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Implicit rotor-position sensing using motor windings for a self-commutating permanent-magnet drive system

 

作者: K.J.Binns,   D.W.Shimmin,   K.M.Al-Aubidy,  

 

期刊: IEE Proceedings B (Electric Power Applications)  (IET Available online 1991)
卷期: Volume 138, issue 1  

页码: 28-34

 

年代: 1991

 

DOI:10.1049/ip-b.1991.0004

 

出版商: IEE

 

数据来源: IET

 

摘要:

The paper describes a novel method of rotor-position sensing of permanent-magnet machines, which requires no encoder nor any modification to conventional machines. The machine is electronically commutated, by virtue of position sensing, achieved through measuring the modulation in the inverter carrier frequency component, caused by the positional variation in motor winding impedance. A closed-loop speed control system drives the motor with precision and at maximum efficiency for a wide range of load and speed.

 

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