摘要
针对传统直流电动机采用机械换相、调速性能差、启动转矩小、抗干扰性差等关键技术问题,研究设计了一种采用PID双闭环控制的无刷直流电动机控制系统。首先,分析了无刷直流电动机的工作原理和数学模型;然后,基于Matlab/Simulink搭建了无刷直流电动机控制系统仿真模型,采用电流-转速双闭环PI调速方式,提高系统的调速性能;最后,以TMS320F28335芯片为控制核心,外搭驱动电路模块、通信电路模块、检测电路模块、保护电路模块等完成了系统的硬件设计,软件设计是在CCS5.2平台上进行开发。为了实时观测电动机的运行参数,基于Labwindow设计了上位机界面。对所设计的无刷直流电动机控制系统在实际环境下进行测试,输出显示的结果不仅满足启动迅速稳定,动态性能好,调速性能优良的设计要求,而且硬件系统运行稳定,控制效果好,验证了本文算法的正确性。
Aiming at the key technical problems of traditional DC motors such as mechanical commutation, poor speed regulation performance,small starting torque, and poor anti-interference, a brushless DC motor control system using PID double closed-loop control was studied and designed. The working principle and mathematical model of the brushed DC motor were analysed, the simulation model of the brushless DC motor control system was built based on Matlab/Simulink, and the current-speed double closed-loop PI speed regulation method was used to improve the speed regulation performance of the system;finally, the TMS320F28335 chip was used. In order to control the core, the external drive circuit module, communication circuit module, detection circuit module, protection circuit module, etc. had completed the hardware design of the system, and the software design was developed on the CCS5.2 platform. In order to observe the operating parameters of the motor in real time, based on Labwindow had designed the host computer interface. The designed brushless DC motor control system was tested in the actual environment, and the output display results not only met the design requirements of rapid and stable startup, good dynamic performance,and excellent speed regulation performance, but also the hardware system ran stable and had good control effect, which verified the correctness of the algorithm.
作者
陈剑锋
罗伟林
Chen Jianfeng;Luo Weilin(Quanzhou University of Information Engineering,Quanzhou,Fujian 362008,China;College of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350108,China)
出处
《机电工程技术》
2022年第8期96-101,共6页
Mechanical & Electrical Engineering Technology
基金
福建省中青年教师教育科研项目(科技类)(编号:JAT210549)。
