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    • 3. 发明申请
    • SENSORLESS CONTROL METHOD AND APPARATUS OF PERMANENT MAGNET SYNCHRONOUS MOTOR
    • 永磁同步电动机的无传感控制方法及装置
    • WO1998025335A1
    • 1998-06-11
    • PCT/JP1997004434
    • 1997-12-04
    • KABUSHIKI KAISHA YASKAWA DENKIOGURO, RyuichiFUJII, ShuichiINAZUMI, Masanobu
    • KABUSHIKI KAISHA YASKAWA DENKI
    • H02P05/408
    • H02P21/04H02P6/17H02P21/18H02P21/26H02P2207/05
    • A sensorless control method and apparatus of a permanent magnet synchronous motor which enables the designation of the magnetic axis over a whole rotational speed range and enables the rotational speed control continuously regardless of the rotational speed command. The control method is such that when a magnetic axis, d-q axis, which rotates at the true motor rotational speed omega R, a designated magnetic axis, gamma - delta axis of the motor are determined and the rotational speed, omega R gamma of the gamma - delta axis is found, a distribution gain K1 which is so set as to be reduced in accordance with the increase of the absolute value of the revolution command omega RREF and a distribution gain K2 which is so set as to be increased in accordance with the increase of the absolute value of the revolution command omega RREF are prepared, the revolution command omega RREF is multiplied by K1, the revolution transition value omega RP which is obtained from the induced voltage or estimated induced voltage of a synchronous motor is multiplied by K2, and the two products are added to each other to determine the rotational speed omega R gamma the designated magnetic axis, gamma - delta axis.
    • 一种永磁同步电动机的无传感器控制方法和装置,其能够在整个转速范围内指定磁轴,并且能够连续地进行转速控制,而与转速指令无关。 控制方法使得当以真正的电动机转速ωR旋转的磁轴dq轴被确定为指定的磁轴时,确定电动机的γ-δ轴,旋转速度ωγ - 发现三角轴,分配增益K1被设定为根据旋转指令ωRREF的绝对值的增加而减小,并且分配增益K2被设置为根据 旋转指令ωRREF的绝对值的增加,旋转指令ωRREF乘以K1,从感应电压或同步电机的推定感应电压获得的转数转换值ωRP乘以K2, 并且将这两个产品相互添加以确定指定的磁轴γ-δ轴的旋转速度ωRγ。