断层穿越快速实时对称坐标变换的特点

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI:10.1109/ICRERA.2017.8191286

N. Kimura, T. Morizane, H. Omori

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引用次数: 0

摘要

在公用事业系统中，最常见的故障是1线对地故障。造成三相电力系统电压和电流的不平衡。本文提出了一种新的不平衡故障检测方法，该方法利用记忆的1个采样时间前的三相电压数据进行快速的实时对称坐标变换。本文介绍了存储三相电压数据的快速实时对称坐标变换(VFRT-SCT)的一些特点。这里主要描述谐波分量的影响。分析结果表明，当谐波分量计入实用电压时，会产生一定的误差。

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Characteristics of fast real time symmetrical coordinate transformation used for fault ride through

In the utility system, the most popular fault is 1 line-to-ground fault. It causes the imbalance voltages and currents in 3-phase power system. This paper presents the novel unbalanced fault detection by using the very fast real time symmetrical coordinate transform from the memorized 3-phase voltage data before 1 sampling time. This paper presents some characteristics of the very fast real time symmetrical coordinate transform (VFRT-SCT) from the memorized 3-phase voltage data. The effects of the harmonic components are mainly described here. As shown in the analytical results, certain amount of error occurs when the harmonic component is included in the utility voltage.

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2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)

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