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公开(公告)号：US06670786B2
公开(公告)日：2003-12-30
申请号：US10004814
申请日：2001-12-07
申请人： Kazuaki Tobari , Toshiaki Okuyama
发明人： Kazuaki Tobari , Toshiaki Okuyama
IPC分类号： H02P528
CPC分类号： H02P21/04 , H02P21/18 , H02P21/24 , H02P21/26 , H02P2207/01
摘要： If a speed instruction value is less than a predetermined value, the output current of a power-conversion unit is controlled to be larger than a current value in an ordinary no-load operation, or a frequency instruction value is calculated based on a speed instruction value in place of an estimated speed.
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公开(公告)号：US5016158A
公开(公告)日：1991-05-14
申请号：US544392
申请日：1990-06-27
CPC分类号： H02M7/49
摘要： A parallel multi-inverter system including a plurality of inverters connected in parallel to each other through one or more parallel reactors, wherein output voltages of the inverters are controlled on the basis of the polarity of an output voltage command signal and a comparison result between a value obtained by converting the output voltage command signal into a positive one and a carrier signal to reduce harmonic components of the line-to-line voltages, and further two different switching modes to set the output voltage of the system zero are equally used to prevent a circulating current from flowing through the parallel reactors during each zero potential period of the output voltage of the system.
摘要翻译： 一种并联多逆变器系统，包括通过一个或多个并联电抗器彼此并联连接的多个逆变器，其中基于输出电压命令信号的极性和在一个或多个并联电抗器之间的比较结果来控制反相器的输出电压 通过将输出电压指令信号转换成正极和载波信号而获得的值，以减少线间电压的谐波分量，并且另外两种不同的开关模式用于设定系统零的输出电压同样用于防止 在系统的输出电压的每个零电势周期期间流过并联电抗器的循环电流。
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公开(公告)号：US06344726B1
公开(公告)日：2002-02-05
申请号：US09550252
申请日：2000-04-14
申请人： Kazuaki Tobari , Toshiaki Okuyama
发明人： Kazuaki Tobari , Toshiaki Okuyama
IPC分类号： H02P124
CPC分类号： H02P21/04 , H02P21/18 , H02P21/24 , H02P21/26 , H02P2207/01
摘要： If a speed instruction value is less than a predetermined value, the output current of a power-conversion unit is controlled to be larger than a current value in an ordinary no-load operation, or a frequency instruction value is calculated based on a speed instruction value in place of an estimated speed.
摘要翻译： 如果速度指令值小于预定值，则在正常空载操作中将功率转换单元的输出电流控制为大于当前值，或者基于速度指令计算频率指令值 值代替估计的速度。
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公开(公告)号：US20080169783A1
公开(公告)日：2008-07-17
申请号：US11843686
申请日：2007-08-23
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。
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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
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。
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6.发明授权公开(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。
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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。
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8.发明授权
公开(公告)号：US5029288A
公开(公告)日：1991-07-02
申请号：US340681
申请日：1989-04-20
申请人： Yuzuru Kubota , Toshiaki Okuyama
发明人： Yuzuru Kubota , Toshiaki Okuyama
摘要： A method and apparatus for operating a variable speed power generation system in which the generated output of an induction generator is adjusted by controlling current in the secondary side of the induction generator. Rotation speeds of the induction generator coupled to a prime mover are detected, a secondary current command for controlling a difference between a detected rotation speed and a speed command to be zero is generated, and current in the secondary side of the induction generator is controlled on the basis of the secondary current command. In addition, the generated output of the induction generator is sequentially detected in order that a command value of the speed command is sequentially changed when a detected generated output shows a tendency to increase and, when a detected generated output shifts from an increasing tendency to a decreasing tendency, the command value of the speed command is once changed to a lower speed value and thereafter returned to a higher speed value, thereby maximizing efficiency of the variable speed power generation system and reducing costs.
摘要翻译： 一种用于操作变速发电系统的方法和装置，其中通过控制感应发电机的次级侧的电流来调节感应发电机的产生的输出。 检测到耦合到原动机的感应发电机的转速，产生用于将检测到的转速和速度指令之间的差异控制为零的二次电流指令，将感应发电机次级侧的电流控制在 二次电流指令的基础。 此外，感应发电机的产生的输出被顺序地检测，以便当检测到的产生的输出显示出增加的趋势时，速度指令的指令值被顺序地改变，并且当检测到的产生的输出从增加趋势转移到 速度指令的指令值一度改变为较低速度值，然后返回到较高速度值，从而使变速发电系统的效率最大化并降低成本。
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公开(公告)号：US4503377A
公开(公告)日：1985-03-05
申请号：US568264
申请日：1984-01-04
CPC分类号： H02K17/42 , H02K11/048 , H02P9/007 , H02P9/48
摘要： A variable speed rotary electric machine comprises a stator composed of a stator core and first and second stator windings wound on the stator core, and a cage rotor mounted rotatably within the stator and composed of a rotor core and rotor conductor disposed in a squirrel-cage configuration. The first stator winding is connected to an AC power supply of a fixed frequency. The second stator winding is connected to a power supply of a variable frequency. The first and second stator windings are so wound as to form, respectively, numbers of poles differing from each other. The rotor conductors of the cage rotor are electromagnetically coupled with the magnetic flux generated by the first and second stator windings, respectively, and so disposed as to form a number of poles which is intermediate between the number of the poles formed by the first stator winding and the number of poles formed by said second stator winding.
摘要翻译： 一种变速旋转电机，包括定子铁心和缠绕在定子铁芯上的第一和第二定子绕组构成的定子，以及可转动地安装在定子内的保持架转子，该转子铁心和转子导体由鼠笼 组态。 第一定子绕组连接到固定频率的交流电源。 第二定子绕组连接到可变频率的电源。 第一和第二定子绕组被缠绕成分别形成彼此不同的极数。 保持架转子的转子导体分别与由第一和第二定子绕组产生的磁通电磁耦合，并被设置成形成多个极，该极数介于由第一定子绕组形成的极数之间 以及由所述第二定子绕组形成的极数。
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10.发明授权
公开(公告)号：US4486824A
公开(公告)日：1984-12-04
申请号：US356923
申请日：1982-03-10
申请人： Toshiaki Okuyama , Yuzuru Kubota , Hiroshi Nagase
发明人： Toshiaki Okuyama , Yuzuru Kubota , Hiroshi Nagase
CPC分类号： H02M7/757
摘要： In a converter comprising gate turn-off thyristors, a current at an A.C. part of the converter is detected and a polarity of the detected current and a magnitude of the detected current is checked to determine if it is below a holding current level for maintaining the gate turn-off thyristors on. If the detected current is below the holding current level, a pulse width modulated signal is produced as a gate signal. If the detected level is above the holding current level, a short duration pulse synchronized with a rise and a fall of the pulse width modulated signal is produced as the gate signal. The gate signal is supplied to only those of the gate turn-off thyristors which correspond to the polarity of the detected current.
摘要翻译： 在包括栅极截止晶闸管的转换器中，检测转换器的AC部分的电流，检测检测到的电流的极性和检测到的电流的大小，以确定其是否低于保持电流水平 门极关断晶闸管。 如果检测到的电流低于保持电流电平，则产生脉宽调制信号作为门信号。 如果检测到的电平高于保持电流电平，则产生与脉宽调制信号的上升和下降同步的短持续时间脉冲作为门信号。 栅极信号仅供给与检测到的电流的极性对应的栅极截止晶闸管的栅极信号。
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