Half-Bridge LLC Resonant Converter Design for High Voltage Battery to Low Voltage Battery Conversion in Electric Vehicles

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

The LLC resonant converter has high-efficiency and low switching losses by achieving Zero Voltage Switching (ZVS). Therefore, it has been widely used in the industry. In conventional vehicles, the low voltage systems are fed by the 12V battery. However, several appliances such as the heater, air-conditioning compressor operate at a few kilowatt regions. Thus, the amount of the current drawn by these appliances is relatively higher with the conventional 12V system. To compensate this high current, a 48V level is obtained from the high-voltage batteries via a dc-to-dc converter. In this study, 3kW Half-Bridge LLC resonant converter is designed for high voltage battery to low voltage battery used in electric vehicles by using PSIM. 48V output voltage is regulated with 0.17% by the proposed converter in several cases, which are varied input voltage and loads by changing switching frequency owing to control algorithm. In terms of unit step response, rising and settling times are 5.55 ms and 1.06 ms, respectively.

Original languageEnglish
Title of host publication2021 13th International Conference on Electrical and Electronics Engineering, ELECO 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages565-569
Number of pages5
ISBN (Electronic)9786050114379
DOIs
Publication statusPublished - 2021
Event13th International Conference on Electrical and Electronics Engineering, ELECO 2021 - Virtual, Bursa, Turkey
Duration: 25 Nov 202127 Nov 2021

Publication series

Name2021 13th International Conference on Electrical and Electronics Engineering, ELECO 2021

Conference

Conference13th International Conference on Electrical and Electronics Engineering, ELECO 2021
Country/TerritoryTurkey
CityVirtual, Bursa
Period25/11/2127/11/21

Bibliographical note

Publisher Copyright:
© 2021 Chamber of Turkish Electrical Engineers.

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