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21. 发明申请

US20080258662A1 POWER CONVERSION SYSTEM AND POWER CONVERSION CONTROL METHOD 有权
标题翻译：功率转换系统和功率转换控制方法
公开(公告)号：US20080258662A1
公开(公告)日：2008-10-23
申请号：US11876971
申请日：2007-10-23
申请人： Sho SATO , Kantaro YOSHIMOTO , Kengo MAIKAWA , Yuki NAKAJIMA
发明人： Sho SATO , Kantaro YOSHIMOTO , Kengo MAIKAWA , Yuki NAKAJIMA
IPC分类号： H02P27/08
CPC分类号： H02J1/102 , H02J3/38 , Y10T307/50
摘要： A power conversion system includes first and second voltage sources for driving a multiple-phase AC motor and a control unit. The control unit is configured to compute first and second output voltage command values used to drive the multiple-phase AC motor based on a first output voltage command vector corresponding to the voltage source that is charged and a second output voltage command vector corresponding to the voltage source that is discharged. The first and second output voltage command vectors are determined so that a resultant vector of the first and second output voltage command vectors is coincident with a motor voltage command vector corresponding to a motor voltage command value, and a motor current command vector corresponding to the motor current command value is positioned within an included angle formed between the second output voltage command vector and a negative vector of the first output voltage command vector.
摘要翻译：电力转换系统包括用于驱动多相交流电动机和控制单元的第一和第二电压源。控制单元被配置为基于与被充电的电压源相对应的第一输出电压命令矢量和对应于电压的第二输出电压指令矢量来计算用于驱动多相AC电动机的第一和第二输出电压指令值消息来源。确定第一和第二输出电压指令矢量，使得第一和第二输出电压指令矢量的合成矢量与对应于电动机电压指令值的电动机电压指令矢量和对应于电动机的电动机电流指令矢量一致电流指令值位于形成在第二输出电压指令矢量与第一输出电压指令矢量的负向量之间的夹角内。

22. 发明申请

US20060273748A1 Electrical power converter and control method 有权
公开(公告)号：US20060273748A1
公开(公告)日：2006-12-07
申请号：US11444161
申请日：2006-05-31
申请人： Kantaro Yoshimoto , Yasuhiko Kitajima , Kengo Maikawa
发明人： Kantaro Yoshimoto , Yasuhiko Kitajima , Kengo Maikawa
IPC分类号： H02P7/00
CPC分类号： H02M7/5388 , B60L15/025 , B60L2210/10 , H02M7/483 , H02M7/53875 , H02P21/16 , Y02T10/643 , Y02T10/7216
摘要： An electrical power converter comprises a first direct current line connected to a first direct current source, a second direct current line connected to a second direct current source, an alternating current line connected to an alternating current motor, a controller, and a pulse generator. The controller determines a required torque of the alternating current motor. The controller also determines a voltage command value that substantially minimizes a copper loss of the alternating current motor while providing the required torque of the alternating current motor. The pulse generator generates an output voltage according to the voltage command value at the alternating current output.

23. 发明授权

US07122991B2 Power conversion and vehicle 有权
公开(公告)号：US07122991B2
公开(公告)日：2006-10-17
申请号：US11174643
申请日：2005-07-06
申请人： Yasuhiko Kitajima , Kantaro Yoshimoto , Masanori Yamagiwa , Ryuuta Yamaguchi , Yutaka Tajima , Yasuaki Hayami
发明人： Yasuhiko Kitajima , Kantaro Yoshimoto , Masanori Yamagiwa , Ryuuta Yamaguchi , Yutaka Tajima , Yasuaki Hayami
IPC分类号： H02P27/04
CPC分类号： B60K6/46 , B60K6/26 , B60L11/005 , B60L11/14 , B60L11/1812 , B60L11/1853 , B60L11/1868 , B60L11/1887 , B60L11/1892 , B60L15/20 , B60L2210/10 , B60L2210/40 , B60L2240/421 , B60L2240/423 , H02J2001/004 , H02M7/483 , H02M7/5388 , Y02T10/6217 , Y02T10/645 , Y02T10/70 , Y02T10/7022 , Y02T10/7066 , Y02T10/7072 , Y02T10/7077 , Y02T10/7216 , Y02T10/7241 , Y02T10/7275 , Y02T90/127 , Y02T90/14 , Y02T90/34
摘要： A power conversion system for converting a dc voltage to a pulsed ac voltage includes a dc voltage source providing three or more electric potentials, and a switching circuit arranged to connect one of the potentials selectively to an output terminal. A controller produces a pulsed ac output voltage at the output terminal from the potentials of the dc voltage source by controlling an on time for connecting each of the potentials to the output terminal.

24. 发明申请

US20060006832A1 Power conversion and vehicle 有权
标题翻译：电力转换和车辆
公开(公告)号：US20060006832A1
公开(公告)日：2006-01-12
申请号：US11174643
申请日：2005-07-06
申请人： Yasuhiko Kitajima , Kantaro Yoshimoto , Masanori Yamagiwa , Ryuuta Yamaguchi , Yutaka Tajima , Yasuaki Hayami
发明人： Yasuhiko Kitajima , Kantaro Yoshimoto , Masanori Yamagiwa , Ryuuta Yamaguchi , Yutaka Tajima , Yasuaki Hayami
IPC分类号： H02M5/42
CPC分类号： B60K6/46 , B60K6/26 , B60L11/005 , B60L11/14 , B60L11/1812 , B60L11/1853 , B60L11/1868 , B60L11/1887 , B60L11/1892 , B60L15/20 , B60L2210/10 , B60L2210/40 , B60L2240/421 , B60L2240/423 , H02J2001/004 , H02M7/483 , H02M7/5388 , Y02T10/6217 , Y02T10/645 , Y02T10/70 , Y02T10/7022 , Y02T10/7066 , Y02T10/7072 , Y02T10/7077 , Y02T10/7216 , Y02T10/7241 , Y02T10/7275 , Y02T90/127 , Y02T90/14 , Y02T90/34
摘要： A power conversion system for converting a dc voltage to a pulsed ac voltage includes a dc voltage source providing three or more electric potentials, and a switching circuit arranged to connect one of the potentials selectively to an output terminal. A controller produces a pulsed ac output voltage at the output terminal from the potentials of the dc voltage source by controlling an on time for connecting each of the potentials to the output terminal.
摘要翻译：用于将直流电压转换为脉冲交流电压的电力转换系统包括提供三个或更多个电位的直流电压源，以及布置成将电位中的一个选择性地连接到输出端子的开关电路。控制器通过控制将每个电位连接到输出端的导通时间从直流电压源的电位在输出端产生脉冲交流输出电压。

25. 发明授权

US06727675B2 Motor control apparatus and motor control method 有权
标题翻译：电机控制装置及电机控制方式
公开(公告)号：US06727675B2
公开(公告)日：2004-04-27
申请号：US10229133
申请日：2002-08-28
申请人： Kantaro Yoshimoto , Yasuhiko Kitajima
发明人： Kantaro Yoshimoto , Yasuhiko Kitajima
IPC分类号： H02P146
CPC分类号： H02P6/10 , H02P21/22
摘要： A motor control apparatus comprises a fundamental current control device that controls a fundamental current in a 3-phase AC motor in an orthogonal coordinate system constituted of a d-axis and a q-axis rotating in synchronization with the rotation of the 3-phase AC motor, a higher harmonic current control device that controls a higher harmonic current in the motor in an orthogonal coordinate system constituted of a dh-axis and a qh-axis rotating at a frequency that is an integral multiple of the frequency of the fundamental component of the current flowing to the motor, an estimating device that estimates the level of the harmonic speed electromotive force in the motor in the dhqh-axis coordinate system and a compensating device that compensates the harmonic speed electromotive force estimated by the estimating device.
摘要翻译：电动机控制装置包括基本电流控制装置，该三相交流电动机的三相交流电动机的基本电流与由三相交流电动机的转动同步旋转的与d轴和q轴构成的正交坐标系电动机，高次谐波电流控制装置，其以正交坐标系统控制电动机中的高次谐波电流，所述正交坐标系由dh轴和qh轴组成，频率以基本分量的频率的整数倍的频率旋转流向电动机的电流，估计在dhqh轴坐标系中的电动机中的谐波速度电动势的水平的估计装置和补偿由估计装置估计的谐波速度电动势的补偿装置。

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