An Integrated Nine-Switch Power Conditioner Parallel With Transformer For Power Quality Enhancement
2015 IEEE POWER & ENERGY SOCIETY GENERAL MEETING(2015)
Abstract
in this paper, a configuration with a dual-port power converter bridging two sides of the transformer is proposed for power quality enhancement in distribution systems. The proposed configuration employs a nine-switch power converter instead of the traditional back-to-back power converter with 12 switches. The high voltage side port works as a double resonance injection hybrid active power filter to enhance the injection ability of harmonic currents, while the low voltage side port works as a traditional shunt active filter, thus the harmonic and reactive currents to the transformer can be reduced while the stability of DC-link voltage is enhanced. The simulation shows the validity of the proposed configuration.
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Key words
double resonance injection branch,hybrid active power filter,injection branch,nine-switch converter,power quality,power transformer
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