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    • 32. 发明申请
    • Synchronous Electric Motor Drive System
    • 同步电机驱动系统
    • US20130243625A1
    • 2013-09-19
    • US13816296
    • 2011-07-26
    • Yoshitaka IwajiShigehisa AoyagiKazuaki TobariRyoichi Takahata
    • Yoshitaka IwajiShigehisa AoyagiKazuaki TobariRyoichi Takahata
    • H02P21/04H02P6/14
    • H02P21/04H02P6/14H02P6/18H02P6/20H02P6/28H02P23/03H02P27/08
    • A synchronous electric motor drive system capable of driving at speeds near zero is provided. An energization mode determination unit switches six energization modes successively based on a terminal potential detected of the de-energized phase of a three-phase synchronous electric motor or on a stator winding wire connection point potential (neutral point potential) detected of the three-phase synchronous transmission unit. A voltage command correction unit corrects by a correction amount ΔV an applied voltage command destined for the synchronous electric motor to supply the synchronous electric motor with a repeated waveform of a positive pulse, negative pulse, and zero voltage as a line voltage waveform of the energized phases in each of the six energization modes, the positive pulse voltage being polarized to cause the synchronous electric motor to generate a forward rotation torque, the negative pulse voltage causing the synchronous electric motor to generate a reverse rotation torque.
    • 提供能够以接近零的速度行驶的同步电动机驱动系统。 通电模式确定单元基于检测到三相同步电动机的去电相位的终端电位或者检测到的三相同步电动机的定子绕组线连接点电位(中性点电位),连续地切换六个通电模式 同步传输单元。 电压指令校正单元通过校正量DeltaV来校正用于同步电动机的施加电压指令,以向正向脉冲,负脉冲和零电压的重复波形供给同步电动机作为通电的线电压波形 在六个通电模式中的每一个相位中,正脉冲电压被极化以使同步电动机产生正向转矩,负脉冲电压引起同步电动机产生反向转矩。
    • 36. 发明申请
    • CONTROL APPARATUS FOR PERMANENT MAGNET MOTOR
    • 永磁电机控制装置
    • US20110241586A1
    • 2011-10-06
    • US13029742
    • 2011-02-17
    • Kazuaki TOBARIRikio YoshikawaKatsuhiro Mochizuki
    • Kazuaki TOBARIRikio YoshikawaKatsuhiro Mochizuki
    • H02P6/10
    • H02P21/06H02P21/22
    • A sinusoidal signal is superimposed on a current command value of a q-axis (torque shaft) supplied from a host, and according to the resulting current command value, the output voltage of a power converter is controlled. For the calculation of the superimposed signal added to the current command value of the q-axis, with the use of the ripple component information of induced voltage coefficients of the d-axis and q-axis of the rotating coordinate system of a permanent magnet motor, the current command values of the d-axis and q-axis, an average value of induced voltage coefficients of the d-axis, and inductance values of the d-axis and q-axis, the sinusoidal superimposed signal is calculated and added to the above-described current command value of the q-axis.
    • 正弦信号叠加在从主机提供的q轴(转矩轴)的电流指令值上,根据所得到的电流指令值,控制功率转换器的输出电压。 为了计算添加到q轴的电流指令值的叠加信号,使用永磁电动机的旋转坐标系的d轴和q轴的感应电压系数的纹波分量信息 ,计算d轴和q轴的电流指令值,d轴的感应电压系数的平均值和d轴和q轴的电感值,正弦叠加信号被加到 上述q轴的电流指令值。