10 papers
Frequency Response of Nonlinear Systems: Notions, Analysis, and Graphical Representation
Alessio Moreschini, Matteo Scandella
The invariance principle, through which the steady-state behavior of nonlinear systems was introduced by Isidori and Byrnes, is leveraged in this article to bring forth a unifying…
A Functional Learning Approach for Team-Optimal Traffic Coordination
Weihao Sun, Gehui Xu, Alessio Moreschini +2
In this paper, we develop a kernel-based policy iteration functional learning framework for computing team-optimal strategies in traffic coordination problems. We consider a multi-…
Globally Stable Discrete Time PID Passivity-based Control of Power Converters: Simulation and Experimental Results
Alessio Moreschini, Wei He, Romeo Ortega +2
The key idea behind PID Passivity-based Control (PID-PBC) is to leverage the passivity property of PIDs (for all positive gains) and wrap the PID controller around a passive output…
Data-Driven Adjustable Robust Optimization
Xiaoxing Ren, Alessio Moreschini, Zhongda Chu +2
In this paper, we develop a two-stage data-driven approach to address the adjustable robust optimization problem, where the uncertainty set is adjustable to manage infeasibility ca…
Fault Localisation in Infinite-Dimensional Linear Electrical Networks
Daniel Selvaratnam, Alessio Moreschini, Amritam Das +2
We present a novel fault localisation methodology for linear time-invariant electrical networks with infinite-dimensional edge dynamics and uncertain fault dynamics. The theory acc…
Frequency-Domain Bounds for the Multiconductor Telegrapher's Equation
Daniel Selvaratnam, Alessio Moreschini, Amritam Das +2
We establish mathematical bounds on the chain, ABCD and immittance matrices of a multiconductor transmission line, based on the Telegrapher's equation. Closed-form expressions for…
A polynomial approximation scheme for nonlinear model reduction by moment matching
Carlos Doebeli, Alessandro Astolfi, Dante Kalise +3
We propose a procedure for the numerical approximation of invariance equations arising in the moment matching technique associated with reduced-order modeling of high-dimensional d…
Krasovskii Passivity for Sampled-data Stabilization and Output Consensus
Yu Kawano, Alessio Moreschini, Michele Cucuzzella
In this paper, we establish the novel concept of Krasovskii passivity for sampled discrete-time nonlinear systems, enabling Krasovskii-passivity-based control design under sampling…
Quaternion-based attitude stabilization via discrete-time IDA-PBC
Mattia Mattioni, Alessio Moreschini, Salvatore Monaco +1
In this paper, we propose a new sampled-data controller for stabilization of the attitude dynamics at a desired constant configuration. The design is based on discrete-time interco…
On feedback passivation under sampling
Mattia Mattioni, Alessio Moreschini, Salvatore Monaco +1
In this paper we show that feedback passivation under sampling can be preserved under digital control through the redefinition of a passifying output map which depends on the sampl…