基于MFA-SM下细支卷烟烟丝含水率自动控制系统设计

Automatic Control System for Moisture Content of Fine Cut Cigarette under MFA-SM

摘要:

烟丝含水率是影响卷烟品质和口感的重要参数之一,过高或过低的烟丝含水率都会导致卷烟的燃烧不良、口味差异较大等问题。为了有效地控制烟丝含水率的稳定性,提高卷烟产品的质量稳定性,基于MFA-SM设计一种细支卷烟烟丝含水率自动控制系统。该系统框架有三层,即MFA-SM前端采集层、中间层以及终端控制层。设计系统硬件,包括水率数据采集设备、MFA-SM控制器、驱动器、微雾加湿器与干燥设备。利用水分仪采集烟丝含水率,并利用无线射频模块将数据传输给MFA-SM控制器,控制器运行双环控制模块中的内环为滑模控制模块,用于计算干燥设备控制参数,外环为无模型自适应控制模块,用于计算微雾加湿器控制参数。根据控制参数控制干燥设备和微雾加湿器运行,实现烟丝含水率自动控制。实验结果表明,设计系统应用下,含水率误差低于0.3%,拟合优度为0.952,具有更好的控制效果。

Abstract:

The moisture content of tobacco is one of the important parameters that affect the quality and taste of cigarettes. Excessive or insufficient moisture content of tobacco can lead to poor combustion and significant differences in taste of cigarettes. In order to effectively control the stability of the moisture content of cut tobacco and improve the quality stability of cigarette products, an automatic control system for the moisture content of fine cut tobacco is designed based on MFA-SM. The system framework has three layers, namely the MFA-SM front-end acquisition layer, the intermediate layer, and the terminal control layer. Design system hardware, including water rate data acquisition equipment, MFA-SM controller, driver, micro mist humidifier, and drying equipment. Using a moisture meter to collect the moisture content of tobacco, and using a wireless radio frequency module to transmit the data to the MFA-SM controller, the controller operates a sliding mode control module in the inner loop of the dual loop control module, which is used to calculate the control parameters of the drying equipment, and a model free adaptive control module in the outer loop, which is used to calculate the control parameters of the micro mist humidifier. Control the operation of drying equipment and micro mist humidifier according to control parameters to achieve automatic control of tobacco moisture content. The experimental results show that under the application of the designed system, the water content error is less than 0.3%, and the goodness of fit is 0.952, which has better control effect.