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ARPN Journal of Engineering and Applied Sciences

Bridgeless isolated sepic PFC for EV battery charging using ANN controller

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Author D. Meena, V. Padmathilagam and A. Arulvizhi
e-ISSN 1819-6608
On Pages 623-632
Volume No. 18
Issue No. 06
Issue Date April 30, 2023
Keywords PFC, EV, power quality, bridgeless isolated SEPIC converter, ANN controller, HCC.


The power quality of an Electric Vehicle (EV) battery charger is improved in this work using a bridgeless isolated single ended primary inductance converter (SEPIC). Owing to the excessive amount of conduction losses associated with the conventional Diode Bridge Rectifier (DBR) based Power Factor Correction (PFC) circuit; a Bridgeless circuit model is preferred in this work. The safe functioning of the PFC circuit is further ensured by selecting an isolated topology over a non-isolated converter topology. With the use of an artificial neural network (ANN) controller, the converter's operation is improved in terms of rising time, overshoot, steady state error and settling time. Distortions in the input current are curtailed with the aid of Hysteresis Current Controller (HCC). The entire work of the proposed converter in terms of design equations and several operating modes is detailed elaborately. The input current displays functioning with a unity power factor for the full charging period. The proposed Bridgeless Isolated SEPIC PFC's efficacy in improving the power quality of the EV charger system is determined using simulation results from MATLAB and hardware implementation utilising a DSP30F411 controller.


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