Robust H¿ Fixed Order Control Strategies for Large Scale Web Winding Systems

Knittel, Dominique; Vedrines, Marc; Henrion, Didier; Pagilla, Prabhakar R.

doi:10.1109/isic.2006.285637

Cited by 6 publications

(5 citation statements)

References 14 publications

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“…A MATLAB software called HIFOO (H-Infinity Fixed-Order Optimization) has been released in late 2005 [15], and uses local optimization techniques. This software, used in this work, has also been used for the reduced order controller calculation in web handling systems with load cells [17].…”

Section: Reduced Order Centralized Control Designmentioning

confidence: 99%

Modelling and H∞ low order control of web handling systems with a pendulum dancer

Vedrines

Knittel

2008

IFAC Proceedings Volumes

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Section: Reduced Order Centralized Control Designmentioning

confidence: 99%

Modelling and H∞ low order control of web handling systems with a pendulum dancer

Vedrines

Knittel

2008

IFAC Proceedings Volumes

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“…7. In previous studies (Knittel, et al, 2006b) each controller dedicated to each subsystem was synthesized separately. Now, the decentralized controllers are calculated in one step (for a plant with reduced number of motors) taken into account the interactions between consecutive subsystems.…”

Section: Decentralized Control With Feedforwardmentioning

confidence: 99%

“…Other H ∞ control strategies with full order are presented in (Knittel, et al, 2006a) and with reduced order and full structure in (Knittel, et al, 2006b). It is shown that such a strategy leads to much improved web tension and velocity regulation performance.…”

Section: Introductionmentioning

confidence: 99%

Fixed – Order and Structure H∞ Control With Model Based Feedforward for Elastic Web Winding Systems

Knittel

Henrion

Millstone

et al. 2007

IFAC Proceedings Volumes

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In web transport systems, the main concern is to control independently speed and tension in spite of perturbations such as radius variations and changes of setting point. This paper presents the application of nonsmooth nonconvex optimization techniques to design centralized fixed order and decentralized fixed order and fixed structure H ∞ controllers with model based feedforward for web winding systems. The approach provides improved web tension and velocity regulation. First, mathematical models of fundamental elements in a web process line are presented. A state space model is developed which enables calculation of the phenomenological model feedforward signals and helps in the synthesis of H ∞ controllers around the set points given by the reference signals. The H ∞ control strategies with additive feedforward have been validated on a nonlinear simulator identified on a 3-motor winding test bench.

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“…A decentralized adaptive controller with model based feedforward was developed and experimentally verified in [12]. As the web processing plants are known as highly resonant systems with strong coupling between the variables to control, several improvements of multivariable controllers based on robust control have been introduced to address the resonant effects and tension control while maintaining performance [13][14][15][16][17][18][19][20]. Although most of these methods resulted in acceptable control performance, they relied too heavily on the system model.…”

Section: Introductionmentioning

confidence: 99%

A Decoupling Control Algorithm for Unwinding Tension System Based on Active Disturbance Rejection Control

Liu

Mei

Kong

et al. 2013

Mathematical Problems in Engineering

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This paper presents a new control methodology based on active disturbance rejection control (ADRC) for designing the tension decoupling controller of the unwinding system in a gravure printing machine. The dynamic coupling can be actively estimated and compensated in real time, which makes feedback control an ideal approach to designing the decoupling controller of the unwinding system. This feature is unique to ADRC. In this study, a nonlinear mathematical model is established according to the working principle of the unwinding system. A decoupling model is also constructed to determine the order and decoupling plant of the unwinding system. Based on the order and decoupling plant, an ADRC decoupling control methodology is designed to enhance the tension stability in the unwinding system. The effectiveness and capability of the proposed methodology are verified through simulation and experiments. The results show that the proposed strategy not only realises a decoupling control for the unwinding system but also has an effective antidisturbance capability and is robust.

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Robust H¿ Fixed Order Control Strategies for Large Scale Web Winding Systems

Abstract: Abstract-

Cited by 6 publications

References 14 publications

Modelling and H∞ low order control of web handling systems with a pendulum dancer

Modelling and H∞ low order control of web handling systems with a pendulum dancer

Fixed – Order and Structure H∞ Control With Model Based Feedforward for Elastic Web Winding Systems

A Decoupling Control Algorithm for Unwinding Tension System Based on Active Disturbance Rejection Control

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