Static VAR generator compensating control circuit and method for

Details Static VAR generator compensating control circuit and method for Static VAR generator compensating control circuit and method for

1978-02-23

1979-10-23

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

H02J 318

Patent

active

041722345

ABSTRACT:
A control circuit for a static VAR generator measures load power during consecutive half cycles of the source voltage. This information, together with load voltage and load current information is used to determine the firing angles of the VAR generator thyristors for providing compensating current for keeping the source current in phase with the source voltage and for balancing the source currents in a three-phase electrical system. The total computation time for determining the firing angles extends into the half cycle in which correction is to be applied beyond a fixed minimum firing angle.

REFERENCES:
patent: 3999117 (1976-12-01), Gyugyi et al.
patent: 4000455 (1976-12-01), Gyugyi et al.

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