An investigation on harmonic level, current & voltage distortion and associated power for three phase four wire distribution system in a USM Electrical & Electronic Engineering Department building

Proceedings. National Power Engineering Conference, 2003. PECon 2003. Pub Date : 2003-12-15 DOI:10.1109/PECON.2003.1437477

M. Izhar, C. M. Hadzer, S. Masri, S. Idris

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引用次数: 3

Abstract

This paper presents the results of the investigation on power quality at Electrical & Electronic Engineering department building in University Science Malaysia for three phase four-wire system. The survey was conducted through out a day during peak and off peak hours. The harmonic level, total harmonic distortion, neutral current and power associated such as power consumption, true power factor and etc. for each line were measured and analyzed. The analysis of data from measured distribution system (TCL:2412 kW, MD:1352 kW, 5000 A) showed that the harmonic level was highest at odd harmonic compared to even harmonic. The results also reveal that power consumption and instantaneous power increased during peak hours. The power factor correction mechanism too was functioning well and approaching unity. One very interesting factor is that the neutral currents and total harmonic distortion were excessive in the line neutral distribution system and would affect the distribution system performance. Ideally, it should be zero.

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某USM电气电子工程系大楼三相四线配电系统谐波水平、电流电压畸变及相关功率的研究

本文介绍了对马来西亚科学大学电气与电子工程系大楼三相四线制系统电能质量的调查结果。这项调查是在一天的高峰和非高峰时间进行的。测量并分析了每条线路的谐波电平、总谐波畸变、中性点电流以及与功率相关的功率，如功耗、真功率因数等。对实测配电系统(TCL:2412 kW, MD:1352 kW, 5000 A)的数据分析表明，奇次谐波的谐波水平高于偶次谐波。研究结果还表明，在用电高峰时段，电力消耗和瞬时功率均有所增加。功率因数校正机制也运行良好，趋于统一。一个非常有趣的因素是，在线路中性点配电系统中，中性点电流和总谐波失真过大，会影响配电系统的性能。理想情况下，它应该是零。

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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Proceedings. National Power Engineering Conference, 2003. PECon 2003.

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