基于STM32单片机的气动比例方向阀控制器  

Digital Controller for Pneumatic Proportional Directional Valve Based on STM32 Microcontroller

作　　者：袁月峰[1] 刘钢海[1] 陈典红[1] 

机构地区：[1]中国计量学院质量与安全工程学院

出　　处：《仪表技术与传感器》2013年第4期22-24,27,共4页Instrument Technique and Sensor

基　　金：国家质检总局科技计划项目(2012QK365)

摘　　要：针对气动比例方向阀控制器设计问题,提出了一种基于STM32F103单片机的新型数字式比例控制器。介绍了内嵌霍尔位置传感器的气动比例方向阀的工作原理,提出了STM32F103单片机比例控制器信号调理和电磁铁驱动等硬件电路方案,设计了带有抗积分饱和的数字PID控制算法,并在气动比例方向阀上对该数字控制器样机进行了试验研究。试验测试结果显示,该数字比例控制器能够对比例阀阀芯位置进行闭环控制,位移调节呈现良好的线性。阀芯的全行程响应频宽可达70 Hz,接近伺服阀水平。Aimed at the controller design for pneumatic proportional directional valve,a novel digital proportional controller based on STM32F103 microcontroller was proposed.The principle of pneumatic proportional directional valve with integrated Hall position sensor was introduced.Detailed hardware schematic of signal conditioning and solenoid driving circuit was proposed,digital PID control algorithm with anti-windup was presented.Several experiments on a pneumatic proportional valve using this digital controller were carried out.Experiment results show that the proportional valve core position can be closed-loop controlled using this digital controller.Valve core position tracking shows good linearity and frequency response bandwidth under full scale stroke is up to 70 Hz,almost reaching pneumatic servo valve level.

关 键 词：气动比例方向阀 比例电磁铁 STM32单片机 数字PID 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]