Unknown PD distinction in HVAC/HVDC by antenna-sensor with pulse sequence analysis

Othman, Mohamadariff and Kayser Azam, S. M. and Illias, Hazlee Azil and Abdul Latef, Tarik and Fahmi, Daniar and Wong, Jee Keen Raymond and Wan Mahadi, Wan Nor Liza and Abdul Kayum Mohammad, Zakir Hossain and Abd Aziz, Mohamad Zoinol Abidin 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

Text 0261428032024161553744.PDF Download (11MB)

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 lotus-shaped 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 18×11 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
Uncontrolled Keywords:	Partial discharge, Antenna UHF sensor, PD detection, PD distinction, PD classification, HVAC/HVDC
Divisions:	Faculty of Electrical and Electronic Engineering Technology
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	04 Oct 2024 15:39
Last Modified:	04 Oct 2024 15:39
URI:	http://eprints.utem.edu.my/id/eprint/27638
Statistic Details:	View Download Statistic

Actions (login required)

View Item