| 发明名称 |
Method for in-situ magnetization or degaussing of generator rotor |
| 摘要 |
A method for in-situ magnetization of a generator rotor is provided. The generator has a stator and the rotor is located inside the stator. An air gap is formed between an outer radial portion of the rotor and an inner radial portion of the stator. The rotor has a plurality of excitation windings and a plurality of permanent magnets. The method includes the step of applying a current to the excitation windings, and the current is greater than a normal excitation current. A maintaining step maintains the current for a time period sufficient to magnetize the permanent magnets. The magnetization of the permanent magnets occurs on the rotor in-situ and while the rotor is inside the stator. |
| 申请公布号 |
US9508479(B1) |
申请公布日期 |
2016.11.29 |
| 申请号 |
US201514744754 |
申请日期 |
2015.06.19 |
| 申请人 |
General Electric Company |
发明人 |
Buskirk Eric Steven |
| 分类号 |
H01F13/00 |
主分类号 |
H01F13/00 |
| 代理机构 |
|
代理人 |
Pemrick James W.;Cusick Ernest G.;Landgraff Frank A. |
| 主权项 |
1. A method for in-situ magnetization of a generator rotor, the generator having a stator and the rotor is located inside the stator, an air gap is formed between an outer radial portion of the rotor and an inner radial portion of the stator, the rotor having a plurality of excitation windings and a plurality of permanent magnets, the method comprising:
applying a current to the excitation windings, the current is greater than a normal excitation current; maintaining the current for a time period sufficient to magnetize the permanent magnets; and wherein the magnetization of the permanent magnets occurs on the rotor in-situ and while the rotor is inside the stator. |
| 地址 |
Schenectady NY US |
