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Analysis of Solar PV Inverter based on PIC Microcontroller and Sinusoidal Pulse Width Modulation

Author(s):

Shamin Pandit , Kalol Institute of Technology, Kalol; Maulik Sanghvi, Embelink Technologies

Keywords:

DC-AC Inverter, DC-DC Converter, LC Filter, Sinusoidal Pulse Width Modulation (SPWM), Solar PV System

Abstract

This paper focuses on design and development of a solar PV inverter capable of delivering photovoltaic energy to load in efficient and cost effective manner so that common people can use it. The solar inverter in this paper is considered for a stand-alone solar PV system, for operation of single phase AC load at grid frequency and voltage. Interfacing the solar inverter with AC load involves three major tasks. One is providing regulated output of 230Vrms AC. Second is, it should provide output at 50Hz frequency. Third is, it should have sine wave output. The major challenges to be addressed are, boosting the DC voltage of Solar Module and converting it to regulated AC voltage. So this paper proposes a solution by dividing the whole Inverter system into two major stages: DC-DC Converter and DC-AC Inverter. In the DC-DC Converter stage, Half-Bridge Push-Pull topology is used which implements a high frequency transformer. In the DC-AC inverter stage, full bridge topology is used implementing SPWM switching technique using PIC controller. Based on this design, a hardware prototype of Solar PV Inverter is developed for 100VA.

Other Details

Paper ID: IJSRDV4I80007
Published in: Volume : 4, Issue : 8
Publication Date: 01/11/2016
Page(s): 15-21

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