双极LVDC配电系统电压平衡电路中的倍压整流型全桥变换器

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI:10.1109/ICPE.2015.7168130

Ki-Woong Shin, Hee-Jun Lee, Seok-Jin Hong, Seung-Wook Hyun, Young-Real Kim, C. Won

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引用次数: 7

摘要

本文提出了一种双极LVDC配电系统的倍压整流型全桥变换器。该变换器可实现双向潮流，并可进行DC_link电压平衡操作。双极结构体系与单极结构体系不同，具有中性点。但是，这个中性点会导致上下电容之间的DC_Link电压不平衡。因此，双极结构需要电压平衡电路来补偿电压不平衡。在倍压整流型全桥变换器中，将变压器二次侧二极管替换为功率晶体管。使用二次侧电路进行电压平衡控制，无需附加平衡电路。此外，全桥型的一次侧电路可以通过相移实现零电压转换。最后，升压和降压操作也可以。仿真和实验结果验证了该转换器的有效性。

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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The Voltage-doubler Rectifier type Full-bridge converter built in voltage-balancing circuit for bipolar LVDC distribution system

This paper proposes Voltage-doubler Rectifier type Full-bridge converter for bipolar LVDC distribution system. This converter is possible of bi-directional power flow and perform DC_link voltage balancing operation. System of bipolar structure has neutral-point unlike unipolar structure. But, this neutral point is incur DC_Link voltage unbalance between top and bottom capacitor. Thus, bipolar structure need voltage balancing-circuit for voltage unbalance compensation. In Voltage-doubler Rectifier type Full-bridge converter to proposes, secondary side diodes of transformer are replaced to power transistors. And perform voltage balancing control using secondary side circuit without additional balancing-circuit. Also, primary side circuit of Full-bridge type can perform ZVS by phase-shift. And last, step-up and step-down operation also can. Such validity of converter is verified by simulation and experimental results.

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来源期刊

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)

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