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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Tam, Nguyen Van Minh
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Control & Systems Engineering Electrical & Electronics Engineering

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LCL filter based high power density AC/DC converter for fast charging applications Tuyen, Nguyen Dinh; Tam, Nguyen Van Minh; Hoa, Truong Phuoc
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 4: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i4.pp2308-2322

Abstract

This paper introduces a LCL filter design tailored for a 40 kW three-phase grid-connected converter utilized in electric vehicle onboard fast chargers. In contrast to conventional filters, the LCL filter finds extensive application in AC/DC converters for power factor correction, thanks to its enhanced harmonic reduction and improved stability of the system. The parameters of LCL filter are devised based on considerations such as the system’s power, the frequency of the alternating current (AC) input, and the PWM frequency, determined through simulation and comprehensive theoretical analysis. By implementing a dual-current closed-loop control strategy, the system ensures a robust response for both the current on the AC side of the converter and the voltage on the direct current (DC) side. The analysis of the system’s performance includes rapid dynamic response, system efficiency, AC current harmonic, and DC ripple voltage. Both simulation and experimental results are presented to validate the proposed design for the LCL filter.
Co-Authors Hoa, Truong Phuoc Tuyen, Nguyen Dinh