Yang, L. and Judd, M.D. and Bennoch, C.J. (2004) Denoising UHF signal for PD detection in transformers based on wavelet technique. In: 2004 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2004. CEIDP '04., 2004-10-17 - 2004-10-20, Boulder.
Full text not available in this repository. (Request a copy from the Strathclyde author)Abstract
Although the UHF technique is immune from electrical interference; communication noises, thermal noise from the detection system, and periodic pulse-shaped noise from thyristor operation are usually found in the UHF signal. In this paper, a method based on discrete wavelet transforms is introduced. Three steps in the de-noising process are studied and discussed. Hundreds of combinations involved in the process are compared. An artificial signal is created by mixing the specific noise with a 'clean' UHF signal. The optimal process and corresponding parameters are defined by comparing the 'clean' signal and the de-noised version of the artificial signal.
| Item type: | Conference or Workshop Item (Paper) |
|---|---|
| ID code: | 38301 |
| Keywords: | denoising, uhf signal, pd detection, transformers, wavelet technique, Electrical engineering. Electronics Nuclear engineering |
| Subjects: | Technology > Electrical engineering. Electronics Nuclear engineering |
| Department: | Faculty of Engineering > Electronic and Electrical Engineering |
| Related URLs: | |
| Depositing user: | Pure Administrator |
| Date Deposited: | 07 Mar 2012 16:55 |
| Last modified: | 04 Oct 2012 17:16 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/38301 |
Actions (login required)
| View Item |