Abstract :

With The Increasing Penetration Of Electric Mobility, The Development Of Efficient, Reliable, And Power-qualityenhanced Charging Systems For Light Electric Vehicles (LEVs) Has Become Essential. This Project Presents A Transformer-less Bridgeless Single-stage Converter For Electric Vehicle (EV) Charging Applications Using Fuzzy Logic Control To Achieve High Efficiency And Improved Power Quality. The Proposed Topology Integrates Power Factor Correction (PFC) And DC–DC Conversion Into A Single Stage, Thereby Reducing Component Count, Size, And Overall Cost. By Eliminating The Conventional Front-end Diode Bridge, The Charger Significantly Reduces Conduction Losses And Enhances Performance Under Varying Grid And Load Conditions. The System Operates In Discontinuous Conduction Mode (DCM), Which Minimizes Control Complexity And Sensor Requirements. A Fuzzy Logic Controller (FLC) Optimizes Dynamic Response And Voltage Regulation While Maintaining Constant-current (CC) And Constantvoltage (CV) Charging Modes. Simulation And Hardware Results Validate That The Proposed Charger Achieves Reduced Total Harmonic Distortion (THD), Near-unity Power Factor, And Higher Overall Efficiency Compared To Conventional Two-stage And Transformer-based Systems. This Solution Offers A Cost-effective And Compact Charging Alternative For Modern LEVs Such As E-bikes, E-scooters, And E-rickshaws. Keywords: Transformer-less Charger, Bridgeless Converter, Fuzzy Logic Controller (FLC), Power Factor Correction (PFC), Total Harmonic Distortion (THD), Light Electric Vehicle (LEV), Discontinuous Conduction Mode (DCM).

Published:

23-10-2025

Issue:

Vol. 25 No. 10 (2025)

Page Nos:

98-109

Section:

Articles

License:

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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