ISSN 2456-0235

International Journal of Modern Science and Technology

INDEXED IN 

​​​​​​​International Journal of Modern Science and Technology, Vol. 2, Special Issue 1, 2017, Pages 83-89.

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​Intelligent Control of Mosfet Inverter Grid-Tied Photovoltaic System

M. Hema, A. Balasubramanian, L. Vinothini
Department of Electrical and Electronics Engineering, Arasu Engineering College, Kumbakonam – 612 501. India.

​*Corresponding author’s e-mail: mathivananhema@gmail.com

​Abstract
TThis paper proposes a cost effective solar power generation in grid arrangement in a   resourceful approach. The photovoltaic systems consist of two converter stations between PV array and to the utility. It composed of transformer less inverter controlled by the fuzzy logic controller. The power generated from the solar panel improved by the boost converter that are connected next to the solar panel. For the transfer of DC to AC, the power generated from the solar panel DC and that are converted to AC by means of single phase inverter which generate AC output. However, the MOSFETs are limited to use in transformer less PV inverter due to the low reverse recovery characteristics of the body diode. In this project, a family of new transformer less PV inverter topology for single-phase grid-tied operation is proposed using super-junction MOSFETs and Sic diodes as no reverse recovery issues are required for the main power switches for unity power operation. The added clamping branch clamps the freewheeling voltage at the half of dc input voltage during the freewheeling period. Results showed a low current distortion at output. Finally, a 1kw prototype is built and tested to verify the theoretical analysis. The experimental results show 98.5% maximum efficiency and 98.32% European efficiency. Furthermore, to show the effectiveness, the proposed topology is compared with the other transformer less topologies.

​​Keywords: Common Mode Voltage; Converter; European Efficiency; Grid connected; Leakage Current; High efficiency; Photovoltaic; Transformer less.

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