东南大学学报（英文版）2009，Vol.25Issue(2)：199-202,4.
无位置传感器无刷直流电机无反转起动方法
Anti-reverse rotation startup method for sensorless brushless DC motor
林明耀 1张智尧 1林克曼 1周谷庆1
作者信息
- 1. 东南大学电气工程学院,南京,210096
- 折叠
摘要
Abstract
In order to start up the brushless DC motor (BLDCM) without reverse rotation and smoothly switch the running state of the motor, a novel startup and smoothly switching method for a sensorless BLDCM is presented. Based on the saturation effect of the stator iron, six short voltage pulses are applied to determine the initial rotor position and the rotor can be found within 60°. After that, a series of short and long voltage pulses are used to accelerate the motor and the variation of the response current is utilized to detect the rotor position dynamically. When the motor reaches a certain speed at which the back-electromotive force (EMF) method can be applied, all the power devices are turned off and the running state of the motor is smoothly switched at the moment determined by the relationship between the terminal voltage waveform and- the commutation phases. The experimental results verify the feasibility and validity of the proposed method.关键词
无刷直流电机/无位置传感器控制/无反转起动/反电势法/切换Key words
brushless DC motor/sensorless control/anti-reverse rotation/back-electromotive force/switch分类
信息技术与安全科学引用本文复制引用
林明耀,张智尧,林克曼,周谷庆..无位置传感器无刷直流电机无反转起动方法[J].东南大学学报（英文版）,2009,25(2):199-202,4.
