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Content Provider | IET Digital Library |
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Author | Jiang, Tianyan Wang, Baimei Bi, Maoqiang Chen, Xi Cheng, Shouhua Wang, Fan |
Abstract | Partial discharge (PD) online monitoring is an effective approach to inspect insulation defects and identify potential faults in high voltage equipment. However, electromagnetic noises such as narrow-frequency-band (NFB) noise make it difficult to measure PD signals in the field accurately. This study proposed an approach which can remove the NFB interference in the PD signals by the chaos theory. The basic principles of chaotic oscillator interference filter in suppressing PD signal NFB were researched. The method based on the characteristic that the moving state of chaotic oscillators, and the characteristic was determined by the chaotic phase diagram and Lyapunov exponent. A chaotic oscillator filter has also been proposed to suppress NFB interference in PD detection. The de-nosing results show that the chaotic oscillator filter de-noising effect is better than the two order IIR-rated filter. |
Starting Page | 357 |
Ending Page | 360 |
Page Count | 4 |
Volume Number | 2020 |
e-ISSN | 20513305 |
Issue Number | Issue 13, Jul (2020) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2020/13 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.1139 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2020-01-13 |
Access Restriction | Open |
Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
Subject Keyword | Chaos Chaotic Oscillator Interference Filter Chaotic Phase Diagram Digital Filter Electromagnetic Compatibility Electromagnetic Noises Filtering Method in Signal Processing Filtering Theory High Voltage Equipment Interference Interference Suppression Lyapunov Exponent Narrow-frequency-band Noise NFB Interference Oscillator Partial Discharge Online Monitoring PD Detection PD Signal Denoising Effect PD Signal NFB Suppression Signal Denoising Signal Detection Signal Processing Theory Two Order IIR-rated Filter |
Content Type | Text |
Resource Type | Article |
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