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1. 发明公开

EP2704298A1 Mulipolar brushless double fed asynchronous generator 审中-公开
标题翻译： Vielpoliger schleifringloser doppeltgespeister Asynchrongenerator
公开(公告)号：EP2704298A1
公开(公告)日：2014-03-05
申请号：EP12182704.2
申请日：2012-09-03
申请人： Rigas Tehniska Universitate , Fizikalas Energetikas instituts
发明人： Dilevs, Guntis , Jãkobsons, Edgars , Levins, Nikolajs , Pugacevs, Vladislavs , Ribickis, Leonids
IPC分类号： H02K19/24 , H02K17/42
CPC分类号： H02K19/24 , H02K17/42
摘要： The invention relates to electrical engineering industry, especially, to electrical machines, which can be used as directly driven wind generators. The proposed multipolar contactless double fed asynchronous generator contains a windingless toothed rotor, a stator (1) having groups of teeth (2) with even number of teeth, each group of teeth (2) being embraced by phase m 1 primary winding coils and phase m 2 secondary winding coils (3), wherein the primary and secondary windings are distributed so that each primary winding phase contains coils connected in opposite-series, embracing m 1 stator teeth, and secondary winding coils connected in opposite-series, embracing 2m 1 stator teeth, wherein teeth step t 1 within each group (2) is determined by equation t 1 = t z k 1 ± 1 6 , but the teeth pitch t 2 for mixed groups is determined by equation t 2 = t z k 2 ± 2 3 , where t z is rotor tooth step(4); k 1 , k 2 - are integers. The increased electromagnetic link between the primary and secondary windings according to the proposed device allows increase of specific power and efficiency of the generator.
摘要翻译：本发明涉及电气工程，特别涉及可用作直接驱动的风力发电机的电机。所提出的多极非接触式双馈异步发电机包括一个无绕齿齿形转子，一个定子（1）具有齿数为2的齿数（2），每组齿（2）由相位m 1的初级绕组线圈和相位 m 2次级绕组（3），其中初级绕组和次级绕组分布成使得每个初级绕组相包含相互串联连接的线圈，包括m 1个定子齿，和以相反的方式连接的次级绕组线圈，包括2m 1 定子齿，其中每组（2）内的齿步t 1由等式t 1 = tzk 1±1 6确定，但混合组的齿间距t 2由等式t 2 = tzk 2±2 3确定，其中 tz是转子齿步（4）; k 1，k 2 - 是整数。根据所提出的装置，初级和次级绕组之间的增加的电磁连接允许增加发电机的比功率和效率。

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