Averaged state model and sliding mode observer for on/off solenoid valve pneumatic actuators

Laib, Khaled; Meghnous, A. R.; Pham, Minh Tu; Lin-Shi, Xuefang

doi:10.1109/acc.2016.7526072

Cited by 5 publications

(5 citation statements)

References 23 publications

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“…We extend our previous results presented in [23] where a full-state averaged model to describe the on/off pneumatic system behavior was elaborated. Our contributions can be summarized as follows.…”

Section: Paper Contributionssupporting

confidence: 71%

“…(22) and Eqn. (23). These observers are used in closed loop to control the actuator position y using sliding-mode controller to track a desired position y d given by 0.04 sin (πt).…”

Section: Resultsmentioning

confidence: 99%

“…( 22) and of Eqn. (23) are used in closed loop with the controller of Eqn. (18) to determine the different inputs U i , see Fig.…”

Section: Control and Observation Strategymentioning

confidence: 99%

See 2 more Smart Citations

Average Modeling and Nonlinear Observer Design for Pneumatic Actuators With On/Off Solenoid Valves

Laib

Pham

Lin-Shi

et al. 2021

Journal of Dynamic Systems, Measurement, and Control

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This paper presents an averaged state model and the design of nonlinear observers for an on/off pneumatic actuator. The actuator is composed of two chambers and four on/off solenoid valves. The elaborated averaged state model has the advantage of using only one continuous input instead of four binary inputs. Based on this new model, a high gain observer and a sliding mode observer are designed using the piston position and the pressure measurements in one of the chambers. Finally, their closed-loop performances are verified and compared on an experimental benchmark.

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Section: Paper Contributionssupporting

confidence: 71%

“…(22) and Eqn. (23). These observers are used in closed loop to control the actuator position y using sliding-mode controller to track a desired position y d given by 0.04 sin (πt).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Average Modeling and Nonlinear Observer Design for Pneumatic Actuators With On/Off Solenoid Valves

Laib

Pham

Lin-Shi

et al. 2021

Journal of Dynamic Systems, Measurement, and Control

Self Cite

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“…Western manufacturers develop a wide range of monolithic integrated circuits (IC) for microprocessor control of the coil current, ranging from control windings for hammers of matrix printers [2] to electromagnet windings for high-power electromagnetic devices [3][4][5][6][7][8]. There is an extensive literature on the development of the electromagnet current control units [9][10][11][12][13][14][15]. However, it is assumed in all these papers that there may be outputs from the winding constant voltage source as well as from the winding itself.…”

Section: Introductionmentioning

confidence: 99%

Control Unit for Electromagnet Current

et al. 2019

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The paper deals with the results of research and development of the electromagnet current control unit for the case when only two outputs without specifying the polarity of the source connection may be available from a circuit with a series of DC voltage sources and electromagnet winding. Theoretical results have been verified by modelling in Matlab-Simulink environment as well as by testing the starter of the contactor air switch.

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“…PID control and IMC are well-known standard control methods, which result in equivalent output control structures and are thus comparable in terms of their robustness and tracking performance. The main idea of SMC is the robust control of a system using a discontinuous feedback law, see, e.g., [6], [7], [8], [9]. This approach can robustly handle parameter variations, but typically requires a tailored tuning for a given system to meet the high demands on the closedloop performance.…”

mentioning

confidence: 99%

Adaptive Two-Degrees-of-Freedom Current Control for Solenoids: Theoretical Investigation and Practical Application

Schwegel

Glück

Shaferman

et al. 2023

IEEE Trans. Contr. Syst. Technol.

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In this article, an adaptive two-degrees-of-freedom current control algorithm for solenoids is presented comprising an adaptive pole placement controller in combination with a regularized least-squares parameter estimation law. An additional adaptive feedforward controller takes advantage of the estimated plant parameters to further enhance the tracking performance. The stability of the overall closed-loop system is rigorously proven. The proposed solution differs from existing approaches by the adaptive feedforward controller and the way the parameter estimation is performed. The control concept is applied with the same controller parametrization to three solenoids from different applications, with substantially differing parameters. The experimental results show high tracking performance and fast parameter convergence even with poor initial estimates and despite the nonlinear dependence of the inductance on the current and position. The experimental results are also compared to two benchmark control design paradigms known from the literature, i.e. a second-order sliding mode controller and a nonlinear model reference adaptive control solution, which are both outperformed by the proposed controller.

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Averaged state model and sliding mode observer for on/off solenoid valve pneumatic actuators

Cited by 5 publications

References 23 publications

Average Modeling and Nonlinear Observer Design for Pneumatic Actuators With On/Off Solenoid Valves

Average Modeling and Nonlinear Observer Design for Pneumatic Actuators With On/Off Solenoid Valves

Control Unit for Electromagnet Current

Adaptive Two-Degrees-of-Freedom Current Control for Solenoids: Theoretical Investigation and Practical Application

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