Battery Charger Based on High Step-Down DC-DC Converter for Light Electric Vehicle Charging Applications

被引：0

作者：

Akhtar, Mohammad Faisal ^{[1
]}

Raihan, Siti Rohani Sheikh ^{[1
]}

Abd Rahim, Nasrudin ^{[1
,2
]}

机构：

[1] Univ Malaya, Higher Inst Ctr Excellence HICoE, UM Power Energy Dedicated Adv Ctr UMPEDAC, Wisma R&D, Level 4, Jalan Pantai Baharu, Kuala Lumpur 59990, Malaysia

[2] King Abdulaziz Univ, Renewable Energy Res Grp, Jeddah 21589, Saudi Arabia

来源：

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING | 2025年

关键词：

Battery charger; DC-DC converter; High step-down; Light electric vehicle; Constant current-constant voltage;

D O I：

10.1007/s13369-025-10312-9

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

This paper proposes a battery charger system based around a high step-down DC-DC converter, which is capable of stepping down a 400-V input to a 25.6 V for charging a lithium-ion battery pack. The converter combines features of cascaded and interleaved buck converters, while also incorporating a switched capacitor. Hence, the converter can provide a higher step-down voltage gain for a given duty cycle. A constant current-constant voltage (CC-CV) control technique is used as the charging scheme. The battery charging capability of the converter is validated experimentally by building a 160-W lab-scale prototype for 0.5C and 1C charging rates. For result verification, a comparative analysis is conducted between the charging characteristics of the proposed prototype and a commercially available battery tester. The result shows a maximum average error of 0.87% and 0.56% for 0.5C and 1C charging rates, respectively. The converter's ability to achieve over 92% charging efficiency across various charging rates demonstrates its suitability for charging light electric vehicles (LEVs).

引用

页数：17

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