发明授权
- 专利标题： Speed sensing for the third harmonic stator voltage signal
- 专利标题（中）： 三次谐波定子电压信号的速度检测
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申请号： US175597申请日： 1993-12-30
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公开(公告)号： US5422570A公开(公告)日： 1995-06-06
- 发明人: Julio C. Moreira
- 申请人： Julio C. Moreira
- 申请人地址： MI Benton Harbor
- 专利权人： Whirlpool Corporation
- 当前专利权人： Whirlpool Corporation
- 当前专利权人地址： MI Benton Harbor
- 主分类号： G01P3/48
- IPC分类号： G01P3/48 ; H02P6/06 ; G01P3/46 ; H02P5/00 ; H02P5/06 ; H02P7/06
摘要：
A method and system for sensing the rotor speed of a brushless permanent magnet motor wherein a signal containing isolated third harmonic components of the flux density is acquired, and the absolute values of the maximas of the signal are measured, the last measured absolute maxima representing the current rotor speed of the motor.
公开/授权文献
- US4371500A Apparatus for generating hydrogen 公开/授权日：1983-02-01
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