A Decentralized Model Reference Adaptive Controller for Large-Scale Systems

Pagilla, Prabhakar R.; Dwivedula, Ramamurthy V.; Siraskar, N.B.

doi:10.1109/tmech.2007.892823

Cited by 95 publications

(27 citation statements)

References 19 publications

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“…Trong các hệ thống này, việc sử dụng các hệ thống từ trục tới trục (roll-to-roll, R2R) làm nâng cao hiệu suất, tốc độ sản suất, và chất lượng của sản phẩm [1]. Các hệ thống vận chuyển vật liệu mềm và các vấn đề điều khiển đã được nghiên cứu trong một số tài liệu [2][3][4][5][6][7][8][9][10]. Hầu hết các nghiên cứu trên hệ thống R2R tập trung vào vấn đề điều khiển lực căng và điều khiển tốc độ cho vật liệu mềm, Trong nghiên cứu của Pagilla và các đồng nghiệp [9] đã sử dụng một mô hình điều khiển thích nghi phân tán để giải quyết vấn đề thay đổi đường kính của bộ cuốn và xả liệu có kể đến nhiễu cho một hệ thống vận chuyển vật liệu mềm.…”

Section: Giới Thiệuunclassified

Adaptive control for a rewinding process of a roll-to-roll system

Nguyen

Nguyen²

2015

Sci. Tech. Dev. J.

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In this paper, transverse vibration and transport velocity controls of a moving web in a rewinding section of a roll to roll system are investigated. The moving web is modeled as an axially moving beam. Two independent adaptive control schemes are proposed. The first control scheme using a control force exerted from a hydraulic actuator is to suppress transverse vibrations of the moving web of unknown mass per unit length under a spatially varying tension and a time-varying transport velocity. The second control scheme using a control torque applied to the rewind roller is to maintain the transport velocity levels of the moving web in spite of disturbances such as the variations of rotating elements and unknown bearing friction. From the decentralized control viewpoint, the uniformly exponential stability for suppressing the transverse vibrations and the uniformly asymptotic stability for maintaining the transport velocity are achieved. However, as a whole, the uniformly asymptotic stability is concluded. Simulations for demonstrating the effectiveness of the proposed control schemes are presented.

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Section: Giới Thiệuunclassified

Adaptive control for a rewinding process of a roll-to-roll system

Nguyen

Nguyen²

2015

Sci. Tech. Dev. J.

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“…Assumptions 1 and 2 are standard and denote the matching conditions with model matching control. Many works [13,31,27,28] have been proposed based on the Assumptions. For the nonmatching case, uniform bounded results can be obtained by using some approaches such as the sliding mode design method proposed in [33], but the asymptotic tracking can not be reached.…”

Section: Remark 2 Frommentioning

confidence: 99%

Robust adaptive tracking control of distributed delay systems with actuator and communication failures

Jin

Yang

2011

Asian Journal of Control

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This paper is concerned with the robust adaptive fault-tolerant tracking control problem for a class of distributed delay systems against faulted and perturbed actuators and communications. As all the faults on actuators and communications, network delays in control and communication channels, and perturbations in communications and exogenous disturbances are unknown, some adaptation schemes are developed to adjust controller parameters in real-time for constructing a class of distributed compensation controllers based on the delayed signals. Then, according to the information from the adaptive mechanism, the effect of each actuator and communication fault, network delay, channel perturbation and exogenous disturbance can be eliminated completely by using the proposed distributed adaptive-state feedback controllers. Furthermore, asymptotic tracking results of the distributed closed-loop systems can be achieved based on Lyapunov stability theory. An example is provided to further illustrate the effectiveness of the proposed direct adaptive design technique.

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“…The issue of parameter dependence can be addressed by adopting the recent real-time parameter estimation mechanism as in [16]- [20]. Sliding-mode and adaptive controls alleviated the parameter dependence level with the inclusion of dynamic compensators dominating or canceling out the disturbances in the feed-forward loop [21]- [23].…”

Section: Introductionmentioning

confidence: 99%

Velocity-Sensorless Decentralized Tension Control for Roll-to-Roll Printing Machines

Kim

2020

IEEE Access

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This paper presents a velocity-sensorless decentralized tension control scheme without true machine parameter dependence for roll-to-roll printing machines. Both the nonlinear nature and parameter uncertainties are taken into account the development task. As the first merit, the proposed observer eliminates the requirement of velocity feedback without any plant information even the nominal parameters. The introduction of the active-damping with the estimated state reduces the closed-loop system order to 1 by the pole-zero cancellation using the specified feedback gains. Finally, the disturbance observer (DOB) replaces the regulation error integrators with the closed-loop robustness improvement against the high-frequency disturbances. The MATLAB/Simulink-based simulations validate the effectiveness of the proposed decentralized scheme. INDEX TERMS Roll-to-roll printing machine, decentralized control, observer, pole-zero cancellation.

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A Decentralized Model Reference Adaptive Controller for Large-Scale Systems

Cited by 95 publications

References 19 publications

Adaptive control for a rewinding process of a roll-to-roll system

Adaptive control for a rewinding process of a roll-to-roll system

Robust adaptive tracking control of distributed delay systems with actuator and communication failures

Velocity-Sensorless Decentralized Tension Control for Roll-to-Roll Printing Machines

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