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    • 21. 发明授权
    • Method and apparatus for controlling synchronous motor
    • 用于控制同步电动机的方法和装置
    • US07026782B2
    • 2006-04-11
    • US11180563
    • 2005-07-14
    • Yasuaki AokiHideji YoshidaHiroshi Amano
    • Yasuaki AokiHideji YoshidaHiroshi Amano
    • H02P1/46
    • H02P21/18H02P2207/05
    • An apparatus is provided for controlling a synchronous motor. The apparatus comprises a first calculator calculating a voltage characteristic showing a characteristic of voltages to be applied to armature coils of a stator and a producer producing a command signal to provide the armature coils with the phase currents on the basis of the voltage characteristic. The apparatus still comprises a current detector detecting a signal depending on an amplitude of at least one of the phase currents, a second calculator calculating a rate of changes in a current amount indicating amplitudes of the phase currents, by using the signal from the current detector, and a feed-back member feed-backing the rate of changes in the current amount into the calculation of the voltage characteristic.
    • 提供一种用于控制同步电动机的装置。 该装置包括:第一计算器,计算表示施加到定子的电枢线圈的电压的特性的电压特性和产生指令信号的发生器,以基于电压特性为电枢线圈提供相电流。 该装置还包括检测根据至少一个相电流的振幅的信号的电流检测器,第二计算器通过使用来自电流检测器的信号计算指示相电流幅度的电流变化率 ,并且反馈构件将电流量的变化率馈送到电压特性的计算中。
    • 25. 发明授权
    • Reluctance-type motor having widened bottom
    • 磁阻电机底部加宽
    • US06441529B1
    • 2002-08-27
    • US09679530
    • 2000-10-06
    • Naohisa MimuraYoshiyuki TakabeShinji MakitaTomohiro SaitouHideji Yoshida
    • Naohisa MimuraYoshiyuki TakabeShinji MakitaTomohiro SaitouHideji Yoshida
    • H02K910
    • H02K1/246H02K19/103
    • A reluctance-type motor comprises, for each of its rotor and stator, a core that has a cylindrical ring and a plurality of salient poles protruding from the ring in a radial direction of the ring. Each pole has a bottom width and a top width in a circumferential direction of the core at its bottom and at its top, respectively. The bottom width is sized to be larger than the top width, and the ring has a width sized to be larger than a half of the top width of the pole. The pole may be shaped to have a round corner at the bottom or in a trapezoid in which the bottom width is larger than the top width. The core may have a plurality of thin magnetic plates stacked in an axial direction of the core, each plate has a plurality slits in each protrusion which forms the pole, and each plate has a thickness which is less than 5 times of a maximum width of each slit.
    • 磁阻式电动机对于其每个转子和定子都包括具有圆柱形环的芯和沿环的径向方向从环突出的多个凸极。 每个极在其底部和顶部分别具有芯部的圆周方向的底部宽度和顶部宽度。 底部宽度的尺寸应大于顶部宽度,并且环的宽度尺寸应大于极的顶部宽度的一半。 杆可以被成形为在底部具有圆角,或者形成底部宽度大于顶部宽度的梯形。 芯可以具有沿芯的轴向堆叠的多个薄磁性板,每个板在每个突起中具有形成极的多个狭缝,并且每个板的厚度小于最大宽度的5倍 每个缝。
    • 28. 发明授权
    • Apparatus for calculating rotational position of rotary machine
    • 用于计算旋转机器旋转位置的装置
    • US08829829B2
    • 2014-09-09
    • US13372638
    • 2012-02-14
    • Hiroko YoneshimaYasuaki AokiHideji Yoshida
    • Hiroko YoneshimaYasuaki AokiHideji Yoshida
    • H02P21/00H02P6/18H02P21/14H02P27/08H02M1/38
    • H02P6/185H02M2001/385H02P21/18H02P27/08H02P2203/03H02P2203/11
    • In a system, a superimposing element sets a command value vector of a high-frequency voltage signal and superimposes the high-frequency voltage signal with the command value vector on an output voltage of an inverter. The high-frequency voltage signal has a frequency higher than an electrical angular frequency of a rotary machine. The command value vector is correlated with a measured high-frequency component value of a current signal flowing in the rotary machine. A calculating element calculates a rotational angle of the rotary machine based on the measured high-frequency component value of the current signal flowing in the rotary machine. A reducing element controls at least one of the inverter and a direct voltage power supply to reduce a difference due to the dead time between the command value vector and a vector of a high-frequency voltage signal to be actually superimposed on the output voltage of the inverter.
    • 在系统中,叠加元件设定高频电压信号的指令值向量,并将高频电压信号与指令值矢量叠加在逆变器的输出电压上。 高频电压信号的频率高于旋转机器的电角频率。 指令值向量与在旋转机器中流动的电流信号的测量高频分量值相关。 计算元件基于测量的在旋转机器中流动的电流信号的高频分量值来计算旋转机器的旋转角度。 还原元件控制逆变器和直流电源中的至少一个,以减少由于命令值向量与要实际叠加的高频电压信号的矢量之间的死区时间而产生的差异 逆变器。
    • 29. 发明申请
    • APPARATUS FOR CALCULATING ROTATIONAL POSITION OF ROTARY MACHINE
    • 计算旋转机的旋转位置的装置
    • US20120206077A1
    • 2012-08-16
    • US13372638
    • 2012-02-14
    • Hiroko YONESHIMAYasuaki AokiHideji Yoshida
    • Hiroko YONESHIMAYasuaki AokiHideji Yoshida
    • H02P6/18
    • H02P6/185H02M2001/385H02P21/18H02P27/08H02P2203/03H02P2203/11
    • In a system, a superimposing element sets a command value vector of a high-frequency voltage signal and superimposes the high-frequency voltage signal with the command value vector on an output voltage of an inverter. The high-frequency voltage signal has a frequency higher than an electrical angular frequency of a rotary machine. The command value vector is correlated with a measured high-frequency component value of a current signal flowing in the rotary machine. A calculating element calculates a rotational angle of the rotary machine based on the measured high-frequency component value of the current signal flowing in the rotary machine. A reducing element controls at least one of the inverter and a direct voltage power supply to reduce a difference due to the dead time between the command value vector and a vector of a high-frequency voltage signal to be actually superimposed on the output voltage of the inverter.
    • 在系统中,叠加元件设定高频电压信号的指令值向量,并将高频电压信号与指令值矢量叠加在逆变器的输出电压上。 高频电压信号的频率高于旋转机器的电角频率。 指令值向量与在旋转机器中流动的电流信号的测量高频分量值相关。 计算元件基于测量的在旋转机器中流动的电流信号的高频分量值来计算旋转机器的旋转角度。 还原元件控制逆变器和直流电源中的至少一个,以减少由于命令值向量与要实际叠加的高频电压信号的矢量之间的死区时间而产生的差异 逆变器。
    • 30. 发明授权
    • Control system for multiphase rotary machines
    • 多相旋转机械控制系统
    • US08106622B2
    • 2012-01-31
    • US12078804
    • 2008-04-04
    • Yasuaki AokiHideji Yoshida
    • Yasuaki AokiHideji Yoshida
    • H02P27/00
    • H02M7/53873H02P23/0004
    • A control system aims at converting, via a switching circuit, a direct current voltage into an alternating current voltage to be applied to multiphase windings of a multiphase rotary machine to thereby control rotation of the multiphase rotary machine. In the control system, a command voltage determiner determines a command voltage value for an alternating current voltage to be applied to the multiphase windings based on a zero crossing of a line-to-line current and a zero crossing of the amount of change in the line-to-line current. A driving unit drives the switching circuit on and off based on the determined command voltage value to thereby modulate the direct current voltage to the alternating current voltage to be applied to the multiphase windings.
    • 控制系统旨在通过开关电路将直流电压转换成施加到多相旋转机器的多相绕组的交流电压,从而控制多相旋转机器的旋转。 在控制系统中,指令电压确定器基于线对线电流的零交叉和变化量的零交叉来确定要施加到多相绕组的交流电压的指令电压值 线间电流。 驱动单元基于确定的指令电压值来驱动开关电路,从而将直流电压调制为施加到多相绕组的交流电压。