公开(公告)号：US20070013333A1

公开(公告)日：2007-01-18

申请号：US11486151

申请日：2006-07-14

申请人： Toshiyuki Ajima ,  Hideki Miyazaki ,  Yoshitaka Iwaji ,  Takao Yanai ,  Kinya Nakatsu

发明人： Toshiyuki Ajima ,  Hideki Miyazaki ,  Yoshitaka Iwaji ,  Takao Yanai ,  Kinya Nakatsu

IPC分类号： H02P7/00

CPC分类号： H02P6/18

摘要： The AC motor driving apparatus comprises an inverter for supplying power to an AC motor, current sensors for detecting current that flows in the motor or inverter, a rotation sensor for detecting the rotation of the rotor in the motor, and a control unit for controlling the driving of the inverter. A current detection value detected by the current sensor and a rotor rotational position are used to estimate three-phase motor current values. The estimated motor current values are used to control the inverter. Thereby, an inexpensive, space-saving AC motor driving apparatus as well as an AC motor controller, electric actuator, or vehicle that can perform highly precise torque control from zero speed to high-speed rotation without depending on the PWM pulse pattern are provided.

公开(公告)号：US06531843B2

公开(公告)日：2003-03-11

申请号：US09941791

申请日：2001-08-30

申请人： Yoshitaka Iwaji ,  Tsunehiro Endo ,  Hiroshi Fujii ,  Tatsuo Ando

发明人： Yoshitaka Iwaji ,  Tsunehiro Endo ,  Hiroshi Fujii ,  Tatsuo Ando

IPC分类号： H02P124

CPC分类号： H02P6/085 ,  H02P6/18

摘要： The present invention provides a control algorithm which instantaneously detects magnetic pole positions in the inside of a motor including polarities of the motor. A controller 1 applies a minute voltage change vhd to a voltage command on a dc axis which constitutes an estimation magnetic pole axis of the motor 3, detects electric currents Idc, Iqc of a motor 3 and discriminates the polarities of the magnetic pole axes by making use of the difference between a cycle in which ripple components of the electric currents Idc, Iqc become positive and a cycle in which the ripple components become negative or the difference between positive-side and negative-side current change rates. Further, the minute voltage change vhd with respect to the above-mentioned voltage command is generated on both of the dc axis and the qc axis rectangular thereto, and the magnetic pole positions of the motor are directly estimated based on the current ripple components on the respective axes. Without separately providing a cycle for discriminating the polarities of the magnetic poles, the cycle from the turning-on of a power source to the starting of the motor can be shortened so that the high-speed starting of the motor can be realized.

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。

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。

公开(公告)号：US20090135630A1

公开(公告)日：2009-05-28

申请号：US12335867

申请日：2008-12-16

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： H02M5/458

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。

公开(公告)号：US07271557B2

公开(公告)日：2007-09-18

申请号：US11486151

申请日：2006-07-14

申请人： Toshiyuki Ajima ,  Hideki Miyazaki ,  Yoshitaka Iwaji ,  Takao Yanai ,  Kinya Nakatsu

发明人： Toshiyuki Ajima ,  Hideki Miyazaki ,  Yoshitaka Iwaji ,  Takao Yanai ,  Kinya Nakatsu

IPC分类号： H02P7/00

CPC分类号： H02P6/18

摘要： The AC motor driving apparatus comprises an inverter for supplying power to an AC motor, current sensors for detecting current that flows in the motor or inverter, a rotation sensor for detecting the rotation of the rotor in the motor, and a control unit for controlling the driving of the inverter. A current detection value detected by the current sensor and a rotor rotational position are used to estimate three-phase motor current values. The estimated motor current values are used to control the inverter. Thereby, an inexpensive, space-saving AC motor driving apparatus as well as an AC motor controller, electric actuator, or vehicle that can perform highly precise torque control from zero speed to high-speed rotation without depending on the PWM pulse pattern are provided.

摘要翻译： 交流电动机驱动装置包括用于向交流电动机供电的逆变器，用于检测在电动机或逆变器中流动的电流的电流传感器，用于检测电动机中的转子的旋转的旋转传感器，以及用于控制电动机的控制单元 驱动变频器。 使用由电流传感器检测的电流检测值和转子旋转位置来估计三相电动机电流值。 估计电机电流值用于控制变频器。 因此，提供了一种廉价的，节省空间的AC电动机驱动装置以及可以执行从零速到高速旋转的高精度转矩控制的交流电动机控制器，电动致动器或车辆，而不依赖于PWM脉冲模式。

公开(公告)号：US07002274B2

公开(公告)日：2006-02-21

申请号：US10392400

申请日：2003-03-20

申请人： Houng Joong Kim ,  Yoshitaka Iwaji

发明人： Houng Joong Kim ,  Yoshitaka Iwaji

IPC分类号： H02K21/12

CPC分类号： H02K21/029 ,  H02K16/02

摘要： In a rotary electric machine capable of improving the reliability of an object provided with the same, a permanent magnet type synchronous rotary electric machine comprises has a stator provided with windings. A rotor arranged supported for rotation in the stator with a gap between the inner surface of the stator and the outer surface thereof, is divided into two rotor bodies each provided with permanent magnets of opposite polarities alternately arranged in a circumferential direction. In switching the permanent magnet type synchronous rotary electric machine from a motor to a generator, a second rotor body is moved axially relative to a first rotor body to an axial position that makes the intensity of a combined magnetic field created by the permanent magnets lower than that of a combined magnetic field created by the permanent magnets when the second rotor body is located at a predetermined position, and then the second rotor body is moved to the predetermined position.

摘要翻译： 在能够提高设置有该物体的物体的可靠性的旋转电机中，永久磁铁式同步旋转电机具有定子，该定子设有绕组。 在定子的内表面和外表面之间具有间隙地配置的转子，被配置为在定子中旋转，分成两个转子体，每个转子体具有沿圆周方向交替布置的相反极性的永磁体。 在将永磁型同步旋转电机从电动机切换到发电机时，第二转子体相对于第一转子体轴向移动到轴向位置，使得由永磁体产生的组合磁场的强度低于 当第二转子体位于预定位置时由永磁体产生的组合磁场的磁场，然后第二转子体移动到预定位置。

公开(公告)号：US06310456B1

公开(公告)日：2001-10-30

申请号：US09446849

申请日：1999-12-28

申请人： Yasuo Morooka ,  Hiromi Inaba ,  Takashi Nakahara ,  Takashi Okada ,  Masahiro Tobise ,  Yoshitaka Iwaji

发明人： Yasuo Morooka ,  Hiromi Inaba ,  Takashi Nakahara ,  Takashi Okada ,  Masahiro Tobise ,  Yoshitaka Iwaji

IPC分类号： G05B19408

CPC分类号： G05B13/04 ,  G05B19/19 ,  G05B2219/42005 ,  Y02P90/265

摘要： A control system for determining a control function for a control device on the basis of a transfer function of an object to be controlled and for adjusting an operation quantity of an object to be controlled in accordance with the determined control operation function, wherein an control function of a first control device is determined so that a closed-loop transfer function of a control system including the object to be controlled and the first control device coincides with a predetermined first transfer function, an control function of a second control device is determined, in a closed loop control system including the control system and the first control device, so that a transfer function from a disturbance applied to the object to be controlled to a state variable of a point at which the disturbance is applied to the object to be controlled, and a sum signal indicative of a sum of outputs of the first and second control devices is used as an operation quantity of the object to be controlled.

摘要翻译： 一种控制系统，用于基于要控制的对象的传递函数确定控制装置的控制功能，并且用于根据所确定的控制操作功能来调整要控制的对象的操作量，其中控制功能 确定第一控制装置的控制功能，使得包括要控制的对象和第一控制装置的控制系统的闭环传递功能与预定的第一传递函数一致，确定第二控制装置的控制功能， 包括控制系统和第一控制装置的闭环控制系统，使得从施加到要控制的对象的干扰的传递函数到对要被控制的对象施加干扰的点的状态变量， 并且使用表示第一和第二控制装置的输出的和的和信号作为对象的操作量 受控。

公开(公告)号：US06225774B1

公开(公告)日：2001-05-01

申请号：US09421368

申请日：1999-10-19

申请人： Ryozo Masaki ,  Yoshitaka Iwaji ,  Satoru Kaneko

发明人： Ryozo Masaki ,  Yoshitaka Iwaji ,  Satoru Kaneko

IPC分类号： H02P517

CPC分类号： H02P21/22

摘要： In an a.c. motor control method and apparatus, operations are carried out at a current controller and a voltage setting using interrupt signals generated in synchronism with maximum and minimum values of a carrier wave at a control device for controlling an inverter for driving an alternating current motor. In operations at the voltage setting part carried out using one of the interrupt signals, a carrier wave is corrected in such a manner that phases of voltage command values gradually come into synchronism with a carrier wave. An integral multiple of the period of the carrier wave becomes the period of the a.c. voltage and current control operation timing is carried out in synchronism with the carrier wave.

摘要翻译： 在a.c. 电动机控制方法和装置，在控制用于驱动交流电动机的逆变器的控制装置处，与载波的最大值和最小值同步产生的中断信号，在电流控制器和电压设定下进行操作。 在使用其中一个中断信号执行的电压设定部分的操作中，以使电压指令值的相位逐渐与载波同步的方式校正载波。 载波周期的整数倍成为a.c.的周期。 电压和电流控制操作定时与载波同步地进行。