TY - GEN
T1 - Thermoelectric coupling characteristics of 1100kv gis/gil basin insulators under AC and DC voltage
AU - Zhong, Jianying
AU - Zhang, Bo
AU - Hao, Liucheng
AU - Tan, Shengwu
AU - Wang, Zhijun
AU - Yao, Yongqi
AU - Zhang, Hao
AU - Han, Guohui
AU - Du, Yingqian
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/10/30
Y1 - 2020/10/30
N2 - The basin insulator is key element of gas-insulated metal-enclosed switchgear (GIS) and transmission lines (GIL), the material properties and geometry directly affects the electric field distribution in the apparatus, further affecting its insulating properties. The insulator in operation is affected by the heating of the conductor and the external environment, and has a large temperature gradient. The dielectric constant and conductivity of the insulating material are different at different temperatures, which affects the electric field distribution. In this paper, the dielectric constant and electrical conductivity of insulating materials are measured as a function of temperature, and the factors such as the transport and diffusion of charged particles in the gas space under DC voltage and the accumulation of surface charges on insulators are considered. A temperature-coupled AC / DC electric field simulation model was established to analyze the distribution characteristics of the electric field of the basin insulator under extreme temperature conditions. This study provides a theoretical basis for the optimization and design of the insulation characteristics of GIS / GIL equipment.
AB - The basin insulator is key element of gas-insulated metal-enclosed switchgear (GIS) and transmission lines (GIL), the material properties and geometry directly affects the electric field distribution in the apparatus, further affecting its insulating properties. The insulator in operation is affected by the heating of the conductor and the external environment, and has a large temperature gradient. The dielectric constant and conductivity of the insulating material are different at different temperatures, which affects the electric field distribution. In this paper, the dielectric constant and electrical conductivity of insulating materials are measured as a function of temperature, and the factors such as the transport and diffusion of charged particles in the gas space under DC voltage and the accumulation of surface charges on insulators are considered. A temperature-coupled AC / DC electric field simulation model was established to analyze the distribution characteristics of the electric field of the basin insulator under extreme temperature conditions. This study provides a theoretical basis for the optimization and design of the insulation characteristics of GIS / GIL equipment.
KW - AC and DC
KW - Basin insulator
KW - GIS and GIL
KW - Thermoelectric coupling
UR - http://www.scopus.com/inward/record.url?scp=85101638147&partnerID=8YFLogxK
U2 - 10.1109/EI250167.2020.9347129
DO - 10.1109/EI250167.2020.9347129
M3 - Conference contribution
AN - SCOPUS:85101638147
T3 - 2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020
SP - 852
EP - 856
BT - 2020 IEEE 4th Conference on Energy Internet and Energy System Integration
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th IEEE Conference on Energy Internet and Energy System Integration, EI2 2020
Y2 - 30 October 2020 through 1 November 2020
ER -