摘要
详细介绍了自行开发的磁悬浮轨道交通演示模型,该模型以永磁技术为支撑,直线无刷直流电动机提供动力,自控式逆变器保证直线无刷直流电动机输入电流的频率与电动机运行速度始终保持同步,并用MC33033开环控制电路实现对直线无刷直流电机的控制.该模型运行效果较好,起到了较好的教学演示作用.
A self-made maglev transportation demonstration model is introduced in detail. Basing on permanent magnetic technology, the model uses linear brushless DC motor to supply drive power, uses self-control inverter to ensure the synchronization of the frequency of the linear brushless DC motor＇s input electric current with the rotational velocity of the motor, and uses open loop control circuit to control linear brushless DC motor. The model works very well for demonstration.
出处
《物理实验》
2007年第11期21-25,共5页
Physics Experimentation
