HFL PV micro-inverter with front-end current-fed converter and half-wave cycloconverter

Author

Nayanasiri, D.R. ; Vilathgamuwa, D.M. ; Maskell, D.L.

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2014

fDate

18-21 May 2014

Firstpage

3598

Lastpage

3603

Abstract

A high-frequency-link micro inverter is proposed with a front-end dual inductor push-pull converter and a grid-connected half-wave cycloconverter. Pulse width modulation is used to control the front-end converter and phase shift modulation is used at the back-end converter to obtain grid synchronized output current. A series resonant circuit and high-frequency transformer are used to interface the front-end and the back-end converters. The operation of the proposed micro-inverter in grid-connected mode is validated using MATLAB/Simpower simulation. Experimental results are provided to further validate the operation.

Keywords

PWM power convertors; circuit resonance; cycloconvertors; distributed power generation; high-frequency transformers; inductors; invertors; photovoltaic power systems; power generation control; power grids; power system interconnection; resonant power convertors; HFL PV microinverter; back-end converter; front end dual inductor push-pull converter; front-end current fed converter control; grid connected half-wave cycIoconverter; grid synchronized output current; high frequency Iink microinverter; high-frequency transformer; phase shift modulation; pulse width modulation; series resonant circuit; Inverters; Logic gates; Switches; Video recording; dual inductor push-pull converter; half-wave cycloconverter; high-ferqunecy-link micro-inverter; phase shift modulation; pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA), 2014 International

Conference_Location

Hiroshima

Type

conf

DOI

10.1109/IPEC.2014.6870015

Filename

6870015