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1. 发明授权

US09325264B2 Electric motor drive device 有权
标题翻译：电动机驱动装置
公开(公告)号：US09325264B2
公开(公告)日：2016-04-26
申请号：US14391578
申请日：2012-04-12
申请人： Yoshitaka Iwaji , Ryoichi Takahata , Takahiro Suzuki
发明人： Yoshitaka Iwaji , Ryoichi Takahata , Takahiro Suzuki
IPC分类号： H02P6/18 , H02P21/14
CPC分类号： H02P6/187 , H02P21/18
摘要： An electric motor drive device 1000 includes: an inverter 3 that drives a motor 4, a voltage division circuit 2 that serves as a neutral point potential detection unit that detects a neutral point potential of a stator winding of the motor 4; and a controller 1 that estimates a rotor position of the motor 4 based on the detected neutral point potential, and that controls the inverter 3 based on an estimation result. A ground potential of the controller 1 is set to a negative side potential or a positive side potential of a DC voltage that is supplied to the inverter 3. The voltage division circuit 2 detects the neutral point potential with reference to the negative side potential or the positive side potential. The controller 1 estimates the rotor position based on a difference between a first neutral point potential detected during the ON/OFF operation of the inverter 3 and a first fixed reference potential (⅔)Emax, and based on a difference between a second neutral point potential detected during the ON/OFF operation and a second fixed reference potential (⅓)Emax.
摘要翻译：电动机驱动装置1000包括：驱动电动机4的逆变器3，用作检测电动机4的定子绕组的中性点电位的中性点电位检测单元的分压电路2; 以及控制器1，其基于检测到的中性点电位来估计电动机4的转子位置，并且基于估计结果来控制逆变器3。控制器1的接地电位被设置为提供给逆变器3的直流电压的负侧电位或正侧电位。分压电路2参考负侧电位或正面潜力控制器1基于在逆变器3的接通/断开操作期间检测到的第一中性点电位与第一固定参考电位（⅔）Emax之间的差异，并且基于第二中性点电位在ON / OFF操作期间检测到第二固定参考电位（1/3）Emax。

2. 发明授权

US09000626B2 Thrust generation mechanism, drive device, XY stage and XYZ stage 有权
标题翻译：推力发电机构，驱动装置，XY台架和XYZ平台
公开(公告)号：US09000626B2
公开(公告)日：2015-04-07
申请号：US13133966
申请日：2009-12-10
申请人： Yasuaki Aoyama , Yoshitaka Iwaji
发明人： Yasuaki Aoyama , Yoshitaka Iwaji
IPC分类号： H02K41/03 , H02P23/00 , H02P25/06
CPC分类号： H02K41/03 , H02P23/18 , H02P25/06
摘要： A thrust generation mechanism includes magnetic pole teeth which are arranged so as to sandwich and hold permanent magnets disposed on movers, cores which serially connect the magnetic pole teeth which sandwich and hold the magnets, armature winding wires which are collectively wound around the cores, and the movers having the magnets arranged such that the different magnetic poles thereof alternately face the front side and the rear side. The magnetic pole teeth which are arranged so as to sandwich and hold the permanent magnets and the armature iron cores which have cores serially connecting the magnetic pole teeth which hold the magnets are arranged in the longitudinal direction of the movers, and armature iron cores have a common winding wire. A stage is provided with a small-sized lightweight drive device which comprises magnetic pole teeth which are arranged on both sides of each permanent magnet with gaps therebetween, cores which connect the magnetic pole teeth, armatures which have armature winding wires wound around the magnetic pole teeth, and a row of the permanent magnets which is arranged such that the different magnetic poles are arranged alternately. The small-sized lightweight drive device is configured so that the number of the magnetic poles of the armatures is changed according to a thrust pattern required by the drive device.
摘要翻译：推力产生机构包括：磁极齿，其被设置成夹持并保持设置在移动体上的永磁体;串联连接夹持和保持磁体的磁极齿的芯;集中缠绕在芯上的电枢绕组线;以及具有磁铁的移动器被布置成使得不同的磁极交替地面对前侧和后侧。排列成夹持并保持永久磁铁的磁极齿和具有串联连接保持磁体的磁极齿的铁芯的电枢铁芯沿移动体的纵向方向布置，并且电枢铁芯具有普通绕组线。一个台架设有一个小型的重量轻的驱动装置，它包括磁极齿，磁极齿布置在每个永磁体的两侧，两个永磁体之间有间隙，连接磁极齿的铁心，电枢绕组绕在磁极上的电枢齿和一排永久磁铁排列成使得不同的磁极交替布置。小型轻型驱动装置被构造成使得根据驱动装置所需的推力图案来改变电枢的磁极数量。

3. 发明申请

US20150069941A1 Three-Phase Synchronous Motor Drive Device 审中-公开
标题翻译：三相同步电机驱动装置
公开(公告)号：US20150069941A1
公开(公告)日：2015-03-12
申请号：US14391625
申请日：2012-04-12
申请人： Yoshitaka Iwaji , Ryoichi Takahata , Takahiro Suzuki
发明人： Yoshitaka Iwaji , Ryoichi Takahata , Takahiro Suzuki
IPC分类号： H02P6/18
CPC分类号： H02P6/182 , H02P6/18 , H02P6/183 , H02P6/187
摘要： A three-phase synchronous motor drive device includes: a three-phase inverter 3 that drives a motor 4 that is as a three-phase synchronous motor, and that includes switching elements for three phases; a controller 2 that functions as a control unit that selects four switched states from a plurality of switched states that represent on/off states of the switching elements for the three phases, and that sequentially controls the three-phase inverter in the four switched states; a neutral point potential amplifier 13 that functions as a neutral point potential detection unit that detects a neutral point potential Vn0 of stator windings (Lu, Lv, Lw) of the motor 4 in each of the four switched states. It is configured that a rotor position of the three-phase synchronous motor is estimated over a full range of an electrical angle cycle based on at least three of four neutral point potentials detected in the four switched states.
摘要翻译：三相同步电动机驱动装置包括：三相逆变器3，其驱动作为三相同步电动机的电动机4，其包括三相的开关元件; 控制器2用作控制单元，其从表示三相开关元件的开/关状态的多个开关状态中选择四个开关状态，并且以四个开关状态顺序地控制三相逆变器; 用作中性点电位检测单元的中性点电位放大器13，其检测四个切换状态中的每一个中的电机4的定子绕组（Lu，Lv，Lw）的中性点电位Vn0。其被配置为基于四个切换状态中检测到的四个中性点电位中的至少三个，在电角度周期的全范围内估计三相同步电动机的转子位置。

4. 发明授权

US08810082B2 Linear motor 有权
标题翻译：直线电机
公开(公告)号：US08810082B2
公开(公告)日：2014-08-19
申请号：US13201466
申请日：2009-03-13
申请人： Yasuaki Aoyama , Yoshitaka Iwaji
发明人： Yasuaki Aoyama , Yoshitaka Iwaji
IPC分类号： H02K41/00
CPC分类号： H02K41/03
摘要： The invention relates to a small size and lightweight linear motor having small thrust ripples, in which the magnetic attraction working between an armature and a mover is canceled out and therefore is small. A thrust generation mechanism includes a stator (3) and a mover (5). The mover (5) includes permanent magnets (4) installed in a row so that the magnetic poles at the front and backsides of the magnets are alternately reversed along the traveling direction. The stator (3) includes upper and lower pole teeth (6), (7) having a plurality of magnetic poles (2) and arranged so as to sandwich the permanent magnets (4) of the mover (5), cores for connecting the pole teeth, and a winding (1) wound around a set of a plurality of the cores. Thrust ripples are reduced by adjusting the magnetic pole pitch (Pc) of the magnetic poles (2).
摘要翻译：本发明涉及一种具有小的推力波纹的小尺寸轻型直线电机，其中在电枢和移动器之间工作的磁吸引力被抵消，因此小。推力产生机构包括定子（3）和动子（5）。动子（5）包括安装在一排中的永磁体（4），使得磁体前后的磁极沿行进方向交替地反向。定子（3）包括具有多个磁极（2）的上极和下极齿（6），（7）并且被布置成夹住动子（5）的永磁体（4），用于将以及缠绕在一组多个芯上的绕组（1）。通过调节磁极（2）的磁极间距（Pc）来减小推力波纹。

5. 发明授权

US08766575B2 Synchronous electric motor drive system 有权
标题翻译：同步电动机驱动系统
公开(公告)号：US08766575B2
公开(公告)日：2014-07-01
申请号：US13816296
申请日：2011-07-26
申请人： Yoshitaka Iwaji , Shigehisa Aoyagi , Kazuaki Tobari , Ryoichi Takahata
发明人： Yoshitaka Iwaji , Shigehisa Aoyagi , Kazuaki Tobari , Ryoichi Takahata
IPC分类号： H02P6/18
CPC分类号： H02P21/04 , H02P6/14 , H02P6/18 , H02P6/20 , H02P6/28 , H02P23/03 , H02P27/08
摘要： 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.
摘要翻译：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Dgr校正; V是用于同步电动机的施加电压指令，向同步电动机提供正脉冲，负脉冲和零电压的重复波形作为线电压波形在六个通电模式中的每一个中的通电相位，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。

6. 发明申请

US20130093264A1 Linear Motor and Positioning Apparatus 审中-公开
标题翻译：直线电机和定位装置
公开(公告)号：US20130093264A1
公开(公告)日：2013-04-18
申请号：US13702257
申请日：2010-06-09
申请人： Yasuaki Aoyama , Yoshitaka Iwaji , Kohji Maki
发明人： Yasuaki Aoyama , Yoshitaka Iwaji , Kohji Maki
IPC分类号： H02K41/03 , H02K1/06
CPC分类号： H02K41/031 , H02K1/06 , H02K1/278 , H02K16/00 , H02K41/02 , H02K2213/12
摘要： The present invention provides a linear motor where a load onto a supporting mechanism and the ripple of force are lessened and the ripple can be adjusted. As a leakage flux between the magnetic poles can be reduced by being configured by plural magnetic poles arranged with a magnet arranged on a mover held between them, a core that continuously connects the magnetic poles that holds the magnet of the mover between them, windings are integrally wound onto the plural magnetic poles and the mover formed by a row of magnets the magnetic poles of which are alternately arranged or a row of magnets the polarity of which is alternately arranged and magnetic materials, by arranging the plural magnetic poles arranged with the magnet held between and the plural magnetic poles provided with the core that continuously connects the magnetic poles.
摘要翻译：本发明提供了一种线性电动机，其中支撑机构上的负载和力的波动被减小并且可以调节纹波。由于磁极之间的漏磁通可以通过由配置在保持在它们之间的动子上的磁体构成的多个磁极构成，使得将它们之间保持动子的磁体的磁极连续地连接在一起的磁芯绕组一体地缠绕在多个磁极上，并且由一排磁体形成的动子，其磁极交替排列，或者一列极性交替排列的磁体和磁性材料，通过配置配置有磁体的多个磁极保持在与设置有连续地连接磁极的芯体的多个磁极之间。

7. 发明授权

US08410735B2 Torque ripple suppression control device for permanent magnet motor and electric power steering system 有权
标题翻译：用于永磁电动机和电动助力转向系统的扭矩波纹抑制控制装置
公开(公告)号：US08410735B2
公开(公告)日：2013-04-02
申请号：US13009007
申请日：2011-01-19
申请人： Kazuaki Tobari , Yoshitaka Iwaji , Junnosuke Nakatsugawa , Rikio Yoshikawa , Masamichi Yagai
发明人： Kazuaki Tobari , Yoshitaka Iwaji , Junnosuke Nakatsugawa , Rikio Yoshikawa , Masamichi Yagai
IPC分类号： H02P21/00
CPC分类号： H02P21/05
摘要： A torque ripple suppression control device for a permanent magnet motor includes a current command conversion unit that outputs a current command value, a position detector that detects a rotational position of the permanent magnet motor, a current detection unit that detects a current at the permanent magnet motor, an induced voltage coefficient setting unit that outputs an information signal related to an induced voltage coefficient for an induced voltage at the permanent magnet motor, a torque ripple suppression operation unit that outputs a current correction command value for the permanent magnet motor, a current control operation unit that outputs a voltage command value based upon addition results obtained by adding together the current command value and the current correction command value and the current detection value, and a power converter that outputs a voltage with which the permanent magnet motor is to be driven.
摘要翻译：用于永磁电动机的转矩脉动抑制控制装置包括输出电流指令值的电流指令转换单元，检测永磁电动机的转动位置的位置检测器，检测永久磁铁电流的电流检测单元电动机，感应电压系数设定单元，输出与永磁电动机的感应电压的感应电压系数有关的信息信号;输出永磁电动机的电流校正指令值的转矩脉动抑制运算部，控制操作单元，其基于通过将当前指令值和当前校正指令值与当前检测值相加而获得的加法结果输出电压指令值，以及输出永磁电动机的电压的功率转换器驱动。

8. 发明申请

US20110204831A1 DRIVE DEVICE FOR ALTERNATING CURRENT MOTOR AND ELECTRIC MOTOR VEHICLE 有权
标题翻译：用于替代电流马达和电动马达的驱动装置
公开(公告)号：US20110204831A1
公开(公告)日：2011-08-25
申请号：US13030168
申请日：2011-02-18
申请人： Yoshitaka Iwaji , Daigo Kaneko , Kouki Yamamoto
发明人： Yoshitaka Iwaji , Daigo Kaneko , Kouki Yamamoto
IPC分类号： H02P25/00
CPC分类号： H02P21/04 , B60L15/025 , B60L15/08 , B60L2200/26 , B60L2210/20 , H02P6/182 , H02P21/141 , H02P21/18 , Y02T10/643 , Y02T10/725
摘要： Provided is a drive device for an alternating current motor which performs vector control on sensorless driving of the alternating current motor in an extremely low speed region without applying a harmonic voltage intentionally while maintaining an ideal PWM waveform. A current and a current change rate of the alternating current motor are detected, and a magnetic flux position inside of the alternating current motor is estimated and calculated in consideration of an output voltage of an inverter which causes this current change. The current change rate is generated on the basis of a pulse waveform of the inverter, and hence the magnetic flux position inside of the alternating current motor can be estimated and calculated without applying a harmonic wave intentionally.
摘要翻译：提供一种用于交流电动机的驱动装置，其在极低速区域内对无刷电机驱动交流电动机进行矢量控制，而不用有意地施加谐波电压同时保持理想的PWM波形。检测交流电动机的电流和电流变化率，考虑到导致该电流变化的逆变器的输出电压，来估计和计算交流电动机内部的磁通位置。基于逆变器的脉冲波形产生电流变化率，因此可以有意地使用谐波来估计和计算交流电动机内部的磁通位置。

9. 发明申请

US20110074324A1 Control Device for Synchronous Motor 失效
标题翻译：同步电机控制装置
公开(公告)号：US20110074324A1
公开(公告)日：2011-03-31
申请号：US12963392
申请日：2010-12-08
申请人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa , Junnosuke Nakatsugawa
发明人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa , Junnosuke Nakatsugawa
IPC分类号： H02P6/10
CPC分类号： H02P6/10 , H02P21/05
摘要： A control technology for a synchronous motor for suppressing rotational pulsation caused by variation in individuals without making a control algorithm complex is provided. In a motor drive system which is a control device for a synchronous motor, in order to suppress the pulsation component of N times as high as the AC frequency for driving the synchronous motor, a controller in which the phase property of the disturbance response of the controller with respect to the pulsation frequency is within ±45° is arranged. Therefore, the torque pulsation component generated from distortion in induction voltage or variation between phases is suppressed.
摘要翻译：提供了一种用于抑制由个体变化引起的旋转脉动的同步电机的控制技术，而不使控制算法复杂化。在作为同步电动机的控制装置的电动机驱动系统中，为了抑制用于驱动同步电动机的交流频率的N倍的脉动分量，控制器将其中的干扰响应的相位特性相对于脉动频率的控制器设置在±45°以内。因此，抑制了感应电压的变形或相位的变化而产生的转矩脉动成分。

10. 发明授权

US07825620B2 Controller and constant measuring apparatus for AC motor 有权
标题翻译：交流电机控制器和恒定测量装置
公开(公告)号：US07825620B2
公开(公告)日：2010-11-02
申请号：US11838342
申请日：2007-08-14
申请人： Junnosuke Nakatsugawa , Yoshitaka Iwaji , Kazuaki Tobari
发明人： Junnosuke Nakatsugawa , Yoshitaka Iwaji , Kazuaki Tobari
IPC分类号： H02P27/04
CPC分类号： H02P21/06 , H02P21/14 , H02P21/22 , H02P27/04
摘要： A controller and a constant measuring apparatus have a means for supplying a synthesized current, resulting from superimposing an AC current to a DC current, from an inverter and for changing the DC current component of the synthesized current continuously or discontinuously. Accordingly, the controller and constant measuring apparatus can measure inductances, which are electric constants of the AC motor, with high accuracy and can use the measured inductances for control.
摘要翻译：控制器和恒定测量装置具有用于从逆变器提供由交流电流叠加到直流电流而产生的合成电流的装置，并连续或不连续地改变合成电流的直流电流分量。因此，控制器和恒定测量装置可以高精度地测量作为交流电动机的电常数的电感，并且可以使用测量的电感进行控制。

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