Reactive power compensator for electric power system

Details Reactive power compensator for electric power system Reactive power compensator for electric power system

1989-01-04

1990-01-30

Wong, Peter S.

Electricity: power supply or regulation systems

For reactive power control

Using impedance

G05F 170

Patent

active

048975931

ABSTRACT:
A reactive power compensator for an electric power system includes a voltage control circuit which amplifies a differential voltage between the potential command value and a potential signal corresponding to the voltage of the electric power system detected by a potential detector. The voltage control circuit outputs a reactive power compensation control signal. The control signal is fed to a reactive power output circuit which controls the voltage of the power system in order to compensate for reactive power in the power system. A gain calculation circuit is provided for setting the gain of the voltage control circuit to a value proportional to the level of short-circuit capacity of the system power on the system power supply side of the reactive power output circuit.

REFERENCES:
patent: 3942100 (1976-03-01), Kauferle et al.
patent: 4121150 (1978-10-01), Kelley, Jr.
patent: 4479084 (1984-10-01), Ogawa et al.
Sunada et al., "Application of Static VAR Compensator for AC/DC Interconnected Power System", IPSC SC14 Symposium, 400-02, (Sep., 1987).

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