This work presents a DC-type fast electric vehicle battery charger featuring low switching losses. Herein, a conventional three-phase two-level voltage source rectifier with low capacitive energy storage operates with a discontinuous PWM modulation where each phase-legs stops switching for 240° of the grid fundamental period, i.e. only a single phase-leg switch every 60°. In this case, this AC-DC converter loses voltage controllability of the DC-link and thus a buck-type DC-DC converter is cascaded in order to provide the necessary voltage regulation and current limitation for the charging process of the electric vehicle. The presented circuit is benchmarked against other solutions for a designed 50 kW power capability battery charger when considering the charging of a 30 kWh Nissan Leaf. The results show a superior power efficiency of the studied system.

Original languageEnglish
Title of host publication2019 AEIT International Conference of Electrical and Electronic Technologies for Automotive (AEIT AUTOMOTIVE)
Place of PublicationMilano
PublisherIEEE
Pages1-6
Number of pages6
ISBN (Electronic)978-8-8872-3743-6
ISBN (Print)978-1-7281-3278-5
DOIs
Publication statusPublished - 2019
Event2019 AEIT International Conference of Electrical and Electronic Technologies for Automotive, AEIT AUTOMOTIVE 2019 - Turin, Italy
Duration: 2 Jul 20194 Jul 2019

Conference

Conference2019 AEIT International Conference of Electrical and Electronic Technologies for Automotive, AEIT AUTOMOTIVE 2019
CountryItaly
CityTurin
Period2/07/194/07/19

    Research areas

  • Electric Vehicle, Fast Charger, Rectifier

ID: 56952979