Results 271 to 280 of about 6,266,802 (357)

Impact of temperature on surface charges accumulation on insulators in SF6-filled DC-GIL

IEEE Transactions on Dielectrics and Electrical Insulation, 2017
Hong-Yang Zhou, Guo-Ming Ma, Cheng-Rong Li   +2 more
exaly   +2 more sources

FGO-GIL: Factor Graph Optimization-Based GNSS RTK/INS/LiDAR Tightly Coupled Integration for Precise and Continuous Navigation

IEEE Sensors Journal, 2023
As a relative positioning technique, light detection and ranging (LiDAR)-inertial odometry (LIO) is known to suffer from drifting and can only provide local coordinates.
Xingxing Li, Hui Yu, Xuanbin Wang, Shengyu Li, Yuxuan Zhou, Hanyu Chang   +5 more
semanticscholar   +1 more source

Particle behavior and trap design for ±320 kV gas-insulated power transmission line (GIL)

Journal of Physics D: Applied Physics, 2023
The movement of metal particles in the electric field of the DC gas-insulated transmission line (GIL) may cause local electric field distortion on the surface of the spacer, which seriously affects the operation stability of the GIL. In this paper, based
Weijian Zhuang, Zuodong Liang, Fangwei Liang, Xianhao Fan, Hanhua Luo, Jun Hu, Chuanyang Li, Bo Zhang, Jinliang He   +8 more
semanticscholar   +1 more source

Combined Effects of Electrical and Mechanical Stresses on Insulation Breakdown—Part II: Bursting Breakdown of GIL Insulator

IEEE transactions on dielectrics and electrical insulation, 2023
High voltage alternative current (HVAC) gas insulated transmission line (GIL) bears a strong electric field and complex mechanical stresses during operation.
B. Du, Zhijun Guo, Hucheng Liang
semanticscholar   +1 more source

Surface Charging Affecting Metal Particle Lifting Behaviors Around Epoxy Spacer of HVDC GIL/GIS

IEEE transactions on dielectrics and electrical insulation, 2022
In this article, the mechanisms of surface charging and surface modification of epoxy spacer affecting the lifting voltage and the motion trajectory of spherical metal particles in a downsized dc gas insulated transmission line (GIL) are investigated by ...
Jin Li, Yuhuai Wang, Jianan Dong, Hucheng Liang, B. Du, Yongsheng Xu, Xiaolin Li   +6 more
semanticscholar   +1 more source

Electric Field Grading and Discharge Inception Voltage Improvement on HVDC GIS/GIL Spacer With Permittivity and Conductivity Graded Materials (ε/σ-FGM)

IEEE transactions on dielectrics and electrical insulation, 2022
Functionally graded materials (FGM) application with graded permittivity and conductivity is promising as an effective technique for electric field relaxation in SF6 gas around HVDC gas insulated switchgear (GIS)/gas insulated transmission line (GIL ...
.. Rachmawati, H. Kojima, K. Kato, N. Zebouchi, N. Hayakawa   +4 more
semanticscholar   +1 more source

Surface Charge Characteristics of DC-GIL Insulator Under Multiphysics Coupled Field: Effects of Ambient Temperature, Load Current, and Gas Pressure

IEEE transactions on dielectrics and electrical insulation, 2022
In this article, the surface charge characteristics of the direct current gas-insulated transmission lines (DC-GIL) insulator under thermal–electric coupled fields are investigated.
Xiaolong Li, Min Wan, Guangkuo Zhang, Xin Lin   +3 more
semanticscholar   +1 more source

Simulation and Analysis on Motion Behavior of Metal Particles in AC GIL

IEEE transactions on dielectrics and electrical insulation, 2022
Metal particle contamination can seriously affect the reliability of gas-insulated metal enclose transmission line (GIL) and cause insulation failure. In this article, we investigate the metal particle motion patterns based on the entity model of GIL by ...
Zehua Wu, Zhikai Li, Peng Liu, Zongren Peng, Haoran Wang, B. Cui, He Li   +6 more
semanticscholar   +1 more source

Study on Movement and Distribution Characteristics of Metal Particle Dust in DC GIL

IEEE transactions on dielectrics and electrical insulation, 2022
Gas-insulated transmission lines (GILs) have a wide application prospect in special occasions such as cross-terrain power transmission. Metal particle contamination is an important reason for low insulation performance of GIL.
Kang Ma, Huaqiu Liu, Qiang Wang, Shenghui Wang, F. Lv   +4 more
semanticscholar   +1 more source

Electric Field Relaxation of HVDC GIL Spacer With Surface Conductivity Gradient Material (σ-SFGM) Using Electrospinning Technology

IEEE transactions on dielectrics and electrical insulation, 2022
This study discusses the application of the surface conductivity gradient materials ( $\sigma $ -SFGMs) for relaxing the electric field concentration around the epoxy-based spacer in high-voltage direct current gas-insulated transmission lines (HVDC GIL).
H. Yao, B. Du, Hucheng Liang, X. Kong, Jianan Dong   +4 more
semanticscholar   +1 more source