A simple flyback microinverter for solar energy systems with variable frequency controlled ZVS

Author

Mukherjee, Arjun ; Pahlevaninezhad, Majid ; Moschopoulos, Gerry

Author_Institution

Dept. of Electr. Eng., Western Univ., London, ON, Canada

fYear

2013

fDate

15-19 Sept. 2013

Firstpage

2026

Lastpage

2031

Abstract

A novel technique for improving the efficiency of a single stage flyback microinverter is proposed in this paper. The technique is based on combining the following two soft-switching mechanisms: A simple snubber, consisting of just a few passive elements and a variable frequency control zero-voltage switching (ZVS) technique. In the paper, the microinverter with the passive snubber is presented, the modes of operation of the converter are discussed and analyzed, the converter´s ZVS operation is explained and the design of the converter is demonstrated. Experimental results obtained from a lab prototype are presented as well.

Keywords

frequency control; invertors; power generation control; snubbers; solar power stations; zero voltage switching; passive element; passive snubber; single-stage flyback microinverter; soft-switching mechanism; solar energy systems; variable frequency-controlled ZVS technique; zero-voltage switching; Capacitors; Clamps; Snubbers; Switches; Switching frequency; Windings; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2013 IEEE

Conference_Location

Denver, CO

Type

conf

DOI

10.1109/ECCE.2013.6646956

Filename

6646956