Presenting a New High Gain Boost Converter with Inductive Coupling Energy Recovery Snubber for Renewable Energy Systems- Simulation, Design and Construction

Document Type : Research Article

Authors
Omid Sharifiyana
Majid Dehghani
Ghazanfar Shahgholian
Sayyed Mohamad Mehdi Mirtalaee
Najafabad Branch, Islamic Azad University
10.22059/jser.2023.356571.1283
Abstract
Solar energy is one of the most important sources of energy because it is a renewable and inexhaustible energy. This paper presents a new energy recovery snubber for a high step-up boost converter, which can be used in renewable energy systems such as photovoltaic. The proposed snubber enjoys useful advantages such as providing soft-switching conditions, high voltage gain, simplicity of control, and balanced voltage stresses. In this topology, the voltage stress on the diodes and switches is a small percentage of the output voltage. A simple boost and a fly-forward converter are used to increase the output voltage. A snubber circuit is used for the main switch to recover the energy of the snubber capacitor. Therefore, the main switch turns off at low voltage and it causes a reduction in turn off loss. Experimental results of a 48V to 380V and 500W laboratory prototype show efficiency greater than 95% and verify the given theoretical analysis.
Keywords
active snubber circuit
boost converter
fly-forward converter
new energy sources
solar energy
voltage gain coefficient
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Journal of Solar Energy Research
Volume 8, Issue 2
Spring 2023
Pages 1417-1436