University of Tehran Journal of Solar Energy Research 2588-3097 8 2 2023 04 01 Presenting a New High Gain Boost Converter with Inductive Coupling Energy Recovery Snubber for Renewable Energy Systems- Simulation, Design and Construction 1417 1436 91775 10.22059/jser.2023.356571.1283 EN Omid Sharifiyana Najafabad Branch, Islamic Azad University Majid Dehghani Najafabad Branch, Islamic Azad University Ghazanfar Shahgholian Najafabad Branch, Islamic Azad University Sayyed Mohamad Mehdi Mirtalaee Najafabad Branch, Islamic Azad University Journal Article 2023 03 10 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. https://jser.ut.ac.ir/article_91775_09a436ce0a14371f3ccdd162a397f7a5.pdf