Fault-Tolerant Control of a Nonlinear System Actuator Fault Based on Sliding Mode Control

He, Jing; Lin, Mingxing; Mao, Songan; Zhang, Changfan; Chu, Houguang

doi:10.1155/2017/8595960

Cited by 11 publications

(15 citation statements)

References 18 publications

(22 reference statements)

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“…To address this issue, the fault-tolerant control (FTC) technique for EHAs was introduced. This technique handles the impacts of actuator faults (AFs) and sensor faults (SFs) [12][13][14][15][16][17][18], and sensor fault-tolerant control (SFTC) techniques are also used to solve the problems of SFs [19,20]. With the rapid development of mechatronics technology, increasingly intelligent and complex systems using the FTC technique have been applied to both industries and human life.…”

Section: Introductionmentioning

confidence: 99%

“…The FDI and the reconfigurable controller need to be robust against uncertainties and disturbances as in [21,22]. By using FTC techniques, the system still works as normal instead of stopping under the impacts of AFs and SFs [12][13][14][15][16][17][18]. Thus, the FTC plays a key role to improve the performance of systems prone to faults or failures.…”

Section: Introductionmentioning

confidence: 99%

“…The two main tasks of this technology are to determine the estimated fault and to perform fault compensation. To obtain the estimated fault, some advanced observer methods are proposed, such as the sliding mode observer [15,24], the augmented observer [12,[16][17][18][25][26][27][28], and sensor fault reconstruction [29,30]. In particular, a UIO of the system variable reconstruction has the benefits of not only estimating the state vector, but also the fault estimation, as shown in [18,29,30].…”

Section: Introductionmentioning

confidence: 99%

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Sensor Fault-Tolerant Control Design for Mini Motion Package Electro-Hydraulic Actuator

Nguyen

2019

Processes

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With the rapid development of computer science and information and communication technology (ICT), increasingly intelligent, and complex systems have been applied to industries as well as human life. Fault-tolerant control (FTC) has, therefore, become one of the most important topics attracting attention from both engineers and researchers to maintain system performances when faults occur. The ultimate goal of this study was to develop a sensor fault-tolerant control (SFTC) to enhance the robust position tracking control of a class of electro-hydraulic actuators called mini motion packages (MMPs), which are widely used for applications requiring large force-displacement ratios. First, a mathematical model of the MMP system is presented, which is then applied in the position control process of the MMP system. Here, a well-known proportional, integrated and derivative (PID) control algorithm is employed to ensure the positional response to the reference position. Second, an unknown input observer (UIO) is designed to estimate the state vector and sensor faults using a linear matrix inequality (LMI) optimization algorithm. Then an SFTC is used to deal with sensor faults of the MMP system. The SFTC is formed of the fault detection and the fault compensation with the goal of determining the location, time of occurrence, and magnitude of the faults in the fault signal compensation process. Finally, numerical simulations were run to demonstrate the superior performance of the proposed approach compared to traditional tracking control.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sensor Fault-Tolerant Control Design for Mini Motion Package Electro-Hydraulic Actuator

Nguyen

2019

Processes

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“…This method performs smoothly at cancelling the effects of sensor and actuator faults, as well as disturbances, so that the system can work well even while faults are occurring (e.g., see [8][9][10][11][12][13][14][15]17]). Its application has been developed by several researchers, with various fault estimators, such as those using the UIO scheme [8,9,[18][19][20][21], singular value decomposition (SVD) [10,11,22], sliding mode observer [23][24][25], and a fuzzy state-space observer [26]. A variety of UIO schemes can be used to estimate faults, and these can consist of AFs [27], SFs [18,[28][29][30], or both AFs and SFs [9,[19][20][21][22]31,32].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Sensor Fault-Tolerant Control for an Electro-Hydraulic Actuator Based on a Robust Nonlinear Observer

Nguyen¹,

2019

Energies

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Electro-hydraulic actuators (EHAs) have been widely used in modern industries. However, sensor faults and actuator faults in EHA systems can arise due to aging during operation, making the system unstable and unsafe. To solve these issues, fault-tolerant control (FTC) techniques for EHA systems have been studied intensively. In this paper, an FTC is proposed and developed for the mini motion package (MMP) EHA system. First, a mathematical model of the MMP system is formulated and improved to provide position tracking control using a well-known proportional-integral-derivative (PID) controller. Second, an unknown input observer (UIO) reconstruction is performed to estimate the states, disturbances, and sensor faults so that an asymptotically stable control error can be obtained by a linear matrix inequality (LMI) optimization algorithm through Lyapunov’s stability condition. Third, the FTC designed for the nonlinear discrete-time system is formed from fault compensation based on a residual logic signal to implement the fault compensation process and ensure stability and tracking performance with respect to minimizing impacts of disturbances and sensor faults. Here, residual is defined by the difference between state response and state estimation. Finally, numerical simulations and experiments of the MMP system are presented to illustrate the efficiency of the proposed FTC technique.

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“…Actuator faults estimation is proven without considering sensor faults [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Sliding Mode Observers Based-Simultaneous Actuator and Sensor Faults Estimation for Linear Parameter Varying Systems

Brahim

Dhahri

Hmida

et al. 2017

Mathematical Problems in Engineering

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This paper proposes a scheme to estimate actuator and sensor faults simultaneously for a class of linear parameter varying system expressed in polytopic structure where its parameters evolve in the hypercube domain. Transformed coordinate system design is adopted to decouple faults in actuators and sensors during the course of the system's operation coincidentally, and then two polytopic subsystems are constructed. The first subsystem includes the effect of actuator faults but is free from sensor faults and the second one is affected only by sensor faults. The main contribution is to conceive two polytopic sliding mode observers in order to estimate the system states and actuator and sensor faults at the same time. Meanwhile, in linear matrix inequality optimization formalism, sufficient conditions are derived with ∞ performances to guarantee the stability of estimation error and to minimize the effect of disturbances. Therefore, all parameters of observers can be designed by solving these conditions. Finally, simulation results are given to illustrate the effectiveness of the proposed simultaneous actuator and sensor faults estimation.

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Fault-Tolerant Control of a Nonlinear System Actuator Fault Based on Sliding Mode Control

Cited by 11 publications

References 18 publications

Sensor Fault-Tolerant Control Design for Mini Motion Package Electro-Hydraulic Actuator

Sensor Fault-Tolerant Control Design for Mini Motion Package Electro-Hydraulic Actuator

Experimental Study of Sensor Fault-Tolerant Control for an Electro-Hydraulic Actuator Based on a Robust Nonlinear Observer

Sliding Mode Observers Based-Simultaneous Actuator and Sensor Faults Estimation for Linear Parameter Varying Systems

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