Robust Control Optimization Based on Actuator Fault and Sensor Fault Compensation for Mini Motion Package Electro-Hydraulic Actuator

In recent years, electro-hydraulic systems have been widely used in many industries and have attracted research attention because of their outstanding characteristics such as power, accuracy, efficiency, and ease of maintenance. However, such systems face serious problems caused simultaneously by di...

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Autores principales:	Tan Van Nguyen, Huy Q. Tran, Khoa Dang Nguyen
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	fault compensation fault estimation fault tolerant control sliding mode observer unknown input observer Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/02cd86183cb84a71ae5ae93b2a6e5ac5
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spelling	oai:doaj.org-article:02cd86183cb84a71ae5ae93b2a6e5ac52021-11-25T17:24:32ZRobust Control Optimization Based on Actuator Fault and Sensor Fault Compensation for Mini Motion Package Electro-Hydraulic Actuator10.3390/electronics102227742079-9292https://doaj.org/article/02cd86183cb84a71ae5ae93b2a6e5ac52021-11-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/22/2774https://doaj.org/toc/2079-9292In recent years, electro-hydraulic systems have been widely used in many industries and have attracted research attention because of their outstanding characteristics such as power, accuracy, efficiency, and ease of maintenance. However, such systems face serious problems caused simultaneously by disturbances, internal leakage fault, sensor fault, and dynamic uncertain equation components, which make the system unstable and unsafe. Therefore, in this paper, we focus on the estimation of system fault and uncertainties with the aid of advanced fault compensation techniques. First, we design a sliding mode observer using the Lyapunov algorithm to estimate actuator faults that produce not only internal leakage fault but also disturbances or unknown input uncertainties. These faults occur under the effect of payload variations and unknown friction nonlinearities. Second, Lyapunov analysis-based unknown input observer model is designed to estimate sensor faults arising from sensor noises and faults. Third, to minimize the estimated faults, a combination of actuator and sensor compensation fault is proposed, in which the compensation process is performed due to the difference between the output signal and its estimation. Finally, the numerical simulations are performed to demonstrate the effectiveness of the proposed method obtained under various faulty scenarios. The simulation results show that the efficiency of the proposed solution is better than the traditional PID controller and the sensor fault compensation method, despite the influence of noises.Tan Van NguyenHuy Q. TranKhoa Dang NguyenMDPI AGarticlefault compensationfault estimationfault tolerant controlsliding mode observerunknown input observerElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2774, p 2774 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	fault compensation fault estimation fault tolerant control sliding mode observer unknown input observer Electronics TK7800-8360
spellingShingle	fault compensation fault estimation fault tolerant control sliding mode observer unknown input observer Electronics TK7800-8360 Tan Van Nguyen Huy Q. Tran Khoa Dang Nguyen Robust Control Optimization Based on Actuator Fault and Sensor Fault Compensation for Mini Motion Package Electro-Hydraulic Actuator
description	In recent years, electro-hydraulic systems have been widely used in many industries and have attracted research attention because of their outstanding characteristics such as power, accuracy, efficiency, and ease of maintenance. However, such systems face serious problems caused simultaneously by disturbances, internal leakage fault, sensor fault, and dynamic uncertain equation components, which make the system unstable and unsafe. Therefore, in this paper, we focus on the estimation of system fault and uncertainties with the aid of advanced fault compensation techniques. First, we design a sliding mode observer using the Lyapunov algorithm to estimate actuator faults that produce not only internal leakage fault but also disturbances or unknown input uncertainties. These faults occur under the effect of payload variations and unknown friction nonlinearities. Second, Lyapunov analysis-based unknown input observer model is designed to estimate sensor faults arising from sensor noises and faults. Third, to minimize the estimated faults, a combination of actuator and sensor compensation fault is proposed, in which the compensation process is performed due to the difference between the output signal and its estimation. Finally, the numerical simulations are performed to demonstrate the effectiveness of the proposed method obtained under various faulty scenarios. The simulation results show that the efficiency of the proposed solution is better than the traditional PID controller and the sensor fault compensation method, despite the influence of noises.
format	article
author	Tan Van Nguyen Huy Q. Tran Khoa Dang Nguyen
author_facet	Tan Van Nguyen Huy Q. Tran Khoa Dang Nguyen
author_sort	Tan Van Nguyen
title	Robust Control Optimization Based on Actuator Fault and Sensor Fault Compensation for Mini Motion Package Electro-Hydraulic Actuator
title_short	Robust Control Optimization Based on Actuator Fault and Sensor Fault Compensation for Mini Motion Package Electro-Hydraulic Actuator
title_full	Robust Control Optimization Based on Actuator Fault and Sensor Fault Compensation for Mini Motion Package Electro-Hydraulic Actuator
title_fullStr	Robust Control Optimization Based on Actuator Fault and Sensor Fault Compensation for Mini Motion Package Electro-Hydraulic Actuator
title_full_unstemmed	Robust Control Optimization Based on Actuator Fault and Sensor Fault Compensation for Mini Motion Package Electro-Hydraulic Actuator
title_sort	robust control optimization based on actuator fault and sensor fault compensation for mini motion package electro-hydraulic actuator
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/02cd86183cb84a71ae5ae93b2a6e5ac5
work_keys_str_mv	AT tanvannguyen robustcontroloptimizationbasedonactuatorfaultandsensorfaultcompensationforminimotionpackageelectrohydraulicactuator AT huyqtran robustcontroloptimizationbasedonactuatorfaultandsensorfaultcompensationforminimotionpackageelectrohydraulicactuator AT khoadangnguyen robustcontroloptimizationbasedonactuatorfaultandsensorfaultcompensationforminimotionpackageelectrohydraulicactuator
_version_	1718412387959177216

Robust Control Optimization Based on Actuator Fault and Sensor Fault Compensation for Mini Motion Package Electro-Hydraulic Actuator

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