Web Tension Observer Based Control for Single-Span Roll to Roll Systems

Tong, Thi Ly; Duong, Minh Duc; Nguyen, Danh Huy; Nguyễn, Tùng Lâm

doi:10.1007/978-3-030-64719-3_96

Cited by 7 publications

(5 citation statements)

References 8 publications

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“…However, the PID controller lacks robustness and adapts to nonlinear models with uncertainty and changes in model parameters. For this problem, nonlinear control algorithms under the backstepping technique are a solution developed by many researchers and have had specific results [8,9]. In [10,11], the authors have designed a controller that is a perfect combination of the backstepping technique and a modified genetic algorithm (GA).…”

Section: Introductionmentioning

confidence: 99%

A sliding mode controller integrated moment of inertia observer of web handling systems

2023

jsthaui

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This study presents web handling systems with the characteristic of a changing moment of inertia and operating radius of rolls. Commonly, sliding mode control (SMC) is used to control the web tension of this system due to its robustness against modeling imprecision. However, this method still needs to consider the components of uncertainty, precisely the moment of inertia. A sliding mode controller integrated moment of inertia observer is the novel of the paper. The stability of the controlled system is proved by using Lyapunov's stability theory, also presented in this paper. The simulation results are compared to clarify that the proposed controller has reliable performance.

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Section: Introductionmentioning

confidence: 99%

A sliding mode controller integrated moment of inertia observer of web handling systems

2023

jsthaui

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“…(2) A hierarchical control structure is proposed with the combination of FOSMC techniques, and first‐order low‐pass filters will promote robustness against matched, unmatched uncertainties, the explosion of terms and chattering effects that have not been solved in the studies 22‐26 . Apart from that, the use of fractional‐order sliding surface plays a vital part in manually optimizing system responses, and hence system performance is improved compared to using traditional sliding surfaces as shown in the works 27‐30 …”

Section: Introductionmentioning

confidence: 99%

“…24,25,50 (2) A hierarchical control structure is proposed with the combination of FOSMC techniques, and first-order low-pass filters will promote robustness against matched, unmatched uncertainties, the explosion of terms and chattering effects that have not been solved in the studies. [22][23][24][25][26] Apart from that, the use of fractional-order sliding surface plays a vital part in manually optimizing system responses, and hence system performance is improved compared to using traditional sliding surfaces as shown in the works. [27][28][29][30] (3) Instead of just approximating the moment of inertia in the study 45 or calculating uncertainties and disturbances by using fuzzy logic in the study, 30 an RBF neural network-based robust controllers (RBFNN-BRC), which is capable of adapting to uncertainties and disturbances, is implemented to estimate the complete model.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, a Backstepping‐based adaption law was explored, 25 which has the benefit of disturbance removal through estimating unknown parameters so that the controller guarantee outputs track set value. With the tension observer, 26 the Backstepping Control (BSPC) suggested has undoubtedly been extended.In References 20,21, the structure retained the tension and velocity of a web span following the command value while making the system more compact without requiring tension sensors. Despite the undeniable contributions of the Backstepping technique to web winding systems, the explosion of terms effect that is caused by the derivative components is still stated as a major drawback affecting the output tension.…”

Section: Introductionmentioning

confidence: 99%

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Model‐free hierarchical control with fractional‐order sliding surface for multisection web machines

Dang

Nguyen

Tran

et al. 2022

Adaptive Control & Signal

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Due to the nonlinearities and dynamical properties of multisection web machines, it is essential to accomplish an appropriate mathematical model as well as design a compatible control scheme. A generalized fully driven web winding model is constructed taking unpredictable changes of moment of inertia and radius of rolls into consideration. In this article, a fractional‐order sliding surface algorithm‐based hierarchical control frame is applied to multisection web machines to deal with matched and mismatched uncertainties and disturbances. In addition, the Radius Basis Function neural network is deployed to estimate necessary system dynamics and the proposed control scheme taking advantage of first‐order low‐pass filters to produce virtual control signals without complicated calculation and attenuate the explosion of terms phenomenon. Finally, the semi‐global stability of the entire system is determined using Lyapunov's stability theory. The simulation results are presented to clarify the superior performance of robust control algorithm and approximation law in the presence of nonideal elements.

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“…In particular, the estimated parameters can be automatically initialized based on the relay feedback technique. Controllers designed by using the backstepping technique have been recently studied, and [11][12][13] have shown for the roll-to-roll system that the quality and stability of the system are guaranteed and the tension over-shoot is small. In fact, the web transport system is affected by various nonlinear elements such as friction, torque, and hardware features, and thus the control quality of the system is reduced, which leads to the phenomenon of the "explosion of terms".…”

Section: Introductionmentioning

confidence: 99%

Adaptive Control for Multi-Shaft with Web Materials Linkage Systems

Dang

Nguyen

et al. 2021

Inventions

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In this paper, a fuzzy disturbance observer and a high-gain disturbance observer based on a variable structure controller are applied to deal with imprecise multi-shaft with web materials linkage systems taking into account the variation of the moment of inertia. Specifically, a high-gain disturbance observer and an adaptive fuzzy algorithm are separately applied to estimate system uncertainties and external disturbances. The high-gain disturbance observer is designed with auxiliary variables to avoid the amplification of the measurement disturbance, and the fuzzy disturbance observer has the advantage that it does not depend on model information. The convergence properties of the tracking error are analytically proven using Lyapunov’s theory. The obtained numerical results demonstrate the validity and the adaptive performance of the proposed control law in case the system is exposed to uncertainties and disturbances. Important remarks on the design process and performance benchmarks of the two observers are also demonstrated.

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Web Tension Observer Based Control for Single-Span Roll to Roll Systems

Cited by 7 publications

References 8 publications

A sliding mode controller integrated moment of inertia observer of web handling systems

A sliding mode controller integrated moment of inertia observer of web handling systems

Model‐free hierarchical control with fractional‐order sliding surface for multisection web machines

Adaptive Control for Multi-Shaft with Web Materials Linkage Systems

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