公开(公告)号：US09793703B2

公开(公告)日：2017-10-17

申请号：US15075251

申请日：2016-03-21

Applicant: ALSTOM Renewable Technologies Wind B.V.

Inventor： Julio Cesar Urresty

IPC: H02H7/06 ,  H02P29/024 ,  H02P9/00 ,  H02P9/10 ,  H02K11/27 ,  H02K11/33

CPC classification number: H02H7/06 ,  H02K11/27 ,  H02K11/33 ,  H02P9/006 ,  H02P9/10 ,  H02P29/027

Abstract: A method for protecting a permanent magnet generator of a wind turbine with a multiphase generator, and n number of isolated converters, the multiphase generator including a rotor carrying permanent magnets and n number of independent multiphase sub-stators comprising a plurality of windings, each converter being connected to an independent multiphase sub-stator and configured to control the plurality of windings of the multiphase sub-stator comprises determining an asymmetrical short circuit current in one of the sub-stators, which generates a first oscillating torque, disconnecting the converter linked to the sub-stator with an asymmetrically short circuited group of windings, and injecting an asymmetrical current with the remaining connected converters, wherein said injected asymmetrical current generates a second oscillating torque that is substantially opposed in phase to the first oscillating torque so that the first oscillating torque is at least partly compensated is disclosed. Permanent magnet generators are also disclosed.

公开(公告)号：US20160285251A1

公开(公告)日：2016-09-29

申请号：US15075251

申请日：2016-03-21

Applicant: ALSTOM Renewable Technologies Wind B.V.

Inventor： Julio Cesar Urresty

IPC: H02H7/06 ,  H02K11/33 ,  H02K11/27

CPC classification number: H02H7/06 ,  H02K11/27 ,  H02K11/33 ,  H02P9/006 ,  H02P9/10 ,  H02P29/027

Abstract: A method for protecting a permanent magnet generator of a wind turbine with a multiphase generator, and n number of isolated converters, the multiphase generator including a rotor carrying permanent magnets and n number of independent multiphase sub-stators comprising a plurality of windings, each converter being connected to an independent multiphase sub-stator and configured to control the plurality of windings of the multiphase sub-stator comprises determining an asymmetrical short circuit current in one of the sub-stators, which generates a first oscillating torque, disconnecting the converter linked to the sub-stator with an asymmetrically short circuited group of windings, and injecting an asymmetrical current with the remaining connected converters, wherein said injected asymmetrical current generates a second oscillating torque that is substantially opposed in phase to the first oscillating torque so that the first oscillating torque is at least partly compensated is disclosed. Permanent magnet generators are also disclosed.

Abstract translation: 一种用多相发电机保护风力涡轮机的永磁发电机的方法，以及n个隔离的转换器，所述多相发电机包括承载永磁体的转子和包括多个绕组的n个独立多相子定子，每个转换器 连接到独立的多相子定子并且被配置为控制多相子定子的多个绕组包括确定在一个子定子中的非对称短路电流，其产生第一振荡转矩，断开连接到 所述子定子具有不对称短路的绕组组，并且与剩余的连接的转换器注入不对称电流，其中所述注入的不对称电流产生基本上与第一振荡转矩相位的第二振荡转矩，使得第一振荡 公开了至少部分补偿扭矩。 还公开了永磁发电机。