Analysis of Harmonics using S-Transform

被引：0

作者：

Thangaraj, K. ^{[1
]}

Muruganandham, J. ^{[1
]}

Selvaumar, S. ^{[1
]}

Jagan, R. ^{[1
]}

机构：

[1] SMVEC, Dept EEE, Pondicherry, India

来源：

FIRST INTERNATIONAL CONFERENCE ON EMERGING TRENDS IN ENGINEERING, TECHNOLOGY AND SCIENCE - ICETETS 2016 | 2016年

关键词：

Harmonic distortion; Electric power quality; S-Transform; signal and noise;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper introduces the method for evaluating the harmonic contents of power system waveform. The disturbed signal is split into many frequency sub-bands in Frequency domain, where the disturbing time and level can be identified. The aliasing problem which presents in Discrete Wavelet Transform (DWT) can be restored using Lifting Wavelet Transform which ensures perfect reconstruction property of the signal and the lack of time invariance property in LWT can be restored by up sampling the filter coefficients in stationary wavelet transform. The S-Transform (ST), is evolved from the ideas of wavelet transform, and is based on a moving and scalable localizing Gaussian window whose characteristics are superior to earlier types of the transforms. A comparative analysis will be done with results obtained from the S-Transform and conventional methods for different measuring conditions and Simulation results are given.

引用

页数：5

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