Method and apparatus for generating an air gap flux signal for a

Details Method and apparatus for generating an air gap flux signal for a Method and apparatus for generating an air gap flux signal for a

1979-02-26

1981-01-13

Truhe, J. V.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318798, 324158MG, H02P 528, H02P 736, G01R 3300

Patent

active

042451817

ABSTRACT:
A substantially smooth, continuous and sinusoidal air gap flux signal for an AC machine is provided from machine terminal voltages and line currents. A voltage representative of the machine stator voltage is combined with a voltage representative of the resistive voltage drop component across the stator to yield an intermediate voltage. This intermediate voltage is integrated and combined with a voltage representative of the stator flux leakage reactance to yield an air gap flux signal proportional to the difference between the integral of the intermediate voltage and the stator flux leakage reactance voltage.

REFERENCES:
patent: 3441823 (1969-04-01), Schlabach
patent: 3593083 (1971-07-01), Blaschke
patent: 3775652 (1973-11-01), Bowler et al.
patent: 3855529 (1974-12-01), Langweiler
patent: 3909687 (1975-09-01), Abbondanti
patent: 4011489 (1977-03-01), Franz et al.
patent: 4119893 (1978-10-01), Bayer et al.

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