Electricity: power supply or regulation systems – For reactive power control – Using converter
Patent
1995-11-29
1997-12-16
Nguyen, Matthew V.
Electricity: power supply or regulation systems
For reactive power control
Using converter
323215, G05F 170
Patent
active
056989695
ABSTRACT:
An apparatus and method are disclosed for controlling the power flow in an electric transmission system including at least two transmission lines, each transmission line having two ends and carrying alternating current at a selected transmission line voltage and fundamental frequency between the ends. At least two alternating voltages at the fundamental frequency of the alternating currents flowing in the transmission lines, with variable magnitude and controllable phase angle relative to the transmission line current, are generated and coupled in series with the transmission lines. The magnitude and phase of each generated voltage are controlled selectively and individually to adjust the effective reactive and real impedance of each transmission line, to control the real power transmitted between the two ends of the transmission line and, concurrently, to control the amount of real power individually transferred between the transmission lines.
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Lenart R. P.
Nguyen Matthew V.
Westinghouse Electric Corporation
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