基于高速开关阀的气动执行器位置伺服控制

Position servo control for pneumatic actuator using high-speed switching valves

本文使用一种五点开关PWM控制算法对高速开关阀控气动执行器进行位置伺服控制。分析了开关阀的启闭滞后现象,并提出了一种修正方法,该方法可有效地消除系统的静态误差。实验结果表明,用高速开关阀可以实现快速、精确的气动执行器位置伺服控制。

In this paper, a pneumatic actuator position servo system is described, which controlled by a five-point switch PWM control method using high-speed switching valves. The switching hysteresis of switching valve is analyzed, and an improvement method is presented which can diminish the static error of the system effectively. The experimental results show that the pneumatic actuator position servo system can be implemented using high-speed switching valves fast and accurately.