10 citations · 52 across the 12 of their papers we have counts for
13 papers
Aclass of incrementally scattering-passive nonlinear systems
Shantanu Singh, George Weiss, Marius Tucsnak
We investigate a special class of nonlinear infinite dimensional systems. These are obtained by subtracting a nonlinear maximal monotone (possibly multi-valued) operator M from the…
Second order systems on Hilbert spaces with nonlinear damping
Shantanu Singh, George Weiss
We investigate a special class of nonlinear infinite dimensional systems. These systems are obtained by modifying the second order differential equation that is part of the descrip…
PI control of stable nonlinear plants using projected dynamical systems
Pietro Lorenzetti, George Weiss
This paper presents a novel anti-windup proportional-integral controller for stable multi-input multi-output nonlinear plants. We use tools from projected dynamical systems theory…
Strong stabilization of (almost) impedance passive systems by static output feedback
Ruth Curtain, George Weiss
The plant to be stabilized is a system node with generating triple and transfer function , where generates a contraction semigroup on the Hilbert space …
The equilibrium points and stability of grid-connected synchronverters
Pietro Lorenzetti, Zeev Kustanovich, Shivprasad Shivratri +1
Virtual synchronous machines are inverters with a control algorithm that causes them to behave towards the power grid like synchronous generators. A popular way to realize such inv…
Saturating PI control of stable nonlinear systems using singular perturbations
Pietro Lorenzetti, George Weiss
This paper presents an anti-windup PI controller, using a saturating integrator, for a single-input single-output stable nonlinear plant, whose steady-state input-output map is inc…
Stabilizability properties of a linearized water waves system
Pei Su, Marius Tucsnak, George Weiss
We consider the strong stabilization of small amplitude gravity water waves in a two dimensional rectangular domain. The control acts on one lateral boundary, by imposing the horiz…
Solving the regulator problem for the one-dimensional Schrodinger equation via backstepping
Hua-Cheng Zhou, George Weiss
We investigate the regulator problem (tracking and disturbance rejection) for a system (plant) described by a boundary controlled anti-stable linear one-dimensional Schrodinger equ…
Minimal order controllers for output regulation of nonlinear systems
Vivek Natarajan, George Weiss
This paper is about the nonlinear local error feedback regulator problem. The plant is a nonlinear finite-dimensional system with a single control input and a single output and it…
Output feedback exponential stabilization for 1-D unstable wave equations with boundary control matched disturbance
Hua-Cheng Zhou, George Weiss
We study the output feedback exponential stabilization of a one-dimensional unstable wave equation, where the boundary input, given by the Neumann trace at one end of the domain, i…
Output feedback exponential stabilization of a nonlinear 1-D wave equation with boundary input
Hua-Cheng Zhou, George Weiss
This paper develops systematically the output feedback exponential stabilization for a one-dimensional unstable/anti-stable wave equation where the control boundary suffers from bo…
Almost global asymptotic stability of a grid-connected synchronous generator
Vivek Natarajan, George Weiss
We study the global asymptotic behavior of a grid-connected constant field current synchronous generator (SG). The grid is regarded as an "infinite bus", i.e. a three-phase AC volt…
Stability of the integral control of stable nonlinear systems
George Weiss, Vivek Natarajan
PI controllers are the most widespread type of controllers and there is an intuitive understanding that if their gains are sufficiently small and of the correct sign, then they alw…