Azam, S. M. Kayser and Othman, Mohamadariff and Illias, Hazlee Azil and Latef, Tarik Abdul and Fahmi, Daniar and Raymond, Wong Jee Keen and Mahadi, Wan Nor Liza Wan and Hossain, K. M. Zakir and Aziz, M. Z. A. Abd. and Ababneh, Ahmad (2024) Unknown PD distinction in HVAC/HVDC by antenna-sensor with pulse sequence analysis. Alexandria Engineering Journal, 91. pp. 457-471. ISSN 1110-0168, DOI https://doi.org/10.1016/j.aej.2024.02.013.
Full text not available from this repository.Abstract
Ultra-high frequency (UHF) antenna-sensors are becoming popular for non-invasive detection of unwanted electric discharge i.e., partial discharge (PD) in high-voltage (HV) systems. Early PD signals are weak for detection and classification by UHF antenna-sensors. Early PD detection and distinction are crucial to prevent equipment failure. Typically, PD signals are distinguished in HVAC by phase resolved PD (PRPD) patterns. Whereas in HVDC, some unconventional methods are applied. However, a blind distinction of PDs under unknown HVAC/HVDC conditions still remains a challenge. In this article, we address this issue by using a lotusshaped UHF antenna-sensor for early PD detection. Unlike cut-and-try technique-based conventionally designed bio-inspired antennas, our sensor is designed by a precisely derived equivalent circuit model to systematically optimize antenna gain over size to detect early PDs. The fabricated sensor has a size of 18x11 cm2, an average realized gain of 3.05 dBi in 740-1600 MHz frequencies, and a sensitivity index of 154.04 dBi/m2. The sensor prototype is applied to wirelessly distinguish PD signals from unknown sources under HVAC and HVDC by pulse sequence analysis. Early detection, characterization, and distinction of unknown PD signals are ensured by the proposed sensor and interpretation technique. This work offers a distinctive PD sensing method for HVAC/HVDC converter stations.
| Item Type: | Article |
|---|---|
| Funders: | Universiti Malaya (UM) , Malaysia (IMG003-2023), RU Geran-Fakulti Program (GPF008A-2023), Malaysian Ministry of Higher Education |
| Uncontrolled Keywords: | Partial discharge; Antenna; UHF sensor; PD detection; PD distinction; PD classification; HVAC/HVDC |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering > Department of Electrical Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 04 Nov 2024 08:31 |
| Last Modified: | 04 Nov 2024 08:31 |
| URI: | http://eprints.um.edu.my/id/eprint/45581 |
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