Adaptive Backstepping Control of an Electrohydraulic Actuator

Ahn, Kyoung Kwan; Nam, Doan Ngoc Chi; Jin, Maolin

doi:10.1109/tmech.2013.2265312

Cited by 253 publications

(127 citation statements)

References 15 publications

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“…First of all, the hydraulic actuator is a nonlinear and uncertain system due to the asymmetry of differential cylinder and the influence of environmental temperature on the hydraulic fluid bulk modulus and the hysteresis [27]. Secondly, the hydraulic actuator system has the coupling of several energy domains (mechanical, electrical, hydrodynamic, etc.)…”

Section: Dynamic Bond Graph Model Of the Systemmentioning

confidence: 99%

Theoretical and Experimental Analysis of the Hydraulic Actuator Used in the Active Reflector System

Xiao

Liu

Wang

et al. 2018

Mathematical Problems in Engineering

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In order to improve the control quality of the active reflector system which is used in the 500 m aperture spherical radio telescope (FAST) project, a study on hydraulic actuator is proposed. The dynamic performance of hydraulic actuator is due to the interaction of several physical phenomena. Modeling of such a system needs a unified approach to represent the nonlinear behavior characteristics. Bond graph model is ideal for this task. In addition, conventional PID control strategy cannot achieve the required accuracy and precision, so we combine grey prediction with PID control. Furthermore, a new adjustment mechanism is presented to change the grey step size, which is simple, automatic, less time-consuming, and efficient. Simulations and experiments on the actuator are carried out to evaluate the effectiveness of the proposed control method. In experiments, the velocity error is less than 0.05mm/s and the position error is less than 0.2mm. It shows the actuator meets the astronomical observation requirement totally.

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Section: Dynamic Bond Graph Model Of the Systemmentioning

confidence: 99%

Theoretical and Experimental Analysis of the Hydraulic Actuator Used in the Active Reflector System

Xiao

Liu

Wang

et al. 2018

Mathematical Problems in Engineering

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“…So, the new controller based on PI algorithm combined with feed-forward compensation is integrated into equation (16) …”

Section: Controller Design Based On Pi Algorithm With Feed-forward Comentioning

confidence: 99%

“…Sadamori et al 15 tried to reduce velocity fluctuation by dynamically adjusting the pump swash plate. Ahn et al 16 proposed a backstepping algorithm to improve robustness of the pumpcontrolled system. Busquets and Ivantysynova 17 put forward an adaptive control based on back stepping.…”

Section: Introductionmentioning

confidence: 99%

Research on hydraulic pump displacement control using PI and feed-forward compensation

Song

Wang

Ren³

et al. 2017

Advances in Mechanical Engineering

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The pump-displacement-controlled actuator offers a very promising alternative and energy-saving solution for many applications in construction machines. It has proven to be with high fuel economy by eliminating the metering losses associated with hydraulic valves. However, actuator oscillation is observed while working with fluctuated velocity or dynamic loads due to slow dynamic response and low tracking accuracy of the pump-controlled actuator. To improve control quality, a new proportional-integral algorithm combined with feed-forward compensation is put forward in this article. Based on the analysis of the swash plate adjustment mechanism, the state-space equation is established. And then, simulation and experimental studies were carried out. Both simulation and experimental results show that the new controller based on proportional-integral algorithm with feed-forward compensation achieves higher dynamic response and tracking accuracy than the conventional proportional-integral controller. And the actuator oscillation is eliminated.

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“…Load alteration is another system parameter used to verify the performance of the proposed controller proposed by the researchers in [6,10,14,15,19,[20][21][22][23][24][25]. Different material, environment, and sizes required different forces to be carried, hold, and formed.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Parameter Variation in Open-Loop and Closed-Loop Control Scheme for an Electro-hydraulic Actuator System

Soon

Ghazali

Jaafar

et al. 2016

IJCA

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Adaptive Backstepping Control of an Electrohydraulic Actuator

Cited by 253 publications

References 15 publications

Theoretical and Experimental Analysis of the Hydraulic Actuator Used in the Active Reflector System

Theoretical and Experimental Analysis of the Hydraulic Actuator Used in the Active Reflector System

Research on hydraulic pump displacement control using PI and feed-forward compensation

The Effects of Parameter Variation in Open-Loop and Closed-Loop Control Scheme for an Electro-hydraulic Actuator System

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