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1. 发明申请

US20080061726A1 Control device for synchronous motor 有权
标题翻译：同步电机控制装置
公开(公告)号：US20080061726A1
公开(公告)日：2008-03-13
申请号：US11895406
申请日：2007-08-23
申请人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa , Junnosuke Nakatsugawa
发明人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa , Junnosuke Nakatsugawa
IPC分类号： H02P6/08
CPC分类号： H02P6/10 , H02P21/05
摘要： A control technology for a synchronous motor for suppressing rotational pulsation caused by variation in individuals without making a control algorithm complex is provided. In a motor drive system which is a control device for a synchronous motor, in order to suppress the pulsation component of N times as high as the AC frequency for driving the synchronous motor, a controller in which the phase property of the disturbance response of the controller with respect to the pulsation frequency is within ±45° is arranged. Therefore, the torque pulsation component generated from distortion in induction voltage or variation between phases is suppressed.
摘要翻译：提供了一种用于抑制由个体变化引起的旋转脉动的同步电机的控制技术，而不使控制算法复杂化。在作为同步电动机的控制装置的电动机驱动系统中，为了抑制用于驱动同步电动机的交流频率的N倍的脉动分量，控制器将其中的干扰响应的相位特性相对于脉动频率的控制器设置在±45°以内。因此，抑制了感应电压的变形或相位的变化而产生的转矩脉动成分。

2. 发明申请

US20110074324A1 Control Device for Synchronous Motor 失效
标题翻译：同步电机控制装置
公开(公告)号：US20110074324A1
公开(公告)日：2011-03-31
申请号：US12963392
申请日：2010-12-08
申请人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa , Junnosuke Nakatsugawa
发明人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa , Junnosuke Nakatsugawa
IPC分类号： H02P6/10
CPC分类号： H02P6/10 , H02P21/05
摘要： A control technology for a synchronous motor for suppressing rotational pulsation caused by variation in individuals without making a control algorithm complex is provided. In a motor drive system which is a control device for a synchronous motor, in order to suppress the pulsation component of N times as high as the AC frequency for driving the synchronous motor, a controller in which the phase property of the disturbance response of the controller with respect to the pulsation frequency is within ±45° is arranged. Therefore, the torque pulsation component generated from distortion in induction voltage or variation between phases is suppressed.
摘要翻译：提供了一种用于抑制由个体变化引起的旋转脉动的同步电机的控制技术，而不使控制算法复杂化。在作为同步电动机的控制装置的电动机驱动系统中，为了抑制用于驱动同步电动机的交流频率的N倍的脉动分量，控制器将其中的干扰响应的相位特性相对于脉动频率的控制器设置在±45°以内。因此，抑制了感应电压的变形或相位的变化而产生的转矩脉动成分。

3. 发明授权

US08362727B2 Control device for synchronous motor 失效
标题翻译：同步电机控制装置
公开(公告)号：US08362727B2
公开(公告)日：2013-01-29
申请号：US12963392
申请日：2010-12-08
申请人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa , Junnosuke Nakatsugawa
发明人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa , Junnosuke Nakatsugawa
IPC分类号： H02P6/10
CPC分类号： H02P6/10 , H02P21/05
摘要： A control technology for a synchronous motor for suppressing rotational pulsation caused by variation in individuals without making a control algorithm complex is provided. In a motor drive system which is a control device for a synchronous motor, in order to suppress the pulsation component of N times as high as the AC frequency for driving the synchronous motor, a controller in which the phase property of the disturbance response of the controller with respect to the pulsation frequency is within ±45° is arranged. Therefore, the torque pulsation component generated from distortion in induction voltage or variation between phases is suppressed.
摘要翻译：提供了一种用于抑制由个体变化引起的旋转脉动的同步电机的控制技术，而不使控制算法复杂化。在作为同步电动机的控制装置的电动机驱动系统中，为了抑制用于驱动同步电动机的交流频率的N倍的脉动分量，控制器将其中的干扰响应的相位特性相对于脉动频率的控制器设置在±45°以内。因此，抑制了感应电压的变形或相位的变化而产生的转矩脉动成分。

4. 发明授权

US07859209B2 Control device for synchronous motor 有权
标题翻译：同步电机控制装置
公开(公告)号：US07859209B2
公开(公告)日：2010-12-28
申请号：US11895406
申请日：2007-08-23
申请人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa , Junnosuke Nakatsugawa
发明人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa , Junnosuke Nakatsugawa
IPC分类号： H02P6/10
CPC分类号： H02P6/10 , H02P21/05
摘要： A control technology for a synchronous motor for suppressing rotational pulsation caused by variation in individuals without making a control algorithm complex is provided. In a motor drive system which is a control device for a synchronous motor, in order to suppress the pulsation component of N times as high as the AC frequency for driving the synchronous motor, a controller in which the phase property of the disturbance response of the controller with respect to the pulsation frequency is within ±45° is arranged. Therefore, the torque pulsation component generated from distortion in induction voltage or variation between phases is suppressed.
摘要翻译：提供了一种用于抑制由个体变化引起的旋转脉动的同步电机的控制技术，而不使控制算法复杂化。在作为同步电动机的控制装置的电动机驱动系统中，为了抑制用于驱动同步电动机的交流频率的N倍的脉动分量，控制器将其中的干扰响应的相位特性相对于脉动频率的控制器设置在±45°以内。因此，抑制了感应电压的变形或相位的变化而产生的转矩脉动成分。

5. 发明授权

US08258732B2 Drive system of synchronous motor 失效
标题翻译：同步电机驱动系统
公开(公告)号：US08258732B2
公开(公告)日：2012-09-04
申请号：US12367036
申请日：2009-02-06
申请人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa
发明人： Yoshitaka Iwaji , Yasuhiko Kokami , Minoru Kurosawa
IPC分类号： H02P6/04 , H02P6/00 , H02P6/18
CPC分类号： H02P6/20
摘要： A drive system of a permanent magnet motor is constituted of a mode switching trigger generator which monitors a state of a permanent magnet motor and issues a mode switching trigger, a conduction mode determining unit which receives the mode switching trigger and switches the mode of the permanent magnet motor, and a PWM generator which outputs a PWM signal to an inverter in accordance with the output of the conduction mode determining unit. The mode switching trigger is generated on condition that the speed electromotive force of the permanent magnet motor exceeds a constant or variable threshold value.
摘要翻译：永磁电动机的驱动系统由监视永磁电动机的状态并发出模式切换触发的模式切换触发发生器构成，导通模式确定单元接收模式切换触发并切换永久磁铁的模式磁电机和PWM发生器，其根据导通模式确定单元的输出将PWM信号输出到逆变器。在永磁电动机的速度电动势超过常数或可变阈值的条件下产生模式切换触发。

6. 发明申请

US20090200971A1 DRIVE SYSTEM OF SYNCHRONOUS MOTOR 失效
标题翻译：同步电机驱动系统
公开(公告)号：US20090200971A1
公开(公告)日：2009-08-13
申请号：US12367036
申请日：2009-02-06
申请人： Yoshitaka IWAJI , Yasuhiko Kokami , Minoru Kurosawa
发明人： Yoshitaka IWAJI , Yasuhiko Kokami , Minoru Kurosawa
IPC分类号： H02P6/20 , H02P6/18
CPC分类号： H02P6/20
摘要： A drive system of a permanent magnet motor is constituted of a mode switching trigger generator which monitors a state of a permanent magnet motor and issues a mode switching trigger, a conduction mode determining unit which receives the mode switching trigger and switches the mode of the permanent magnet motor, and a PWM generator which outputs a PWM signal to an inverter in accordance with the output of the conduction mode determining unit. The mode switching trigger is generated on condition that the speed electromotive force of the permanent magnet motor exceeds a constant or variable threshold value.
摘要翻译：永磁电动机的驱动系统由监视永磁电动机的状态并发出模式切换触发的模式切换触发发生器构成，导通模式确定单元接收模式切换触发并切换永久磁铁的模式磁电机和PWM发生器，其根据导通模式确定单元的输出将PWM信号输出到逆变器。在永磁电动机的速度电动势超过常数或可变阈值的条件下产生模式切换触发。

7. 发明申请

US20080143288A1 Synchronous motor control device 有权
标题翻译：同步电机控制装置
公开(公告)号：US20080143288A1
公开(公告)日：2008-06-19
申请号：US12001799
申请日：2007-12-12
申请人： Yoshitaka Iwaji , Junnosuke Nakatsugawa , Yasuhiko Kokami , Minoru Kurosawa
发明人： Yoshitaka Iwaji , Junnosuke Nakatsugawa , Yasuhiko Kokami , Minoru Kurosawa
IPC分类号： H02P27/08
CPC分类号： H02P6/10 , G11B19/28
摘要： Control technique of a synchronous motor capable of suppressing rotation pulsation caused by individual difference without complicating control algorithm is provided. A pulsation generator superimposing a pulsation component anticipated in advance to a current command for the synchronous motor and a correction current generator superimposing a correction signal substantially having an average value of zero to the current command are provided in a synchronous motor control device. By this configuration, the correction signal suppressing a distortion component is superimposed to a value of the current command with a simplified control configuration. Torque pulsation is suppressed by determining the correction signal from difference between a detection current and a command current.
摘要翻译：提供了能够抑制由个体差异引起的旋转脉动而不复杂的控制算法的同步电机的控制技术。在同步电动机控制装置中设置脉动发生器，该脉动发生器将预先预定的脉动分量叠加到同步电动机的电流指令，以及校正电流发生器将基本上具有平均值零的校正信号叠加到电流指令。通过这种配置，以简化的控制配置将抑制失真分量的校正信号叠加到当前命令的值。通过从检测电流和指令电流之间的差确定校正信号来抑制扭矩脉动。

8. 发明授权

US08232751B2 Drive system of synchronous motor 失效
标题翻译：同步电机驱动系统
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。

9. 发明授权

US07847500B2 Synchronous motor control device 有权
标题翻译：同步电机控制装置
公开(公告)号：US07847500B2
公开(公告)日：2010-12-07
申请号：US12001799
申请日：2007-12-12
申请人： Yoshitaka Iwaji , Junnosuke Nakatsugawa , Yasuhiko Kokami , Minoru Kurosawa
发明人： Yoshitaka Iwaji , Junnosuke Nakatsugawa , Yasuhiko Kokami , Minoru Kurosawa
IPC分类号： H02P7/00
CPC分类号： H02P6/10 , G11B19/28
摘要： Control technique of a synchronous motor capable of suppressing rotation pulsation caused by individual difference without complicating control algorithm is provided. A pulsation generator superimposing a pulsation component anticipated in advance to a current command for the synchronous motor and a correction current generator superimposing a correction signal substantially having an average value of zero to the current command are provided in a synchronous motor control device. By this configuration, the correction signal suppressing a distortion component is superimposed to a value of the current command with a simplified control configuration. Torque pulsation is suppressed by determining the correction signal from difference between a detection current and a command current.
摘要翻译：提供了能够抑制由个体差异引起的旋转脉动而不复杂的控制算法的同步电动机的控制技术。在同步电动机控制装置中设置脉动发生器，该脉动发生器将预先预定的脉动分量叠加到同步电动机的电流指令，以及校正电流发生器将基本上具有平均值零的校正信号叠加到电流指令。通过这种配置，以简化的控制配置将抑制失真分量的校正信号叠加到当前命令的值。通过从检测电流和指令电流之间的差确定校正信号来抑制扭矩脉动。

10. 发明申请

US20050036228A1 Magnetic disk storage apparatus 审中-公开
标题翻译：磁盘存储装置
公开(公告)号：US20050036228A1
公开(公告)日：2005-02-17
申请号：US10948220
申请日：2004-09-24
申请人： Reiichi Kimura , Yasuhiko Kokami , Kunihiro Kawauchi , Minoru Kurosawa , Kichiya Itagaki
发明人： Reiichi Kimura , Yasuhiko Kokami , Kunihiro Kawauchi , Minoru Kurosawa , Kichiya Itagaki
IPC分类号： G11B19/28 , G11B19/20 , G11B19/247 , H02P6/00 , H02P6/08 , H02P6/18 , G11B15/46
CPC分类号： G11B19/20 , G11B19/247 , H02P6/08 , H02P6/28
摘要： Currents of sine waveforms can be fed through coils by a relatively small-sized circuit, and thereby, highly dense magnetic storage can be realized with less rotation variations and a driving control circuit of a motor rotating at a low noise level can be provided. A coil of one phase of a three-phase brushless motor is driven with full amplitude at which an applied voltage becomes equal to a source voltage, and a coil of one of other phases is driven with gradually changing voltages so that a current of sine waveform is delivered, and a coil of the remaining phase is driven by feedback control so that a total current flowing through all coils becomes a predetermined current value.
摘要翻译：正弦波形的电流可以通过相对较小尺寸的电路通过线圈馈送，从而可以以较小的旋转变化实现高度密集的磁存储，并且可以提供以低噪声水平旋转的电动机的驱动控制电路。三相无刷电动机的一相线圈以全幅度驱动，施加的电压等于源电压，并且其中一相的线圈以逐渐变化的电压驱动，使得正弦波形的电流并且通过反馈控制驱动剩余相的线圈，使得流过所有线圈的总电流成为预定电流值。

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