A three-phase double conversion AC voltage regulator with fictitious DC-link

A three-phase double conversion AC voltage regulator with fictitious dc-link is proposed. The proposed scheme combines a rectifier with an inverter in a stage. Hence, the proposed voltage regulator not only reduces the number of main switches but decreases the cost. A small AC capacitance is used, w...

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Bibliographic Details
Main Authors: Jiang, Maoh-Chin, Chang, Kuei-Wu, Lin, Yu-Kai
Format: Conference Proceeding
Language:English
Subjects:
AC voltage regulator
Capacitors
Fictitious dc-link
Inverters
Power quality
Rectifiers
Regulators
Simulation
Three-leg
Voltage control
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Description
Summary:A three-phase double conversion AC voltage regulator with fictitious dc-link is proposed. The proposed scheme combines a rectifier with an inverter in a stage. Hence, the proposed voltage regulator not only reduces the number of main switches but decreases the cost. A small AC capacitance is used, which makes it possible to replace an electrolytic capacitor with a film capacitor, not only the size of the dc link capacitor can be reduced, but the lifetime of the voltage regulator can be increased. Furthermore, the proposed scheme can compensate the voltage disturbance like under-voltage, over-voltage, voltage sag and voltage swell, effectively. After all, some simulation results are provided to demonstrate the performance of the proposed voltage regulator.
ISSN:2158-2297
DOI:10.1109/ICIEA.2018.8397862