Simulation of Closed-Loop Paper Tension Control System

2013 ◽  
Vol 329 ◽  
pp. 434-437
Author(s):  
Yu Qiu Sun ◽  
Ji Bin Zhao ◽  
Jian Xin Sun ◽  
Ji Fei Cai

Paper tension is the most important control parameter in roll material production that directly impacts the printing quality of the web offset. Based on the closed-loop paper tension control theory, by conducting a research into the simulation of paper tension control system with MATLAB/SIMULINK, presented the closed-loop control diagram about the paper tension control system. Under different control parameter, the value of the overshoot, respond speed and residual of the system varies. As a result, the quantitative research on the simulation of the system offers a valid means in improving the control accuracy.

2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Zhiqiang Wang ◽  
Haibao Nan ◽  
Tingna Shi ◽  
Qiang Geng ◽  
Changliang Xia

In a winding system, it is very important to control the tension precisely. Based on the process of rewinding and unwinding, a sensorless tension control method with PI parameters of adaptive speed controllers is proposed in this paper. According to the principle of torque balance, a tension observer is designed to replace the tension sensor, and the observed value instead of the measured value of tension is used as feedback. Then the measurement delay caused by tension sensor is reduced. For the time-variable inertia, Landau discrete-time recursive algorithm is used to estimate the inertias of the rewind and unwind motors. Moreover, the estimated inertias are used to adjust the PI parameters of the speed controllers. As the tension control system has the ability to adapt to the change of inertia, its dynamic performance is improved to some extent. In addition, the proposed sensorless tension control method is simple and easy to implement, which only uses the current and speed signals of the motors without any additional hardware needed. At last, the feasibility and effectiveness of the proposed method are verified by the experimental results.


2012 ◽  
Vol 627 ◽  
pp. 444-448
Author(s):  
You Zhao Wang ◽  
Huang Jing ◽  
Han Wei Chen

This paper does some researches on the framework and control mechanism of traction and take-up system of Loom, which keep the winding tension constant. A traction and take-up control model using fuzzy neutral network adaptive PID algorithm is designed. The results prove this model is available in constant tension control system. The constant tension control system makes traction and take-up system operate more precisely and improves the quality of fabric.


2013 ◽  
Vol 444-445 ◽  
pp. 1740-1744
Author(s):  
Rong Ping Xue ◽  
Zu Shun He ◽  
Sen Hui ◽  
Shi Ying Qiu ◽  
Huan Yang ◽  
...  

In this paper,for the precision of tension control affects the products quality and performance of the device. In the coiling process while the tension control of the lead plate coiling machine is not stable, it will cause uneven thickness of lead sheet, affect the winding quality of lead sheets, and impact electrolysis efficiency. In this paper, according to the requirements of electrolytic process and the lead sheet winder actual working process, designing a tension control system in order to improve the precision of tension control.


2010 ◽  
Vol 43 ◽  
pp. 221-224
Author(s):  
Wan Xing ◽  
Yong Jiang

The copper foil post-processor is used to deal with the surface of copper, and the tension control is an important issue for the quality of the product.With reference to the process of copper foil post-treatment, this paper introduces the hardware and software design of its tension control system respectively and the result has fulfilled the tension control function very well.


2020 ◽  
Vol 11 (1) ◽  
pp. 84
Author(s):  
Jožef Ritonja ◽  
Andreja Goršek ◽  
Darja Pečar

Fermentation is a crucial bioengineering process, existentially important for modern society. The most commonly used production unit for this process is the batch bioreactor. Its main advantage is unsophisticated construction, which unfortunately results in its incapability of controlling the transient state of the fermentation process. Control of the fermentation can significantly improve the quality of the product and the economy of the process; therefore, it is useful for bioreactors to be equipped with a control system. Based on the experimental results, we used an optimization method to identify a mathematical model that describes the impact of the bioreactor’s temperature on the fermentation’s transient process. The obtained model was applied for the design and synthesis of the closed-loop control system. Simulations and experiments confirmed the effectiveness of the proposed control system. In this way, we can ensure the consistent quality of the produced probiotic product, increase the amount of the product, and shorten the fermentation time. The original results display the feasibility of the closed-loop control of the batch bioreactor’s fermentation process by changing the temperature. So far, the process has been carried without a closed-loop control system. The problem is current and has not yet been solved sufficiently. There are many attempts published; one of the last shows the possibility of controlling the fermentation process by changing the oxygen supply, which is more complex and expensive for realization than the solution from our study.


2014 ◽  
Vol 926-930 ◽  
pp. 1558-1561
Author(s):  
Jian Xin Yuan ◽  
Meng Ke Lu

In industrial production process, Often due to winding or rewind tension control during problems lead to product quality problems. The reeling tension system complexity, uncertainty, simple open loop control cannot achieve the desired effect. The system use the MITSUBISHI FX3U series PLC as the control core. By sampling the floating roll location, the use of digital PID closed loop control winding motor speed so that the floating roll location constant so as to realize the constant tension control of winding


2014 ◽  
Vol 621 ◽  
pp. 419-424
Author(s):  
Yan Bo Feng ◽  
Bo Chen ◽  
Tao Sun

Nowadays, wire sawing becomes the most advanced brittle crystals slicing technology because of its advantages of slicing larger crystals ingots into very small thickness, high surface quality, high yield wafers. In the process, the thin wire, which is the processing tools, travels at high speed, and subjects to external excitation from many aspects. Wire saw tension control is the core and difficulty of the control system. Mathematical models of tension subsystems were studied. The control strategy of swing arm motor tension direct closed-loop combination of speed difference indirect closed-loop was proposed. The developed tension control hardware and software system reached the functional requirements and technical indicators, and constant tension precision control was solved effectively.


2014 ◽  
Vol 687-691 ◽  
pp. 121-125
Author(s):  
Lei Zhang ◽  
Si Yun Tan ◽  
Wen Lei Gu

The objective of this paper is to research on the application of proportional controller based on phase plane division in the tension control system of coating device to improve the quality of tension control. Firstly, the control strategy of proportional controller based on phase plane division and the parameter tuning methods are analyzed. Then the simulation model of tension control system is built with the help of MATLAB SIMULINK. Finally, the simulation results are given. Simulation results indicate that the tension control system is effectively controlled by the proportional controller based on phase plane division.


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