| 发明名称 |
APPARATUS AND METHOD FOR TRANSFERRING ELECTRICAL POWER TO A ROTATING SHAFT |
| 摘要 |
Apparatus and method for transferring electrical power to a rotating shaft. An apparatus for transferring electrical power to a rotating shaft, the apparatus includes a first winding in a stationary part of the apparatus around the shaft, a second winding on the shaft adjacent to the first winding, a sensing device adapted to sense the rotational frequency of the shaft, and a variable frequency drive. The variable frequency drive is adapted to adjust an input current frequency to the first winding as a function of the rotational frequency of the shaft, whereby a desired output voltage and frequency in the second winding on the shaft is obtained. |
| 申请公布号 |
US2014352996(A1) |
申请公布日期 |
2014.12.04 |
| 申请号 |
US201214362681 |
申请日期 |
2012.12.06 |
| 申请人 |
National Oilwell Varco Norway AS |
发明人 |
Austefjord Arne |
| 分类号 |
B23B49/00;H02J5/00;H01F38/18 |
主分类号 |
B23B49/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An apparatus for transferring electrical power to a rotating shaft, the apparatus comprising:
a first winding in a stationary part of the apparatus around the shaft; a second winding on the shaft adjacent to the first winding, a sensing device adapted to sense the rotational frequency of the shaft and a variable frequency drive adapted to adjust an input current frequency to the first winding as a function of the rotational frequency of the shaft, whereby a desired output voltage and frequency in the second winding on the shaft can be obtained. |
| 地址 |
Kristiansand S NO |
