An advanced multilevel converter topology with reduced switching elements

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2014-10-01 DOI:10.1109/IECON.2014.7048655

A. Salem, M. Elsied, J. Druant, F. D. Belie, A. Oukaour, H. Gualous, J. Melkebeek

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引用次数: 17

Abstract

Smart grid applications, renewable energy utilization and electric vehicles (EVs) are attracting researchers due to their importance nowadays as well as in the future. An efficient power electronic converter is a main and common topic for research in this area. In this paper, a prototype of the electrical part of a power-train for EVs using an advanced multilevel converter topology is introduced, discussed and analysed. A comparison between the advanced converter, two-level and conventional multilevel converter topology is discussed as well. A switch function model is derived and discussed for the proposed converter. A mathematical model for the converter supplied by a fuel-cell (FC) and boost-converter (BC) is implemented with Matlab/Simulink. The simulation results are analysed to evaluate the converter. The evaluation is based on the harmonic analysis and power loss calculations. The converters are tested at different switching frequencies to show the effect of this variable on the converter loss. The results indicate that the proposed converter is 1.32% more efficient compared to conventional five-level DCC. Moreover, the lowest harmonic content, for all of the studied converters, is the proposed one.

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一种先进的多电平变换器拓扑结构，减少了开关元件

智能电网应用、可再生能源利用和电动汽车(ev)由于其在当前和未来的重要性而吸引着研究人员。高效的电力电子变换器是该领域研究的主要课题。本文介绍了一种采用先进的多电平变换器拓扑结构的电动汽车动力传动系统电气部分的原型，并对其进行了讨论和分析。并对先进变换器、二电平变换器和传统多电平变换器拓扑结构进行了比较。推导并讨论了该变换器的开关函数模型。利用Matlab/Simulink实现了由燃料电池(FC)和升压变换器(BC)组成的变换器的数学模型。对仿真结果进行了分析，对变换器进行了评价。评估是基于谐波分析和功率损耗计算。在不同的开关频率下对变换器进行测试，以显示该变量对变换器损耗的影响。结果表明，与传统的五电平DCC相比，该变换器的效率提高了1.32%。此外，在所有被研究的变流器中，谐波含量最低的是建议的变流器。

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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IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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