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1. 发明专利

JP2012157205A Magnetic gear 有权
标题翻译：磁齿轮
公开(公告)号：JP2012157205A
公开(公告)日：2012-08-16
申请号：JP2011015896
申请日：2011-01-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKATSUGAWA JUNNOSUKE , ENOMOTO YUJI , TOKOI HIROYOSHI , MORITA YUTAKA , IWASAKI NORIHISA
IPC分类号： H02N15/00 , F16D7/02 , F16H49/00
CPC分类号： H02K49/102
摘要： PROBLEM TO BE SOLVED: To provide a magnetic gear capable of improving strength of a magnetic pole piece and reducing loss while keeping a torque transmission property.SOLUTION: To achieve the purpose described above, a magnetic gear is provided with, for example, a first permanent magnet field having plural permanent magnet poles, a second permanent magnet field having plural permanent magnet poles whose number of poles is different from that of the first permanent magnet field, a modulation magnetic pole that has plural magnetic pole pieces between the first and second permanent magnet fields and modulates the number of poles of the first and second permanent magnet fields. A non-magnetic bar is provided between the plural magnetic pole pieces, one end of the non-magnetic bar is connected with a first non-magnetic end holding member, and the other end of the non-magnetic bar is electrically insulated from a second non-magnetic end holding member.
摘要翻译：要解决的问题：提供一种能够提高磁极片的强度并且在保持转矩传递特性的同时减小损耗的磁齿轮。解决方案：为了实现上述目的，磁齿轮设置有例如具有多个永久磁极的第一永久磁场，具有多个极数不同的永久磁极的第二永久磁场第一永久磁场的调制磁极，在第一永久磁铁和第二永久磁场之间具有多个磁极片，并且调制第一和第二永久磁场的极数。在多个磁极片之间设置非磁性棒，非磁性棒的一端与第一非磁性端部保持构件连接，非磁性棒的另一端与第二非磁性棒的第二非磁性端部保持构件。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2011155720A Totally enclosed motor 有权
标题翻译：全封闭电机
公开(公告)号：JP2011155720A
公开(公告)日：2011-08-11
申请号：JP2010013822
申请日：2010-01-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MATSUMOTO KEIKI , OTAKE ATSUSHI , MORITA YUTAKA , KUSUKAWA JUNPEI , KOBAYASHI KINYA , NAKATSUGAWA JUNNOSUKE
IPC分类号： H02K9/06 , H02K1/20 , H02K1/32
CPC分类号： H02K9/08 , H02K1/32 , H02K9/14
摘要： PROBLEM TO BE SOLVED: To provide a totally enclosed motor that has high performance of cooling, even if miniaturized. SOLUTION: The totally enclosed motor which includes a rotor 1 disposed inside a housing 5 to transfer heat to the housing 5, a stator 2 disposed inside the housing to transfer heat to the housing, and an inner fin 6 which is disposed in the rotor 1 and agitates air inside the housing 5. The totally enclosed motor Z is cooled by a forced convection by an outer fan 8 disposed outside the housing 5, or by a natural convention in the vicinity of an outer surface of the housing 5, and a shape of the rotor 1 is different between one end side and the other end side of the rotor in an extending direction of a rotary shaft 3 of the rotor. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使是小型化，也可提供具有高冷却性能的全封闭式电动机。解决方案：包括设置在壳体5内部以将热量传递到壳体5的转子1的全封闭马达，设置在壳体内部以将热量传递到壳体的定子2和布置在壳体5中的内翅片6 转子1并搅动壳体5内的空气。全封闭马达Z被外壳8外部的外风扇8的强制对流冷却，或通过外壳5的外表面附近的自然惯例来冷却，并且转子1的形状在转子的旋转轴3的延伸方向上的一端侧和另一端侧之间不同。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2011243126A Optimum design system of electromagnetic equipment 有权
标题翻译：电磁设备最优设计系统
公开(公告)号：JP2011243126A
公开(公告)日：2011-12-01
申请号：JP2010116855
申请日：2010-05-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KITAMURA HIDEKI , IWASAKI NORIHISA , KITAMURA MASASHI , ENOMOTO YUJI , NAKATSUGAWA JUNNOSUKE
IPC分类号： G06F17/50
CPC分类号： Y02T10/82
摘要： PROBLEM TO BE SOLVED: To provide an optimum design system of an electric motor for executing at a high speed an optimum design method in which plural analysis methods are coupled.SOLUTION: The optimum design system comprises an objective function calculation unit for receiving a pair of design variables and calculating a function value based on the pair of the design variables and outputting it, and optimum means for searching for a pair of the design variables having a local minimum function value and a local maximum function value. In this optimum design system, the objective function calculation unit can input, in a history file, physical values such as size data and physical property values regarding an electromagnetic equipment and has a function of writing latest physical property values calculated by reflecting the physical property values, and the optimum means relies on an algorithm of a direct search method.
摘要翻译：要解决的问题：为了提供一种用于高速执行的电动机的最佳设计系统，其中耦合有多种分析方法的最佳设计方法。解决方案：最佳设计系统包括一个目标函数计算单元，用于接收一对设计变量，并基于一对设计变量计算一个函数值并输出它，以及用于搜索一对设计的最佳方法变量具有局部最小函数值和局部最大函数值。在该最佳设计系统中，目标函数计算单元可以在历史文件中输入关于电磁设备的诸如尺寸数据和物理属性值的物理值，并且具有写入通过反映物理属性值而计算出的最新物理属性值的功能，最优手段依赖于直接搜索法的算法。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2008086129A Ac motor controller and constant measurement apparatus 审中-公开
标题翻译：交流电机控制器和恒定测量装置
公开(公告)号：JP2008086129A
公开(公告)日：2008-04-10
申请号：JP2006263723
申请日：2006-09-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKATSUGAWA JUNNOSUKE , IWAJI YOSHITAKA , TOBARI KAZUAKI
IPC分类号： H02P21/00 , G01R31/34 , H02P27/04
CPC分类号： H02P21/06 , H02P21/14 , H02P21/22 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To provide an AC motor controller and, in particular, a controller and a constant measurement apparatus measuring inductance as one of electrical constants of an AC motor with high accuracy and using the measurement result for control. SOLUTION: This AC motor controller includes a means for supplying composite current obtained by superimposing alternating current on direct current from an inverter and for continuously or discontinuously changing a DC component of the composite current. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种AC电动机控制器，特别是一种将电感测量为具有高精度的AC电动机的电常数的控制器和恒定测量装置，并使用测量结果进行控制。解决方案：该交流电动机控制器包括用于提供通过将来自逆变器的直流电流叠加交流电并且连续或不连续地改变复合电流的直流分量的复合电流的装置。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2004120841A Controller for ac motor, semiconductor device 有权
公开(公告)号：JP2004120841A
公开(公告)日：2004-04-15
申请号：JP2002278319
申请日：2002-09-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKATSUGAWA JUNNOSUKE , OURA HITOSHI , TANAKA TAKASHI , ENDO TSUNEHIRO , KAWABATA YUKIO
IPC分类号： H02P6/08 , H02P6/10 , H02P29/00
CPC分类号： H02P6/10 , H02P29/50 , H02P2209/07
摘要： PROBLEM TO BE SOLVED: To provide an AC motor driving circuit which can reduce torque pulsation with a relatively simple circuit. SOLUTION: This controller makes a plurality of trapezoidal wave signals which have at least two or more fixed levels based on the magnetic pole signal of a motor, makes a false signal sine wave signal in a false sine wave modulator from these plural trapezoidal wave signals, and compares the false sine wave signal with carriers so as to PWM-control an inverter. It is possible to make a modulated wave signal extremely small in waveform distortion using a relatively simple circuit, whereby this can suppress the vibration and noise of the motor caused by torque pulsation low. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2010239730A Device for controlling ac motor, and ac motor drive system 有权
标题翻译：用于控制交流电机的装置和交流电动机驱动系统
公开(公告)号：JP2010239730A
公开(公告)日：2010-10-21
申请号：JP2009083995
申请日：2009-03-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGURA HIROKAZU , IWAJI YOSHITAKA , NAKATSUGAWA JUNNOSUKE , IWASAKI NORIHISA
IPC分类号： H02P21/00 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To provide an AC motor control device and an AC motor drive system in consideration of a non-linear characteristic due to magnetic circuit saturation suitable for especially a permanent magnet synchronous motor. SOLUTION: In the control device of the AC motor for controlling an output voltage of a power converter driving the AC motor, the control device generates a voltage command value to the power converter, which is defined on one shaft of two control shafts orthogonal in a rotary coordinate system of the motor by using information on both a deviation between a current command value and a current detection value, which are defined on the same shaft, and a deviation between a current command value and a current detection value, which are defined on the other shaft. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：考虑到由于特别是永磁同步电动机的磁路饱和而引起的非线性特性，提供一种交流电动机控制装置和交流电动机驱动系统。解决方案：在用于控制驱动交流电动机的功率转换器的输出电压的交流电动机的控制装置中，控制装置对功率转换器产生电压指令值，功率转换器限定在两个控制轴的一个轴上通过使用在同一轴上限定的电流指令值和电流检测值之间的偏差的信息以及电流指令值与电流检测值之间的偏差的信息，在电动机的旋转坐标系中正交，被定义在另一个轴上。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2005261093A Control device of ac motor, two-chip inverter and one-chip inverter 有权
标题翻译：交流电机，双芯片逆变器和一芯片逆变器的控制装置
公开(公告)号：JP2005261093A
公开(公告)日：2005-09-22
申请号：JP2004069936
申请日：2004-03-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKATSUGAWA JUNNOSUKE , TANAKA TAKASHI , SAKURAI KENJI , ENDO TSUNEHIRO
IPC分类号： H02M1/12 , H02M7/48 , H02P6/06 , H02P6/08
CPC分类号： H02P6/10 , H02P6/182 , H02P27/08
摘要： PROBLEM TO BE SOLVED: To provide a control device of an AC motor that can reduce torque pulsation by a comparatively simple circuit adapted to a high withstand voltage, and can highly efficiently drive the motor even if a rotational speed and a load are changed, and a semiconductor device. SOLUTION: A first phase signal wherein an induction voltage of the motor and a relative phase are fixed and a current polarity signal of the motor are detected, a phase difference between the signals is recognized, a second phase signal is generated so that the phase difference approximates zero at which the motor can highly efficiently be driven, a modulated wave signal of a pseudo sine wave state or a trapezoidal wave state is generated on the basis of the second phase signal, the modulated wave signal and a transfer wave signal are compared, and an inverter is PWM-controlled. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种交流电动机的控制装置，其可以通过适用于高耐受电压的相对简单的电路来减小转矩脉动，并且可以高效地驱动电动机，即使转速和负载是改变了半导体器件。解决方案：第一相位信号，其中电动机的感应电压和相对相位是固定的，并且电动机的电流极性信号被检测到，信号之间的相位差被识别，产生第二相位信号，使得基于第二相位信号，调制波信号和转移波信号，产生相位差近似于电动机高效驱动的零点，伪正弦波状态或梯形波状态的调制波信号并且逆变器被PWM控制。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2011050168A Device for controlling synchronous motor 有权
标题翻译：用于控制同步电动机的装置
公开(公告)号：JP2011050168A
公开(公告)日：2011-03-10
申请号：JP2009196220
申请日：2009-08-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGURA HIROKAZU , IWAJI YOSHITAKA , NAKATSUGAWA JUNNOSUKE , IWASAKI NORIHISA
IPC分类号： H02P21/00 , H02P27/04
CPC分类号： H02P21/141 , H02P6/18 , H02P21/18 , H02P21/28
摘要： PROBLEM TO BE SOLVED: To provide a control device which performs speed/position sensorless control by only setting a several number of parameters even for a synchronous motor which is remarkable in the saturation of a magnetic flux and in which a large number of inter-axis mutual interference magnetic fluxes exist. SOLUTION: Non-linear functions of the magnetic flux and a current are prepared, and there is implemented an axial error estimation operation formula taking into consideration a magnetic flux saturation property which is extracted from these functions by formula deformation. The speed/position sensorless control based on high-accuracy magnetic pole position estimation becomes possible even for the permanent magnet synchronous motor which is remarkable in the saturation of the magnetic flux and in which the large number of inter-axis interference magnetic fluxes exist. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过仅设置若干数量的参数来进行速度/位置无传感器控制的控制装置，即使对于磁通饱和度显着的同步电动机也是如此，其中大量的存在轴间相互干扰磁通。解决方案：制备磁通和电流的非线性函数，并且考虑到通过公式变形从这些函数中提取的磁通饱和特性，实现了轴向误差估计运算公式。即使对于磁通饱和度大而且存在大量的轴间干涉磁通量的永磁同步电动机，也能够进行基于高精度磁极位置估计的速度/位置无传感器控制。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2008092657A Inductance identifying controller of permanent magnet motor and inverter module 有权
标题翻译：永磁电机和逆变器模块的电感识别控制器
公开(公告)号：JP2008092657A
公开(公告)日：2008-04-17
申请号：JP2006270255
申请日：2006-10-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TOBARI KAZUAKI , IWAJI YOSHITAKA , NAKATSUGAWA JUNNOSUKE
IPC分类号： H02P21/00 , H02P27/04 , H02P29/00
摘要： PROBLEM TO BE SOLVED: To provide a controller and an inverter module for achieving a high-accuracy and fast-response torque control by identifying an inductance value of a magnet motor. SOLUTION: The invention superimposes a high frequency rectangular wave signal on a current command value or a voltage command value. (1) If the high frequency rectangular wave signal is superimposed on the current instruction value, a rectangular wave signal component is extracted from a second current command value calculated so as to match a current detection value with a d-axis or q-axis current command value on which the rectangular wave signal is superimposed, a d-axis or q-axis inductance setting value is multiplied by a ratio of an absolute value of the extracted rectangular wave signal and an absolute value of the superimposed rectangular wave signal, and the inductance value of the motor is identified. (2) If the high frequency rectangular wave signal is superimposed on the voltage command value, the rectangular wave signal component is extracted from an absolute value of the rectangular wave signal superimposed on a d-axis or q-axis voltage command value and the current detection value, the absolute value of the extracted rectangular wave signal is divided, and the inductance value of the motor is identified. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于通过识别磁体电动机的电感值来实现高精度和快速响应的转矩控制的控制器和逆变器模块。解决方案：本发明将高频矩形波信号叠加在电流指令值或电压指令值上。（1）如果高频矩形波信号叠加在当前指令值上，则从计算出的第二电流指令值中提取出矩形波信号分量，以使电流检测值与d轴或q轴电流相匹配叠加矩形波信号的指令值，d轴或q轴电感设定值乘以提取的矩形波信号的绝对值与叠加的矩形波信号的绝对值的比值，并且识别电机的电感值。（2）如果将高频矩形波信号叠加在电压指令值上，则从叠加在d轴或q轴电压指令值上的矩形波信号的绝对值提取矩形波信号分量，检测值，提取的矩形波信号的绝对值被划分，并且识别电机的电感值。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2013011298A Magnetic gear mechanism 有权
标题翻译：磁齿轮机构
公开(公告)号：JP2013011298A
公开(公告)日：2013-01-17
申请号：JP2011143724
申请日：2011-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IWASAKI NORIHISA , ENOMOTO YUJI , NAKATSUGAWA JUNNOSUKE , KITAMURA MASAJI , KOBAYASHI KINYA , MATSUMOTO KEIKI
IPC分类号： F16H49/00 , F16D7/02
CPC分类号： H02K49/102
摘要： PROBLEM TO BE SOLVED: To simplify the assembly of a magnetic flux modulating section in a magnetic gear mechanism, and to improve the strength thereof, in the magnetic gear mechanism.SOLUTION: In the magnetic flux modulating section 1, which is formed of a magnetic member and a non-magnetic member, of the magnetic gear mechanism, a piece of the magnetic member 1a and a piece of the non-magnetic member 1b are separately produced. The piece of the magnetic member 1a is sandwiched between circumferential projections provided in pieces of the non-magnetic member 1b, and the magnetic member and the non-magnetic member and bearing holding sections 2 and 3 form a structure in which the magnetic member and the non-magnetic member are fitted into the bearing holding sections by using recessed portions 2a and 2b provided in the bearing holding sections and axial projections 1-2b provided in the pieces of the non-magnetic member 1b. This structure simplifies production and improves strength.
摘要翻译：要解决的问题：为了简化磁齿轮机构中的磁通量调节部的组装，并提高其在磁齿轮机构中的强度。解决方案：在由磁性构件和非磁性构件形成的磁通量调节部分1中的磁性齿轮机构的磁性构件1a和非磁性构件1b的一块分别生产。磁性构件1a的一部分被夹在设置在非磁性构件1b的片之间的周向突起之间，并且磁性构件和非磁性构件以及轴承保持部分2和3形成磁性构件和非磁性构件通过设置在轴承保持部中的凹部2a和2b以及设置在非磁性构件1b的片中的轴向突起1-2b而装配到轴承保持部中。该结构简化了生产并提高了强度。版权所有（C）2013，JPO＆INPIT

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