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1. 发明授权

US06646896B2 Controller of AC machine 失效
公开(公告)号：US06646896B2
公开(公告)日：2003-11-11
申请号：US10098055
申请日：2002-03-15
申请人： Yoshitoshi Akita , Toshiaki Okuyama , Koichiro Nagata , Shigetoshi Okamatsu
发明人： Yoshitoshi Akita , Toshiaki Okuyama , Koichiro Nagata , Shigetoshi Okamatsu
IPC分类号： H02M545
CPC分类号： H02M5/458 , H02M1/36 , H02M2001/322 , H02P23/26
摘要： For use in a system in which a capacitor is connected between an AC machine and an inverter in order to improve the power factor, a controller for an AC machine capable of even when the overvoltage occurs due to the self-excitation between the AC machine and the capacitor, reactivating stably the inverter to continue the running. When the operation of the inverter is stopped and then the inverter is reactivated, the manipulation of starting the switching of the inverter is performed after a DC voltage of the inverter has been decreased to the operating voltage in the running, whereby the reactivation is performed stably without stopping the system.

2. 发明申请

US20080088291A1 ELECTRIC POWER CONVERTER APPARATUS 有权
标题翻译：电力转换器装置
公开(公告)号：US20080088291A1
公开(公告)日：2008-04-17
申请号：US11842988
申请日：2007-08-22
申请人： Koichiro Nagata , Toshiaki Okuyama , Shigetoshi Okamatsu , Koichi Miyazaki
发明人： Koichiro Nagata , Toshiaki Okuyama , Shigetoshi Okamatsu , Koichi Miyazaki
IPC分类号： G05F1/40
CPC分类号： H02P21/0003
摘要： An electric power converter apparatus having a function of converting a power source voltage into an AC voltage having an arbitrary frequency and maintaining an output voltage constant even on the power source variation, in which the electric power converter apparatus decreases the output voltage when the output voltage drops to equal to or less than a predetermined value, afterward, increases the output voltage in response to a predetermined rate of change when the power source voltage rises.
摘要翻译：一种具有将电源电压转换成具有任意频率的交流电压并且即使在电力变化时也保持输出电压恒定的功能的电力转换装置，其中电力变换装置在输出电压下降到等于或小于预定值，然后当电源电压上升时响应于预定变化率增加输出电压。

3. 发明授权

US07869232B2 Electric power converter suppressing output voltage variation due to input voltage fluctuation 有权
标题翻译：电力转换器抑制输入电压波动引起的输出电压变化
公开(公告)号：US07869232B2
公开(公告)日：2011-01-11
申请号：US11842988
申请日：2007-08-22
申请人： Koichiro Nagata , Toshiaki Okuyama , Shigetoshi Okamatsu , Koichi Miyazaki
发明人： Koichiro Nagata , Toshiaki Okuyama , Shigetoshi Okamatsu , Koichi Miyazaki
IPC分类号： H02M5/458 , H02M7/5395
CPC分类号： H02P21/0003
摘要： An electric power converter apparatus having a function of converting a power source voltage into an AC voltage having an arbitrary frequency and maintaining an output voltage constant even on the power source variation, in which the electric power converter apparatus decreases the output voltage when the output voltage drops to equal to or less than a predetermined value, afterward, increases the output voltage in response to a predetermined rate of change when the power source voltage rises.
摘要翻译：一种具有将电源电压转换成具有任意频率的交流电压并且即使在电力变化时也保持输出电压恒定的功能的电力转换装置，其中电力变换装置在输出电压下降到等于或小于预定值，然后当电源电压上升时响应于预定变化率增加输出电压。

4. 发明授权

US06611125B2 Method for calculating inertia moment and driver for electric motor 失效
标题翻译：计算电机惯性矩和驱动器的方法
公开(公告)号：US06611125B2
公开(公告)日：2003-08-26
申请号：US09791680
申请日：2001-02-26
申请人： Koichiro Nagata , Toshiaki Okuyama , Hiroshi Fujii , Shigetoshi Okamatsu
发明人： Koichiro Nagata , Toshiaki Okuyama , Hiroshi Fujii , Shigetoshi Okamatsu
IPC分类号： H02P528
CPC分类号： H02P21/06
摘要： An electric motor is rotated at a velocity &ohgr;1. After that, during &Dgr;t12 seconds, the 1st acceleration is executed at a rate (&ohgr;2−&ohgr;1)/&Dgr;t12. During this acceleration, the torque &tgr;m is calculated so as to execute the time integration. After the lapse of &Dgr;t12, the integrated result is stored. Next, the velocity is set to be &ohgr;3. After that, during &Dgr;t34 seconds, the 2nd acceleration is executed at a rate (&ohgr;4−&ohgr;3)/&Dgr;t34. At the 2nd acceleration, although the integration-starting and the integration-terminating velocities are each equal to those at the 1st acceleration, the acceleration rate is modified (&ohgr;3=&ohgr;1, &ohgr;4=&ohgr;2, &Dgr;t12≠&Dgr;t34). During this acceleration, the torque &tgr;m is calculated so as to execute the time integration, after the lapse of &Dgr;t34, storing the integrated result. The inertia J is calculated using the 1st and 2nd integrated results.
摘要翻译：电动机以速度ω1旋转。之后，在DELTA12秒期间，第一加速度以速率（ω2-ω1）/ DELTAt12执行。在该加速期间，计算转矩taum以便执行时间积分。经过DELTAt12后，存储了积分结果。接下来，将速度设为ω3。之后，在DELTA34秒期间，以速率（ω4-ω3）/ DELTAt34执行第二加速度。在第二加速度下，虽然积分开始和积分终止速度均等于第一加速度时的加速度，但是加速度被修改（ω=ω，ω，ω=ω，DELTAt12，ΔTATA34）。在该加速期间，计算转矩taum，以便在DELTAt34经过DELTAt34之后执行时间积分，从而存储积分结果。使用第1和第2综合结果计算惯性J。

5. 发明申请

US20080169783A1 INDUCTION MOTOR CONTROLLER 有权
标题翻译：感应电动机控制器
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。

6. 发明授权

US07332888B2 Driving apparatus for a motor 有权
标题翻译：电机驱动装置
公开(公告)号：US07332888B2
公开(公告)日：2008-02-19
申请号：US11359405
申请日：2006-02-23
申请人： Koichiro Nagata , Toshiaki Okuyama , Haruo Nemoto , Toshio Katayama
发明人： Koichiro Nagata , Toshiaki Okuyama , Haruo Nemoto , Toshio Katayama
IPC分类号： H02P27/04
CPC分类号： H02P21/09
摘要： A motor driving apparatus includes: a current instruction calculator, for calculating a current instruction value based on a deviation between a speed instruction value and an estimated speed value; a current controller, for controlling an output current based on the current instruction value; a frequency instruction calculator, for calculating a frequency instruction value based on an output voltage instruction value or an output voltage detection value, wherein, when an induction motor is to be activated, the current instruction value and the frequency instruction value are calculated directly using the speed instruction value, and an output current and an output frequency are controlled in accordance with the current instruction value and the frequency instruction value.
摘要翻译：电动机驱动装置包括：当前指令计算器，用于基于速度指令值和估计速度值之间的偏差来计算当前指令值; 电流控制器，用于基于当前指令值来控制输出电流; 频率指令计算器，用于基于输出电压指令值或输出电压检测值计算频率指令值，其中当感应电动机被激活时，直接使用所述电流指令值和频率指令值来计算当前指令值和频率指令值速度指令值，输出电流和输出频率根据当前指令值和频率指令值进行控制。

7. 发明授权

US07671558B2 Induction motor controller 有权
标题翻译：感应电动机控制器
公开(公告)号：US07671558B2
公开(公告)日：2010-03-02
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： H02P27/04
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。

8. 发明申请

US20060192521A1 Driving apparatus for a motor 有权
标题翻译：电机驱动装置
公开(公告)号：US20060192521A1
公开(公告)日：2006-08-31
申请号：US11359405
申请日：2006-02-23
申请人： Koichiro Nagata , Toshiaki Okuyama , Haruo Nemoto , Toshio Katayama
发明人： Koichiro Nagata , Toshiaki Okuyama , Haruo Nemoto , Toshio Katayama
IPC分类号： H02P27/04
CPC分类号： H02P21/09
摘要： A motor driving apparatus includes: a current instruction calculator, for calculating a current instruction value based on a deviation between a speed instruction value and an estimated speed value; a current controller, for controlling an output current based on the current instruction value; a frequency instruction calculator, for calculating a frequency instruction value based on an output voltage instruction value or an output voltage detection value, wherein, when an induction motor is to be activated, the current instruction value and the frequency instruction value are calculated directly using the speed instruction value, and an output current and an output frequency are controlled in accordance with the current instruction value and the frequency instruction value.
摘要翻译：电动机驱动装置包括：当前指令计算器，用于基于速度指令值和估计速度值之间的偏差来计算当前指令值; 电流控制器，用于基于当前指令值来控制输出电流; 频率指令计算器，用于基于输出电压指令值或输出电压检测值计算频率指令值，其中当感应电动机被激活时，直接使用所述电流指令值和频率指令值来计算当前指令值和频率指令值速度指令值，输出电流和输出频率根据当前指令值和频率指令值进行控制。

9. 发明申请

US20070210741A1 DRIVER FOR INDUCTION MOTOR AND METHOD OF DRIVING THE SAME 有权
标题翻译：用于感应电机的驱动器及其驱动方法
公开(公告)号：US20070210741A1
公开(公告)日：2007-09-13
申请号：US11626941
申请日：2007-01-25
申请人： Koichiro Nagata , Toshiaki Okuyama , Kouki Yamamoto , Hiroyuki Tomita
发明人： Koichiro Nagata , Toshiaki Okuyama , Kouki Yamamoto , Hiroyuki Tomita
IPC分类号： H02P27/04
CPC分类号： H02P21/09 , H02P23/20 , H02P29/032
摘要： An object of the present invention is to provide a driver for an induction motor which performs an operation at an acceleration suitable for the magnitude of a load and is excellent in efficiency, without an acceleration failure.The driver for an induction motor includes a slip frequency estimate value arithmetic operation section 15 for arithmetically operating a slip frequency ωŝ of an induction motor 12, and a maximum torque generation slip arithmetic operation section 16 for arithmetically operating a slip frequency ωsmax at which a maximum torque is generated. When the slip frequency ωŝ exceeds a predetermined value ωsmaxTH(=0.96ωsmax, etc.) corresponding to the slip frequency ωsmax at which the maximum torque is generated, a speed change rate arithmetic operation section 17 and a speed change rate correcting section 18 reduce a rate of increase in a speed command ωr*.In addition, when the slip frequency approaches the maximum torque generation slip frequency too closely, the load concerned is judged to be overloaded, and an alarm is generated.
摘要翻译：本发明的目的是提供一种用于感应电动机的驱动器，其以适合于负载大小的加速度进行操作，并且效率优异，而没有加速失效。用于感应电动机的驱动器包括用于算术地操作感应电动机12的转差频率ω的滑差频率估计值算术运算部分15和用于对运算频率ωmax进行运算的最大转矩产生滑差算术运算部分16，产生扭矩。当滑差频率ωi超过与产生最大转矩的转差频率ωmax最大相对应的预定值ωmaxmax（=0.96ωmaxmax等）时，变速率算术运算部分17和变速率校正部分18减少速度指令omega *的增加速度。此外，当滑差频率接近最大转矩产生滑差频率时，判断为负载过大，产生报警。

10. 发明授权

US07545116B2 Driver for induction motor and method of driving the same 有权
标题翻译：感应电动机驱动器及其驱动方法
公开(公告)号：US07545116B2
公开(公告)日：2009-06-09
申请号：US11626941
申请日：2007-01-25
申请人： Koichiro Nagata , Toshiaki Okuyama , Kouki Yamamoto , Hiroyuki Tomita
发明人： Koichiro Nagata , Toshiaki Okuyama , Kouki Yamamoto , Hiroyuki Tomita
IPC分类号： H02P27/04
CPC分类号： H02P21/09 , H02P23/20 , H02P29/032
摘要： An object of the present invention is to provide a driver for an induction motor which performs an operation at an acceleration suitable for the magnitude of a load and is excellent in efficiency, without an acceleration failure. The driver for an induction motor includes a slip frequency estimate value arithmetic operation section 15 for arithmetically operating a slip frequency ωs^ of an induction motor 12, and a maximum torque generation slip arithmetic operation section 16 for arithmetically operating a slip frequency ωsmax at which a maximum torque is generated. When the slip frequency ωs^ exceeds a predetermined value ωsmaxTH (=0.9 ωsmax, etc.) corresponding to the slip frequency ωsmax at which the maximum torque is generated, a speed change rate arithmetic operation section 17 and a speed change rate correcting section 18 reduce a rate of increase in a speed command ωr*. In addition, when the slip frequency approaches the maximum torque generation slip frequency too closely, the load concerned is judged to be overloaded, and an alarm is generated.
摘要翻译：本发明的目的是提供一种用于感应电动机的驱动器，其以适合于负载大小的加速度进行操作，并且效率优异，而没有加速失效。用于感应电动机的驱动器包括用于算术地操作感应电动机12的转差频率ω的滑差频率估计值算术运算部15和用于算术运算转差频率ωmaxmax的最大转矩产生滑差算术运算部16，产生最大扭矩。当滑差频率ωmax超过与产生最大转矩的转差频率ωmax最大对应的预定值ωmaxmax（=0.9ωmaxmax等）时，速度变换率算术运算部17和变速率校正部18减少速度指令ω*的增加率。此外，当滑差频率接近最大转矩产生滑差频率时，判断为负载过大，产生报警。

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