Comparison of WPT and DWT in quantization of power system harmonics in context of IEEE standard 1459–2000

S. Kashyap, C. Meena, A.K. Singh
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Abstract

This paper presents a unique comparison between Wavelet Packet Transform (WPT) and Discrete Wavelet Transform (DWT) in the power system harmonics scenario. The signals used are actual tested waveforms which have been obtained using power quality analyzer. The results obtained using WPT and DWT are then compared with IEEE Standard 1459 - 2000 based values. The percentage error has been calculated for the individual parameters in both the cases. The comparative study shows DWT to be more suitable over WPT for quantization of power system harmonics.
IEEE 1459-2000标准下小波变换与小波变换在电力系统谐波量化中的比较
本文对电力系统谐波分析中的小波包变换(WPT)和离散小波变换(DWT)进行了独特的比较。所使用的信号是通过电能质量分析仪获得的实际测试波形。然后将利用小波变换和小波变换得到的结果与基于IEEE 1459 - 2000标准的值进行比较。在这两种情况下,已经计算了单个参数的百分比误差。对比研究表明,小波变换比小波变换更适合于电力系统谐波的量化。
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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