- 专利标题: Control device and a method for controlling an electric drive
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申请号: US16496489申请日: 2018-03-13
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公开(公告)号: US11289970B2公开(公告)日: 2022-03-29
- 发明人: Rafal Piotr Jastrzebski
- 申请人: Lappeenrannan-Lahden teknillinen yliopisto LUT
- 申请人地址: FI Lappeenranta
- 专利权人: Lappeenrannan-Lahden teknillinen yliopisto LUT
- 当前专利权人: Lappeenrannan-Lahden teknillinen yliopisto LUT
- 当前专利权人地址: FI Lappeenranta
- 代理机构: Nixon & Vanderhye
- 优先权: FI20175261 20170322
- 国际申请: PCT/FI2018/050180 WO 20180313
- 国际公布: WO2018/172606 WO 20180927
- 主分类号: H02K7/09
- IPC分类号: H02K7/09 ; H02K11/33 ; F16C32/04 ; H02K3/24 ; H02K17/16 ; H02K19/14 ; H02K21/46
摘要:
An electric drive comprises a bearingless electric machine, a converter, and a control device. The stator of the electric machine has a cage winding including bars connected to a conductor ring. The control device controls the converter to supply torque generating current components to the bars so that torque is generated in accordance with electric machine control and to supply levitation current components to the bars so that the rotor of the bearingless electric machine is levitated in accordance with levitation control. The cage winding allows the currents of the bars to be controlled so that different current sheet distributions can be generated so as to generate desired torque and magnetic force.
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