基于S32K144的无刷直流电机控制系统  

Brushless DC Motor Control System Based on S32K144

作　　者：孙亚军 王宜怀[1] 王林[1] 彭涛 刘贤德 SUN Ya-jun;WANG Yi-huai;WANG Lin;PENG Tao;LIU Xian-de(School of Computer Science and Technology,SooChow University,Suzhou 215000,China)

机构地区：[1]苏州大学计算机科学与技术学院,江苏苏州215000

出　　处：《仪表技术与传感器》2020年第11期84-90,共7页Instrument Technique and Sensor

基　　金：国家自然科学基金项目(61672369);江苏省自然科学基金项目(17KJB520035)。

摘　　要：针对无刷直流电机对于控制系统的稳定性和动态性要求,设计了基于S32K144的高性能硬件电路和软件控制系统。硬件电路中添加光耦隔离电路以提高信号抗干扰能力;软件上使用mbedOS,实现速度电流双闭环控制结构,结合专家PID调节策略,提高系统的动态性能。实验证明,该控制系统控制精度达到0.5%以内。Aiming at the stability and dynamics of the control system for the brushless DC motor,a high⁃performance hard⁃ware circuit and software control system based on S32K144 was designed.An optocoupler isolation circuit was added in the hard⁃ware circuit to improve the signal anti⁃interference ability,the software used mbedOS to realize the speed and current double closed⁃loop control structure,and combined the expert PID adjustment strategy to improve the dynamic performance of the system.Experiments show that the control system has a control accuracy of less than 0.5%.

关 键 词：无刷直流电机 S32K144 光耦隔离电路 mbedOS 速度电流双闭环 专家PID 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置]