Chaos Synchronization Error Technique-Based Defect Pattern Recognition for GIS through Partial Discharge Signal Analysis

Entropy

Hung-Cheng Chen¹  Her-Terng Yau² 

[1] Department of Electrical Engineering, National Chin-Yi University of Technology, Taichung 41170, Taiwan;

关键词: partial discharge;    insulation deterioration;    chaos synchronization;    fractal theory;    extension theory;   

DOI  :  10.3390/e16084566

来源: mdpi

【 摘 要 】

The work is aimed at using the chaos synchronization error dynamics (CSED) technique for defect pattern recognition in gas insulated switchgear (GIS). The radiated electromagnetic waves generated due to internal defects were measured by the self-made ultrahigh frequency (UHF) micro-strip antenna, so as to determine whether partial discharge will occur. Firstly, a data pretreatment is performed on the measured raw data for the purpose of computational burden reduction. A characteristic matrix is then constructed according to dynamic error trajectories in a chaos synchronization system, subsequent to which characteristics are extracted. A comparison with the existing Hilbert-Huang Transform (HHT) method reveals that the two characteristics extracted from the CSED results presented herein using the fractal theory were recognized at a higher rate pattern.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland