- 专利标题: Electrical rotating machine control unit and power generation system
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申请号: US10923195申请日: 2004-08-20
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公开(公告)号: US07095133B2公开(公告)日: 2006-08-22
- 发明人: Mamoru Kimura , Motoo Futami , Masaya Ichinose , Kazumasa Ide , Kazuhiro Imaie
- 申请人: Mamoru Kimura , Motoo Futami , Masaya Ichinose , Kazumasa Ide , Kazuhiro Imaie
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Crowell & Moring LLP
- 优先权: JP2004-004900 20040113
- 主分类号: H02P9/10
- IPC分类号: H02P9/10
摘要:
Because of the necessity of resolver for detecting a rotating position, which is very expensive, and noise suppression of the rotating position signal line on a doubly-fed machine, cost increase of the generator and reduced reliability due to possible failures are inevitable. In order to solve such problem, a generation system in the present invention is equipped with an exciter that estimates the slip frequency of the doubly-fed machine from each primary current I1 and voltage V1 and secondary current I2 and voltage V2 of the doubly-fed machine and excites the secondary of the doubly-fed machine at the estimated slip frequency.