公开(公告)号：US20150364978A1

公开(公告)日：2015-12-17

申请号：US14391970

申请日：2014-09-08

申请人： NRG TECH. LTD.

发明人： Lachezar Lazarov Petkanchin

IPC分类号： H02K17/26 ,  H02K11/00 ,  H02K5/22 ,  H02K17/22 ,  H02K3/28

CPC分类号： H02K17/26 ,  C03B20/00 ,  C03C3/06 ,  C03C17/04 ,  C03C2217/213 ,  C03C2218/11 ,  H02K3/28 ,  H02K5/225 ,  H02K11/0094 ,  H02K11/20 ,  H02K17/22

摘要： An electric machine that includes a stator and a rotor, wherein the rotor is adapted to rotate relatively to the stator, and wherein the rotor comprises a rotor-switching-device which is arranged at the rotor.

摘要翻译： 一种包括定子和转子的电机，其中所述转子适于相对于所述定子旋转，并且其中所述转子包括布置在所述转子处的转子切换装置。

公开(公告)号：US10790773B2

公开(公告)日：2020-09-29

申请号：US16078026

申请日：2017-01-30

申请人： NRG TECH LTD.

发明人： Lachezar Lazarov Petkanchin

IPC分类号： H02P23/08 ,  H02P9/00 ,  H02P23/20

摘要： Electric motor, in particular induction motor, comprising a stator, a rotor and a control device which is arranged at the rotor. The three rotor windings are connected to a Rotor Control device with inverter and controller unit mounted on the rotor. A capacitor is placed in the DC link. The capacitor is supplied from the EMF induced in the rotor. The current in the rotor windings is advanced in order to achieve a 90 degree phase shift between rotor current and stator MMF vector. To achieve this the frequency and amplitude of the rotor current as well as the phase shift can be varied. Wherein the frequency of the rotor inverter is matching the slip frequency.

公开(公告)号：US20190052212A1

公开(公告)日：2019-02-14

申请号：US16078026

申请日：2017-01-30

申请人： NRG Tech Ltd.

发明人： Lachezar Lazarov PETKANCHIN

IPC分类号： H02P23/08 ,  H02P9/00 ,  H02P23/20

摘要： Electric motor, in particular induction motor, comprising a stator, a rotor and a control device which is arranged at the rotor. The three rotor windings are connected to a Rotor Control device with inverter and controller unit mounted on the rotor. A capacitor is placed in the DC link. The capacitor is supplied from the EMF induced in the rotor. The current in the rotor windings is advanced in order to achieve a 90 degree phase shift between rotor current and stator MMF vector. To achieve this the frequency and amplitude of the rotor current as well as the phase shift can be varied. Wherein the frequency of the rotor inverter is matching the slip frequency.