Matched disturbance rejection for a class of nonlinear systems

J Ferguson, A Donaire, R Ortega… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
In this paper, we present a method to robustify asymptotically stable nonlinear systems by
adding an integral action that rejects unknown additive disturbances. The proposed …

A smooth time–varying pid controller for nonholonomic mobile robots subject to matched disturbances

JG Romero, E Nuño, E Restrepo, R Cisneros… - Journal of Intelligent & …, 2022 - Springer
In this paper we present the design of a robust controller for nonholonomic differential
wheeled mobile robot moving on the plane and subject to constant unknown disturbances …

Robust energy shaping for mechanical systems with dissipative forces and disturbances

A Teimoorzadeh, A Donaire, P Arpenti… - 2022 European …, 2022 - ieeexplore.ieee.org
This paper presents a novel energy shaping-based integral action for mechanical systems
with unknown dissipative forces and matched disturbances. The proposed approach builds …

Passive interconnection interpretation of PID control

J Ferguson, R Mahony - IFAC-PapersOnLine, 2023 - Elsevier
In this paper the application of PID control to passive systems via passive interconnection is
explored. The stability properties of PID control applied to linear systems is well understood …

Experimental control of a‎ f‎ lexible‎ l‎ ink‎ by‎ the‎ method‎ of‎‎ Controlled Lagrangian

M Hemmasian Ettefagh, M Naraghi… - Journal of Theoretical …, 2018 - tava.isav.ir
The Controlled Lagrangian method is a branch of energy shaping methods that is designed
to control underactuated mechanical systems. The method employs the mechanical energy …

[PDF][PDF] Robust Control of Port-Hamiltonian Systems

J Ferguson - 2018 - nova.newcastle.edu.au
The port-Hamiltonian framework, which is utilised for both system modelling and control
design, emphasises the role of physical energy, component interconnections and …