会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Reluctance motors
    • 磁阻电机
    • US06351053B1
    • 2002-02-26
    • US09159933
    • 1998-09-24
    • Norimoto MinoshimaYasuharu Odachi
    • Norimoto MinoshimaYasuharu Odachi
    • H02K100
    • H02K19/103
    • A reluctance motor is described in which stator coils are driven with sinusoidal, or substantially sinusoidal, waveforms. Preferably, the spread angle of the stator poles is less that the spread angle of the rotor poles. More preferably, the spread angles of the stator poles &thgr;S and the rotor poles &thgr;r are set such that &thgr;S is approximately equal to 2&pgr;/(m·Nr) and &thgr;r is about (&thgr;S+&pgr;/Nr)/2≦&thgr;r≦(&pgr;/Nr), respectively, wherein Nr is the number rotor poles and m is the number of phases of electric current. By supplying a sinusoidal, or substantially sinusoidal-like, driving waveform to the stator coils, torque becomes relatively constant and does not depend on the angular position of rotation of the rotor. Therefore, torque ripple is effectively decreased.
    • 描述了一种磁阻电动机,其中定子线圈以正弦或基本正弦波形驱动。 优选地,定子极的扩展角小于转子极的扩展角。 更优选地,定子极点θS和转子极点的扩展角度被设置为使得θS近似等于2pi /(m.Nr),并且tth约为(θS+ pi / Nr)/ 2 <= tt = (pi / Nr),其中Nr是转子极数,m是电流的相数。 通过向定子线圈提供正弦或基本正弦状的驱动波形,扭矩变得相对恒定,并且不依赖于转子的旋转角度位置。 因此,扭矩波动有效地降低。
    • 4. 发明授权
    • Rotary electric machine system
    • 旋转电机系统
    • US08742710B2
    • 2014-06-03
    • US13422184
    • 2012-03-16
    • Eiji YamadaKenji HiramotoHideo NakaiNorimoto Minoshima
    • Eiji YamadaKenji HiramotoHideo NakaiNorimoto Minoshima
    • H02P7/00
    • H02P27/08H02K19/10H02K19/26H02P2205/05H02P2209/13
    • A rotary electric machine system includes: a stator that has multi-phase stator coils and that generates stator magnetomotive forces based on respective stator currents having different phases supplied to the multi-phase stator coils; a rotor on which rotor coils are wound such that magnetic poles are formed by rotor currents generated in response to the stator magnetomotive forces generated by the stator; a regulating unit that regulates a flow direction of each of the rotor currents to one direction to thereby regulate a polarity of each of the magnetic poles; and a control unit that controls currents supplied to the stator coils on the basis of a target torque. The control unit superimposes a pulse on the stator currents to adjust the ratio of each of the stator currents and each of the rotor currents so as to minimize a copper loss in the stator and the rotor.
    • 一种旋转电机系统,包括:定子,具有多相定子线圈,并且基于各自提供给所述多相定子线圈的相位的相位不同的定子电流产生定子磁动势; 转子,其上缠绕有转子线圈,使得磁极由响应于由定子产生的定子磁通势产生的转子电流形成; 调节单元,其将每个转子电流的流动方向调节到一个方向,从而调节每个磁极的极性; 以及控制单元,其基于目标转矩来控制提供给定子线圈的电流。 控制单元在定子电流上叠加脉冲以调节每个定子电流和每个转子电流的比率,以便最小化定子和转子中的铜损耗。
    • 5. 发明申请
    • ROTARY ELECTRIC MACHINE SYSTEM
    • 旋转电机系统
    • US20120235621A1
    • 2012-09-20
    • US13422184
    • 2012-03-16
    • Eiji YamadaKenji HiramotoHideo NakaiNorimoto Minoshima
    • Eiji YamadaKenji HiramotoHideo NakaiNorimoto Minoshima
    • H02P23/14H02K19/28
    • H02P27/08H02K19/10H02K19/26H02P2205/05H02P2209/13
    • A rotary electric machine system includes: a stator that has multi-phase stator coils and that generates stator magnetomotive forces based on respective stator currents having different phases supplied to the multi-phase stator coils; a rotor on which rotor coils are wound such that magnetic poles are formed by rotor currents generated in response to the stator magnetomotive forces generated by the stator; a regulating unit that regulates a flow direction of each of the rotor currents to one direction to thereby regulate a polarity of each of the magnetic poles; and a control unit that controls currents supplied to the stator coils on the basis of a target torque. The control unit superimposes a pulse on the stator currents to adjust the ratio of each of the stator currents and each of the rotor currents so as to minimize a copper loss in the stator and the rotor.
    • 一种旋转电机系统,包括:定子,具有多相定子线圈,并且基于各自提供给所述多相定子线圈的相位的相位不同的定子电流产生定子磁动势; 转子,其上缠绕有转子线圈,使得磁极由响应于由定子产生的定子磁通势产生的转子电流形成; 调节单元,其将每个转子电流的流动方向调节到一个方向,从而调节每个磁极的极性; 以及控制单元,其基于目标转矩来控制提供给定子线圈的电流。 控制单元在定子电流上叠加脉冲以调节每个定子电流和每个转子电流的比率,以便最小化定子和转子中的铜损耗。
    • 9. 发明授权
    • Rotating electrical machine system
    • 旋转电机系统
    • US08680801B2
    • 2014-03-25
    • US13428265
    • 2012-03-23
    • Eiji YamadaKenji HiramotoHideo NakaiNorimoto Minoshima
    • Eiji YamadaKenji HiramotoHideo NakaiNorimoto Minoshima
    • G05B5/00
    • H02P29/032H02P25/024H02P29/66
    • A rotating electrical machine system includes a stator that has stator windings of a plurality of phases, and that generates a stator magnetomotive force in accordance with stator current of different phases, which is supplied to the stator windings of the plurality of phases; a rotor on which rotor windings are wound such that rotor current is generated in accordance with the stator magnetomotive force generated by the stator and a magnetic pole is formed by the rotor current; and a control unit that controls an output torque from the rotor, by controlling the stator current. In a case where a predetermined torque is output from the rotor, the control unit applies a pulse to the stator current so as to increase the stator current and reduce the rotor current, when a temperature of the rotor is high as compared with when the temperature of the rotor is low.
    • 旋转电机系统包括定子,其具有多相的定子绕组,并且根据提供给多相的定子绕组的不同相的定子电流产生定子磁动势; 转子绕组缠绕的转子,使得根据由定子产生的定子磁动势产生转子电流,并通过转子电流形成磁极; 以及通过控制定子电流来控制来自转子的输出转矩的控制单元。 在从转子输出预定转矩的情况下,与转子的温度相比,当转子的温度高时,控制单元向定子电流施加脉冲以增加定子电流并降低转子电流, 的转子低。