无刷直流电机控制电路的Multisim设计实训

Design of brushless DC motor control circuit based on Multisim

应用型教学必然倾向于实训。为寻求一种便捷有效的实训途径,提出无刷直流电机控制的Multisim仿真。通过解析转子位置检测技术,提出控制系统设计思路。利用Multisim资源,首先对电子换向触发信号单元电路进行设计与测试,然后搭建控制系统逻辑电路。经系统仿真可实现电机的正反转及调速,可对输出波形进行初步分析,实训效果很好。

Applied teaching inevitably tends to practice.In order to find a convenient and effective training way,Multisim simulation of brushless DC motor control was proposed.By analyzing the rotor position detection technology,the design idea of control system was put forward.By using Multisim resources,the electronic commutation trigger signal unit circuit was designed and tested,and then the control system logic circuit was built.The system simulation can realize the positive and negative rotation and speed regulation of the motor,and the output waveform can be preliminarily analyzed.The training effect is very good.