发明名称 |
Fault tolerant homopolar magnetic bearings |
摘要 |
A magnetic bearing for supporting a spinning shaft in the radial direction and/or the axial direction includes a rotor formed on the shaft and a stator positioned around the rotor. Poles in the stator creates a magnetic field that supports the rotor. The number of poles is at least sufficient to produce a selected control force if there is an at least partial loss of current to one or more of the poles. The bearing also includes a set of permanent magnetic elements associated with the poles that create a homopolar, bias magnetic field. A controller connected to the poles is programmed with instructions to change the current to each pole in response to at least a partial loss of current to one or more of the poles and can include a current distribution matrix for determining a current value for each pole in such instances.
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申请公布号 |
US2006055260(A1) |
申请公布日期 |
2006.03.16 |
申请号 |
US20050142747 |
申请日期 |
2005.06.01 |
申请人 |
THE TEXAS A&M UNIVERSITY SYSTEM |
发明人 |
PALAZZOLO ALAN;LI MING-HSIU;KENNY ANDREW;PRUESS JASON;TUCKER RANDALL P.;PROVENZA ANDREW J.;BEACH RAYMOND;KASCAK ALBERT |
分类号 |
H02K7/09 |
主分类号 |
H02K7/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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