Measurement of Harmonics in Power Systems Using Near Perfect Reconstruction Filter Banks

被引:11
作者
Taskovski, Dimitar [1 ]
Koleva, Ljubica [1 ]
机构
[1] Ss Cyril & Methodius Univ Skopje, Fac Elect Engn & Informat Technol, Skopje 1000, North Macedonia
关键词
Harmonic distortion; power quality (PQ); wavelet packet transform;
D O I
10.1109/TPWRD.2012.2187123
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];
摘要
In this letter, the use of near perfect reconstruction filter banks on the harmonic analysis of power system waveforms is investigated. For this aim, wavelet packet transform for the rms measurement is implemented. Besides commonly used wavelet filters, the influence of several of Johnston's filters is examined. Experimental tests are performed under different conditions in case of stationary and nonstationary signals. The obtained results show that Johnston filters outperform the commonly used wavelet filters for harmonic analysis.
引用
收藏
页码:1025 / 1026
页数:2
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