Resonant Based DC-DC Converter for Fast EV Battery Charging Applications Using Novel Adder Architecture - Analysis, Design & Resonant Components Tolerance Effects

2023 IEEE Conference on Power Electronics and Renewable Energy (CPERE) Pub Date : 2023-02-19 DOI:10.1109/CPERE56564.2023.10119598

S. Basu, P. Jain

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Abstract

Consistent efforts are being made to enable electrification of the transport industry for a cleaner environment. Though there has been substantial increase in electric vehicles (EVs); lack of adequate and quick charging points are proving to be major stumbling blocks to the wide spread adoption of electric vehicles. This paper presents a novel multi-module series connected dual active bridge resonant DC-DC converter with a unique adder configuration for obtaining wide output voltage (150V-920V) for EV battery charging applications. The system is conceived with the ability to connect multiple modules in parallel to facilitate the fast charging. A detailed analysis is performed to select components and also to briefly highlight the adverse effects of component tolerances in these multi-module systems. The manuscript suggests a simple modification in the temporal characteristics of waveform generated by the converter for addressing the component variation problem. A scaled down experimental prototype (voltage range of 42V-223V and power range of 0. 2kW-0.875kW) showing 95.5% peak efficiency is built to demonstrate proof of concept.

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基于谐振的基于新型加法器结构的快速充电应用的DC-DC变换器——分析、设计和谐振元件公差效应

目前正在不断努力使运输业电气化，以创造更清洁的环境。尽管电动汽车(ev)的数量大幅增加;缺乏足够和快速的充电点被证明是电动汽车广泛采用的主要障碍。本文提出了一种新型的多模块串联双有源桥谐振DC-DC变换器，该变换器具有独特的加法器结构，可获得宽输出电压(150V-920V)，用于电动汽车电池充电。该系统具有并联多个模块的能力，以方便快速充电。进行了详细的分析，以选择组件，并简要地强调了这些多模块系统中组件公差的不利影响。本文建议对转换器产生的波形的时间特性进行简单的修改，以解决分量变化问题。按比例缩小的实验样机(电压范围42V-223V，功率范围0。2kW-0.875kW)，峰值效率为95.5%，用于验证概念。

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2023 IEEE Conference on Power Electronics and Renewable Energy (CPERE)

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