Patent ID: 9639104
Date: 2017-05-02
CPC Classifications: G05F

Claim:
1. A network voltage regulating system, comprising: a transformer configured to step down voltages, the transformer having a primary side and a secondary side; a volt-ampere reactive (VAR) source coupled to the secondary side of the transformer and configured to generate reactive power; a control module configured to regulate the reactive power generated by the VAR source according to an output of the transformer; a current sensor coupled to the secondary side of the transformer and configured to measure an output current of the transformer; and a voltage sensor coupled to the secondary side of the transformer and configured to measure an output voltage of the transformer; wherein the control module is configured to determine a power factor according to the output voltage and the output current, regulate the reactive power such that the power factor is a predetermined value, and compare the power factor to a reference power factor.