Method of inspecting a generator air-gap
    2.
    发明公开
    Method of inspecting a generator air-gap 审中-公开
    Verfahren zur Inspektion eines Generatorluftspalts

    公开(公告)号:EP2924453A1

    公开(公告)日:2015-09-30

    申请号:EP14161812.4

    申请日:2014-03-26

    IPC分类号: G01R31/34 H02K15/00

    摘要: The invention describes a method of inspecting an air-gap (1) of an electrical machine (2), which method comprises the steps of directing at least one laser beam (L) into the air-gap (1); detecting the laser beam (L) after reflection; determining the distance (d OK , d F ) travelled by the laser beam (L); and analysing the travelled distance (d OK , d F ) to detect an irregularity (F pole , F oval , F object ) in the air-gap (1). The invention further describes an air-gap inspection apparatus (3) for detecting an irregularity in the air-gap (1) of an electrical machine (2), which apparatus (3) comprises a laser module (30) realised to direct at least one laser beam (L) into the air-gap (1) and to detect the laser beam (L) after reflection; a computation unit (31) realised to determine the distance (d OK , d F ) travelled by the laser beam (L); and an analysis unit (32) realised to analyse the travelled distance (d OK , d F ) to detect an irregularity in the air-gap (1).

    摘要翻译: 本发明描述了一种检查电机(2)的气隙(1)的方法,该方法包括将至少一个激光束(L)引导到气隙(1)中的步骤; 反射后检测激光束(L); 确定由激光束(L)行进的距离(d OK,d F); 并分析行进距离(d OK,d F)以检测气隙(1)中的不规则(F极,F椭圆,F物体)。 本发明还描述了一种用于检测电机(2)的气隙(1)中的不规则性的气隙检查装置(3),该装置(3)包括实现为至少引导的激光模块(30) 一个激光束(L)进入气隙(1)并在反射之后检测激光束(L); 实现用于确定由激光束(L)行进的距离(d OK,d F)的计算单元(31); 以及分析单元(32),用于分析行进距离(d OK,d F)以检测气隙(1)中的不规则性。

    Stator tooth segmentation method for electric machines
    3.
    发明公开
    Stator tooth segmentation method for electric machines 有权
    电机的定子牙齿分割方法

    公开(公告)号:EP2757662A1

    公开(公告)日:2014-07-23

    申请号:EP13151624.7

    申请日:2013-01-17

    IPC分类号: H02K1/16 H02K3/487 H02K7/18

    摘要: The present invention relates to a stator for an electrical machine comprising a stator body (101) which has a tubular profile with a ring shaped cross sectional shape. The stator body (101) is divided along a centre axis (109) of the stator body (101) at least into a first stator segment (113) and a second stator segment (114). The first stator segment (113) comprises a stator tooth (104) and a tooth tip cover (106), wherein the stator tooth (104) extents from a surface (201) of the first stator segment (113) along a radial direction (102) and has a free end (202). The tooth tip cover (106) is mounted to the free end (202) of the stator tooth (104) in a detachable manner.

    摘要翻译: 用于电机的定子技术领域本发明涉及一种用于电机的定子,其包括具有环形截面形状的管状轮廓的定子本体(101)。 定子本体(101)沿定子本体(101)的中心轴线(109)至少分成第一定子区段(113)和第二定子区段(114)。 第一定子区段113包括定子齿104和齿顶盖106,其中定子齿104从第一定子区段113的表面201沿着径向方向延伸 102)并具有自由端(202)。 齿顶盖(106)以可拆卸的方式安装到定子齿(104)的自由端(202)。

    Method and arrangement for torque estimation of a synchronous machine
    4.
    发明公开
    Method and arrangement for torque estimation of a synchronous machine 有权
    Verfahren und Vorrichtung zurSchätzungdes Drehmoments einer Synchronmaschine

    公开(公告)号:EP2747273A1

    公开(公告)日:2014-06-25

    申请号:EP12198650.9

    申请日:2012-12-20

    IPC分类号: H02P21/14

    CPC分类号: H02P21/20

    摘要: It is described a method (100) of estimating torque for a synchronous electromagnetic machine (101) comprising a stator having at least one winding and a rotor having a, during operation, magnetic region, the method comprising: receiving a current signal (i d , i q , 105, 107) indicative of an electrical current flowing in the winding; receiving a voltage signal (u d , u q , 103) indicative of a voltage applied to the winding; estimating a back electromotive force (e d , e q ) based on current (i d , i q ) and voltage (u d , uq) ; deriving a torque (Te) based on estimated back electromotive force (e d , e q ) and current signal (i d , i q ).

    摘要翻译: 描述了一种用于估计同步电磁机(101)的扭矩的方法(100),该方法包括具有至少一个绕组的定子和具有在操作期间的磁区的转子,所述方法包括:接收电流信号(id, iq,105,107),其指示在所述绕组中流动的电流; 接收表示施加到所述绕组的电压的电压信号(u d,u q,103) 基于电流(i d,i q)和电压(u d,uq)估计反电动势(e d,e q); 基于估计的反电动势(e d,e q)和电流信号(i d,i q)导出转矩(Te)。

    Konvertersystem und Verfahren zum Konvertieren von Wechselstrom

    公开(公告)号:EP2919380A1

    公开(公告)日:2015-09-16

    申请号:EP15151207.6

    申请日:2015-01-15

    发明人: Wu, Lijian

    IPC分类号: H02P9/00 H02P25/22 G05D3/20

    摘要: Beschrieben ist ein Konvertersystem (101) zum Konvertieren von Wechselstrom (113,115,117,121,123,125) variabler Frequenz in Wechselstrom (129,131,133,135,137,139) konstanter Frequenz, wobei das Konvertersystem aufweist: einen ersten Konverter (119), welcher mit einem ersten Satz (109) von Windungen eines Generators (107) elektrisch verbindbar ist; und zumindest einen zweiten Konverter (127), welcher mit einem zweiten Satz (111) von Windungen des Generators (107) elektrisch verbindbar ist, wobei der erste Konverter in einem ersten Betriebsmodus ausgebildet ist, eine erste geschätzte Rotorposition (145) des Generators (107) zu bestimmen, und Ansteuerungen von in dem ersten Konverter umfassten ersten Leistungstransistoren (153) zum Konvertieren des Wechselstroms basierend auf der ersten geschätzten Rotorposition (145) vorzunehmen, wobei der zweite Konverter (127) in einem ersten Betriebsmodus ausgebildet ist, die erste geschätzte Rotorposition (145) des Generators (107) von dem ersten Konverter (119) zu empfangen, und Ansteuerungen von in dem zweiten Konverter (127) umfassten zweiten Leistungstransistoren (163) zum Konvertieren des Wechselstroms basierend auf der ersten geschätzten Rotorposition (145) vorzunehmen.

    摘要翻译: 提供了一种用于将可变频率的交流电转换为恒定频率的交流电的A转换器系统,具有:电连接到发电机的第一组匝的第一转换器; 以及至少第二转换器,其电连接到所述发电机的第二组匝数,其中所述第一转换器在第一操作模式中确定所述发电机的第一估计转子位置,并且执行所述第一功率晶体管的驱动操作, 转换器,用于基于第一估计转子位置转换交流电,其中第一操作模式中的第二转换器从第一转换器接收发电机的第一估计转子位置,并执行包含在第一转换器中的第二功率晶体管的驱动操作 第二转换器,用于基于第一估计转子位置转换交流电流。

    Rotor of an electric generator
    6.
    发明公开
    Rotor of an electric generator 审中-公开
    转子发电机

    公开(公告)号:EP2741398A1

    公开(公告)日:2014-06-11

    申请号:EP12195947.2

    申请日:2012-12-06

    发明人: Azar, Ziad Wu, Lijian

    IPC分类号: H02K1/24 H02K1/27 H02K7/18

    摘要: There is described a rotor of an electric generator, preferably an outer rotor of a generator in a wind turbine. This rotor consists of a rotor structure comprising a ferromagnetic material (610,611,612) able to guide the magnetic flux, wherein at least one cavity (615) is formed in the ferromagnetic material (610,611,612) in such a manner that the magnetic flux in a direction substantially perpendicular to the pole body (611) is attenuated by the cavity (615), see stippled line 616.

    摘要翻译: 描述了发电机的转子,优选地是风力涡轮机中的发电机的外转子。 该转子由包括能够引导磁通量的铁磁材料(610,611,612)的转子结构组成,其中至少一个空腔(615)形成在铁磁材料(610,611,612)中,使得磁通量在大体上 垂直于极体(611)的腔体(615)被衰减,见点划线616。

    Method of inspecting a generator air-gap

    公开(公告)号:EP2924453B1

    公开(公告)日:2018-10-31

    申请号:EP14161812.4

    申请日:2014-03-26

    摘要: The invention describes a method of inspecting an air-gap (1) of an electrical machine (2), which method comprises the steps of directing at least one laser beam (L) into the air-gap (1); detecting the laser beam (L) after reflection; determining the distance (d OK , d F ) travelled by the laser beam (L); and analysing the travelled distance (d OK , d F ) to detect an irregularity (F pole , F oval , F object ) in the air-gap (1). The invention further describes an air-gap inspection apparatus (3) for detecting an irregularity in the air-gap (1) of an electrical machine (2), which apparatus (3) comprises a laser module (30) realised to direct at least one laser beam (L) into the air-gap (1) and to detect the laser beam (L) after reflection; a computation unit (31) realised to determine the distance (d OK , d F ) travelled by the laser beam (L); and an analysis unit (32) realised to analyse the travelled distance (d OK , d F ) to detect an irregularity in the air-gap (1).

    Rotor with a assembly of permanent magnets arranged in axial direction and electric machine comprising such a rotor
    8.
    发明公开
    Rotor with a assembly of permanent magnets arranged in axial direction and electric machine comprising such a rotor 审中-公开
    转子与在永久磁铁组件和具有这种转子的电机的轴向方向上排列

    公开(公告)号:EP2897265A1

    公开(公告)日:2015-07-22

    申请号:EP14151293.9

    申请日:2014-01-15

    摘要: A rotor of an electric machine which might be used in a wind turbine is described. The rotor comprises (a) a mechanical support structure and (b) a magnet arrangement (560). The magnet arrangement comprises (b1) a first permanent magnet component (570a) and (b2) a second permanent magnet component (570b). The first (570a) and the second (570b) permanent magnet component are attached to said support and are arranged in axial direction of the rotor. The cross section in circumferential direction of the first permanent magnet component (570a) has a first shape and the cross section in circumferential direction of the second permanent magnet component (570b) has a second shape being different from the first shape.

    摘要翻译: 这可能在风力涡轮机一起使用的电机的转子进行说明。 转子包括(a)一种机械支撑结构和(b)的磁铁装置(560)。 磁铁装置包括:(b1)中的第一永磁体部件(570A)和(b2)的第二永久磁铁组件(570B)。 第一(570A)和第二(570B)永久磁铁成分附接到所述支承和在转子的轴向方向被布置。 在所述第一永久磁体组件(570A)的圆周方向上的横截面具有第一形状,并且在所述第二永久磁铁组件(570B)具有第二形状不同于所述第一形状不同的圆周方向上的横截面。

    Electrical machine having partially parallel slots and teeth
    10.
    发明公开
    Electrical machine having partially parallel slots and teeth 有权
    Nuten undZähnen的Elektrische Maschine mit teilweise parallelen

    公开(公告)号:EP2806534A1

    公开(公告)日:2014-11-26

    申请号:EP13168963.0

    申请日:2013-05-23

    IPC分类号: H02K1/16 H02K1/26

    摘要: The present invention relates to a tubular body (100) for an electrical machine. The tubular body (100) comprises a curved surface area (101), a first tooth (110) and a second tooth (120). The tubular body (100) is arrangable with respect to a further tubular body (100) such that one of the tubular body (100) or the further tubular body (100) is rotatable with respect to the other one around a rotary axis (105). The first tooth (110) and the second tooth (120) extend from the curved surface area (101) along a radial direction (102) with respect to the rotary axis (105), wherein the first tooth (110) and the second tooth (120) are spaced apart from each other along a circumferential direction (103) around the rotary axis (105). The first tooth (110) comprises a first side wall (113) facing a second side wall (123) of the second tooth (120), wherein the first side wall (113) comprises a first section (111) which is parallel to the second side wall (123) such that a circumferential distance (104) between the first section (111) and the second side wall (123) is constant along the radial direction (102).

    摘要翻译: 本发明涉及一种用于电机的管体(100)。 管状体(100)包括曲面区域(101),第一齿(110)和第二齿(120)。 管状体(100)可相对于另一个管状体(100)布置,使得管状主体(100)或另外的管状体(100)中的一个可相对于另一个围绕旋转轴线(105)旋转 )。 第一齿(110)和第二齿(120)相对于旋转轴线(105)沿着径向方向(102)从弯曲表面区域(101)延伸,其中第一齿(110)和第二齿 (120)沿着围绕旋转轴线(105)的圆周方向(103)彼此间隔开。 第一齿(110)包括面向第二齿(120)的第二侧壁(123)的第一侧壁(113),其中第一侧壁(113)包括第一部分(111),该第一部分平行于 第二侧壁(123),使得第一部分(111)和第二侧壁(123)之间的周向距离(104)沿着径向方向(102)是恒定的。