Observer-based tension feedback control with friction and inertia compensation
Observer-based tension feedback control with friction and inertia compensation
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DOI：
10.1109/tcst.2002.806464
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发表时间：
2003-01
期刊：
影响因子：
--
通讯作者：
K. Lin
中科院分区：
文献类型：
--
作者：
K. Lin
低成本和高生产率是卷筒纸输送系统设计的两个主要目标。实现低成本的一种方法是通过实施观测器技术来代替张力传感器。为了实现高生产率，通常需要提高处理速度。然而，由于处理速度或速度的变化很高，系统摩擦和辊的旋转惯性可能在用于张力估计和控制的观测器技术的实施中引起问题。以前的研究很少在一篇文章中考虑摩擦和惯性问题。本文提出了一种带摩擦和惯性补偿的观测器。该观测器具有反馈结构，能够精确地估计卷筒纸张力，而不考虑摩擦和惯性的影响。实施了线性化和权力下放技术。所提出的双稳态张力反馈控制器的设计是在频域中进行的。将放卷辊偏心视为系统的正弦扰动。提出了一种控制器和轧辊偏心的设计过程进行了讨论。仿真和实验结果表明，所提出的基于双稳态的张力反馈控制器与传统的张力反馈控制器相比具有很好的性能。
Low cost and high productivity are two primary goals in design of a web transport system. One approach to achieve low cost is through the implementation of observer techniques in place of tension transducers. To achieve high productivity, it is normally required to increase the process speed. However, as the process speed or variation of the speed is high, system friction and inertia of rotation of rolls could cause problems in implementation of observer techniques for tension estimation and control. Few of the previous studies have considered the problems of friction and inertia in a single article. This paper proposes an observer with friction and inertia compensation. The proposed observer has a feedback configuration and it is able to estimate web tension precisely regardless of the effects of friction and inertia. Linearization and decentralization techniques are implemented. Design of the proposed observer-based tension feedback controller is performed in the frequency domain. Eccentricity of unwind roll is considered as sinusoidal disturbances to the system. A procedure for design of the proposed controller and eccentricity of rolls are discussed. Simulation and experimental works have been performed and they show that the proposed observer-based tension feedback controller performs as well as a classical tension feedback controller using a tension transducer.