Actuator Fault Diagnosis Of Nonlinear Systems Based On Unknown Input Root-Mean-Square Cubature Kalman Filter

Qian, Huaming; Yan, Shuya; Ding, Peng; Chu, Shuai

doi:10.1109/med54222.2022.9837264

2022 30th Mediterranean Conference on Control and Automation (MED) 2022

DOI: 10.1109/med54222.2022.9837264

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Actuator Fault Diagnosis Of Nonlinear Systems Based On Unknown Input Root-Mean-Square Cubature Kalman Filter

Huaming Qian

Shuya Yan

Peng Ding

et al.

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2024

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Fault Tolerant Control in Underwater Vehicles

Liu,

Filaretov,

Zuev

et al. 2024

JMSE

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The article discusses the problem of adaptive system synthesis to provide the detection, estimation, and elimination of the negative consequences of faults in the thrusters of underwater robots and deviations of their parameters. For this purpose, an approach consisting of three stages is proposed. At the first stage, based on a bank of diagnostic observers, deviations of the thruster parameters from their nominal values or the occurrence of errors in the readings of its sensors are detected. At the second stage, the magnitudes of the detected deviations and errors are estimated using sliding mode observers. To estimate not only single but also multiple faults, the additional sliding mode observers are used. At the third stage, a control signal is generated to retain the basic dynamic properties of the thruster based on the estimated magnitudes of deviations and errors. Thus, the main contribution of this paper is designing the systems compensating for the consequences of faults occurring in the thrusters of the UR and errors in the readings of the angular velocity sensors. This avoids reducing the accuracy of movement along specified trajectories, as well as preventing accidents that could lead to the loss of the vehicle. The operability and efficiency of the proposed systems were tested using computer simulations and experimental studies on an electro-mechanical stand.

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Fault Tolerant Control in Underwater Vehicles

Liu,

Filaretov,

Zuev

et al. 2024

JMSE

View full text Add to dashboard Cite

show abstract

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Actuator Fault Diagnosis Of Nonlinear Systems Based On Unknown Input Root-Mean-Square Cubature Kalman Filter

Cited by 1 publication

References 0 publications

Fault Tolerant Control in Underwater Vehicles

Fault Tolerant Control in Underwater Vehicles

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