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61. 发明申请

US20060044848A1 Converter and power converter that becomes it with the converter 有权
标题翻译：转换器和功率转换器成为转换器
公开(公告)号：US20060044848A1
公开(公告)日：2006-03-02
申请号：US11213728
申请日：2005-08-30
申请人： Takahiro Suzuki , Yoshitaka Iwaji , Tsunehiro Endo , Yasuo Notohara , Yoshiaki Kurita , Tatsuo Ando , Chikara Tanaka
发明人： Takahiro Suzuki , Yoshitaka Iwaji , Tsunehiro Endo , Yasuo Notohara , Yoshiaki Kurita , Tatsuo Ando , Chikara Tanaka
IPC分类号： H02M5/45
CPC分类号： H02M7/003 , H02M5/4585 , H02M2001/0012
摘要： A converter includes a converter circuit 1 having a plurality of bridge-connected semiconductor switching devices for converting AC power into DC power, a smoothing condenser connected in parallel to the DC side of the converter circuit and a current detector provided in a condenser circuit to control a condenser current flowing through the smoothing condenser to be a set value. The condenser current is controlled to be the set value (e.g. zero) to thereby reduce the capacity of the smoothing condenser and make the converter small.
摘要翻译： A转换器包括转换器电路1，其具有用于将AC电力转换为DC电力的多个桥接半导体开关器件，与转换器电路的DC侧并联连接的平滑电容器和设置在电容器电路中的电流检测器流过平滑电容器的电容器电流为设定值。冷凝器电流被控制为设定值（例如零），从而降低平滑电容器的容量并使转换器变小。

62. 发明授权

US06628099B2 Synchronous motor driving system and sensorless control method for a synchronous motor 失效
标题翻译：同步电机的同步电机驱动系统和无传感器控制方法
公开(公告)号：US06628099B2
公开(公告)日：2003-09-30
申请号：US10213685
申请日：2002-08-06
申请人： Yoshitaka Iwaji , Tsunehiro Endo , Kiyoshi Sakamoto , Yuhachi Takakura
发明人： Yoshitaka Iwaji , Tsunehiro Endo , Kiyoshi Sakamoto , Yuhachi Takakura
IPC分类号： H02P318
CPC分类号： H02P21/24 , H02P6/21 , H02P6/34
摘要： Axial error calculation unit is provided for estimating an axial error &Dgr;&thgr; between a d-q axis and a dc-qc axis by using Ld, Lq, Ke, Id*, Iq*, Idc and Iqc in a range of all rotational speeds except zero of a rotational speed command of a synchronous motor, Ld denoting an inductance on a magnetic pole axis d of the synchronous motor, Lq an inductance on a q axis orthogonal to the magnetic pole axis d, Ke a generated power constant of the motor, Id* a current command of the d axis, Iq* a current command on a q axis, Idc a detected current value on an assumed dc axis on control, and Iqc a detected current value on an assumed qc axis orthogonal to the assumed dc axis. Irrespective of presence of saliency, position sensorless control can be achieved in a wide range a low to high speed zone.
摘要翻译：提供轴向误差计算单元，用于通过使用除了零的零以外的所有转速的范围内的Ld，Lq，Ke，Id *，Iq *，Idc和Iqc来估计dq轴和dc-qc轴之间的轴向误差Deltatheta 同步电动机的转速指令Ld表示同步电动机的磁极轴d上的电感，Lq是与磁极轴d正交的aq轴上的电感，Ke是电动机的发电功率常数，Id *电流 d轴的命令，Iq * aq轴上的电流指令，Idc是控制上假设的直流轴上的检测到的电流值，Iqc是与假定的直流轴正交的假设qc轴上的检测电流值。无论存在显着性，可以在低速到高速区域的广泛范围内实现无位置传感器控制。

63. 发明授权

US06614137B2 Linear motor, driving and control system thereof and manufacturing method thereof 有权
公开(公告)号：US06614137B2
公开(公告)日：2003-09-02
申请号：US09791720
申请日：2001-02-26
申请人： Kim Houng Joong , Kohji Maki , Yoshitaka Iwaji , Taizou Miyazaki , Tomoyuki Hanyu
发明人： Kim Houng Joong , Kohji Maki , Yoshitaka Iwaji , Taizou Miyazaki , Tomoyuki Hanyu
IPC分类号： H02K4103
CPC分类号： H02K41/031
摘要： Leakage of magnetic fluxes passing through the gaps between the magnetic pole teeth of an armature is reduced thereby to reduce a magnetic attraction force between the armature and a mover. A linear motor includes a first member and a second member. The first member is configured with at least a magnetic pole of a first polarity having a first opposed portion and a magnetic pole of a second polarity having a second opposed portion. The second member is held by the first opposed portion, while the second member is held by the second opposed portion and moves relatively. The first member is formed of an iron core and a winding, and the second member is formed of a permanent magnet, a magnetic material, a winding of a single type or a combination of a plurality of types of materials.

64. 发明授权

US08878480B2 Synchronous motor drive system and synchronous motor 有权
标题翻译：同步电机驱动系统和同步电机
公开(公告)号：US08878480B2
公开(公告)日：2014-11-04
申请号：US13559267
申请日：2012-07-26
申请人： Yoshitaka Iwaji , Shigehisa Aoyagi , Kazuaki Tobari , Ryoichi Takahata , Masaki Hano
发明人： Yoshitaka Iwaji , Shigehisa Aoyagi , Kazuaki Tobari , Ryoichi Takahata , Masaki Hano
IPC分类号： H02P25/00 , H02P23/00
CPC分类号： H02P6/185 , H02P6/187 , H02P6/188
摘要： In sequentially selecting and driving two phases of the three-phase stator windings of a synchronous motor, detect a speed electromotive voltage of a de-energized phase, relate the speed electromotive voltage to rotor position information beforehand, then count rotor position information backward based on the detected the speed electromotive voltage to estimate rotor position; and then detect rotation speed from the change rate of the rotor position information so as to achieve highly accurate position and speed control.
摘要翻译：在顺序地选择和驱动同步电动机的三相定子绕组的两相中，检测去电相位的速度电动势，预先将速动电压与转子位置信息相关联，然后基于检测出速度电动势估计转子位置; 然后从转子位置信息的变化率检测转速，以实现高精度的位置和速度控制。

65. 发明授权

US08541971B2 Driving system of permanent magnet synchronous motor 有权
标题翻译：永磁同步电机驱动系统
公开(公告)号：US08541971B2
公开(公告)日：2013-09-24
申请号：US12805840
申请日：2010-08-20
申请人： Toshifumi Sakai , Yoshitaka Iwaji , Kiyoshi Sakamoto , Yoshiyuki Taguchi , Daigo Kaneko
发明人： Toshifumi Sakai , Yoshitaka Iwaji , Kiyoshi Sakamoto , Yoshiyuki Taguchi , Daigo Kaneko
IPC分类号： G05B11/28
CPC分类号： H02P9/30 , H02M7/53873 , H02P6/18 , H02P9/009 , H02P21/18
摘要： When applying a high frequency voltage which alternates on positive and negative sides to a permanent magnet synchronous motor, a driving system of synchronous motor switches the applied voltage phase by 120 degrees successively and applies resultant voltages to three phases. A pulsating current generated by applying a high frequency voltage is detected at timing of elapse of a predetermined time Δt since an output voltage of at least one phase has changed from a state in which all output voltages of the three phases of a power converter are positive or negative. Current detection is conducted by using a DC resistor or a phase current sensor provided on a DC bus. A magnetic pole estimation unit calculates the rotor magnetic pole position of the permanent magnet synchronous motor on the basis of differences between positive side and negative side change quantities in three-phase currents obtained from detected current values.
摘要翻译：当施加在正极和负极侧交替永磁同步电动机的高频电压时，同步电动机的驱动系统连续地将施加的电压相位切换120度，并将合成电压施加到三相。在经过预定时间Deltat的定时检测由施加高频电压产生的脉动电流，因为至少一相的输出电压已经从功率转换器的三相的所有输出电压都为正的状态改变或负数。通过使用直流母线上提供的直流电阻或相电流传感器进行电流检测。磁极估计单元根据从检测到的电流值得到的三相电流的正侧和负侧的变化量之差，来计算永磁同步电动机的转子磁极位置。

66. 发明申请

US20130243625A1 Synchronous Electric Motor Drive System 有权
标题翻译：同步电机驱动系统
公开(公告)号：US20130243625A1
公开(公告)日：2013-09-19
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： H02P21/04 , H02P6/14
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。

67. 发明申请

US20130057193A1 Synchronous Motor Drive System and Synchronous Motor 有权
标题翻译：同步电机驱动系统和同步电机
公开(公告)号：US20130057193A1
公开(公告)日：2013-03-07
申请号：US13559267
申请日：2012-07-26
申请人： Yoshitaka Iwaji , Shigehisa Aoyagi , Kazuaki Tobari , Ryoichi Takahata , Masaki Hano
发明人： Yoshitaka Iwaji , Shigehisa Aoyagi , Kazuaki Tobari , Ryoichi Takahata , Masaki Hano
IPC分类号： H02P6/00
CPC分类号： H02P6/185 , H02P6/187 , H02P6/188
摘要： In sequentially selecting and driving two phases of the three-phase stator windings of a synchronous motor, detect a speed electromotive voltage of a de-energized phase, relate the speed electromotive voltage to rotor position information beforehand, then count rotor position information backward based on the detected the speed electromotive voltage to estimate rotor position; and then detect rotation speed from the change rate of the rotor position information so as to achieve highly accurate position and speed control.
摘要翻译：在顺序地选择和驱动同步电动机的三相定子绕组的两相中，检测去电相位的速度电动势，预先将速动电压与转子位置信息相关联，然后基于检测出速度电动势估计转子位置; 然后从转子位置信息的变化率检测转速，以实现高精度的位置和速度控制。

68. 发明授权

US08232751B2 Drive system of synchronous motor 失效
标题翻译：同步电机驱动系统
公开(公告)号：US08232751B2
公开(公告)日：2012-07-31
申请号：US12547693
申请日：2009-08-26
申请人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa
发明人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa
IPC分类号： H02P6/00
CPC分类号： H02P21/04 , H02P6/187 , H02P21/32 , H02P2207/05
摘要： A position sensorless drive method capable of driving a permanent magnet motor by an ideal sine-wave current and enabling the driving from an extremely low-speed range in the vicinity of zero-speed is provided. A neutral-point potential of the permanent magnet motor is detected in synchronization with a PWM waveform of an inverter. The position of a rotor of the permanent magnet motor is estimated from the variation of the neutral-point potential. Since the neutral-point potential is varied in accordance with the magnetic circuit characteristics of an individual permanent magnet motor, the position can be detected regardless of the presence of saliency of the permanent magnet motor.
摘要翻译：提供一种能够通过理想的正弦波电流驱动永磁电动机并且能够在零速度附近的极低速范围内进行驱动的位置无传感器驱动方法。与逆变器的PWM波形同步地检测永磁电动机的中性点电位。根据中性点电位的变化估计永磁电动机的转子的位置。由于中性点电位根据单个永磁电动机的磁路特性而变化，因此可以检测位置，而不管永磁电动机的显着性如何。

69. 发明申请

US20120007528A1 AC MOTOR CONTROL DEVICE AND AC MOTOR DRIVING SYSTEM 有权
标题翻译：交流电动机控制装置和交流电动机驱动系统
公开(公告)号：US20120007528A1
公开(公告)日：2012-01-12
申请号：US13202667
申请日：2010-02-26
申请人： Junnosuke Nakatsugawa , Yoshitaka Iwaji , Norihisa Iwasaki , Hirokazu Nagura
发明人： Junnosuke Nakatsugawa , Yoshitaka Iwaji , Norihisa Iwasaki , Hirokazu Nagura
IPC分类号： H02P21/14 , H02P6/14
CPC分类号： H02P21/141 , H02P21/18 , H02P21/26
摘要： The present invention relates to an AC motor control device and, particularly, to provide an AC control device capable of simply setting a state quantity of an AC motor non-linearly variable, in accordance with the motor driving state and using the setting in motor control, the present invention can be achieved by including a state quantity calculating unit (13, 13a, 13b, 13c) for calculating a state quantity corresponding to a coil interlinkage flux which is an internal quantity of the motor, calculating a setting value of the coil interlinkage flux defined on one axis out of two axes, that is, d and q axes, with a function formula using a current defined on the same one of the axes and a function formula using a state variable defined on the other one of the axes.
摘要翻译：本发明涉及一种交流电动机控制装置，特别涉及提供一种能够根据电动机驱动状态简单地设定交流电动机的非线性变量的状态量并使用电动机控制中的设定的交流控制装置，可以通过包括用于计算与作为电动机的内部量的线圈互连通量对应的状态量的状态量计算单元（13,13a，13b，13c）来计算本发明，计算线圈的设定值在两个轴之间的一个轴上定义的互链通量，即d和q轴，其中函数公式使用在同一个轴上定义的电流，并且使用在另一个轴上定义的状态变量的函数公式。

70. 发明申请

US20110241449A1 THRUST GENERATION MECHANISM, DRIVE DEVICE, XY STAGE AND XYZ STAGE 有权
标题翻译：制动机构，驱动装置，XY阶段和XYZ阶段
公开(公告)号：US20110241449A1
公开(公告)日：2011-10-06
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
CPC分类号： H02K41/03 , H02P23/18 , H02P25/06
摘要： A thrust generation mechanism comprising 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：一种推力产生机构，其包括磁极齿，其被布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。

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