbitrary Interconnections
Shirantha Welikala, Hai Lin, Panos Antsaklis
This paper considers the problem of decentralized analysis and control synthesis to verify and ensure properties like stability and dissipativity of a large-scale networked system…
On-line Estimation of Stability and Passivity Metrics
Shirantha Welikala, Hai Lin, Panos J. Antsaklis
We consider the problem of on-line evaluation of critical characteristic parameters such as the L_2-gain (L2G), input feedforward passivity index (IFP) and output feedback passivit…
Robust Approximate Simulation for Hierarchical Control of Piecewise Affine Systems under Bounded Disturbances
Zihao Song, Vince Kurtz, Shirantha Welikala +2
Piecewise affine (PWA) systems are widely applied in many practical cases such as the control of nonlinear systems and hybrid dynamics. However, most of the existing PWA control me…
Analysis of Two-Dimensional Feedback Systems over Networks Using Dissipativity
Yang Yan, Lanlan Su, Vijay Gupta +1
This paper investigates the closed-loop stability of two-dimensional (2-D) feedback systems across a digital communication network by introducing the tool of dissip…
Feedback Passivation of Linear Systems with Fixed-Structured Controllers
Lanlan Su, Vijay Gupta, Panos Antsaklis
This paper addresses the problem of designing an optimal output feedback controller with a specified controller structure for linear time-invariant (LTI) systems to maximize the pa…
Recent Advances in Analysis and Design of Cyber-physical Systems using Passivity Indices
Hasan Zakeri, Panos J. Antsaklis
Analysis and resilient design of Cyber-physical Systems have greatly benefited from energy based concepts of passivity and dissipativity. Recently, there has been much research dev…
A Data-driven Adaptive Controller Reconfiguration for Fault Mitigation: A Passivity Approach
Hasan Zakeri, Panos J. Antsaklis
This paper presents a new data-driven fault identification and controller reconfiguration algorithm. The presented algorithm relies only on the system's input and output data, and…
Sequential Synthesis of Distributed Controllers for Cascade Interconnected Systems
Etika Agarwal, S. Sivaranjani, Vijay Gupta +1
We consider the problem of designing distributed controllers to ensure passivity of a large-scale interconnection of linear subsystems connected in a cascade topology. The control…
Distributed Synthesis of Local Controllers for Networked Systems with Arbitrary Interconnection Topologies
Etika Agarwal, S. Sivaranjani, Vijay Gupta +1
We consider the problem of designing distributed controllers to guarantee dissipativity of a networked system comprised of dynamically coupled subsystems. We require that the contr…
Passivity and Passivity Indices of Nonlinear Systems Under Operational Limitations using Approximations
Hasan Zakeri, Panos J. Antsaklis
In this paper, we will discuss how operational limitations affect input-output behaviours of the system. In particular, we will provide formulations for passivity and passivity ind…
Distributed Mixed Voltage Angle and Frequency Droop Control of Microgrid Interconnections with Loss of Distribution-PMU Measurements
S Sivaranjani, Etika Agarwal, Vijay Gupta +2
Recent advances in distribution-level phasor measurement unit (D-PMU) technology have enabled the use of voltage phase angle measurements for direct load sharing control in distrib…
Mixed Voltage Angle and Frequency Droop Control for Transient Stability of Interconnected Microgrids with Loss of PMU Measurements
S Sivaranjani, Etika Agarwal, Le Xie +2
We consider the problem of guaranteeing transient stability of a network of interconnected angle droop controlled microgrids, where voltage phase angle measurements from phasor mea…