发明申请
- 专利标题: Electrical machine arrangement
- 专利标题(中): 电机布置
-
申请号: US12379937申请日: 2009-03-04
-
公开(公告)号: US20100045221A1公开(公告)日: 2010-02-25
- 发明人: David R. Trainer , Harsh Agarwal , Stephen M. Husband , Gareth E. Moore , David J. Powell , Stephen A. Long
- 申请人: David R. Trainer , Harsh Agarwal , Stephen M. Husband , Gareth E. Moore , David J. Powell , Stephen A. Long
- 申请人地址: GB LONDON
- 专利权人: ROLLS-ROYCE PLC
- 当前专利权人: ROLLS-ROYCE PLC
- 当前专利权人地址: GB LONDON
- 优先权: GB0804866.2 20080317
- 主分类号: H02P6/14
- IPC分类号: H02P6/14 ; H02P25/08
摘要:
Electrical machine arrangements have advantages with regard to providing local electrical power and starting. Embedding such electrical machine arrangements in machinery such as gas turbine engines is advantageous in removing mechanical linkages and reducing aerodynamic drag. However, the components utilised must be able to withstand harsh environmental conditions and therefore the DC link capacitor used for smoothing of voltage fluctuations are limited to relatively low capacitance densities. Low density DC link capacitors require large sizes which render electrical machines less acceptable for embedded usage. By providing offset of electrical current in inductance elements such as stator windings and stator coils of electrical machines in dead periods of the cycle a reduction in DC link capacitor requirements is achieved reducing the size, weight and complexity of installing electrical machines in gas turbine engines.
公开/授权文献
- US08193750B2 Electrical machine arrangement 公开/授权日:2012-06-05
信息查询