Ferroresonant constant AC voltage regulator

Details Ferroresonant constant AC voltage regulator Ferroresonant constant AC voltage regulator

1985-08-12

1987-02-10

Wong, Peter S.

Electricity: power supply or regulation systems

For reactive power control

Using impedance

323248, 323249, H02J 318

Patent

active

046425497

ABSTRACT:
A constant voltage regulator involving a feedback loop by which frequency dependence may be eliminated and at the same time, hunting phenomenon in case of low load can be suppressed without inserting a dummy resistance or a reactor in its circuit, whereby high reliability may be compatible with low cost.
The constant voltage regulator comprises a linear reactor and a resonance capacitor connected in series to an input power source, and a variable reactor connected in parallel with said resonance capacitor and involves a feedback loop, a saturable reactor being used as said variable reactor, and current flowing through said saturable reactor being subjected to feedback control in response to load or output voltage.

REFERENCES:
patent: 2246177 (1941-06-01), Levoy, Jr.
patent: 3037160 (1962-05-01), Manteuffel
patent: 3092768 (1963-06-01), Kusko
patent: 4339705 (1982-07-01), Kelley
Hunter, "Variable Flux-Reset Ferroresonant Voltage Regulator", IEEE Transactions on Magnetics, vol. MAG-7, No. 3, Sep. 1971, pp. 564-567.

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