Noise Discrimination Method for Partial Discharge Current Focused on Damped Oscillation Waveform
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- Torii Hirotaka
- FUJI ELECTRIC CO., LTD.
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- Hayase Yuji
- FUJI ELECTRIC CO., LTD.
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- Yamashiro Keisuke
- FUJI ELECTRIC CO., LTD.
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- Matsumoto Satoshi
- Shibaura Insutitute of Technology
Bibliographic Information
- Other Title
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- 部分放電電流の減衰振動波形を用いたノイズ弁別手法
- ブブン ホウデン デンリュウ ノ ゲンスイ シンドウ ハケイ オ モチイタ ノイズ ベンベツ シュホウ
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Abstract
<p>On-line Partial discharge (PD) measurement is very important for insulation monitoring of high-voltage equipment. One of the biggest challenges performing on-line monitoring is discrimination between PD detect signals and external noises. Experimental results using high frequency CT sensor show that the current waveforms associated with various PD signals are all damped cosine waveforms, and have unique frequency and decay times of damped oscillation. Therefore we focused attention on the damped oscillation waveform of the PD current, especially damped cosine waveform having a different number of oscillations. In addition to this, the noise discrimination method using wavelet transform or short-time Fourier transform is effective. Those noise discriminating process are applicable to on-line PD current measurement system.</p>
Journal
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- IEEJ Transactions on Fundamentals and Materials
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IEEJ Transactions on Fundamentals and Materials 138 (2), 64-70, 2018
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390282679576967168
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- NII Article ID
- 130006329201
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- NII Book ID
- AN10136312
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- ISSN
- 13475533
- 03854205
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- NDL BIB ID
- 028846487
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed