CAJ | 학술논문

针对近年来频繁发生的输电线路风偏闪络事故，从风偏机理，风偏闪络规律及特点两个方面分析了输电线路风偏故障。提出了一种新型输电线路风偏在线监测系统，系统采用无线风偏监测仪，通过上下两个风偏角结合进行计算，得出绝缘子串实际的风偏角；介绍了监测系统的系统组成、实现的功能和无线风偏监测单元的设计原理；研究了新型风偏角计算的数学模型，经过现场数据分析，与传统计算方法对比，采用该模型能够更准确地反映实际的导线风偏情况。目前，该系统已经在向家坝-上海±800kV特高压直流输电工程运行，系统运行情况良好，能够有效指导高压输电线路运行维护管理。
침대근년래빈번발생적수전선로풍편섬락사고，종풍편궤리，풍편섬락규률급특점량개방면분석료수전선로풍편고장。제출료일충신형수전선로풍편재선감측계통，계통채용무선풍편감측의，통과상하량개풍편각결합진행계산，득출절연자천실제적풍편각；개소료감측계통적계통조성、실현적공능화무선풍편감측단원적설계원리；연구료신형풍편각계산적수학모형，경과현장수거분석，여전통계산방법대비，채용해모형능구경준학지반영실제적도선풍편정황。목전，해계통이경재향가패-상해±800kV특고압직류수전공정운행，계통운행정황량호，능구유효지도고압수전선로운행유호관리。
In accordance with the frequent flashover of transmission lines caused by wind deviation, we analyzed wind power transmission lines malfunction from two aspects of wind oscillation mechanism, wind oscillation rules and features, and put forward a new kind of on-line monitoring system for wind power transmission lines. Meanwhile, we adopted wireless wind oscillation monitors, and used upper and lower wind deflection angle to compute the actual wind deflection angle of insulator string, and introduced the monitoring system components of the system, the function and wireless realization design principle of wind monitoring unit is presented. Moreover, a mathematic model for a new deflection angle calculation was studied. The data analysis reveals that, the model is accurate for the actual conductor wind oscillation. This system has successfully been put into operation in 800kV Xiang Jiaba - Shanghai ultra high voltage project.