工程科学学报，第40卷，第9期：1115-1122,2018年9月 Chinese Journal of Engineering,Vol.40,No.9:1115-1122,September 2018 DOI:10.13374/j.issn2095-9389.2018.09.013;http://journals.ustb.edu.cn 基于GaN材料的特高压输电线路的验电标识 陈康，王力农四，李恩文，宋斌，方雅琪，李小春，陈天柱，简思亮 武汉大学电气工程学院，武汉430072 ☒通信作者，E-mail:wangln@qq.com 摘要研制了一种无机材料构成的验电标识，放置在导线周围，通过电场驱动电子的运动，促进载流子复合，进而使材料发 光，从而判断带电情况，其作为验电标识使用非常便捷.选取了氮化镓GaN材料进行研究，以GaN、InGaN等材料为基础，通过 溶胶凝胶法、气相外延等方法制备接触层、基片层、材料层等结构，进而获得了验电标识，该验电标识的发光层是具有多量子 肼结构的纳米棒阵列.然后对其进行了电学光学性能参数测试，获得了有关特性曲线，通过Ansoft-maxwell有限元软件进行 仿真，分析材料在特高压输电线路周围的电场分布，通过试验分析验电标识发光所需求的电磁环境.最后模拟导线现场进行 测试.研究表明，该低场致发光特性的验电标识具有发光功耗低，发光明显等优点，其处于所在区域的电场强度达到1.2×10 V·m'以上时，可激发发光，此时所注入电流约为1.1mA.通过仿真和试验分析可知带电特高压输电线路周围的空间电场强 度满足验电标识发光指示的要求，同时空间杂散电流和材料本身的电容效应提供注入电流.该验电标识通过材料本身发光特 性来指示带电状态，安装在距离特高压导线轴线13cm及以内的范围即可实现验电，通过封装具有较好的耐候性能，同时避免 了复杂的电路装置验电存在易受电磁干扰，可靠性差等问题. 关键词氮化镓：验电标识：电致变色：有限元仿真：特高压输电线路 分类号TB34 Electrical inspection mark of UHV transmission line based on GaN material CHEN Kang,WANG Li-nong,LI En-wen,SONG Bin,FANG Ya-qi,LI Xiao-chun,CHEN Tian-zhu,JIAN Si-liang School of Electrical Engineering,Wuhan University,Wuhan 430072,China Corresponding author,E-mail:wangln@qq.com ABSTRACT At present,the traditional insulated pole electroscope is used for electrical inspection in high-voltage transmission lines.However,when it is used in ultra-high voltage (UHV)transmission lines,the length of its insulated rod is large,and there are disadvantages such as large working intensity,inconvenience,and hazardous operation.In this study,an electroluminescent inorganic material was made to be used for inspection mark.The material was placed around the wire,so that it glowed during the electric field- driven movement of electrons to promote carrier recombination,through which the charged situation could be determined.Therefore, the electrification of the line can be judged through the material luminescent properties,making it very convenient to be used for in- spection mark.In this study,GaN materials were investigated.Based on the GaN,InGaN,and other materials,the contact layer,sub- strate layer,material layer and other structures were made by methods such as sol-gel method and gas phase epitaxy.Then the inspec- tion mark was prepared.The light-emitting layer was a nanorod array with a multi-quantum hydrazine structure.The electrical and opti- cal properties of the inspection mark were tested,and the relevant characteristic curve was obtained.Through a simulation of the An- soft-maxwell finite element software,the electric field distribution of the inspection mark and surrounding transmission lines were ana- lyzed.Through experiments,the electromagnetic environment needed for electroluminescence was tested in the high-voltage test hall of Wuhan University.Finally,the inspection mark was tested in a working environment simulated in the Feng-huang ultra-high voltage 收稿日期：2017-06-08 基金项目：湖北省自然科学基金创新群体资助项目(2016CFA007)工程科学学报，第 40 卷，第 9 期: 1115--1122，2018 年 9 月 Chinese Journal of Engineering，Vol． 40，No． 9: 1115--1122，September 2018 DOI: 10． 13374 /j． issn2095--9389． 2018． 09． 013; http: / /journals． ustb． edu． cn 基于 GaN 材料的特高压输电线路的验电标识 陈 康，王力农，李恩文，宋 斌，方雅琪，李小春，陈天柱，简思亮 武汉大学电气工程学院，武汉 430072 通信作者，E-mail: wangln@ qq． com 摘 要 研制了一种无机材料构成的验电标识，放置在导线周围，通过电场驱动电子的运动，促进载流子复合，进而使材料发 光，从而判断带电情况，其作为验电标识使用非常便捷． 选取了氮化镓 GaN 材料进行研究，以 GaN、InGaN 等材料为基础，通过 溶胶凝胶法、气相外延等方法制备接触层、基片层、材料层等结构，进而获得了验电标识，该验电标识的发光层是具有多量子 肼结构的纳米棒阵列． 然后对其进行了电学光学性能参数测试，获得了有关特性曲线，通过 Ansoft--maxwell 有限元软件进行 仿真，分析材料在特高压输电线路周围的电场分布，通过试验分析验电标识发光所需求的电磁环境． 最后模拟导线现场进行 测试． 研究表明，该低场致发光特性的验电标识具有发光功耗低，发光明显等优点，其处于所在区域的电场强度达到 1. 2 × 106 V·m － 1以上时，可激发发光，此时所注入电流约为 1. 1 mA． 通过仿真和试验分析可知带电特高压输电线路周围的空间电场强 度满足验电标识发光指示的要求，同时空间杂散电流和材料本身的电容效应提供注入电流． 该验电标识通过材料本身发光特 性来指示带电状态，安装在距离特高压导线轴线 13 cm 及以内的范围即可实现验电，通过封装具有较好的耐候性能，同时避免 了复杂的电路装置验电存在易受电磁干扰，可靠性差等问题． 关键词 氮化镓; 验电标识; 电致变色; 有限元仿真; 特高压输电线路 分类号 TB34 收稿日期: 2017--06--08 基金项目: 湖北省自然科学基金创新群体资助项目( 2016CFA007) Electrical inspection mark of UHV transmission line based on GaN material CHEN Kang，WANG Li-nong ，LI En-wen，SONG Bin，FANG Ya-qi，LI Xiao-chun，CHEN Tian-zhu，JIAN Si-liang School of Electrical Engineering，Wuhan University，Wuhan 430072，China Corresponding author，E-mail: wangln@ qq． com ABSTＲACT At present，the traditional insulated pole electroscope is used for electrical inspection in high-voltage transmission lines． However，when it is used in ultra-high voltage ( UHV) transmission lines，the length of its insulated rod is large，and there are disadvantages such as large working intensity，inconvenience，and hazardous operation． In this study，an electroluminescent inorganic material was made to be used for inspection mark． The material was placed around the wire，so that it glowed during the electric field￾driven movement of electrons to promote carrier recombination，through which the charged situation could be determined． Therefore， the electrification of the line can be judged through the material luminescent properties，making it very convenient to be used for in￾spection mark． In this study，GaN materials were investigated． Based on the GaN，InGaN，and other materials，the contact layer，sub￾strate layer，material layer and other structures were made by methods such as sol-gel method and gas phase epitaxy． Then the inspec￾tion mark was prepared． The light-emitting layer was a nanorod array with a multi-quantum hydrazine structure． The electrical and opti￾cal properties of the inspection mark were tested，and the relevant characteristic curve was obtained． Through a simulation of the An￾soft-maxwell finite element software，the electric field distribution of the inspection mark and surrounding transmission lines were ana￾lyzed． Through experiments，the electromagnetic environment needed for electroluminescence was tested in the high-voltage test hall of Wuhan University． Finally，the inspection mark was tested in a working environment simulated in the Feng-huang ultra-high voltage