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    • 58. 发明授权
    • Motor control device
    • 电机控制装置
    • US08395339B2
    • 2013-03-12
    • US13018897
    • 2011-02-01
    • Koichi KatoKeisuke NishimuraZhiqian ChenSubrata Saha
    • Koichi KatoKeisuke NishimuraZhiqian ChenSubrata Saha
    • H02P6/18
    • H02P6/183H02P21/26
    • A motor control device that has a high-frequency component, and a DC bias component that has a magnitude which causes a motor to be magnetically saturated and take on a certain value over a predetermined period, and is positively and negatively symmetrical are impressed as an observation command on a d-axis current command. The polarity of the magnetic pole of a permanent magnet is identified based on a relationship of large and small magnitudes between a first amplitude, which is attained during a period during which a DC bias component takes on a positive certain value, among amplitudes of a high-frequency component contained in a d-axis response voltage computed based on a feedback current respondent to the observation command, and a second amplitude attained during a period during which the DC bias component takes on a negative certain value.
    • 具有高频分量的电动机控制装置和具有使电动机在一定时间内达到一定值并且呈正负对称的电动机饱和并达到一定值的大小的直流偏压分量作为 观察指令在d轴电流指令。 基于在DC偏置分量取正值之间达到的第一幅度之间的大和小幅度之间的关系来识别永磁体的磁极的极性 - 包括在基于对观察命令的响应的反馈电流计算的d轴响应电压中的频率分量,以及在DC偏置分量承受负特定值的时段期间获得的第二幅度。