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An unknown input observer-EFIR combined estimator for electro-hydraulic actuator in sensor fault tolerant control application
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Nahian, Syed Abu, Quang Truong, Dinh, Hoang Vu, Dao and Kyoung Kwan, Ahn (2020) An unknown input observer-EFIR combined estimator for electro-hydraulic actuator in sensor fault tolerant control application. IEEE/ASME Transactions on Mechatronics, 25 (5). pp. 2208-2219. doi:10.1109/TMECH.2020.3013609 ISSN 1083-4435.
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WRAP-unknown-input-observer-EFIR-combined-estimator-electro-hydraulic-actuator-sensor-fault-tolerant-control-application-Nahian-2020.pdf - Accepted Version - Requires a PDF viewer. Download (6Mb) | Preview |
Official URL: https://doi.org/10.1109/TMECH.2020.3013609
Abstract
This paper presents a novel unknown input observer (UIO) integrated extended finite impulse response (EFIR) estimator (UIOEFIR) and its application for an effective sensor fault tolerant control of an electro-hydraulic-actuator (EHA). The proposed estimator exploits the UIO structure in the EFIR filter. Thus, it requires only a small number of historical data (N) whilst ensuring threefold: i) Sensor fault and system-state estimation accuracy under time-correlated noise ii) The number of estimator-design-parameters is significantly minimized. iii) Robust residual generation. A Lyapunov-stability-based theory is carried out to study its convergence condition. Next, an EHAbased test rig has been setup and sensor FTC is performed by carrying this estimator as a part of fault diagnosis algorithm to evaluate its performance by both simulation and realtime experiments. Results highlight that under optimal setting (N = Nopt), the estimator performance is near-accurate to the very-well-developed Extended Kalman Filter-based unknown input observer in an undisturbed condition but significantly outperformed while dealing with time-correlated noise under the same control environment. The estimator also shows its robustness under below-optimal setting (downgrading Nopt by 50%.) while performing in real-time sensor fault-tolerant control.
| Item Type: | Journal Article | |||||||||
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TC Hydraulic engineering. Ocean engineering T Technology > TJ Mechanical engineering and machinery T Technology > TL Motor vehicles. Aeronautics. Astronautics |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | |||||||||
| Library of Congress Subject Headings (LCSH): | Fault tolerance (Engineering) , Actuators , Hydraulic machinery | |||||||||
| Journal or Publication Title: | IEEE/ASME Transactions on Mechatronics | |||||||||
| Publisher: | Institute of Electrical and Electronics Engineers | |||||||||
| ISSN: | 1083-4435 | |||||||||
| Official Date: | October 2020 | |||||||||
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| Volume: | 25 | |||||||||
| Number: | 5 | |||||||||
| Page Range: | pp. 2208-2219 | |||||||||
| DOI: | 10.1109/TMECH.2020.3013609 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Reuse Statement (publisher, data, author rights): | © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | |||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||
| Date of first compliant deposit: | 30 July 2020 | |||||||||
| Date of first compliant Open Access: | 3 August 2020 | |||||||||
| RIOXX Funder/Project Grant: |
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