发明申请
- 专利标题: ROTATING ELECTRICAL MACHINE AND METHOD FOR MEASURING A DISPLACEMENT OF A ROTOR OF A ROTATING ELECTRICAL MACHINE
- 专利标题(中): 旋转电机和旋转电机转子的位移测量方法
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申请号: US14355649申请日: 2012-11-01
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公开(公告)号: US20140252899A1公开(公告)日: 2014-09-11
- 发明人: Andreas Looser
- 申请人: ETH ZURICH
- 申请人地址: CH Zurich ETH-Zentrum
- 专利权人: ETH ZURICH
- 当前专利权人: ETH ZURICH
- 当前专利权人地址: CH Zurich ETH-Zentrum
- 优先权: EP11405353.1 20111104
- 国际申请: PCT/CH2012/000246 WO 20121101
- 主分类号: H02K11/00
- IPC分类号: H02K11/00 ; G01B7/14 ; H02K7/09
摘要:
A rotating electrical machine includes a stator, a rotor and at least one active magnetic bearing including a bearing winding, which is an air-gap winding, and includes at least a first phase winding and a second phase winding. A measurement arrangement measures the radial displacement of the rotor by injecting a displacement measurement injected signal into at least one section of at least one of the bearing windings of one of the magnetic bearings, and capturing at least one displacement measurement signal wherein this displacement measurement signal depends on the rotor displacement in a radial direction relative to the stator, this dependency being due to eddy currents in the rotor induced by the displacement measurement injected signal.
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