Observer-based Fault-Tolerant Control of an Electro-Hydraulic Actuator with mismatched disturbance
Abstract
This article develops a novel fault-tolerant controller for an electro-hydraulic actuation system in the presence of mismatched disturbance and sensor malfunction. In detail, on the basic of the linear matrix inequality (LMI) approach, a nonlinear unknown input observer (NUIO) is designed to simultaneously estimate the sensor fault and output of position that is not impacted by the external disturbance. Next, a fault detection module is constructed to detect sensor fault and feedback the estimated position to the controller when the fault occurs. For the purpose of approximating and reducing the influence of the mismatched disturbance, a radial basis function neural network (RBFNN) is deployed. The combination of NUIO, RBFNN in a dynamic surface control (DSC) approach is introduced to not only achieve precision tracking control but also guarantee a stable system in the event of sensor fault. Furthermore, the Lyapunov function method is utilized to analyze the stability of the resulting closed-loop system. Finally, simulation results and comparison studies are presented to verify the effectiveness and feasibility of the theoretical claims.
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In [21, 24, 25], authors are only interested to position sensor fault identification for EHSS.
“In [21, 24, 25], authors are only interested to position sensor fault identification for EHSS.”
From Fault-tolerant control for an electro-hydraulic servo system with sensor fault compensation and disturbance rejection (2023) · cites this paper as [21]
Cites
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A Robust Observer-Based Sensor Fault-Tolerant Control for PMSM in Electric Vehicles
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RISE-Based Adaptive Control of Hydraulic Systems With Asymptotic Tracking
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Model-Based Fault Detection and Isolation Scheme for a Rudder Servo System
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Phan, V. D., Vo, C. P., Dao, H. V., & Ahn, K. K. (2021) · IEEE Access · doi:10.1109/access.2021.3059947 · Cited by 58 · see citing works
Self-citationPhan, V. D., Vo, C. P., Dao, H. V., & Ahn, K. K. (2021) · IEEE Access · doi:10.1109/access.2021.3101038 · Cited by 44 · see citing works
Self-citationModeling and fault tolerant control of an electro-hydraulic actuator
Nahian, S. A., Truong, D. Q., Chowdhury, P., Das, D., & Ahn, K. K. (2016) · International Journal of Precision Engineering and Manufacturing · doi:10.1007/s12541-016-0153-2 · Cited by 38 · see citing works
Self-citationNahian, S. A., Dinh, T. Q., Dao, H. V., & Ahn, K. K. (2020) · IEEE/ASME Transactions on Mechatronics · doi:10.1109/tmech.2020.3013609 · Cited by 29 · see citing works
Self-citationRobust Fault Diagnosis Observer Design for Uncertain Switched Systems
Du, D., Yang, Y., Zhao, H., et al. (2020) · International Journal of Control Automation and Systems · doi:10.1007/s12555-019-0870-2 · Cited by 25 · see citing works
Improved LMI Conditions for Unknown Input Observer Design of Discrete-time LPV Systems
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Phan, V. D., & Ahn, K. K. (2023) · Nonlinear Dynamics · doi:10.1007/s11071-023-08364-3 · Cited by 58 · see citing works
“(i) Compared with only position sensor fault analyzed in [21, 24, 25].”
BackgroundMethodSelf-citationOptimized-Based Fault-Tolerant Control of an Electro-Hydraulic System with Disturbance Rejection
Phan, V. D., & Ahn, K. K. (2022) · Applied Sciences · doi:10.3390/app12189197 · Cited by 17 · see citing works
Self-citation
- Authors
- Phan, V. D., & Ahn, K. K.
- Affiliations
- University of Ulsan (KR)
- Venue
- 2021 24th International Conference on Mechatronics Technology (ICMT)
- Publisher
- IEEE
- Published
- 2021-12-18
- Pages
- 1-6
- OpenAlex
- W4210571361
- Cited by
- 2
- References
- 13
- Citations by year
- 2023: 1 · 2022: 1
- FWCI
- 1.39
- Type
- conference paper
- Language
- en
- Open access
- closed
- Licence
- Locations
- International Conference on Mechatronics Technology (ICMT) (publishedVersion)
- Funders
- National Research Foundation of Korea (NRF)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Hydraulic and Pneumatic Systems
- Physical Sciences › Engineering › Control and Systems Engineering › Adaptive Control of Nonlinear Systems
- Physical Sciences › Engineering › Control and Systems Engineering › Fault Detection and Control Systems
- Keywords
- fault-tolerant control, electro-hydraulic actuator, mismatched disturbances, sensor fault estimation, unknown input observer, radial basis function neural network, dynamic surface control, fault detection, position tracking control, Lyapunov stability
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