Microcontroller based power inverter for grid connected PV system

Author

Islam, Md Manirul ; Rana, Md Masud ; Mitul, Abu Farzan ; Khan, Md Manirul Alam ; Talukder, Anik ; Reja, Mohammad Istiaque ; Sarker, Niranjan ; Hoque, Mohammad Nazmul ; Hazari, Noor Ahmad

Author_Institution

Dept. of Electr. & Electron. Eng., Khulna Univ. of Eng. & Technol., Khulna, Bangladesh

fYear

2012

fDate

7-8 July 2012

Firstpage

45

Lastpage

49

Abstract

This paper represents the microcontroller based modified sine wave (MSW) generator for power inverter which is connected to the PV (Photovoltaic) system. The advantage of this inverter is the use of a low cost microcontroller that generates MSW having low harmonics and voltage regulation is fully controlled by microcontroller only which is approximately zero. It can also vary the frequency of inverter. Microcontroller ATMEGA 8L is able to store the required commands to generate the necessary MSW. In this paper how MSW signal is generated by microcontroller is reviewed. Subsequently hardware configurations of the microcontroller, algorithm, flowchart, voltage regulation and frequency control circuit using microcontroller are discussed. Finally the simulated results are shown in this paper.

Keywords

flowcharting; frequency control; invertors; microcontrollers; photovoltaic power systems; power grids; power system harmonics; signal generators; voltage control; waveform generators; MSW generator; MSW signal generation; flowchart; frequency control circuit; grid connected PV system; microcontroller ATMEGA 8L; modified sine wave generator; photovoltaic system; power inverter; voltage regulation; Frequency control; Harmonic analysis; Inverters; Microcontrollers; Power transformers; Pulse width modulation; Voltage control; DAC; FFT; HF; MSW; THD; frequency control; voltage regulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Green and Ubiquitous Technology (GUT), 2012 International Conference on

Conference_Location

Jakarta

Print_ISBN

978-1-4577-2172-4

Type

conf

DOI

10.1109/GUT.2012.6344185

Filename

6344185