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Electronics 2019, 8(1), 60; https://doi.org/10.3390/electronics8010060

Lyapunov Based Reference Model of Tension Control in a Continuous Strip Processing Line with Multi-Motor Drive

1
Department of Electrical Engineering and Mechatronics, FEI TU of Košice, Letná 9, 042 00 Košice, Slovakia
2
Department of Energy Technology, Aalborg University, 6700 Esbjerg, Denmark
*
Author to whom correspondence should be addressed.
Received: 20 November 2018 / Revised: 21 December 2018 / Accepted: 26 December 2018 / Published: 4 January 2019
(This article belongs to the Special Issue Renewable Electric Energy Systems)
Full-Text   |   PDF [7661 KB, uploaded 7 January 2019]   |  

Abstract

The article describes design and experimental verification of a new control structure with reference model for a multi-motor drive of a continuous technological line in which the motors are mutually mechanically coupled through processed material. Its principle consists in creating an additional information by introducing a new suitable state variable into the system. This helps to achieve a zero steady-state control deviation of the tension in the strip. Afterwards, the tension controller is designed to ensure asymptotic stability of the extended system by applying the second Lyapunov method. The realized experimental measurements performed on a continuous line laboratory model confirm the advantages and correctness of the proposed control structure: it is simple, stable, robust against changes of parameters, invariant to operating disturbances and ensures a high-quality dynamics of the controlled system prescribed by the reference model. To demonstrate effectiveness of the design, the performance of the controller was compared with properties of a standard Proportional Integral Derivative/Proportional Integral (PID/PI) controller designed in frequency domain. View Full-Text
Keywords: multi-motor drive; strip processing; tension control; speed control; Lyapunov function; technological line multi-motor drive; strip processing; tension control; speed control; Lyapunov function; technological line
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Perduková, D.; Fedor, P.; Fedák, V.; Padmanaban, S. Lyapunov Based Reference Model of Tension Control in a Continuous Strip Processing Line with Multi-Motor Drive. Electronics 2019, 8, 60.

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