Reactive power compensation device

Details Reactive power compensation device Reactive power compensation device

1987-08-31

1988-06-21

Beha, Jr., William H.

Electricity: power supply or regulation systems

For reactive power control

Using converter

323210, G05F 170

Patent

active

047527269

ABSTRACT:
A reactive power compensation device for a system including an AC power source and a load. The device comprises a first detection circuit for detecting reactive power in the load; a first reactive power compensation circuit, having a reactor, a thyristor and a capacitor, the thyristor being controlled based on the detected reactive power in the load; a second detection circuit for detecting total reactive power in the load and the first compensation circuit; a second reactive power compensation circuit having a self-commutated power converter connected in parallel to the load. The second compensation circuit is controlled to minimize the detected total reactive power in the load and the first compensation circuit.

REFERENCES:
patent: 3936727 (1976-02-01), Kelley et al.
patent: 4028614 (1977-06-01), Kelley
patent: 4602199 (1986-07-01), Walker
The Transactions of the Institute of Electrical Engineers of Japan, vol. 103-B, No. 7, pp. 483-490, "Generalized Theory of the Instantaneous Reactive Power and its Applications", H. E. Akagi et al., Jul. 1983 (untranslated).

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