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Flyback micro-inverter with reactive power support capability

Authors: Edwin Fonkwe; James Kirtley; Jorge Elizondo;

Flyback micro-inverter with reactive power support capability

Abstract

AC modules or micro-inverters (MIC) have increasing importance in photovoltaic (PV) systems. The flyback MIC with a pseudo-dc link (FMICpseudo-dc) is a well-studied topology, in which zero-crossing notching in the output current has been observed. One contribution of this paper is a theoretical analysis and experimental results to explain this zero-crossing distortion. It is argued that some distortion is inevitable in this topology's traditional configuration. A second contribution is a current decoupling circuit that is proposed to mitigate the zero crossing distortion issue, allowing the converter to effectively operate as a controlled reactive power source with acceptable total harmonic distortion (THD). This is supported by theoretical analysis and simulation results.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
8
Average
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