UHMWPE纤维联合生产线自动控制系统介绍

利用富士触摸屏UG30系列程序操作显示器(简称POD)的通讯、控制功能构建一套开放式结构的自动化平台,通过与变频器-同步电机及PID控制器的直接联网,实现了全部电控设备的主控制台集中控制。该控制系统实现了丝束的拉伸速度变频控制,清洗机系统进出液流量及液位控制,清洗机系统与外围液体回收系统物料输送自动化,干燥机风量、风温自动控制等。传动控制采用同步电机与变频的开环控制,高精度变频调速器和永磁同步电机构成系统,无需采用闭环控制,可保证电机转速精度达到0．1％-0．01％。

Introduction autocontrol system for UHMWPE fiber relative molecular weight polyethylene

A set of automation platforms with open architecture were established based on the communication and control functions of Fuji Programmable Operation Display ( POD). The central control of the electronic-controlled equipments through the main console was realized by directly connecting the automation platforms, frequency converter of synchronous motor and PID controller into a network. The autocontrol system accomplished the frequency conversion control of tow drawing speed, the inlet and outlet liquid flow and liquid level control of cleaning unit, the material transportation automation of cleaning unit and the surrounding liquid recovery system, air quantity and temperature autocontrol for driers. The drive control was achieved by applying the open-loop control of synchronous motor and frequency converter. The accuracy of motor speed up to 0. 1%-0. 01% can be ensured without close-loop control by the combination of high-accuracy frequency speed regulator and permanent magnet synchronous motor.