Results 11 to 20 of about 22,661 (357)

An adaptive sliding mode fault‐tolerant control of a quadrotor unmanned aerial vehicle with actuator faults and model uncertainties

open access: yesInternational Journal of Robust and Nonlinear Control, 2023
An adaptive sliding mode fault‐tolerant control strategy is proposed for a quadrotor unmanned aerial vehicle in this article to accommodate actuator faults and model uncertainties. First, a new reaching law is proposed, with which a sliding mode control (
Ban Wang   +4 more
semanticscholar   +1 more source

Fault Tolerance for Active Surface System with Actuator Faults [PDF]

open access: yesAdvances in Astronomy, 2021
The QiTai Radio Telescope (QTT) will be equipped with the active surface adjustment system (ASAS) to correct the main reflector deformation caused by environmental loading. In order to guarantee the stability and performance of the active surface system under fault conditions, it is necessary to adopt the fault-tolerant method when actuator faults have
Danqing Zhang   +4 more
openaire   +2 more sources

Fault estimation and fault-tolerant control for discrete-time dynamic systems [PDF]

open access: yes, 2015
In this paper, a novel discrete-time estimator is proposed, which is employed for simultaneous estimation of system states, and actuator/sensor faults in a discrete-time dynamic system.
Gao, Zhiwei
core   +1 more source

Observer-Based Robust Fault Predictive Control for Wind Turbine Time-Delay Systems with Sensor and Actuator Faults

open access: yesEnergies, 2023
This paper presents a novel observer-based robust fault predictive control (OBRFPC) approach for a wind turbine time-delay system subject to constraints, actuator/sensor faults, and external disturbances.
Sofiane Bououden   +7 more
doaj   +1 more source

CONTROLLERS FOR FAULT TOLERANT ACTUATORS

open access: yesAviation, 2007
The Fly‐by‐Wire technology enables flexible shaping of both effective dynamics and handling qualities of aircraft. This solution extends aircraft possibilities and supports the pilot by use of high‐level control laws. Application of FBW for aircraft would make flying both safer, and more popular. On the other hand the FBW system must be highly reliable.
Dołega, Bogusław, Rzucidło, Paweł
openaire   +4 more sources

Effects of actuator faults on large-scale wind turbine dynamics with an industry-standard controller [PDF]

open access: yesE3S Web of Conferences
The pitch actuator is a critical component of large-scale wind turbines with a high failure rate. Actuator faults significantly impact the dynamics of wind turbines, leading to increased loads on the turbine structure and reduced power output, thereby ...
Do Manh-Hung, Nguyen Duc-Duong
doaj   +1 more source

Comments on actuator fault accommodation [PDF]

open access: yesIFAC Proceedings Volumes, 2009
The present work concerns the problem of progressive accommodation to actuator failure. An optimal nonlinear controller synthesis approach is formulated on the basis of the closed loop stability objective. The authors show the interest of the proposed method even for a local analysis when a linear approximation is used.
Raharijaona, Thibaut   +3 more
openaire   +2 more sources

Adaptive Minimum-Entropy Hybrid Compensation for Compound Faults of Non-Gaussian Stochastic Systems

open access: yesIEEE Access, 2019
This study investigated minimum-entropy hybrid fault-tolerant control (FTC) theory for non-Gaussian stochastic systems with compound faults. After fuzzy linearization for the singular systems, the output probability density function (PDF) is generated by
Kaiyu Hu   +3 more
doaj   +1 more source

Active fault tolerant control for nonlinear systems with simultaneous actuator and sensor faults [PDF]

open access: yes, 2013
The goal of this paper is to describe a novel fault tolerant tracking control (FTTC) strategy based on robust fault estimation and compensation of simultaneous actuator and sensor faults. Within the framework of fault tolerant control (FTC) the challenge
Patton, Ron J., Sami, Montadher
core   +1 more source

Adaptive fault tolerant control against actuator faults

open access: yesInternational Journal of Adaptive Control and Signal Processing, 2016
SummaryThis paper investigates the problem of adaptive fault tolerant control for a class of dynamic systems with unknown un‐modeled actuator faults. The fault model is assumed to be an unknown nonlinear function of control input, not in the traditional form in which the faults can be described as gain and/or bias faults.
Shen, Q, Jiang, B, Shi, Peng
openaire   +4 more sources

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