气体绝缘输电管道微粒陷阱设计技术研究进展  

Methodological Advances of Metal Particle Traps Design in Gas Insulated Transmission Lines

作　　者：李庆民[1] 常亚楠 王健[1] 胡琦[2] 王靖瑞 郭瑞 LI Qingmin;CHANG Yanan;WANG Jian;HU Qi;WANG Jingrui;GUO Rui(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China;Beijing Key Laboratory of High Voltage and Electromagnetic Compatibility,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,北京102206 [2]华北电力大学北京市高电压与电磁兼容重点实验室,北京102206

出　　处：《高电压技术》2020年第12期4182-4193,共12页High Voltage Engineering

基　　金：国家自然科学基金(51737005;51807060);北京市自然科学基金(3192036);中央高校基本科研业务费专项资金(2018MS165)。

摘　　要：金属微粒是威胁气体绝缘输电管道(GIL)设备绝缘性能的主要因素之一,微粒陷阱作为抑制GIL内微粒的重要措施,其设计技术是GIL的关键技术之一。该文对GIL微粒陷阱设计技术研究进展进行梳理,首先简要介绍了GIL微粒陷阱的发展历程,并对已有的GIL微粒陷阱设计方法进行归纳总结;然后概述了GIL内金属微粒的运动特性,重点对比了交、直流电压下金属微粒运动特性的差异性,并进一步分析了交、直流GIL中微粒陷阱的捕捉机制,提出了相应的设计原则;此外介绍了微粒陷阱参数优化与布置策略等关键设计技术,提出了通过建立微粒运动轨迹计算模型分析陷阱捕捉效果的方法,获得陷阱优化参数与最佳布置位置;最后归纳了微粒陷阱设计仍需解决的关键问题。这些研究成果的总结可为GIL内部微粒陷阱设计提供参考和借鉴。Metal particle is supposed to be one of the main factors endangering the insulation of gas insulated transmission line(GIL) equipment. Particle trap is an important measure to suppress metal particulate pollutants, and its design technique is one of the key technologies of GIL. We review the research progress in GIL particle trap design. Firstly, we introduce the development process of GIL particle trap, and summarize the existing methods for designing particle trap. Secondly, we summarize the motion characteristics of metal particle in GIL. By comparing the difference in the motion characteristics of metal particles under AC and DC voltages, we analyze the trapping mechanism and propose the design principles of particle traps in AC and DC GIL. Thirdly, we introduce the key design technology of particle trap, namely, parameters optimization and layout strategy, and propose a calculating model of particle trajectory to analyze the effect of trap capture and obtain the optimal parameters and placement of trap. Finally, we point out the key problems to be solved in the design of particle trap. The summary of these research results can provide references for the design of particle trap in GIL.

关 键 词：气体绝缘输电管道 金属微粒 微粒陷阱 设计优化 布置策略 

分 类 号：TM75[电气工程—电力系统及自动化]