TY - GEN
T1 - A Study on the Impact of Thermal Stresses and Voids on the Partial Discharge Inception Voltage in HVDC Power Cables
AU - Tag, Amir
AU - Saleh, Mohammad Al Shaikh
AU - Refaat, Shady S.
AU - Ghrayeb, Ali
AU - Abu-Rub, Haitham
N1 - Funding Information:
ACKNOWLEDGMENT This publication was made possible by NPRP grant [13S-0116-200085] from the Qatar National Research Fund (a member of Qatar Foundation). Supported by the TAMUQ Research Impact Initiative-SP5. The statements made herein are solely the responsibility of the authors.
Publisher Copyright:
© 2023 IEEE.
PY - 2023/5/11
Y1 - 2023/5/11
N2 - Partial Discharge (PD) is one of the biggest factors that cause the breakdown of cables in both high voltage alternating current (HVAC) and high voltage direct current (HVDC). In comparison to AC insulation systems, the behavior of PD is significantly more complex in DC insulation systems, especially in HVDC Cross-linked Polyethylene (XLPE) power cables. Since PD activities are essentially a result of increased electrical stress under loaded conditions, the distribution of temperature, electrical fields, and PD inception all become large contributors to cable aging. The goal of this paper is to evaluate the PD inception voltage (PDIV) in HVDC power cables and to compare their XLPE insulation performance under high DC voltage and thermal stresses. The impact of the void's size and position on the PD inception voltage is also investigated. The correlation with the shape and the size of the voids in DC insulation system and the PD inception voltage will be found. The paper will also show how the PDIV is dependent on temperature under the investigated circumstances. This study is conducted using Finite Element Analysis (FEA) software (COMSOL Multiphysics).
AB - Partial Discharge (PD) is one of the biggest factors that cause the breakdown of cables in both high voltage alternating current (HVAC) and high voltage direct current (HVDC). In comparison to AC insulation systems, the behavior of PD is significantly more complex in DC insulation systems, especially in HVDC Cross-linked Polyethylene (XLPE) power cables. Since PD activities are essentially a result of increased electrical stress under loaded conditions, the distribution of temperature, electrical fields, and PD inception all become large contributors to cable aging. The goal of this paper is to evaluate the PD inception voltage (PDIV) in HVDC power cables and to compare their XLPE insulation performance under high DC voltage and thermal stresses. The impact of the void's size and position on the PD inception voltage is also investigated. The correlation with the shape and the size of the voids in DC insulation system and the PD inception voltage will be found. The paper will also show how the PDIV is dependent on temperature under the investigated circumstances. This study is conducted using Finite Element Analysis (FEA) software (COMSOL Multiphysics).
KW - Finite element modeling
KW - HVDC insulation
KW - Inception voltage
KW - Partial discharges
UR - http://www.scopus.com/inward/record.url?scp=85160199945&partnerID=8YFLogxK
U2 - 10.1109/CPERE56564.2023.10119586
DO - 10.1109/CPERE56564.2023.10119586
M3 - Conference contribution
AN - SCOPUS:85160199945
T3 - IEEE Conference on Power Electronics and Renewable Energy, CPERE 2023
BT - IEEE Conference on Power Electronics and Renewable Energy, CPERE 2023
PB - Institute of Electrical and Electronics Engineers (IEEE)
T2 - 2023 IEEE Conference on Power Electronics and Renewable Energy, CPERE 2023
Y2 - 19 February 2023 through 21 February 2023
ER -