发明名称 |
Device for safeguarding an uninterruptible power supply of a magnet bearing in the event of failure of an electrical supply voltage |
摘要 |
The invention relates to a device for safeguarding uninterrupted power supply of a magnetic bearing (5) in the event of a power supply voltage (U) failure. Said device comprises: a first frequency converter (2) which is supplied with power by the supply voltage (U) and controls a motor (3), and a transformer (7) which is connected to a rectifier (8) and the motor (3), said rectifier (8) supplying a DC-link electric circuit (11) of a second frequency converter (14) controlling the magnetic bearing (5) with power in the event of a power supply voltage failure. The invention allows prevention of damages to the magnetic bearing in the event of disruption of power supply of the magnetic bearing in the event of a power supply voltage failure.
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申请公布号 |
US7928620(B2) |
申请公布日期 |
2011.04.19 |
申请号 |
US20070298822 |
申请日期 |
2007.03.16 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
DENK JOACHIM;STOIBER DIETMAR;WEDEL BERND |
分类号 |
H02K7/09;F16C32/04;H02J9/00;H02P27/06 |
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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