具有直流电压平衡的中性点箝位有源前端变换器的统一功率因数控制器

P. Chaturvedi, A. Ojha, Shailendra Jain, A. Mittal
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引用次数: 8

摘要

电力电子变流器的使用影响电力系统中谐波和无功潮流的产生。因此,三相改善电能质量的交直流变换器在电源转换应用中得到了广泛的应用。本文研究了三相中性点箝位(NPC)三电平交直流变换器在平衡负载和不平衡负载下的控制问题。针对变换器在稳态和暂态工况下的统一功率因数运行,设计并研制了统一功率因数控制器(UPC)。此外,UPC通过在实验室开发的原型上进行的实验进行验证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Unity power factor controller for neutral point clamped active front end converter with DC voltage balancing
The use of power electronics converters influencing the generation of harmonics and reactive power flow in a power system. Therefore, three-phase improved power quality AC-DC converters are gaining lot of popularity in power conversion applications. This paper deals with the control of three-phase neutral point clamped (NPC) 3-level AC-DC converter under balanced and unbalanced load condition. A unity power factor controller (UPC) is designed and developed for unity power factor operation of the converter under steady state and transient conditions. Further, the UPC is validated through experimentation performed on prototype developed in the laboratory.
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