Sliding Mode Thau Observer for Actuator Fault Diagnosis of Quadcopter UAVs [PDF]
Applied Sciences (Switzerland), 2018 Fault diagnosis (FD) is one of the main roles of fault-tolerant control (FTC) systems. An FD should not only identify the presence of a fault, but also quantify its magnitude and location.
Ngoc Phi Nguyen, Sung Kyung Hong
exaly +4 more sources
Mathematical and Computational ApplicationsIn this work, a Thau observer is designed based on a nonlinear third-order mathematical model described by ODEs, which captures the dynamics among insulin levels, β-cells, and glucose concentration.
Diana Gamboa +2 more
doaj +3 more sources
Actuator Fault Detection and Fault-Tolerant Control for Hexacopter [PDF]
Sensors, 2019 In this paper, fault detection and fault-tolerant control strategies are proposed to handle the issues of both actuator faults and disturbances in a hexacopter.
Ngoc Phi Nguyen +2 more
doaj +2 more sources
Systematic Fault Tolerant Control Based on Adaptive Thau Observer Estimation for Quadrotor Uavs [PDF]
International Journal of Applied Mathematics and Computer Science, 2015 A systematic fault tolerant control (FTC) scheme based on fault estimation for a quadrotor actuator, which integrates normal control, active and passive FTC and fault parking is proposed in this paper.
Cen Zhaohui +2 more
doaj +2 more sources
Modeling and Fault Detection of Quadrotor with Rotor Thrust Deviation Fault [PDF]
مجله مدل سازی در مهندسی, 2021 In this study, modeling and fault detection of a novel faulty quadrotor is presented. It is assumed that a quadrotor vehicle has encountered a fault during a flight accident, and as a result, one of the rotors does not operate vertically.
Hashem Aghakhani +3 more
doaj +1 more source
A Luenberger-Like Observer for Multistable Kapitaniak Chaotic System
Complexity, 2020 The objective of this paper is to estimate the unmeasurable variables of a multistable chaotic system using a Luenberger-like observer. First, the observability of the chaotic system is analyzed.
J. Humberto Pérez-Cruz +9 more
doaj +1 more source
Phénomène d’Eaux Vertes à Picochlorum en lagune de Thau pendant les années 2018 et 2019. Observations environnementales [PDF]
, 2021 Après avoir été eutrophisée jusque dans les années 2000, la lagune de Thau est depuis sur une trajectoire de restauration écologique selon le processus d’oligotrophisation. Cependant, l’année 2018 est apparue comme une année de bascule dans son fonctionnement écologique par son contexte hydroclimatique perturbé avec l’apparition d’un phénomène inédit d’
Lagarde, Franck +11 more
openaire +1 more source
Fault Diagnosis and Fault-Tolerant Control Scheme for Quadcopter UAVs with a Total Loss of Actuator
Energies, 2019 Fault-tolerant control has drawn attention in recent years owning to its reliability and safe flight during missions. In this article, an active fault-tolerant control method is proposed to control a quadcopter in the presence of actuator faults and ...
Ngoc Phi Nguyen, Sung Kyung Hong
doaj +1 more source
Feedback Linearization Controller With Thau Observer
Journal of Automation, Mobile Robotics and Intelligent SystemsIn this research presents a new control method for a twin rotor MIMO system, which models the behavior of a helicopter. The control strategy combines feedback linearization with a non-linear observer named Thau Observer and takes full advantage of the system's state information. The proposed method is tested in both simulated and real-world experiments,
Abderrahmane Kacimi +1 more
openaire +1 more source
Observations sur la biologie de l'algue japonaise Undaria pinnatifida (harvey) suringar introduite accidentellement dans l'étang de Thau [PDF]
, 1981 En février 1971, un ostréiculteur apportait pour détermination au Centre de l'Institut Scientifique et Technique des Pêches Maritimes a Sète une algue de grande taille qu'il observait pour la première fois dans l'étang de Thau. Il s'agissait de l'espéce Undaria pinnatifida, originellement endémique des côtes japonaises, introduite accidentellement en ...
Perez, René +2 more
openaire