公开(公告)号：US20060132071A1

公开(公告)日：2006-06-22

申请号：US11227108

申请日：2005-09-16

申请人： Kwang Oh ,  Koji Hamaoka ,  Han Yoo ,  Pyeong Park ,  Hun Bae ,  Yun Kim ,  Jeong Seo

发明人： Kwang Oh ,  Koji Hamaoka ,  Han Yoo ,  Pyeong Park ,  Hun Bae ,  Yun Kim ,  Jeong Seo

IPC分类号： H02P1/18 ,  H02P7/06

CPC分类号： H02P6/21

摘要： A Brushless Direct Current (BLDC) motor starting method and device are provided, in which startup noise and vibration and startup failure rate can be reduced using a constant low-speed startup scheme when the BLDC motor is in sensorless startup mode, and PWM duty is also maintained at low level when the BLDC motor starts up, thereby preventing an excessive current from occurring due to desynchronization of the motor at startup, so that it is possible to optimize specifications of an inverter in the BLDC motor. The BLDC motor starts up with a startup speed and a PWM duty of a rotor of the BLDC motor being kept constant, and the BLDC motor switches to sensorless mode if a position of the rotor is detected a predetermined number of times or more during a specific time.

摘要翻译： 提供无刷直流（BLDC）电动机起动方法和装置，当BLDC电机处于无传感器启动模式时，可以通过恒定的低速启动方案降低启动噪声和振动和启动故障率，PWM占空比 当BLDC电动机起动时也保持在低电平，从而防止由于启动时电动机的不同步而导致过大的电流，从而可以优化BLDC电动机中的逆变器的规格。 BLDC电动机以启动速度启动，并且BLDC电动机的转子的PWM占空比保持恒定，并且如果在特定的时间段内检测到转子的位置预定次数或更多次，则BLDC电动机切换到无传感器模式 时间。