Method and regulator for electrical reluctance machines

Details Method and regulator for electrical reluctance machines Method and regulator for electrical reluctance machines

2005-01-11

2005-01-11

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

With signals, meters, recorders or testing devices

C318S471000, C318S701000

Reexamination Certificate

active

06841961

ABSTRACT:
The invention relates to a process for estimating an instantaneous resistance in a phase winding in a reluctance machine. The process comprises the steps of: receiving a signal indicating a voltage across at least one phase winding; receiving a signal indicating a current through the phase winding; estimating a magnetic flux in response to the voltage signal and the current signal; estimating an instantaneous resistance in the phase winding in according with a phase relation between the current signal and the magnetic flux signal. The invention also relates to a method for controlling an electrical machine and a drive system for performing the method.

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patent: 4678248 (1987-07-01), Depenbrock
patent: 4740738 (1988-04-01), El Antably et al.
patent: 5043643 (1991-08-01), Hedlund et al.
patent: 5140243 (1992-08-01), Lyons et al.
patent: 5321342 (1994-06-01), Kruse
patent: 5371458 (1994-12-01), Heikkila
patent: 5502360 (1996-03-01), Kerkman et al.
patent: 5589754 (1996-12-01), Heikkila
patent: 5637974 (1997-06-01), McCann
patent: 5867004 (1999-02-01), Drager et al.
patent: WO8802951 (1987-10-01), None
patent: WO9711524 (1996-09-01), None

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