基于单片机的高压调节阀智能控制器设计  

Design of intelligent controller of high-pressure regulating valve based on SCM

作　　者：王明武[1] 王楠[1] WANG Mingwu;WANG Nan(School of Mechanical Engineering,Shaanxi University of Technology,Hanzhong 723001,China)

机构地区：[1]陕西理工大学机械工程学院,陕西汉中723001

出　　处：《现代电子技术》2020年第11期148-151,157,共5页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(51605269);陕西省大学生创新创业训练项目(2018067);陕西省教育厅专项科研计划项目(19JK0189);陕西省自然科学基础研究计划项目(2019JQ⁃882);陕西理工大学科研基金项目(SLG1817)。

摘　　要：针对适合高压的电控调节阀非常少且价格昂贵,以及不能实时自动调节等问题,设计了一种高压调节阀智能控制器,并从硬件设计及软件编程方面进行了详细介绍。控制器以单片机为主控制芯片,将电机、调节阀和编码器三者连接起来,开度大小通过编码器进行信号反馈。单片机将目标开度和当前开度进行比对以控制阀的调节方向和开度大小,并利用PID算法保证控制的精准度和响应度,下位机通过RS 232总线连接至上位机,上位机用来设置系统的参数。经测试表明,该系统实现了智能阀门定位器的开度控制和故障诊断等功能。Since the amount of electric control regulating valves suitable for high pressure is very small,the price is high,and the real-time automatic regulation cannot be realized,an intelligent controller of high-pressure regulating valve is designed.The hardware design and the software programming of the controller system is elaborated. The SCM(single chip microcomputer)is taken as the master control chip,the motor,regulating valve and encoder are connected,the size of the opening is fed back by the encoder. The target opening is compared with the current opening by the SCM to control the adjusting direction and opening of the control valve. The control accuracy and control responsiveness are achieved by the PID algorithm. The lower computer is connected to the upper computer by RS 232 bus,and the upper computer is used to set the system parameter. The test results show that this system can realize the functions of opening control and fault diagnosis of intelligent valve positioner.

关 键 词：高压调节阀智能控制器 调节阀结构设计 系统模块设计 阀门开度调节 在线监控 系统参数设置 

分 类 号：TN710-34[电子电信—电路与系统] TP138[自动化与计算机技术—控制理论与控制工程]