Soft-Switching Bridge-less Ćuk Converter based EV Charger for 2/3-Wheeler

Singudasu Anupam Sandeep, Pinkymol K.P.
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Abstract

The functioning of the Diode Bridge Rectifier (DBR) fed charger does not abide by the international regulations such as the IEC 6100-3-2 standard. In this paper different types of topologies for bridgeless Ćuk converter are being analyzed and based on that a finest bridgeless Ćuk converter is proposed for electric vehicle charger. The proposed bridgeless Ćuk converter enhances the overall efficiency by avoiding one switch and two passive elements. To overcome the violation of the recommended guidelines of IEC 6100-3-2 standard for output inductor, the single loop voltage control is replaced with double loop controller having an inner current loop control and outer output voltage control. The proposed converter topology is operated in DCM mode to have natural benefit of zero current switching. Furthermore, to reduce the switching losses of the new topology, soft-switching technique has been implemented.On the other hand, electric vehicle battery charging, is done with the help of flyback DC-DC converter with constant current and constant voltage control regimes. This CC-CV method safeguard the battery from overloading. The whole proposed topology is designed and implemented using MATLAB Simulink. The enhanced charger performance is demonstrated by comparing the proposed charger with the typical diode bridge rectifier fed charger.
软开关无桥Ćuk转换器为基础的电动汽车充电器2 - 3-惠勒
二极管桥式整流器(DBR)馈电充电器的功能不符合IEC 6100-3-2标准等国际规定。本文分析了不同类型的无桥Ćuk变换器的拓扑结构,并在此基础上提出了一种最优的电动汽车充电器用无桥Ćuk变换器。所提出的无桥Ćuk变换器通过避免一个开关和两个无源元件来提高整体效率。为了克服对输出电感的IEC 6100-3-2标准推荐指南的违反,将单回路电压控制替换为具有内电流环控制和外输出电压控制的双回路控制器。所提出的变换器拓扑在DCM模式下工作,具有零电流开关的天然优势。此外,为了降低新拓扑的开关损耗,采用了软开关技术。另一方面,电动汽车电池充电是借助具有恒流和恒压控制机制的反激DC-DC变换器来完成的。这种CC-CV方法可防止电池过载。利用MATLAB Simulink对整个拓扑结构进行了设计和实现。通过与典型的二极管桥式整流馈电充电器的比较,证明了该充电器的性能得到了提高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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