公开(公告)号：US06556460B2

公开(公告)日：2003-04-29

申请号：US10212841

申请日：2002-08-07

申请人： Seiji Ishida ,  Toshiaki Okuyama ,  Tetsuo Kojima ,  Kiyoshi Nakata ,  Akira Horie

发明人： Seiji Ishida ,  Toshiaki Okuyama ,  Tetsuo Kojima ,  Kiyoshi Nakata ,  Akira Horie

IPC分类号： H02M114

CPC分类号： H02M1/143

摘要： The voltage applied to a power converter is detected by a voltage detector, a function generator produces a voltage proportional to this detected voltage, and a high-pass filter detects an AC component superimposed on the voltage. An adder adds a bias voltage to this AC component, and an adder adds the output from the adder and the output from the function generator. The output from the adder is compared with a triangular wave produced from a rectangular wave generator, and a switching element is controlled to make switching operation according to the compared result. When a DC current is decreased by the AC component, a resistance current Ib is increased so that the AC components superimposed on the current and resistance current can be cancelled out.

摘要翻译： 施加到功率转换器的电压由电压检测器检测，功能发生器产生与该检测电压成比例的电压，高通滤波器检测叠加在电压上的AC分量。 加法器向该AC分量加上偏置电压，加法器将来自加法器的输出和来自函数发生器的输出相加。 将来自加法器的输出与由矩形波发生器产生的三角波进行比较，并且根据比较结果控制开关元件进行开关操作。 当通过AC分量减小DC电流时，电阻电流Ib增加，从而可以消除叠加在电流和电阻电流上的AC分量。

公开(公告)号：US06633495B2

公开(公告)日：2003-10-14

申请号：US10101529

申请日：2002-03-20

申请人： Seiji Ishda ,  Toshiaki Okuyama ,  Tetsuo Kojima ,  Kiyoshi Nakata ,  Akira Horie

发明人： Seiji Ishda ,  Toshiaki Okuyama ,  Tetsuo Kojima ,  Kiyoshi Nakata ,  Akira Horie

IPC分类号： H02M324

CPC分类号： H02M1/143

摘要： The voltage applied to a power converter is detected by a voltage detector, a function generator produces a voltage proportional to this detected voltage, and a high-pass filter detects an AC component superimposed on the voltage. An adder adds a bias voltage to this AC component, and an adder adds the output from the adder and the output from the function generator. The output from the adder is compared with a triangular wave produced from a rectangular wave generator, and a switching element is controlled to make switching operation according to the compared result. When a DC current is decreased by the AC component, a resistance current Ib is increased so that the AC components superimposed on the current and resistance current can be cancelled out.

摘要翻译： 施加到功率转换器的电压由电压检测器检测，功能发生器产生与该检测电压成比例的电压，高通滤波器检测叠加在电压上的AC分量。 加法器向该AC分量加上偏置电压，加法器将来自加法器的输出和来自函数发生器的输出相加。 将来自加法器的输出与由矩形波发生器产生的三角波进行比较，并且根据比较结果控制开关元件进行开关操作。 当直流电流被交流分量降低时，电阻电流Ib增加，从而可以消除叠加在电流和电阻电流上的交流分量。

公开(公告)号：US06642689B2

公开(公告)日：2003-11-04

申请号：US09956088

申请日：2001-09-20

申请人： Seiji Ishida ,  Toshiaki Okuyama ,  Takashi Ogawa ,  Tetsuo Kojima ,  Kiyoshi Nakata

发明人： Seiji Ishida ,  Toshiaki Okuyama ,  Takashi Ogawa ,  Tetsuo Kojima ,  Kiyoshi Nakata

IPC分类号： H02P763

CPC分类号： H02M7/53803 ,  B60L9/22 ,  B60L15/025 ,  B60L2200/26 ,  H02M7/53871 ,  Y02T10/643

摘要： Filter capacitor voltage “Ecf1” is detected and then after d-axis voltage correction value “dvd”, q-axis voltage correction value “dvq”, q-axis current correction value “diq”, and frequency correction value “d&ohgr;1” have been computed from the AC components of “Ecf1” and the results have been added to the corresponding d-axis voltage command, q-axis voltage command, q-axis current, and frequency command, the DC current of the power converter is controlled. Thus, the AC components included in the DC current are offset and the AC components are suppressed effectively.

公开(公告)号：US06496397B2

公开(公告)日：2002-12-17

申请号：US09826857

申请日：2001-04-06

申请人： Keijiro Sakai ,  Toshiaki Okuyama ,  Kinya Nakatsu ,  Seiji Ishida ,  Hiroshi Fujii ,  Junji Kato ,  Masahiro Hiraga

发明人： Keijiro Sakai ,  Toshiaki Okuyama ,  Kinya Nakatsu ,  Seiji Ishida ,  Hiroshi Fujii ,  Junji Kato ,  Masahiro Hiraga

IPC分类号： H02M7537

CPC分类号： H02M7/48 ,  H02M7/53875 ,  H02P27/08

摘要： An inverter device has a three-phase inverter for converting DC electric power into AC power for supplement to an AC electric motor and a control device operatively associated therewith, and the control device includes a phase current detection section for outputting a phase current waveform based on a DC input current and an operational processor section for performing operational processing for control of said inverter device based on the phase current waveform. Thereby, the inverter device can be constructed to be very compact.

摘要翻译： 逆变器装置具有三相逆变器，用于将直流电力转换为交流电，以补充交流电动机和与其可操作地相关联的控制装置，并且控制装置包括相电流检测部分，用于输出基于 直流输入电流和操作处理器部分，用于基于相电流波形执行用于控制所述逆变器装置的操作处理。 因此，逆变器装置可以被构造成非常紧凑。

公开(公告)号：US06657412B2

公开(公告)日：2003-12-02

申请号：US09941873

申请日：2001-08-30

申请人： Seiji Ishida ,  Keijiro Sakai ,  Toshiaki Okuyama ,  Hiroshi Fujii ,  Hiroyuki Tomita ,  Tatsuo Ando ,  Yuhachi Takakura ,  Hideo Kimura

发明人： Seiji Ishida ,  Keijiro Sakai ,  Toshiaki Okuyama ,  Hiroshi Fujii ,  Hiroyuki Tomita ,  Tatsuo Ando ,  Yuhachi Takakura ,  Hideo Kimura

IPC分类号： G05B1128

CPC分类号： H03K7/08 ,  H02M7/53871

摘要： In detecting an output current of a power converter based on a DC current Idc of the power converter, the pulse width of the DC current Idc becomes narrower when the pulse width of a line voltage is narrower, and its detection becomes difficult. A voltage command correction unit 9 according to the present invention corrects voltage commands such that pulse width of a line voltage becomes zero when the pulse width of the line voltage is less than the minimum pulse width, not to output a line pulse, and an error generated by the correction is integrated. This integrated error is added to the line voltage in the next time, and the integrated pulse width of the line voltage is outputted when the pulse width becomes larger than or equal to the minimum pulse width.

公开(公告)号：US06704212B2

公开(公告)日：2004-03-09

申请号：US10222048

申请日：2002-08-16

申请人： Teiichi Furukawa ,  Masahiro Hiraga ,  Hiroyuki Tomita ,  Seiji Ishida ,  Toshiaki Okuyama

发明人： Teiichi Furukawa ,  Masahiro Hiraga ,  Hiroyuki Tomita ,  Seiji Ishida ,  Toshiaki Okuyama

IPC分类号： H02M112

CPC分类号： H02M7/53875 ,  H02M2001/0009

摘要： In calculation 3 phase AC output current Iu, Iv,Iw of an inverter based on the input DC current Idc of the inverter, it is difficult to detect the DC current Idc when the line-to-line voltage pulse width is narrow, thereby the DC current Idc pulse width becomes narrower. The frequency Fc of the carrier wave C is lowered in a phase whose line-to-line voltage is high, thereby the DC current Idc pulse width is set wider. As a result, the current detection is enabled.

摘要翻译： 在逆变器的输入DC电流Idc的逆变器的3相AC输出电流Iu，Iv，Iw的计算中，当线间电压脉冲宽度窄时，难以检测直流电流Idc， 直流电流Idc脉冲宽度变窄。载波C的频率Fc在线间电压高的相位下降，由此使直流电流Idc脉冲宽度变宽。 结果，启用电流检测。

公开(公告)号：US06556464B2

公开(公告)日：2003-04-29

申请号：US09956257

申请日：2001-09-20

申请人： Keijirou Sakai ,  Toshiaki Okuyama ,  Kinya Nakatsu ,  Seiji Ishida ,  Hiroshi Fujii ,  Junji Kato ,  Masahiro Hiraga

发明人： Keijirou Sakai ,  Toshiaki Okuyama ,  Kinya Nakatsu ,  Seiji Ishida ,  Hiroshi Fujii ,  Junji Kato ,  Masahiro Hiraga

IPC分类号： H02M75387

CPC分类号： H02M1/4233 ,  H02M1/4216 ,  H02M2001/0012 ,  Y02B70/126

摘要： A single-phase PWM converter system in accordance with the present invention employs a sample-and-hold circuit which samples and holds a direct current in the state wherein one of two-phase gate signals of a positive or negative side arm is ON and the other phase is OFF, determines the sign of an output of the sample-and-hold circuit according to the two-phase gate condition, detects a phase current at the input side of the converter, and controls a voltage at the input side of the converter so that the detected current value agrees with a power supply current command. Further, a three-phase PWM converter system in accordance with the present invention detects the effective current and the ineffective current of the power supply current from the direct current, and based on the values, controls the PWM converter so that the sine wave power supply current whose power supply power factor is 1 is provided.

摘要翻译： 根据本发明的单相PWM转换器系统采用采样和保持电路，其采样和保持直流电流，其中正或负侧臂的两相门信号之一为ON， 其他相位为OFF，根据两相门条件确定采样保持电路的输出的符号，检测转换器输入侧的相电流，并控制转换器的输入侧的电压 转换器，使得检测到的电流值与电源电流指令一致。此外，根据本发明的三相PWM转换器系统从直流电流检测电源电流的有效电流和无效电流，并且基于 在该值上，控制PWM转换器，使得提供功率因数为1的正弦波电源电流。

公开(公告)号：US20080169783A1

公开(公告)日：2008-07-17

申请号：US11843686

申请日：2007-08-23

申请人： KOUKI YAMAMOTO ,  Toshiaki Okuyama ,  Hiroyuki Tomita ,  Yoshitaka Iwaji ,  Koichiro Nagata

发明人： KOUKI YAMAMOTO ,  Toshiaki Okuyama ,  Hiroyuki Tomita ,  Yoshitaka Iwaji ,  Koichiro Nagata

IPC分类号： H02P27/08

CPC分类号： H02P21/09 ,  H02P21/16 ,  H02P2207/01

摘要： The present invention provides an induction motor controller which includes: a circuit for generating a d-axis current reference signal from a d-axis current command value and a periodically varying periodic signal; a d-axis current controller for controlling a d-axis motor current flowing through an induction motor to be controlled to match the d-axis current reference signal; parameter determining means for calculating and determining a motor parameter of the induction motor based on a deviation of the d-axis motor current from the d-axis current reference signal, and controlling a voltage applied to the induction motor using a compensation voltage calculated from the calculated and determined motor parameter, in which a control parameter for controlling the induction motor is set based on the calculated and determined motor parameter.

摘要翻译： 本发明提供一种感应电动机控制器，其包括：用于根据d轴电流指令值和周期性变化的周期信号产生d轴电流参考信号的电路; d轴电流控制器，用于控制流过感应电动机的d轴电动机电流以被控制以匹配d轴电流参考信号; 参数确定装置，用于基于d轴电动机电流与d轴电流参考信号的偏差来计算和确定感应电动机的电动机参数，并且使用从所述d轴电流参考信号计算的补偿电压来控制施加到感应电动机的电压 计算和确定的电动机参数，其中基于所计算和确定的电动机参数来设定用于控制感应电动机的控制参数。

公开(公告)号：US06841911B2

公开(公告)日：2005-01-11

申请号：US10083531

申请日：2002-02-27

申请人： Houng Joong Kim ,  Toshiaki Okuyama

发明人： Houng Joong Kim ,  Toshiaki Okuyama

IPC分类号： B23Q15/00 ,  B23Q5/04 ,  B23Q5/10 ,  H02K1/22 ,  H02K1/27 ,  H02K7/12 ,  H02K16/02 ,  H02K21/16 ,  H02K29/06

CPC分类号： H02K16/02 ,  H02K7/12

摘要： A machine tool provided with an electric motor which can maintain the fixed output power in a wide speed range. The electric motor has a stator having a primary winding, and a rotor having a field magnet and a shaft, said field magnet comprising a first field magnet having different polarity magnetic poles sequentially arranged in a rotating direction and a second field magnet having different polarity magnetic poles sequentially arranged in a rotating direction, and a mechanism for shifting one field magnet in axial and rotating directions with respect to the other field magnet, whereby a composite magnetic field of said first and said second field magnets is changed.

摘要翻译： 一种具有能够在宽的速度范围内保持固定输出功率的电动机的机床。 电动机具有初级绕组的定子和具有场磁体和轴的转子，所述磁场磁体包括顺序地沿旋转方向排列的极性不同的磁极的第一场磁体和具有不同极性磁性的第二磁场磁体 依次布置在旋转方向的磁极和用于相对于另一个磁场磁体沿轴向和旋转方向移动一个磁场磁体的机构，从而改变所述第一和第二磁场的复合磁场。

公开(公告)号：US5355749A

公开(公告)日：1994-10-18

申请号：US992112

申请日：1992-12-17

申请人： Sanshiro Obara ,  Ryoso Masaki ,  Toshiaki Okuyama ,  Tsutomu Ohmae ,  Keigo Naoi ,  Makoto Shioya

发明人： Sanshiro Obara ,  Ryoso Masaki ,  Toshiaki Okuyama ,  Tsutomu Ohmae ,  Keigo Naoi ,  Makoto Shioya

IPC分类号： B60K31/00 ,  B60K31/04 ,  B60L3/00 ,  B60L11/18 ,  B60L15/00 ,  B60L15/20 ,  B60W10/08 ,  F16H59/36 ,  F16H61/00 ,  F16H61/66 ,  G05D13/00 ,  G05D13/66 ,  H02P25/04 ,  H02P27/06

CPC分类号： B60K6/543 ,  B60K31/04 ,  B60L11/1803 ,  B60L15/025 ,  B60L15/2045 ,  B60L15/2054 ,  B60L8/00 ,  B60L8/003 ,  B60W10/08 ,  B60W10/107 ,  B60W30/1882 ,  F16H61/66 ,  B60W2050/0019 ,  B60W2540/10 ,  B60W2710/1005 ,  B60W2720/10 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/7083 ,  Y02T10/7283 ,  Y10S903/918 ,  Y10T477/33 ,  Y10T477/347

摘要： A control apparatus of a motor drive vehicle includes a unit for generating a target vehicle speed; a speed instruction unit for generating a target motor rotational speed of the motor based upon a preset motor control pattern in response to the target vehicle speed; a power circuit for operating the motor at the target motor rotational speed upon receipt of the target motor rotational speed; a variable transmission unit for converting a drive output from the motor into a transmission ratio for instructing a rotational speed of the drive output, and transferring the converted transmission ratio to a drive shaft of the motor drive vehicle; and a transmission ratio calculating unit for determining the transmission gear ratio based on the target vehicle speed and the target motor rotational speed thereby to instruct the determined transmission gear ratio to the variable transmission unit. A control method sets a target vehicle speed value; produces a target motor rotational speed based upon the target vehicle speed value and a preset motor control pattern; operates the motor at the target motor rotational speed; determines a transmission gear ratio based upon both of the target vehicle speed and the target motor rotational speed; and converts a rotational speed of a drive output into the transmission ratio and transfers the converted transmission ratio to a drive shaft.

摘要翻译： 电机驱动车辆的控制装置包括用于产生目标车速的单元; 速度指令单元，用于响应于目标车速，基于预设的电动机控制模式产生电动机的目标电动机转速; 用于在接收到目标电动机转速时以目标电动机转速操作电动机的电源电路; 可变传动单元，用于将从马达输出的驱动转换为用于指示驱动输出的转速的传动比，并将转换的传动比转移到马达驱动车辆的驱动轴; 以及传动比计算单元，用于基于目标车速和目标电动机转速来确定变速比，从而指示所确定的变速传动比与可变传动单元。 控制方法设定目标车速值; 基于目标车速值和预设的电动机控制模式产生目标电动机转速; 以目标电机转速运转电机; 基于目标车速和目标电动机转速两者确定变速比; 并将驱动输出的转速转换为变速比，并将变换后的变速比传递给驱动轴。