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    • 9. 发明授权
    • Driving device of motor
    • 电机驱动装置
    • US07375482B2
    • 2008-05-20
    • US11523002
    • 2006-09-19
    • Mamoru KuboKenji NojimaKazuhisa OtagakiYoshio TomigashiKeiji Kishimoto
    • Mamoru KuboKenji NojimaKazuhisa OtagakiYoshio TomigashiKeiji Kishimoto
    • H02P21/00H02P6/20
    • H02P21/34H02P6/21
    • An object is to provide a driving device capable of smoothly shifting from a starting state to a sensor-less vector control, in a case where the device drives a motor by the sensor-less vector control, and the device includes a voltage detecting circuit which detects an induced electromotive voltage of the motor. A control circuit starts the motor by rectangular wave control. A magnetic pole position of a rotor is detected based on an induced electromotive voltage of one remaining phase of the motor detected by the voltage detecting circuit. The control circuit controls a main inverter circuit based on the detected magnetic pole position, and accelerates the motor by the rectangular wave control. In a case where a predetermined shift revolution speed is reached, the control circuit shifts to vector control by the sensor-less in which the magnetic pole position detected during the rectangular wave control is used as an initial value.
    • 本发明的目的是提供一种驱动装置,其能够在通过无传感器矢量控制来驱动电动机的情况下,能够从启动状态平滑地变换为无传感器矢量控制,并且该装置包括:电压检测电路, 检测电动机的感应电动势。 控制电路通过矩形波控制启动电机。 基于由电压检测电路检测到的电机的一个剩余相的感应电动势来检测转子的磁极位置。 控制电路基于检测到的磁极位置控制主逆变器电路,并通过矩形波控制来加速电动机。 在达到预定的换档转速的情况下,控制电路通过使用在矩形波控制期间检测到的磁极位置作为初始值的无传感器转换到矢量控制。