Development of Future Compact and Eco-Friendly HVDC Gas
2020年6月26日 · Testing and validating the electrical insulation performance of full-size compact high-voltage direct current (HVDC) gas-insulated systems, gas-insulated transmission lines …
Breakdown characteristics of particle-contaminated HVDC GIL …
2018年8月10日 · In this paper, the behavior of free conducting particles in HVDC GIL is observed and breakdown characteristics of particle contaminated GIL under superimposed DC and …
Two-dimensional Charge Characteristics in HVDC GIL Insulators: A ...
In this study, we present a two-dimensional bipolar charge transport and interaction (2D BCTI) model that accounts for both space charge and surface charge dynamics. Such model was …
Temperature-Dependent Surface Charge Accumulation for Vertical …
In this article, the heat transfer process of dc gas-insulated transmission line (GIL) is comprehensively considered, including thermal conduction, thermal convection, and thermal …
Designing HVDC GIS/GIL spacer to suppress charge accumulation
2022年6月14日 · To suppress the charge accumulation on the spacer surface in direct current (DC) gas insulated transmission line (GIL) is an important and emergent issue for the …
Simulation study on the electric field of HVDC-GIL based on the …
2021年6月22日 · Hongyang Zhou and Guoming Ma firstly proposed the thermal-electric coupling simulation model of HVDC-GIL, in which the gas convection and heat conduction is …
基于图像处理–纹理分析的HVDC GIL缺陷识别方法
通过搭建一套220 kV的实验平台及制造4种包含不同位置尺寸的绝缘缺陷，使用逐步升压法成功测得180 828个脉冲电流信号共540个样本点。 通过提取每次局部放电 (partial discharge, PD)的 …
for off-shore energy integration, new technology for HVDC Gas Insulated Switchgears (GIS) and Gas Insulated Lines (GIL) is developing thanks to its compactness and its high reliability for …
Design and validation tests of 320kV HVDC GIL/GIS - ResearchGate
2019年11月22日 · This paper gives an overview of electrical DC phenomena in GIL/GIS, the influence of insulating properties of SF6 and filled epoxy resin, and design of new support …
A novel sight for understanding surface charging phenomena on …
2020年9月1日 · Accordingly, comprehending surface charge accumulation process is the cornerstone for highly reliable insulation design of high voltage direct current (HVDC) GIL/GIS. …
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