雷电引起的电压跌落和短时中断导致的12脉冲变换器电压不平衡运行的谐波分析

2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194) Pub Date : 2001-01-28 DOI:10.1109/PESW.2001.917206

C. Boonseng, V. Kinnares

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引用次数: 9

摘要

本文概述了与12脉冲变换器与直流电机驱动在工业厂房中的应用有关的电能质量问题。这些问题包括电压跌落时电力系统的谐波和不平衡电压条件下的谐波畸变。提出的定义侧重于雷电引起的系统故障。电压不平衡导致不平衡源电流大，导致输入电流过大，畸变高。输入电流的总谐波失真百分比(THD/sub i/)在每单位正常峰值电流为6时增加了约47%。已经对这些事件进行了测量和分析。最后，介绍了基于测量技术的相位角跳变的新概念。

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Analysis of harmonic for 12-pulse converter under unbalanced voltage operation due to lightning related voltage sags and short interruption

This paper presents a summary of power quality related concerns associated with the applications of 12-pulse converter with DC motor drives in industrial plants. These concerns include power system harmonics and harmonic distortion under unbalance voltage condition during voltage sags occurrence. The definition proposed focuses on system faults due to lightning. The voltage unbalance causes large unbalance source currents resulting in excessive input current and high distortion. The percentage of total harmonic distortion of input current (THD/sub i/) increased approximately 47% at 6 per unit of normal peak current. The measurement and analysis of such events has been performed. Finally, the new phase-angle jump concept based on measured techniques is introduced.

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2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)

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