Design of DC Fast Charging Buck Converter for LFP Battery on Electric Car
Trias Andromeda, Betantya Nugroho, Mohamad Isnaeni Romadhon, Joga Setiawan, Ismoyo Haryanto, Hermawan, Iwan Setiawan, Mochammad Facta, Abd. Rahim Mat Sidek
Universitas Diponegoro
Abstract
Abstract— Electric Vehicle (EV) cars have developed very rapidly. In line with a growing number on the streets, the need for electric vehicle battery charging stations is increasingly expected. In community, there are three levels of battery charging stations that have been implemented. Level 1 is a charger with a 120 Vac source and it is the slowest charger level. Level 2 is a familiar charger found in homes and garages use a 240 Vac source. While level 3 is a Direct Current Fast Charger (DCFC) charger which is urgently needed for electric vehicle (EV). This paper will present the results of research on charging a Lithium Iron Phosphate (LFP) battery using a DCFC buck converter. The converter is dedicated to be a charger of the EV. The result shows that the proposed converter has good performance because it has successfully charged the battery pack at 4 Ampere in the initial stage and it turned into full charge stage in 30 minutes at stable voltage at 14.4 Volt.
Keywords: EV, Electric Car, DCFC, Buck Converter, LFP Battery
Topic: Power Electronics and Its Applications