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首页> 外文期刊>Fortschritt-Berichte VDI, Reihe 8. Mess-, Steuerungs- und Regelungstechnik >Model-Based Thickness and Tension Control in Multi-Stand Cold Rolling Mills
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Model-Based Thickness and Tension Control in Multi-Stand Cold Rolling Mills

机译：多机架冷轧机中基于模型的厚度和张力控制

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In this work, a scalable approach for the control of thickness and tension in multi-stand cold rolling mills has been developed It is based on the so-called Internal Model Control (IMC). Starting from the well-known IMC concept for Single-Input Single-Output (SISO) systems, the approach allows to extended the coupled SISO controllers to multivariable controllers. In this way couplings between control loops in a decentralized IMC control structure can be handled. It is shown in simulations, which loops couplings need to be considered in cold rolling mills to achieve a high control performance. Besides the couplings between strip thickness and tension, the interaction of roll speed and strip tension plays a dominant role. Furthermore different sensor concepts have been compared to each other and the influence of additional sensors on the achievable control performance has been evaluated. Especially at low speed, the potential for an enhanced sensor and control concept is large, resulting in a reduction of off-gauge lengths.
机译：在这项工作中，已经开发了一种可扩展的方法，用于控制多机架冷轧机的厚度和张力，该方法基于所谓的内部模型控制（IMC）。从众所周知的单输入单输出（SISO）系统的IMC概念开始，该方法允许将耦合的SISO控制器扩展到多变量控制器。通过这种方式，可以处理分散的IMC控制结构中控制回路之间的耦合。仿真结果表明，在冷轧机中需要考虑环形联轴器，以实现较高的控制性能。除了带材厚度和张力之间的耦合外，轧制速度和带材张力之间的相互作用也起主要作用。此外，将不同的传感器概念进行了比较，并评估了其他传感器对可实现的控制性能的影响。尤其是在低速行驶时，增强传感器和控制概念的潜力很大，从而减小了超距长度。

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