刘勇,刘承志,任红昕,孙明刚,杨仲吕,郭鑫,李慧奇.±1100kV吉泉线并行交流特高压线路施工中电磁感应及接地分析[J].电测与仪表,2019,56(21):103-109. liuyong,liuchengzhi,Ren Hongxin,sunminggang,yangzhonglv,guoxin,lihuiqi.Research on parallel line induction of 1000 kV Anhui-to-East UHV AC line and suppression measure[J].Electrical Measurement & Instrumentation,2019,56(21):103-109.
±1100kV吉泉线并行交流特高压线路施工中电磁感应及接地分析
Research on parallel line induction of 1000 kV Anhui-to-East UHV AC line and suppression measure
The Jiquan ±1100kV transmission line in the construction close multiple parallel Anhui-to-East UHV 1000kV AC transmission lines. Since the electromagnetic coupling between the lines makes the Jiquan transmission line in the construction facing serious problems of induction. A three-dimensional moment method model for transmission lines is established in this paper. And the induced voltage and induced current of the Jiquan transmission line under construction, which is parallelling with a double-circuit UHV AC line, are calculated and analyzed. The main factors affecting electrostatic induction voltage and electromagnetic induction current are also analyzed. In the end, a study is conducted on different grounding schemes during construction and the proposed grounding scheme are put forward.
