摘要
针对霍尔传感器出现故障导致电机转速不稳定的问题,依据霍尔传感器控制原理,设计了无刷直流电动机容错控制系统,并提出了基于等时计数法的故障检测机制与基于无位置传感器系统的容错控制方法。通过仿真与测试平台实验验证,基于可编程门阵列(FPGA)的容错控制系统能够显著降低霍尔传感器故障对电机转速的影响,电机能够在霍尔传感器故障时能够正常稳定运行。
Aiming at the problem that the motor speed is unstable due to the failure of the Hall sensor,the fault-tolerant control system of the brushless DC motor was designed according to the control principle of the Hall sensor.The fault detection mechanism based on the isochronous counting method and the fault-tolerant control based on the position sensorless system were proposed.Through simulation and test platform experiments,the fault-tolerant control system based on field programmable gate array(FPGA)can significantly reduce the impact of Hall sensor fault on motor speed,so that the motor can can run stably when the Hall sensor fails.
作者
温嘉斌
赵红阳
刘子宁
WEN Jia-bin;ZHAO Hong-yang;LIU Zi-ning(School of Electrical Engineering,Harbin University of Science and Technology,Harbin 150080,China)
出处
《微特电机》
2020年第6期56-60,共5页
Small & Special Electrical Machines
关键词
霍尔传感器
故障检测
无刷直流电动机
可编程门阵列
容错
Hall sensor
fault detection
brushless DC motor
field programmable gate array(FPGA)
fault-tolerant
