Temporal balancing of electrical stress on FACTS devices in FACTS based distributed impedance injection units

Temporal balancing of electrical stress on FACTS devices in FACTS based distributed impedance injection units

An impedance injection unit (IIU) system is coupled to a high-voltage (HV) transmission line. The IIUs are activated in sequences of activation in successive time periods. This injects an impedance waveform onto the HV transmission line. The ordering of IIUs in the sequences of activation is repeate...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Ginart, Antonio, Inam, Haroon, Garrison Stuber, Michael Thomas, Adiga Manoor, Shreesha
Format: Patent
Sprache:eng
Schlagworte:
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONTROLLING
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:An impedance injection unit (IIU) system is coupled to a high-voltage (HV) transmission line. The IIUs are activated in sequences of activation in successive time periods. This injects an impedance waveform onto the HV transmission line. The ordering of IIUs in the sequences of activation is repeatedly changed in successive time periods. This equalizes electrical stress across the IIUs used, leading to overall improvement in IIU system lifetimes.