| 基于MC9S12XS128的直流电机PWM闭环控制系统设计 |
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| 引用本文： | 韩团军.基于MC9S12XS128的直流电机PWM闭环控制系统设计[J].机床与液压,2016,44(7):109-111. |
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| 作者姓名： | 韩团军 |
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| 作者单位： | 陕西理工学院物理与电信工程学院,陕西汉中,723000 |
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| 基金项目： | 陕西省教育厅基金资助项目(2013JK0852)，陕西理工学院2014年科研基金资助项目(SLGKY14-06) |
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| 摘 要： | 设计一种基于MC9S12XS128的直流电机PWM闭环控制系统,采用BTS7970直流电机驱动器,对电机利用PWM脉宽调制进行控制,并通过光电编码器测速,以及增量式PID闭环反馈控制系统来达到对直流电机的转速测量和精确控制。同时设有按键和液晶来对直流电机的转速调控和显示,提供了良好的人机交互操控。经过系统设计和硬件测试,结果表明:该系统达到了电机较小误差的速度控制及转速显示。
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| 关 键 词： | 直流电机 PWM 光电码器 PID |
Design of DC Motor PWM Closed loop Control System Based on MC9S12XS128 |
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| Abstract: | A DC motor PWM closed-loop control system based on MC9S12XS128 was designed using BTS7970 DC motor drive, motor was controlled using the PWM pulse width modulation, and speed was tested through the photoelectric encoder, and speed meas-urement and precision control of a DC motor were achieved by incremental PID closed-loop feedback control system.DC motor speed was controlled and displayed with buttons and LCD, which provided a good human-computer interaction.Through the design and hard-ware test, the result shows that this system can realize the speed of the motor smaller error control and rotational speed. |
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| Keywords: | DC motor PWM Light code PID |
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