Determining harmonic characteristics of typical single phase non-linear loads

K. Umeh, A. Mohamed, R. Mohamed
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引用次数: 6

Abstract

Harmonic distortion in typical commercial office buildings is growing due to the widespread use of single phase nonlinear loads. This paper presents a method for developing various non-linear load models so as to analyze the current harmonic waveform characteristics of these loads. The electromagnetic transient simulation program (PSCAD/EMTDC) was used in modeling some of the non-linear loads such as personal computers, uninterruptible power supply and fluorescent lamp with electronic ballast. Simulation results provide the estimate of the harmonic currents in terms of the total harmonic distortion and the individual harmonic current components. The results obtained from simulations are then verified by the experimental results.
确定典型单相非线性负载的谐波特性
由于单相非线性负荷的广泛应用,典型商业办公建筑中的谐波失真日益严重。本文提出了一种建立各种非线性负荷模型的方法,以分析这些负荷的电流谐波波形特征。利用电磁瞬态仿真程序(PSCAD/EMTDC)对个人电脑、不间断电源和带电子镇流器的荧光灯等非线性负载进行了建模。仿真结果提供了总谐波失真和单个谐波电流分量的谐波电流估计。然后用实验结果验证了模拟得到的结果。
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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