Electricity: motive power systems – Synchronous motor systems
Patent
1998-05-21
1999-12-21
Masih, Karen
Electricity: motive power systems
Synchronous motor systems
318727, 318809, 318608, 318799, H02P 146
Patent
active
060053658
ABSTRACT:
The present invention addresses a problem as to how to provide a motor control apparatus which has a magnetic pole position inferring means capable of inferring the position of a magnetic pole of a synchronous motor by adopting a simple method in a short period of time with a high degree of accuracy. In order to solve this problem, a signal id1* for inference use is applied and a peak value iqh of a response current iq' is detected by an iq' peak detecting unit. The peak value iqh is then supplied to a magnetic pole position inferring unit for inferring the position of the magnetic pole of the synchronous motor by carrying out multiplication processing.
REFERENCES:
patent: 4006977 (1977-02-01), Harrow et al.
Kaneko Satoru
Masaki Ryozo
Hitachi , Ltd.
Masih Karen
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