利用1.2 kV SiC-MOSFET模块实现具有功率去耦能力的直流-单相交流变换器的实验验证

2019 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia (WiPDA Asia) Pub Date : 2019-05-01 DOI:10.1109/WiPDAAsia.2019.8760328

Hiroki Watanabe, J. Itoh, A. Iwabuchi

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摘要

本文提出了一种用于光伏电源调节系统的1.2 kV SiC-MOSFET功率模块的直流-单相交流变换器。为了提高转换效率，作者的目标是开发具有低导通电阻的SiC-MOSFET功率模块。此外，为了提高系统可靠性，还考虑了采用小缓冲电容的有源功率去耦拓扑。有源功率去耦电路利用小的刚性或陶瓷电容补偿双线频功率纹波。然而，由于缓冲电容器的电压纹波，需要高额定电压器件。本文通过实验对第一个原型SiC-MOSFET功率模块进行了测试。该模块具有1.2 kV的高额定电压，以减少缓冲电容。实验结果证实了这一基本操作。在额定输出功率下，效率最高可达95.0%。

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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Experimental Verification of DC to Single-phase AC Converter with Power Decoupling Capability using 1.2 kV SiC-MOSFET Module

This paper presents a DC to Single-phase AC converter with 1.2 kV SiC-MOSFET power module for PV power conditioning systems (PCSs). The authors are aiming to develop a SiC-MOSFET power module with low on-resister in order to improve the conversion efficiency. In addition, the active power decoupling topology with small buffer capacitor has been considered in order to improve the system reliability. the active power decoupling circuit compensates the double-line frequency power ripple by the small firm or ceramic capacitor. However, the high voltage rating devices is required due to the voltage ripple of the buffer capacitor. In this paper, a first proto type SiC-MOSFET power module is tested by the experiment. This module has the high voltage rating as 1.2 kV in order to reduce the buffer capacitor. As the experimental result, it was confirmed that the fundamental operation. In addition, the maximum efficiency of 95.0 % was obtained at the rated output power.

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2019 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia (WiPDA Asia)

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