摘要
无刷直流电动机以其优异的调速性能及力矩和制动的可控性,在电动执行器中得到了广泛的应用。为了防止工程应用中执行器常因电机堵转而损坏控制器和电机,与普通执行器只能在硬件上被动检测力矩是否超限不同,文章采用霍尔电流传感器实时检测相电流,经电流滞环控制,主动限制输出力矩大小,实现在不同负载下的力矩保护。建立了无刷直流电动机控制模型,仿真验证了方案的可行性,同时基于STM32设计了无刷直流电动机驱动控制器,通过实验验证了力矩保护控制性能。
Brushless DC motors are widely used in electric actuators for excellent speed control performance and controllability of torque and braking.Common actuators detect passively torque overrun on hardware to prevent the damage of controller and motor caused by rotor blocking.The method using Hall current sensors to detect phase current in real-time was adopted to limit actively the output torque with current hysteresis control and achieved torque protection in different loads.The control model of brushless DC motor was established and the drive controller was made based on STM32.Both simulation and experimental results verify the feasibility of the method.
出处
《微特电机》
北大核心
2014年第8期80-82,共3页
Small & Special Electrical Machines
基金
中央高校基本科研业务费专项资金创新项目(SWJ-TU11CX024)
