A single-phase grid-connected inverter with an active power decoupling circuit

This paper presents a new single-phase grid-connected inverter with an active power decoupling circuit. In the conventional inverter, electrolytic capacitor with large capacitance has been used in order to balance the instantaneous input and output power. But, the life of the electrolytic capacitor...

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Bibliographic Details
Published in2012 24th Chinese Control and Decision Conference (CCDC) pp. 2806 - 2810
Main Authors Chen Zonxiang, Ling Chao, Ye Fenghua, Ge Lusheng
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2012
Subjects
active power decoupling circuit
Bridge circuits
Capacitance
Capacitors
Inverters
MPPT
photovoltaic (PV)
Power generation
power pulsation
single-phase inverter
Topology
Voltage control
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Summary:This paper presents a new single-phase grid-connected inverter with an active power decoupling circuit. In the conventional inverter, electrolytic capacitor with large capacitance has been used in order to balance the instantaneous input and output power. But, the life of the electrolytic capacitor is also greatly influenced by the temperature. This paper presents a new single-phase grid connected inverter that has an active power decoupling circuit. A most distinctive feature of the proposed inverter is that the ripple energy appears in the dc-link capacitor is processed by the active power decoupling circuit. Hence, the small film capacitor could substitute for the large electrolytic capacitor. Finally, the new inverter is verified through simulation.
ISBN:9781457720734
1457720736
ISSN:1948-9439
1948-9447
DOI:10.1109/CCDC.2012.6244448