Open AccessA Novel Transformer-less Grid Tie Inverter for Rooftop PV system
Author(s) -
Mahir Mahdee,
Chowdhury Mohammad Samir,
S. Abdul Rahman*,
Md. Shabuj Hossain,
Ahmed Mortuza Saleque,
Md. Abdur Rahman
Publication year - 2017
Publication title -
the aiub journal of science and engineering
Language(s) - English
Resource type - Journals
eISSN - 2520-4890
pISSN - 1608-3679
DOI - 10.53799/ajse.v16i1.30
Subject(s) - inverter , photovoltaic system , duty cycle , transformer , matlab , computer science , grid , grid tie inverter , grid connected photovoltaic power system , maximum power point tracking , electrical engineering , electronic engineering , topology (electrical circuits) , engineering , voltage , mathematics , geometry , operating system
This paper presents a relatively new concept for the design and implementation of a grid-tie inverter for photo voltaic (PV) systems. The proposed method will eliminate the uses of battery pack hence overall cost of any PV project will be significantly reduced. As the output of any PV array varies with the variation of solar irradiance hence a boost converter with PID regulated variable duty cycle has been used to keep a constant input to the inverter. Multilevel inverter topology has been proposed for utility grid connectivity. The proposed design is simulated in MATLAB/Simulink and a prototype is also implemented to verify the simulation results. The controllers are implemented in Arduino microcontroller board.