Experimental sensorless control for electropneumatic system based on high gain observer and adaptive sliding mode control

Ayadi, Assil; Hajji, Sofien; Smaoui, Mohamed; Châari, Abdelkader; Farza, M.

doi:10.1007/s00170-017-0885-x

Cited by 8 publications

(4 citation statements)

References 18 publications

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“…Since only x 1 (force) is available, a HO with easy implementation and calibration is designed to estimate the unmeasured states. The observer is given by the following equation [36]- [39]:…”

Section: Controller Design a High-gain Observer Designmentioning

confidence: 99%

High-Gain Observer-Based Sliding Mode Force Control for the Single-Rod Electrohydraulic Servo Actuator

Liu

2019

IEEE Access

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A high-gain observer based sliding mode force control system for the single-rod servo actuator is presented in this paper. In order to track the desired force, full states for feedback are needed. Since only the output force is measured, a high-gain observer with easy implementation and calibration is designed for the estimation of the unavailable states. Then the sliding mode controller is proposed and a continuously varying function instead of the traditional sign function is used to constitute the switching term of the control input which takes the distance of the system states from the sliding surface into account. So the chattering phenomena are eliminated. The stability of the closed-loop force control system is analyzed by the singular perturbation method and simulations show the effectiveness of the proposed force control method for the single-rod electrohydraulic servo actuator. INDEX TERMS High-gain observer, sliding mode control, chattering-free, servo actuator, force control.

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Section: Controller Design a High-gain Observer Designmentioning

confidence: 99%

High-Gain Observer-Based Sliding Mode Force Control for the Single-Rod Electrohydraulic Servo Actuator

Liu

2019

IEEE Access

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“…Electro-pneumatic systems have many advantages such as low weight and size; these systems are robust, economical with easy installation and maintenance [1][2][3][4], they are now used in several industrial sectors such as transporting system, buildings, machine tools, assembly, pharmaceutical and chemical system. Contrariwise, the design of control laws for such systems is not easy due to its difficult modeling such as presence of parametric uncertainty.…”

Section: Introductionmentioning

confidence: 99%

“…The sliding mode control displays its usefulness due to its robustness and the guaranteed convergence. However, its weakness is the well-known "chattering" phenomenon [2,5], produced by the discontinuous input. Backstepping is one of these advanced control techniques that has attracted researcher in recent years.…”

Section: Introductionmentioning

confidence: 99%

An Artificial Bee Optimization Based on Command Filtered CDM-Backstepping for Electro-Pneumatic System

Haouari

Gouri

Bali

et al. 2019

Period. Polytech. Elec. Eng. Comp. Sci.

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The proposed manuscript presents a coefficient diagram method (CDM) controller for an electro-pneumatic system. In order to tune the controller parameters, an artificial bee colony (ABC) optimization method is applied. According to the simulation results, the optimized parameters can provide better dynamic and steady state performances and higher robustness to the control algorithm, than the conventional tuned parameters.

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“…In [9], [10], and [11], fuzzy and adaptive PIDs were used to compensate for the disturbance but limited improvements were obtained for the EHA control. In addition, robust control have been used, especially the sliding mode control (SMC), which is a wellknown robust control algorithm that can be used in both linear and nonlinear systems [12][13][14][15][16][17][18][19][20][21][22]. A discrete-time sliding mode control was conducted by Yang [14] because of the high efficiency in compensating for the uncertainties in the EHA through an appropriate approach.…”

mentioning

confidence: 99%

Experimental Investigation of an Electro-Hydrostatic Actuator Based on the Novel Active Compensation Method

Wang

et al. 2020

IEEE Access

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For electro-hydrostatic actuators (EHAs), how to estimate and compensate for the combined effects of the severe nonlinearity caused by inner leakage and friction, the parametric uncertainties of the hydraulic components due to the environment and the external disturbance remain the primary issues. In this paper, a novel four-loop cascade control based on the active disturbance compensation method was proposed to address the abovementioned problem. First, by dividing the model of an EHA, two low-order estimators were obtained rather than a high-order estimator, which are easier to be implemented. Further, pressure information of two chambers of the EHA was applied in the proposed controller to compensate for the mismatching disturbances directly. Finally, the experimental results proved that the proposed method improved the robustness and static state error by approximately 35% and 33%, respectively. INDEX TERMS EHA, servo control, ADCM, modeling, low velocity I.INTRODUCTION

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Experimental sensorless control for electropneumatic system based on high gain observer and adaptive sliding mode control

Cited by 8 publications

References 18 publications

High-Gain Observer-Based Sliding Mode Force Control for the Single-Rod Electrohydraulic Servo Actuator

High-Gain Observer-Based Sliding Mode Force Control for the Single-Rod Electrohydraulic Servo Actuator

An Artificial Bee Optimization Based on Command Filtered CDM-Backstepping for Electro-Pneumatic System

Experimental Investigation of an Electro-Hydrostatic Actuator Based on the Novel Active Compensation Method

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