Results 41 to 50 of about 36,478 (304)

Actuator Weak Fault Diagnosis in Autonomous Underwater Vehicle Based on Tri-Stable Stochastic Resonance

open access: yesApplied Sciences, 2020
The autonomous underwater vehicle (AUV) is mainly used in the development and exploration of the ocean. As an important module of the AUV, the actuator plays an important role in the normal execution of the AUV.
Yang Jiang   +6 more
doaj   +1 more source

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

Observer Design for Actuator Failure of a Quadrotor

open access: yesIEEE Access, 2020
This article addresses the problem of fault estimation for a quadrotor unmanned aircraft vehicle (UAV). A robust H∞ observer is proposed to achieve fault and state estimation of a quadrotor UAV with actuator fault in the presence of external ...
Xiao-Lu Ren
doaj   +1 more source

Diagnosis and fault tolerant control against actuator fault

open access: yesMeasurement + Control, 2023
Over the past few decades, there have been increasing research activities in fault diagnosis (FD) and fault-tolerant control (FTC) for switched hybrid systems. This paper addresses the problem of active-fault tolerant control (AFTC) for switched hybrid systems subject to actuator faults to enhance system security and keep system stability. The proposed
Yahia Salwa   +2 more
openaire   +1 more source

Adaptive fault estimation (FE) and fault-toletant control (FTC) for the molten steel level in a strip casting process

open access: yesMetalurgija, 2023
In this paper, the problem of adaptive fault estimation and fault-tolerant control is studied for molten steel level for twin roll strip casting systems with the inclined angle and actuator fault.
X. L. Zhang, Y. J. Zhang, L. B. Wu
doaj  

Fault Tolerant Control of DFIG-Based Wind Energy Conversion System Using Augmented Observer

open access: yesEnergies, 2019
An augmented sliding mode observer is proposed to solve the actuator fault of an uncertain wind energy conversion system (WECS), which can estimate the system state and reconstruct the actuator faults.
Xu Wang, Yanxia Shen
doaj   +1 more source

A Hybrid Fault-Tolerant Control for Nonlinear Active Suspension Systems Subjected to Actuator Faults and Road Disturbances

open access: yesComplexity, 2020
This paper proposes a hybrid fault-tolerant control strategy for nonlinear active suspension subjected to actuator faults and road disturbances. First, an augmented closed-loop system model is established for the nonlinear active suspension system with ...
Hui Pang, Xue Liu, Yuting Shang, Rui Yao
doaj   +1 more source

An application of adaptive fault-tolerant control to nano-spacecraft [PDF]

open access: yes, 2014
Since nano-spacecraft are small, low cost and do not undergo the same rigor of testing as conventional spacecraft, they have a greater risk of failure.
Biggs, James, Cui, Naigang, Han, Yu
core  

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Model-based fault detection and isolation for wind turbine [PDF]

open access: yes, 2012
In this paper, a quantitative model based method is proposed for early fault detection and diagnosis of wind turbines. The method is based on designing an observer using a model of the system. The observer innovation signal is monitored to detect faults.
Hwas, Abdulhamed Moh Suliman   +1 more
core   +1 more source

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