Motor control device

Details Motor control device Motor control device

1997-12-22

1999-04-20

Ip, Paul

Electricity: motive power systems

Synchronous motor systems

Hysteresis or reluctance motor systems

318254, 318757, 318727, 318138, H02P 500, H02P 540

Patent

active

058960198

ABSTRACT:
A motor control device that can control the rotational direction of a rotor with polarity in an initial position detection. The motor control device includes first metering voltage signal generating system for sequentially creating 2N-phase signals to an N-phase motor, current metering system for measuring stator winding current, and first rotational position arithmetic system for detecting an absolute rotational position corresponding to an electrical angle of 180.degree. based on the measured current.

REFERENCES:
patent: 4572951 (1986-02-01), Toda et al.
patent: 5075610 (1991-12-01), Harris
patent: 5294856 (1994-03-01), Horst
patent: 5313149 (1994-05-01), Bahn
patent: 5652493 (1997-07-01), Hendershot, Jr.

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