99.3% Efficient three-phase buck-type all-SiC SWISS Rectifier for DC distribution systems

2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI:10.1109/APEC.2017.7931000

L. Schrittwieser, M. Leibl, Haider Michael, Friedrich Thony, J. W. Kolar, T. Soeiro

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引用次数: 63

Abstract

DC power distribution systems for data centers, industrial applications and residential areas are expected to provide higher efficiency, reliability and lower cost compared to ac systems. Accordingly they have been an important research topic in recent years. In these applications an efficient power factor correction rectifier, supplying a dc distribution bus from the conventional three-phase ac mains is typically required. This paper analyzes the three-phase buck-type unity power factor SWISS Rectifier showing that its input current THD can be improved significantly by interleaving. The dc output filter is implemented using a current compensated Integrated Common Mode Coupled Inductor which ensures equal current sharing between interleaved half bridges and provides common mode inductance. Based on the analysis an high efficient 8 kW, 4 kW dm−3 (64 Win−3) lab-scale prototype converter is designed using SiC MOSFETS. Measurements taken on a hardware prototype confirm a full power efficiency of 99.16 % and a peak efficiency of 99.26 %.

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99.3%高效三相buck型全sic瑞士整流器用于直流配电系统

与交流系统相比，数据中心、工业应用和居民区的直流配电系统有望提供更高的效率、可靠性和更低的成本。因此，它们是近年来重要的研究课题。在这些应用中，通常需要一个有效的功率因数校正整流器，从传统的三相交流电源供电直流配电总线。通过对三相buck型单位功率因数SWISS整流器的分析，表明通过交错处理可以显著提高其输入电流THD。直流输出滤波器采用电流补偿的集成共模耦合电感实现，确保交错半桥之间的电流共享相等，并提供共模电感。在此基础上，利用SiC mosfet设计了一个高效率的8kw, 4kw dm−3 (64win−3)实验室规模的原型转换器。在硬件样机上进行的测量证实，全功率效率为99.16%，峰值效率为99.26%。

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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2017 IEEE Applied Power Electronics Conference and Exposition (APEC)

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