Forward-type micro-inverter with current decoupling
Journal
2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013
Pages
3277-3282
Date Issued
2013
Author(s)
Abstract
A forward-type micro-inverter with current decoupling is proposed to eliminate the usage of large electrolytic capacitors while remains the maximum power point tracking (MPPT) function for the PV panel. The proposed micro-inverter consists of a current decoupling tank (CDT) to absorb the partial PV current while a rectified sinusoidal current is injected into the AC grid. Therefore, the constant PV current can be decoupled into sinusoidal AC current. The circuit configuration, operation modes, and control strategy of the proposed micro-inverter are introduced. The proposed micro-inverter has reduced turns-ratio of the transformer and its magnetizing energy can be recycled. Finally, simulation and experimental results are presented to verify the feasibility of the current decoupling function for the proposed micro-inverter. © 2013 IEEE.
Subjects
film capacitor; Micro-inverter; power decoupling
SDGs
Other Subjects
Circuit configurations; Control strategies; Current decoupling; Film capacitors; Maximum Power Point Tracking; Micro inverters; Power decoupling; Sinusoidal currents; Electrolytic capacitors; Photovoltaic cells; Energy conversion
Type
conference paper