三相PWM整流器对接口交流电网和双极直流有功配电网的比较

2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2012-06-25 DOI:10.1109/PEDG.2012.6254005

J. Moia, J. Lago, A. Perin, M. Heldwein

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引用次数: 23

摘要

直流有源配电网似乎是一个技术上可行的解决方案，在高传输效率，电能质量，可靠性和分布式发电的要求。为了创建这样的网络，将采用现代电源转换设备，将它们连接到三相交流电源系统。本研究从功率半导体、效率、体积和重量的角度对双极直流有源网络的两电平和三电平(NPC)双向电压源整流器拓扑进行了评估。采用基于旋转参照系的评价方法，分析了160kva NPC变流器馈送不平衡直流负载的情况，分析了不平衡对变流器体积和重量的影响。进一步推导了NPC整流器直流侧最大负载不平衡。

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Comparison of three-phase PWM rectifiers to interface Ac grids and bipolar Dc active distribution networks

Dc active distribution networks seem to be a technically viable solution where high transmission efficiency, power quality, reliability and distributed generation are required. Modern power conversion devices are to be employed in order to create such networks by connecting them to three-phase ac power systems. This work present the evaluation of two-level and three-level (NPC) bidirectional voltage source rectifier topologies for bipolar dc active networks from the perspective of power semiconductor efforts, efficiency, volume and weight. The evaluation methodology based on the rotating reference frame is used in the analysis of a 160 kVA NPC converter feeding unbalanced dc loads and the impact of this in the converter volume and weight is presented. Furthermore, the maximum dc-side load unbalance for the NPC rectifier is derived.

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2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG)

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