基于STM32的无刷直流电机控制器硬件电路设计及实验研究

摘要

The hardware circuit of Brushless DC motor controller is designed by taking STM32F103C8T6 as the core,which mainly includes PWM driving circuits made up of IR2310,inverter circuit formed by IRF3808,speed feedback circuit composed of incremental rotary encoder and so on. Speed servo control system or position servo control system can be composed of BLDM controller with computer or PLC through CAN communication interface or RS232 serial communication interface.By using the hardware in the loop simulation platform built by xPC target,the PI parameters are set up. The Speed servo response performance of the controller is tested. When the speed is 2 400 rpm,the response time of the controller is 0.32 s. The experimental results show that the system has the advantages of high reliability,high stability and fast response speed,which can meet the speed contrd performance requirements of upper limb rehabilitation robot's mechanical arm.%以STM32F103C8T6为核心,设计了无刷直流电机控制器硬件电路.电路主要包括IR2310构成的PWM驱动电路、IRF3808构成的逆变电路、增量式旋转编码构成的速度反馈电路.控制器具有CAN和RS232通信接口,可与计算机或PLC构成速度或位置伺服系统.利用由xPC目标搭建的半实物仿真平台对PI参数进行整定.测试了控制器的速度伺服响应性能,给定速度为2400 rpm时,控制器响应时间为0.32 s.实验结果表明,系统工作可靠,稳定性好,响应速度快,可以满足上肢康复机器人的机械臂速度控制性能要求.