Efficient PV micro-inverter with isolated output

Author

Pandya, V. ; Agarwala, A.K.

Author_Institution

Instrum. Design Dev. Centre, Indian Inst. of Technol. Delhi, New Delhi, India

fYear

2012

fDate

19-22 Dec. 2012

Firstpage

1

Lastpage

5

Abstract

A single stage bridge type photovoltaic (PV) micro-inverter is proposed with isolated output for single phase configuration. The proposed micro-inverter uses at the input a full bridge topology using four power switches. A rectified sine wave at 50Hz with 310V amplitude is generated by implementing sinusoidal pulse width modulation (SPWM) at 100 KHz. An unfolder in a bridge configuration creates a 220V-50Hz output sine wave. The proposed micro-inverter has advantages like small size, low power losses and a simple architecture with single stage operation.

Keywords

PWM invertors; photovoltaic power systems; switching convertors; PV microinverter; SPWM; frequency 100 kHz; frequency 50 Hz; full bridge topology; low power losses; power switches; rectified sine wave; single phase configuration; single stage bridge type photovoltaic microinverter; sinusoidal pulse width modulation; voltage 220 V; voltage 310 V; Bridge circuits; Inverters; Maximum power point trackers; Photovoltaic systems; Switches; Switching frequency; Micro-inverter; Photo-voltaic (PV) power; PsPice;

fLanguage

English

Publisher

ieee

Conference_Titel

Power India Conference, 2012 IEEE Fifth

Conference_Location

Murthal

Print_ISBN

978-1-4673-0763-5

Type

conf

DOI

10.1109/PowerI.2012.6479537

Filename

6479537