公开(公告)号：US20150084343A1

公开(公告)日：2015-03-26

申请号：US14489518

申请日：2014-09-18

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： EDOM LEMMA ,  ARWYN THOMAS

IPC: H02K11/00 ,  H02K7/18 ,  F03D9/00

CPC classification number: H02K11/0094 ,  F03D9/25 ,  F03D15/20 ,  F03D17/00 ,  F03D80/70 ,  H02K3/28 ,  H02K7/183 ,  H02K7/1838 ,  H02K11/20 ,  H02K2201/03 ,  H02P25/24 ,  Y02E10/725

Abstract: An electric generator arrangement with a stator being equipped with at least two opposed phase windings, each winding comprising at least two sub-windings in series is provided. The arrangement also comprises a controlled varistor across the connections of the sub-windings of said opposed phase windings. A current imbalance between two opposed phase windings is measured and the varistor is controlled in such a way that the resistance of the varistor is increased when the current imbalance increases.

Abstract translation: 一种具有定子的发电机装置，其具有至少两个相对的相绕组，每个绕组包括串联的至少两个子绕组。 该布置还包括跨过所述相对相绕组的子绕组的连接的受控压敏电阻。 测量两个相对相绕组之间的电流不平衡，并且以当电流不平衡增加时压敏电阻的电阻增加的方式控制压敏电阻。

公开(公告)号：US20180030964A1

公开(公告)日：2018-02-01

申请号：US15657309

申请日：2017-07-24

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： UFFE ERIKSEN ,  EDOM LEMMA ,  KIM THOMSEN ,  MORTEN THORHAUGE

IPC: F03D80/70 ,  F16C17/02

CPC classification number: F03D80/70 ,  F05B2240/53 ,  F05B2240/60 ,  F16C17/02 ,  F16C17/03 ,  F16C17/26 ,  F16C41/02 ,  F16C2300/14 ,  F16C2300/32 ,  F16C2360/31

Abstract: A bearing arrangement of an electrical machine is provided that includes a drive shaft extending through a housing, the bearing arrangement including a front-end bearing arranged about a front end of the drive shaft, and a back-end bearing arranged about an opposite end of the drive shaft, wherein a bearing includes a plurality of bearing pads arranged in an annular space between the drive shaft and the housing, and wherein at least one bearing includes an uneven distribution of bearing pads about the drive shaft. Furthermore, a wind turbine including such a bearing arrangement is also provided.

公开(公告)号：US20170288500A1

公开(公告)日：2017-10-05

申请号：US15462947

申请日：2017-03-20

Applicant: Siemens Aktiengesellschaft

Inventor： UFFE ERIKSEN ,  EDOM LEMMA ,  CLAUS THYGESEN

IPC: H02K7/18 ,  H02K9/19 ,  H02K1/27 ,  H02K7/102 ,  F03D9/25 ,  H02K1/18 ,  H02K5/22 ,  H02K9/10 ,  F03D1/00

CPC classification number: H02K7/102 ,  F03D1/00 ,  F03D9/25 ,  H02K1/187 ,  H02K1/2786 ,  H02K7/116 ,  H02K7/1838 ,  H02K9/04 ,  H02K15/0006 ,  Y02E10/725

Abstract: A stator assembly is provided including (a) an inner frame structure having an annular shape with an inner circumferential edge and an outer circumferential edge, wherein the inner frame structure is formed around a center axis corresponding to an axial direction of the electric generator; and (b) an outer frame structure, which surrounds the inner frame structure and which, starting from the outer circumferential edge, includes two inclined annular walls which, along a radial direction, spread apart from each other such that in between a first inclined annular wall and the second inclined annular wall there is formed an accommodation space. Preferably, the inner frame structure and the outer frame structure are made from a single piece.

公开(公告)号：US20170288501A1

公开(公告)日：2017-10-05

申请号：US15469626

申请日：2017-03-27

Applicant: Siemens Aktiengesellschaft

Inventor： UFFE ERIKSEN ,  EDOM LEMMA ,  CLAUS THYGESEN

IPC: H02K7/18

CPC classification number: H02K7/183 ,  H02K7/00 ,  H02K7/10 ,  H02K7/18 ,  H02K7/1807 ,  H02K7/1838 ,  Y02E10/725

Abstract: An electric generator is provided including a stator assembly, a rotor assembly being rotatably supported at the stator assembly for rotating around a rotational axis, an annular device being fixed to the rotor assembly and including an engagement structure, and a first turning device being mounted to the stator assembly, the first turning device including an actuator and an engagement element being drivable by the actuator. The first turning device is configured for adopting two operational states, an active operational state and a passive operational state. In the active operational state there is an engagement between the engagement element and the engagement structure and in the passive operational state the engagement element and the engagement structure are mechanically decoupled from each other.

公开(公告)号：US20150288232A1

公开(公告)日：2015-10-08

申请号：US14569814

申请日：2014-12-15

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： EDOM LEMMA

IPC: H02K1/28 ,  H02K15/03 ,  H02K1/27 ,  H02K15/00 ,  F03D9/00

CPC classification number: H02K1/2786 ,  F03D9/25 ,  F03D80/50 ,  H02K7/1838 ,  H02K15/03 ,  H02K2213/12 ,  Y02E10/725 ,  Y10T29/49012

Abstract: An outer rotor construction for a wind turbine generator which outer rotor construction comprises a plurality of rotor housing segments, wherein a rotor housing segment is realized to hold a number of magnet poles, and wherein a rotor housing segment comprises a lateral connecting interface of a lateral connection for detachably connecting that rotor housing segment along its longitudinal length to a number of adjacent rotor housing segments. The invention further describes a wind turbine including a generator, which generator includes an inner stator and such an outer rotor is provided. A method of performing a maintenance procedure on such an outer rotor construction is also provided.

Abstract translation: 一种用于风力涡轮发电机的外转子结构，其外转子结构包括多个转子壳体段，其中实现了转子壳体段以保持多个磁极，并且其中转子壳体段包括横向连接界面 用于将该转子壳体段沿其纵向长度可拆卸地连接到多个相邻的转子壳体段的连接。 本发明还描述了一种包括发电机的风力涡轮机，该发电机包括内部定子，并且设置有这样的外部转子。 还提供了对这种外转子结构执行维护程序的方法。