EMD Analysis of Power Harmonics

Autor: Zhang, Kai Tuo, Li, Ming
Zdroj: Advanced Materials Research; June 2013, Vol. 706 Issue: 1 p1331-1334, 4p
Abstrakt: It can obtain intrinsic mode function (IMF) of signal wave with empirical mode decomposition (EMD) in harmonic analysis of power system. Harmonic frequency, amplitude and duration can be obtained through analysis of IMFs. Through EMD analysis on distortion waveform of single-phase AC inverter output as an example, combined with applied scene of distorted voltage, cause of distortion waveform can be deduced. The result shows that EMD analysis on non-stationary signals is of good performance, and a new substitute method of FFT transform in harmonic analysis.
Databáze: Supplemental Index