摘要
以飞思卡尔S12单片机为控制核心,构建新型稀土永磁无刷直流电机控制系统,提出了系统的硬件构成及软件设计方案。系统省去了电机专用控制芯片,结构简单,对无刷直流电机控制效率高;采用光耦器件,保证了信号的传输稳定与正确。电机的速度控制采用了增量式PID算法,并采用电流、速度双闭环控制,使电机的运行更加平稳。实验证明,该控制方案应用于大型彩色喷印机的字车伺服控制系统后,提高了无刷直流电机的启动与制动响应速度,增强了喷印过程中电机的恒速及平稳性,且鲁棒性好。
Choosing S12 single chip microcomputer as the core to realize a new kind of rare earth brushless DC motor system,the hardware and software design are offered.The system is simplified and control efficiency is enhanced without special control chip.Application of optical coupler ensured the correctly transmitted the signal.Incremental PID algorithm is used in the motor speed-control,the electric current and velocity double closed-loop control is also used to enhance the motor's stability.The experiment result indicates that the control system can not only accelerate the start and brake response speed of the motor,but also improves the speed stability during the motor work,and the robust ability of the system is good.
出处
《机电工程技术》
2009年第8期35-37,49,共4页
Mechanical & Electrical Engineering Technology
基金
重庆市科技攻关计划项目(编号:CSTC2008AC3026)
关键词
无刷直流电动机
PID算法
速度控制
光耦器件
S12单片机
brushless DC motor
PID algorithm
velocity control
optical coupler
S12 single chip microcomputer
