CAJ | 학술논문

针对湖南电网研发的新型内嵌式地线地线新型直流融冰技术，提出地线直流融冰的所涉及的两个重要的参数(临界融冰电流和最大融冰电流)概念和计算方法。基于有限元法，以 GJ-70电线为模型，建立3D热-电耦合仿真模型，仿真得出不同气候、温度条件下的临界融冰电流，以及地线正常运行所允许的最大电流，与试验人员得出的实验数据进行对比，进一步验证这种融冰技术的优越性，并为运行人员有效的融冰电流范围提供了参考依据。
침대호남전망연발적신형내감식지선지선신형직류융빙기술，제출지선직류융빙적소섭급적량개중요적삼수(림계융빙전류화최대융빙전류)개념화계산방법。기우유한원법，이 GJ-70전선위모형，건립3D열-전우합방진모형，방진득출불동기후、온도조건하적림계융빙전류，이급지선정상운행소윤허적최대전류，여시험인원득출적실험수거진행대비，진일보험증저충융빙기술적우월성，병위운행인원유효적융빙전류범위제공료삼고의거。
In this paper,novel embedded ground wire in Hunan power system research and development of new DC ice melting technology,put forward two important parameters involved ground DC ice melting(the least ice-melting current and the max allowed current)concept and calculation method.According to the configuration GJ-70 wire,a 3D thermal-electric coupled simulation model of wire covered with ice was constructed based on finite element method(FEM)using ANSYS soft-ware.Simulation of the ice melting current critical different climate,temperature,and maximum current allows the ground running,compared with experimental data obtained by test personnel,further verify the superiority of the ice melting tech-nology,and for the operating personnel effective ice melting current range offers reference.