Motor control system

Details Motor control system Motor control system

1982-08-03

1984-10-23

Goldberg, E. A.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318809, H02P 540

Patent

active

044790821

ABSTRACT:
A motor control system in which an actual torque indication is derived from the motor and compared with a reference, or demand, torque. From the difference signal is derived a stator M.M.F. in magnitude and position relative to a reference frame locked to the rotor. Orthogonal components of this stator M.M.F. are derived and transformed to stator phase winding drive signals.

REFERENCES:
patent: 3700986 (1972-10-01), Cushman et al.
patent: 4132931 (1979-01-01), Okuyama et al.
patent: 4310791 (1982-01-01), Akamatsu
Hitachi Publication, Cycloconverter-Feb. Synchronous Motor drive 1AS78128F.
Field-Oriented Closed-Loop Control By Karl-Heinz Bayer et al., Siemens Review XXXIX, (1972), No. 5.

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