Model-Independent Adaptive Fault-Tolerant Tracking Control for High-Speed Trains with Actuator Saturation
This paper investigates the fault-tolerant tracking control problem of high-speed trains (HSTs) subject to unknown model parameters with unavailable uncertainties, unmeasurable additional disturbance, and unpredictable actuator faults constrained by actuator saturation. An adaptive passive fault-tol...
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MDPI AG
2019-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/19/4146 |
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| author | Chuanfang Xu Xiyou Chen Lin Wang |
| author_facet | Chuanfang Xu Xiyou Chen Lin Wang |
| author_sort | Chuanfang Xu |
| collection | DOAJ |
| description | This paper investigates the fault-tolerant tracking control problem of high-speed trains (HSTs) subject to unknown model parameters with unavailable uncertainties, unmeasurable additional disturbance, and unpredictable actuator faults constrained by actuator saturation. An adaptive passive fault-tolerant tracking control strategy based on variable-gain proportion-integral-derivative (PID)-type sliding mode surface is proposed to handle the problem. Unknown model parameters, gains of the PID-type sliding mode surface, and upper bounds of the lumped system uncertainty which includes additional disturbance, modeling uncertainties, and uncertainties resulting from actuator faults, are estimated online by adaptive technology. The input saturation (actuator output saturation) constraint is handled by introducing an auxiliary signal. The proposed controller can compensate for the effects of the lumped uncertainty and the actuator faults effectively. Moreover, the controller is model-independent, which means it requires no prior knowledge of model parameters and upper bounds of the lumped uncertainty, and does not depend upon fault detection and diagnosis module. The asymptotic stability of the closed-loop train system is demonstrated by Lyapunov theory. Good fault-tolerant tracking capacity, effective anti-actuator saturation ability, and strong robustness of the proposed controller are verified via numerical simulation. |
| first_indexed | 2024-12-14T19:44:22Z |
| format | Article |
| id | doaj.art-7ab77fe57d6645b9b893c9c2f6ab557c |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-14T19:44:22Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-7ab77fe57d6645b9b893c9c2f6ab557c2022-12-21T22:49:37ZengMDPI AGApplied Sciences2076-34172019-10-01919414610.3390/app9194146app9194146Model-Independent Adaptive Fault-Tolerant Tracking Control for High-Speed Trains with Actuator SaturationChuanfang Xu0Xiyou Chen1Lin Wang2School of Electrical Engineering, Dalian University of Technology, Dalian 116024, ChinaSchool of Electrical Engineering, Dalian University of Technology, Dalian 116024, ChinaSchool of Electronics and Information Engineering, Dalian Jiaotong University, Dalian 116028, ChinaThis paper investigates the fault-tolerant tracking control problem of high-speed trains (HSTs) subject to unknown model parameters with unavailable uncertainties, unmeasurable additional disturbance, and unpredictable actuator faults constrained by actuator saturation. An adaptive passive fault-tolerant tracking control strategy based on variable-gain proportion-integral-derivative (PID)-type sliding mode surface is proposed to handle the problem. Unknown model parameters, gains of the PID-type sliding mode surface, and upper bounds of the lumped system uncertainty which includes additional disturbance, modeling uncertainties, and uncertainties resulting from actuator faults, are estimated online by adaptive technology. The input saturation (actuator output saturation) constraint is handled by introducing an auxiliary signal. The proposed controller can compensate for the effects of the lumped uncertainty and the actuator faults effectively. Moreover, the controller is model-independent, which means it requires no prior knowledge of model parameters and upper bounds of the lumped uncertainty, and does not depend upon fault detection and diagnosis module. The asymptotic stability of the closed-loop train system is demonstrated by Lyapunov theory. Good fault-tolerant tracking capacity, effective anti-actuator saturation ability, and strong robustness of the proposed controller are verified via numerical simulation.https://www.mdpi.com/2076-3417/9/19/4146fault-tolerant tracking controlmodel-independentadaptive controlsliding mode surfaceactuator saturationhigh-speed trains |
| spellingShingle | Chuanfang Xu Xiyou Chen Lin Wang Model-Independent Adaptive Fault-Tolerant Tracking Control for High-Speed Trains with Actuator Saturation Applied Sciences fault-tolerant tracking control model-independent adaptive control sliding mode surface actuator saturation high-speed trains |
| title | Model-Independent Adaptive Fault-Tolerant Tracking Control for High-Speed Trains with Actuator Saturation |
| title_full | Model-Independent Adaptive Fault-Tolerant Tracking Control for High-Speed Trains with Actuator Saturation |
| title_fullStr | Model-Independent Adaptive Fault-Tolerant Tracking Control for High-Speed Trains with Actuator Saturation |
| title_full_unstemmed | Model-Independent Adaptive Fault-Tolerant Tracking Control for High-Speed Trains with Actuator Saturation |
| title_short | Model-Independent Adaptive Fault-Tolerant Tracking Control for High-Speed Trains with Actuator Saturation |
| title_sort | model independent adaptive fault tolerant tracking control for high speed trains with actuator saturation |
| topic | fault-tolerant tracking control model-independent adaptive control sliding mode surface actuator saturation high-speed trains |
| url | https://www.mdpi.com/2076-3417/9/19/4146 |
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