摘要
针对国内稀释水水力式流浆箱配套的稀释水阀在控制方面遇到的技术障碍,研制出一体化板式控制器,使用单片机PWM复用端口产生控制步进驱动芯片的高速脉冲,通过模拟量输入复用端口采集阀位信号,提出了使用加减速脉冲控制算法和程序提高阀位控制精度的方法。配套稀释水阀执行器在千分之一执行步长时的误差不大于2.8%,具有1000步以上的置信精度。
Dilution valve are the most important equipment of dilution water headbox,in order to solve the problems of the con-trol,a new type of circuit board were developed.Which use the MCU’s multifunction port of PWMgenerates the high-speed pulse signal to control the stepper motor drive chips,via the multifunction port of analog to collect the valve position.A new method which use the acceleration-deceleration arithmetic and programs were proposed to improve the valve’s accuracy,the total error of dilution actuator were less than 2.8% in one thousandth step length,and at least have more than 1000 steps credible accuracy.
出处
《流体机械》
CSCD
北大核心
2015年第4期48-52,79,共6页
Fluid Machinery
基金
国家自然科学基金项目(51375286)
陕西省科学技术研究发展计划项目(2014K07-22)
陕西省科技统筹计划项目(2012KTCQ01-19)
陕西省自然科学基金重点项目(2012JZ7002)
西安市科技项目(CXY1431-2)
西安市未央区科技资助项目(201311)
关键词
稀释水阀
控制器
加减速曲线
单片机
执行器
dilution control valve
controller
acceleration-deceleration curve
MCU
actuator
