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    • 72. 发明授权
    • AC motor driving apparatus and method of controlling the same
    • 交流电动机驱动装置及其控制方法
    • US07271557B2
    • 2007-09-18
    • US11486151
    • 2006-07-14
    • Toshiyuki AjimaHideki MiyazakiYoshitaka IwajiTakao YanaiKinya Nakatsu
    • Toshiyuki AjimaHideki MiyazakiYoshitaka IwajiTakao YanaiKinya Nakatsu
    • H02P7/00
    • H02P6/18
    • 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.
    • 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。
    • 76. 发明授权
    • Rotary electric machine and automobile provided with the same
    • 旋转电机和汽车配备相同
    • US07002274B2
    • 2006-02-21
    • US10392400
    • 2003-03-20
    • Houng Joong KimYoshitaka Iwaji
    • Houng Joong KimYoshitaka Iwaji
    • H02K21/12
    • H02K21/029H02K16/02
    • 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.
    • 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。
    • 77. 发明授权
    • Synchronous motor driving system
    • 同步电机驱动系统
    • US06650081B2
    • 2003-11-18
    • US10099590
    • 2002-03-13
    • Yoshitaka IwajiTsunehiro EndoKiyoshi SakamotoYuhachi Takakura
    • Yoshitaka IwajiTsunehiro EndoKiyoshi SakamotoYuhachi Takakura
    • H02P146
    • H02P21/24H02P6/21H02P6/34
    • 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.
    • 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。
    • 78. 发明授权
    • Control system and method
    • 控制系统及方法
    • US06310456B1
    • 2001-10-30
    • US09446849
    • 1999-12-28
    • Yasuo MorookaHiromi InabaTakashi NakaharaTakashi OkadaMasahiro TobiseYoshitaka Iwaji
    • Yasuo MorookaHiromi InabaTakashi NakaharaTakashi OkadaMasahiro TobiseYoshitaka Iwaji
    • G05B19408
    • G05B13/04G05B19/19G05B2219/42005Y02P90/265
    • 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.
    • 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。
    • 79. 发明授权
    • Motor control method and motor control system
    • 电机控制方式及电机控制系统
    • US06225774B1
    • 2001-05-01
    • US09421368
    • 1999-10-19
    • Ryozo MasakiYoshitaka IwajiSatoru Kaneko
    • Ryozo MasakiYoshitaka IwajiSatoru Kaneko
    • H02P517
    • H02P21/22
    • 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.
    • 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。