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ON DIFFERENTIALLY FLAT NONLINEAR SYSTEMS

IFAC Proceedings Volumes, 1992
Abstract A differential field characterization of a class of dynamic feedback linearizable systems is given via the notion of differentially flat systems. For such systems, the linearizing dynamic feedback is obtained as an endogeneous dynamic feedback. Examples of flat systems are often encountered in practice.
M. Fliess, J. Lévine, P. Martin, P. Rouchon   +3 more
openaire   +1 more source

Symbolic control for underactuated differentially flat systems [PDF]

Proceedings 2006 IEEE International Conference on Robotics and Automation, 2006. ICRA 2006., 2006
In this paper we address the problem of generating input plans to steer complex dynamical systems in an obstacle-free environment. Plans considered admit a finite description length and are constructed by words on an alphabet of input symbols, which could be e.g.
Adriano Fagiolini, Luca Greco 0003, Antonio Bicchi, Benedetto Piccoli, Alessia Marigo   +4 more
openaire   +2 more sources

Flatness-based linear active disturbance rejection control for tower crane [PDF]

FME Transactions
Controlling tower cranes presents substantial challenges due to their complexity, nonlinearity, and under-actuated dynamics. This paper introduces a control strategy integrating Linear Active Disturbance Rejection Control (LADRC) with differential ...
Sev Eunet Rs, Tuan Anh Nguyen, Minh Duc Duong   +2 more
doaj   +1 more source

Nonlinear Position Control Using Differential Flatness Concept with Load Torque Observer for Electro Hydraulic Actuators with Sinusoidal Load Torque

Mathematics, 2020
We propose a nonlinear position control using a differential flatness concept with a load torque observer to compensate for the sinusoidal load torque in electro-hydraulic actuators (EHAs) EHAs.
Sangmin Suh, Wonhee Kim
doaj   +1 more source

Adaptive Neural Trajectory Tracking Control for Synchronous Generators in Interconnected Power Systems

Applied Sciences, 2022
The synchronous generator is one of the most important active components in current electric power systems. New control methods should be designed to guarantee an efficient dynamic performance of the synchronous generator in strongly interconnected ...
Ruben Tapia-Olvera, Francisco Beltran-Carbajal, Antonio Valderrabano-Gonzalez   +2 more
doaj   +1 more source

The Assessment of Straightness and Flatness Errors Using Particle Swarm Optimization [PDF]

, 2013
The straightness and flatness errors are generally assessed by using the Least Squares Method (LSM). However, the results obtained from LSM often overestimate the tolerances, and are not consistent with the ISO standards’ definitions.
Cui, Changcai, Jiang, X., Fan, W., Cui, C., Cui, C.uk, Li, T., Ye, Ruifang, Blunt, L.A., Blunt, L. A., Huang, H., Ye, R.   +10 more
core   +1 more source

Symplectic Flatness and Twisted Primitive Cohomology [PDF]

, 2022
We introduce the notion of symplectic flatness for connections and fiber bundles over symplectic manifolds. Given an $A_\infty$-algebra, we present a flatness condition that enables the twisting of the differential complex associated with the $A_\infty ...
Tseng, Li-Sheng, Zhou, Jiawei
core   +1 more source

Flatness-Based Control for the Maximum Power Point Tracking in a Photovoltaic System

Energies, 2019
Solar energy harvesting using Photovoltaic (PV) systems is one of the most popular sources of renewable energy, however the main drawback of PV systems is their low conversion efficiency.
Leopoldo Gil-Antonio, Belem Saldivar, Otniel Portillo-Rodríguez, Juan Carlos Ávila-Vilchis, Pánfilo Raymundo Martínez-Rodríguez, Rigoberto Martínez-Méndez   +5 more
doaj   +1 more source

Tracking Control for Mobile Robots Considering the Dynamics of All Their Subsystems: Experimental Implementation

Complexity, 2017
The trajectory tracking task in a wheeled mobile robot (WMR) is solved by proposing a three-level hierarchical controller that considers the mathematical model of the mechanical structure (differential drive WMR), actuators (DC motors), and power stage ...
José Rafael García-Sánchez, Ramón Silva-Ortigoza, Salvador Tavera-Mosqueda, Celso Márquez-Sánchez, Victor Manuel Hernández-Guzmán, Mayra Antonio-Cruz, Gilberto Silva-Ortigoza, Hind Taud   +7 more
doaj   +1 more source

Robust Flat Filtering Control of a Two Degrees of Freedom Helicopter Subject to Tail Rotor Disturbances

International Journal of Applied Mathematics and Computer Science, 2023
This article deals with modelling and a flatness-based robust trajectory tracking scheme for a two degrees of freedom helicopter, which is subject to four types of tail rotor disturbances to validate the control scheme robustness. A mathematical model of
Sánchez-Meza Victor-Gabriel, Lozano-Hernández Yair, Gutiérrez-Frías Octavio, Lozada-Castillo Norma, Luviano-Juárez Alberto   +4 more
doaj   +1 more source