Robust control of an electro-hydraulic proportional speed control system with a single-rod hydraulic actuator

Jian, Yang

doi:10.3901/cjme.2005.04.597

Cited by 7 publications

(6 citation statements)

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“…Comprehensively consider equations ( 4), ( 8), (11), and (12), and perform Laplace transform. The relationship between the control input voltage u and the piston output displacement x can be approximated as second-order system.…”

Section: Model Simplificationmentioning

confidence: 99%

“…To achieve the high-performance tracking control of EHSS, model-based design method, known for its rigor, is highly focused in the modern control theory, such as adaptive control, 4 robust control, 5 variable structure control, 6 – 8 H-infinity, 9 – 11 fuzzy control, 12 , 13 neural network control, 14 , 15 feedback linearization control, 16 – 18 internal model control (IMC), 19 back-stepping control, 20 and so forth. However, the influence of various uncertain factors on the control performance is rarely considered comprehensively, such as change of the load, the modeling error, the sensor noise, and the un-modeled dynamics.…”

Section: Introductionmentioning

confidence: 99%

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Linear active disturbance rejection control for the electro-hydraulic position servo system

Jin

Song

et al. 2021

Science Progress

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Valve-controlled asymmetric cylinder is widely used in servo loading system. As a kind of typical electro-hydraulic servo system (EHSS), it inherently has the characteristics such as high order nonlinear, strong coupling, and uncertain, therefore, conventional control strategy is difficult to satisfy the requirements of high-performance control. In this paper, a novel linear active disturbance rejection control (LADRC) method was proposed, in which the internal and external disturbances were actively estimated by the third-order linear extended state observer (LESO) in real-time, and rejected by the control law of proportional integral control (PID) with acceleration feed-forward. The stability of the proposed method was proved, and the influence rules of the LADRC parameters on the control performance were revealed by simulation. Finally, comparative experiments between LADRC and PID control were carried out, results showed that the disturbances can be effectively compensated and the control goals can be successfully achieved with the proposed method.

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Section: Model Simplificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Linear active disturbance rejection control for the electro-hydraulic position servo system

Jin

Song

et al. 2021

Science Progress

View full text Add to dashboard Cite

show abstract

“…(3) In the work environment conditions it cans long-term reliable operation. These requirements and the type of sensor and transmitter, instruments of the precision grade and range, the installation of sensors and instrument use and protection measures have close relationship [6].…”

Section: Applied Mechanics and Materials Vols 602-605mentioning

confidence: 99%

Design Analysis of Electrical Control System for the Gear Teaching Simulator

Shang

Lin

Zhang

et al. 2014

AMM

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Through the analysis of technical performance indicators of the gear teaching simulator, main technical indexes and design goals of electric control system are proposed; Scheme of electrical control system is analyzed; Control systems, controlled variables, operating variables and detection devices are selected. For the realization of electric control system design of the gear teaching simulator, improving the performance of the gear teaching simulator, it has an important guiding significance.

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“…Nevertheless the former's gain is higher than the latter's because of the introduction of the unstable subsystem E 1 . Compared with [24], our method's tracking performance is much better due to our controller having a dynamic gain, which can vary with θ continuously.…”

Section: B Design a Robust Tracking Controllermentioning

confidence: 99%

Parameter-dependent controller design for electro-hydraulic servo system

Weng

Mao

Liang

2010

2010 International Conference on Intelligent Control and Information Processing

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This paper is concerned with the problem of robust controller design for electro-hydraulic servo systems driven by double-rod hydraulic actuators. Firstly, by introducing a linear varying parameter, an electro hydraulic servo system is described as a linear parameter varying(LPV) model. Secondly, based on this LPV model and a parameter-dependent Lyapunov approach, two parameter-dependent controllers are established for the stabilization and tracking problems, respectively. The obtained controllers are simple and their gains can vary with the parameter measured online. Finally, the numerical simulations demonstrate the satisfactory performance of the proposed controllers.

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Robust control of an electro-hydraulic proportional speed control system with a single-rod hydraulic actuator

Cited by 7 publications

References 0 publications

Linear active disturbance rejection control for the electro-hydraulic position servo system

Linear active disturbance rejection control for the electro-hydraulic position servo system

Design Analysis of Electrical Control System for the Gear Teaching Simulator

Parameter-dependent controller design for electro-hydraulic servo system

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