Results 21 to 30 of about 832,201 (307)

Controllability Analysis and Degraded Control for a Class of Hexacopters Subject to Rotor Failures [PDF]

open access: yes, 2014
This paper considers the controllability analysis and fault tolerant control problem for a class of hexacopters. It is shown that the considered hexacopter is uncontrollable when one rotor fails, even though the hexacopter is over-actuated and its ...
Cai, Kai-Yuan, Du, Guang-Xun, Quan, Quan
core   +1 more source

Control Approach to Fault Disambiguation

open access: yesAnnual Conference of the PHM Society, 2022
To ensure resilience, systems must be endowed with capabilities for rapid detection, response, and recovery to disruptiveevents. In this paper we focus on faults as disruptive events and use a diagnosis engine for their detection and isolation. In particular we use model-based diagnosis, where the diagnosis engine is provided with a model of the system,
Matei, Ion   +3 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

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

Fault diagnosis and fault‐tolerant control in aerospace systems [PDF]

open access: yesInternational Journal of Robust and Nonlinear Control, 2019
Modern technological and safety‐critical systems rely on sophisticated control solutions to meet increased performance demands in faulty conditions and in terms of reliability and safety requirements. A conventional feedback control design for a complex system may give unsatisfactory performance or even instability, in the event of malfunctions in ...
C. Edwards, S. Simani
openaire   +2 more sources

Estimation of inertia demand in power systems considering wind power virtual inertia

open access: yesInternational Journal of Electrical Power & Energy Systems
The high proportion of renewable energy integrated into the grid through numerous power electronic devices has reduced the overall system inertia level and operational stability and caused poor disturbance resistance.
Hongchun SHU   +5 more
doaj   +1 more source

Fault-Tolerant Control of Linear Quantum Stochastic Systems

open access: yes, 2017
In quantum engineering, faults may occur in a quantum control system, which will cause the quantum control system unstable or deteriorate other relevant performance of the system.
Dong, Daoyi, Wang, Shi
core   +1 more source

Quantitative evaluation of Pandora Temporal Fault Trees via Petri Nets [PDF]

open access: yes, 2015
© 2015, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved. Using classical combinatorial fault trees, analysts are able to assess the effects of combinations of failures on system behaviour but are unable ...
Kabir, Sohag   +2 more
core   +1 more source

Adaptability analysis of distance protection in flexible low frequency ac outgoing transmission line of wind power system

open access: yesResults in Engineering
The extension of offshore wind power to medium and far seas has promoted the development of flexible low-frequency AC transmission (FLFAC) technology. However, the fault responses of the power electronic interface-type power sources (wind turbines and ...
Yue Dai   +3 more
doaj   +1 more source

Constrained Active Fault Tolerant Control Based on Active Fault Diagnosis and Interpolation Optimization

open access: yesEntropy, 2021
A new active fault tolerant control scheme based on active fault diagnosis is proposed to address the component/actuator faults for systems with state and input constraints.
Kezhen Han   +3 more
doaj   +1 more source

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