基于 Simulink仿真的步进电机闭环控制系统分析分析转速输出曲线，提出了加入模糊速 度前馈控制环的系统改进方案 ，系统稳定性得到较大提 高。 - Based on the Simulink closed loop stepper motor speed control system analysis output curve analysis, proposed adding fuzzy speed Former feedforward control loop system