Analysis of Isolated and Non-Isolated Zeta Converter based on Battery Charger

Abstract

Conventional battery chargers are due to the non-linear nature of a diode-bridge rectifier used for the AC-DC conversion. A single phase non-isolated zeta converter topology is designed and implemented for charging a 100 Ah,48 V lead acid battery[1].The challenges of non-isolated zeta converter topology is reduced heat loss and smooth charge of battery. The simulation results shows that THD of the input current is low as compared to isolated zeta converter.The proposed converter is controlled using the sliding mode controller(SMC). By proper tuning the controller changes the charging mode from constant current to constant voltage. The analysis between the isolated and non-isolated battery shows that the non-isolated battery charger can achieve the increasing the state of charge and smooth charging. percent italics mode