Analysis for Power System Transient Harmonics Based on Wavelet Packet Transform

2013 ◽  
Vol 415 ◽  
pp. 241-244
Author(s):  
Rong Hui Liu ◽  
Ai Qang Pan ◽  
Xiu Yang
Keyword(s):  
Wavelet Transform ◽  
Power Systems ◽  
Power System ◽  
Harmonic Analysis ◽  
Wavelet Packet ◽  
Wavelet Packet Transform ◽  
Time Varying ◽  
Analysis Method ◽  
Frequency Decomposition ◽  
Harmonic Analysis Method

In this paper, the principles of wavelet transform and wavelet packet transform were presented. The wavelet packet transform had good characteristics of uniform frequency decomposition, and thus transient harmonic analysis method was proposed based on wavelet packet transform. Finally, transient interharmonic, time varying harmonic and transient oscillation signals in power systems were simulated with Matlab emulator. The perfect results of simulation show that the presented method can accurately detect the transient harmonics, which provides support for harmonic analysis in power systems.

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