Research on the NPC Three-Level Inverter Fault Feature Extraction Method Based on Wavelet Analysis

Rong Hua; Ping Ping Ji

doi:10.4028/www.scientific.net/AMM.494-495.1410

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 494-495Research on the NPC Three-Level Inverter Fault...

Research on the NPC Three-Level Inverter Fault Feature Extraction Method Based on Wavelet Analysis

Abstract:

This paper study a fault feature extraction method based on wavelet packet transform, using this method to extract fault information of output signal in the NPC three-level inverter fault. After analysis the structure principle of NPC three-level inverter and the wavelet packets fault feature extraction algorithm, brings up a fault feature extraction procedure of NPC three-level inverter based on wavelet packet transform. Through MATLAB simulation experiments, prove the rationality of wavelet packet transform in fault feature extraction, and the reliability in intelligent fault diagnosis.

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Periodical:

Applied Mechanics and Materials (Volumes 494-495)

Pages:

1410-1413

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.494-495.1410

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Online since:

February 2014

Authors:

Rong Hua*, Ping Ping Ji

Keywords:

Fault Feature Extraction, NPC Three-Level Inverter, Wavelet Packet Transform

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