Scholarlink

<p>The global increase in electric vehicle (EV) adoption has prompted researchers to develop innovative charging topologies that reduce charging time while improving efficiency, power density, and power quality. Despite the growing popularity of DC fast charging, Level 2 charging stations remain widely used. This paper introduces two dual-stage topologies based on modified isolated single-ended primary inductance converter (SEPIC) for Level 2 charging applications. These proposed topologies are unidirectional and designed with two ports for charging at different voltage levels. The incorporation of bridgeless power factor correction (PFC) topologies for front-end rectification enhances the power quality of the chargers. The proposed EV chargers are modeled in MATLAB/Simulink and their performance verified under source voltage fluctuations. Mathematical modeling and dynamic analysis are performed on the individual converters used in the proposed chargers, and a comparative analysis of the charger topologies is conducted in terms of device count, control strategy, power quality metrics, and overall efficiency. The simulation results indicate that the suggested SEPIC-based EV chargers demonstrate improved power quality, better efficiency, and reduced charging time, making them optimal for Level 2 charging applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Single-Phase Two-Stage Dual-Port EV Charger to Handle Wide Input Variations for G2V Applications

  • 期刊论文

  • 发表日期：

    2025年3月9日

查看全文
  • Radhika P.,
  • Mohamed Imran A.

摘要

The global increase in electric vehicle (EV) adoption has prompted researchers to develop innovative charging topologies that reduce charging time while improving efficiency, power density, and power quality. Despite the growing popularity of DC fast charging, Level 2 charging stations remain widely used. This paper introduces two dual-stage topologies based on modified isolated single-ended primary inductance converter (SEPIC) for Level 2 charging applications. These proposed topologies are unidirectional and designed with two ports for charging at different voltage levels. The incorporation of bridgeless power factor correction (PFC) topologies for front-end rectification enhances the power quality of the chargers. The proposed EV chargers are modeled in MATLAB/Simulink and their performance verified under source voltage fluctuations. Mathematical modeling and dynamic analysis are performed on the individual converters used in the proposed chargers, and a comparative analysis of the charger topologies is conducted in terms of device count, control strategy, power quality metrics, and overall efficiency. The simulation results indicate that the suggested SEPIC-based EV chargers demonstrate improved power quality, better efficiency, and reduced charging time, making them optimal for Level 2 charging applications.