Reactive power compensating cycloconverter

Details Reactive power compensating cycloconverter Reactive power compensating cycloconverter

1983-12-16

1985-07-16

Beha, Jr., William H.

Electricity: power supply or regulation systems

For reactive power control

Using converter

363161, 323211, H02J 318

Patent

active

045299250

ABSTRACT:
A power control apparatus which includes a cycloconverter having thyristors in which a circulating current flows, for supplying a compensating current to AC power lines; capacitors for supplying a reactive current component of the compensating current to the thyristors; a trigger control circuit for controlling the triggering of the thyristors; a detector coupled to the cycloconverter, for detecting from switching currents flowing through the thyristors a circulating signal corresponding to the circulating current. The compensating current serves to improve the power factor of the AC lines as well as to reduce higher harmonic currents on the AC lines. The circulating signal is fed back to the trigger control circuit so that the amount of the circulating current is kept substantially constant according to a negative feedback operation.

REFERENCES:
patent: 4013937 (1977-03-01), Pelly et al.
Paper No. 608 in the 1982 National Meeting of Denki Gakkai (the Institute of Electronic Engineers), T. Fukao et al.

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