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    • 2. 发明公开
    • SENSORLESS CONTROL METHOD AND APPARATUS OF PERMANENT MAGNET SYNCHRONOUS MOTOR
    • SENSORLOSES STEURUNGSVERFAHREN UND PERMANENTERREGTE SYNCHRONMOTORVORRICHTUNG
    • EP0944164A1
    • 1999-09-22
    • EP97946095.3
    • 1997-12-04
    • KABUSHIKI KAISHA YASKAWA DENKI
    • OGURO, Ryuichi-Kabushiki Kaisha Yaskawa DenkiFUJII, Shuichi-Kabushiki Kaisha Yaskawa DenkiINAZUMI, Masanobu-Kabushiki Kaisha Yaskawa Denki
    • H02P5/408
    • H02P21/04H02P6/17H02P21/18H02P21/26H02P2207/05
    • The invention provides a sensorless control method and apparatus of a permanent magnet synchronous motor where magnetic axis can be assigned in all speed regions and speed can be controlled continuously irrespective of the speed command. In the control method, the d-q axis being the magnetic axis rotating in the real rotation speed ω R of the motor is set and also the γ-δ axis being the assigned magnetic axis of the motor is set, and when the rotation speed ω Rγ of the γ-δ axis is determined, a distribution gain K1 is set so as to be decreased as the absolute value of the rotation speed command ω RREF becomes large and a distribution gain K2 is set so as to be increased as the absolute value of the rotation speed command ω RREF becomes large, and the rotation speed command ω RREF is multiplied by K1 and the speed estimated value ω RP determined from the induced voltage of the synchronous motor or the induced voltage estimated value is multiplied by K2 respectively, and both multiplied values are summed thereby the rotation speed ω Rγ of the γ-δ axis being the assigned magnetic axis is determined.
    • 本发明提供了一种永磁同步电动机的无传感器控制方法和装置,其中可以在所有速度区域中分配磁轴,而不管速度指令如何,均可连续地控制速度。 在控制方法中,设定以电动机的实际旋转速度ωr为中心旋转的磁轴的dq轴,并设定作为电动机的分配磁轴的γ-δ轴,并且当旋转速度ωR 确定γ-δ轴的伽马,分配增益K1被设定为随着转速指令ωRREF的绝对值变大并且分配增益K2被设定为随着绝对值增加而减小 旋转速度指令ωRREF变大,旋转速度指令ωRREF乘以K1,将从同步电动机的感应电压或感应电压推定值求出的速度推定值ω,RP分别乘以K2, 两个相乘值相加,从而确定作为分配的磁轴的γ-δ轴的旋转速度ωγRγ。
    • 10. 发明公开
    • Cross tie for induction motor drive
    • Kreuzschaltung zur Steuerung eines异步电动机。
    • EP0296841A2
    • 1988-12-28
    • EP88305711.9
    • 1988-06-22
    • GENERAL ELECTRIC COMPANY
    • Delmerico, Robert WilliamEspelage, Paul Martin
    • H02M5/45H02P5/408
    • H02M5/4505
    • An induction motor drive having source and load side converters with individual control channels for the respective converters includes a cross tie arrangement between the channels for increased system stability. The cross tie circuit selectively effects a modification of the initial flux setpoint signal to provide a final flux setpoint signal which is employed in the ultimate control of the inverter. This modification is achieved through the use of a signal generated when the command signal for the source side converter exceeds a predetermiend value, normally a percentage of the maximum command permitted to the source side converter.
    • 具有用于各个转换器的具有各个控制通道的源极和负载侧转换器的感应电动机驱动器包括用于增加系统稳定性的通道之间的交叉连接装置。 交叉连接电路选择性地实现初始磁通设定点信号的修改,以提供用于逆变器的最终控制的最终磁通设定点信号。 这种修改是通过使用当源侧转换器的命令信号超过预定值时产生的信号来实现的,通常是源侧转换器允许的最大命令的百分比。