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Galerkin Method and Weighting Functions Applied to Nonlinear H(infinity) Control with Output Feedback
(SAGE PUBLICATIONS LTD, 2010)
This paper considers two aspects of the nonlinear H(infinity) control problem: the use of weighting functions for performance and robustness improvement, as in the linear case, and the development of a successive Galerkin ...
Transport of localized and extended excitations in a nonlinear Anderson model
(1998)
We study the propagation of electrons (or excitations) through a one-dimensional tight-binding chain in the simultaneous presence of nonlinearity and diagonal disorder. The evolution of the system is given by a disordered ...
On a non-ideal magnetic levitation system: nonlinear dynamical behavior and energy harvesting analyses
(Springer, 2019-03-01)
Nowadays, a novelty of devices that use magnetic restoring forces to generate oscillations has increased substantially. These kinds of devices have been commonly used to energy harvesting area. Therefore, in this paper, ...
Nontrivial solutions for a mixed boundary problem for Schrödinger equations with an external magnetic field
(Juliusz Schauder Centre for Nonlinear StudiesTorun, 2015)
We study the existence of solutions for a class of nonlinear Schrödinger equations involving a magnetic field with mixed Dirichlet-Neumann boundary conditions. We use Lusternik-Shnirelman category and the Morse theory to ...
Nonlinear observer-based control for PMSG wind turbine
(Pergamon-Elsevier Science Ltd, 2016-10)
This paper introduces a mechanical sensorless control strategy to be used in variable speed wind energy conversion systems based on permanent magnet synchronous generators. The goal of the control strategy is to track the ...
Fixed-point DSP implementation of nonlinear H(infinity) controller for large gap electromagnetic suspension system
(PERGAMON-ELSEVIER SCIENCE LTD, 2009)
Electromagnetic suspension systems are inherently nonlinear and often face hardware limitation when digitally controlled. The main contributions of this paper are: the design of a nonlinear H(infinity) controller. including ...
Nonlinear (magnetic) correction to the field of a static charge in an external field
(AMER PHYSICAL SOCCOLLEGE PK, 2012)
We find the first nonlinear correction to the field produced by a static charge at rest in a background constant magnetic field. It is quadratic in the charge and purely magnetic. The third-rank polarization tensor-the ...
Plasma confinement in tokamaks with robust torus
(2011-03-01)
We present a non-linear symplectic map that describes the alterations of the magnetic field lines inside the tokamak plasma due to the presence of a robust torus (RT) at the plasma edge. This RT prevents the magnetic field ...