混合式步进电机的模糊数字控制系统研究

The system of fuzzy digital control of hybrid step motor

混合式步进电机作为一种高转矩低转速的伺服电机,广泛应用于受微处理器控制的需要高精度定位的场合。但是电机参数的时变性会在驱动电机运行时造成失步。开环控制效果不太理想,因此需要闭环控制。本文介绍了一种基于模糊控制的混合式步进电机控制系统,实验证明该控制系统能达到较好的控制精度。

Hybrid stepping motors, promising as a high torque and low-speed servomotors, are widely used in microcomputer-controlled machines. They have to perform high-precision positioning operations. But the variations of the mechanical configuration of the drive can lead to step losses. Moreover, the open-loop speed control is weak and a closed loop control is required. In this paper we propose applying fuzzy control theory to control the stepping motor. The very good accuracy of the proposed control algorithm is confirmed by experimental results.