高电压技术2011,Vol.37Issue(3):666-671,6.
±800kV特高压直流线路采用5分裂导线的电磁环境特性分析
Electromagnetic Environment Profile of -1-800 kV UHVDC Transmission Lines Using 5 Bundled Conductors
摘要
Abstract
Bundle conductors are widely used in the high voltage direct current (HVDC) power transmission in order to possess a higher line capacity, to optimize the electromagnetic environment, and to narrow down the width of transmission line corridor. By the use of successive image method, the finite element method and formula of BPA and CISPR, the total field, ion current density, audible noise, radio interference, and corona loss of two kinds of conductors ,I. E. , 5×LGJ-1120/50 and 6 X LGJ-900/40 were assessed, respectively. The technical advantages and disadvantages were compared in detail. The results show that both 5×LGJ-1120/50 and 6× LGJ-900/40 can meet the requirements of the electromagnetic environment under the condition that the cross section area of both conduc tors are approximately same. However, it is worth pointing out that the conductor with 5 X LGJ-1120/50 is more competitive than that with 6 X LGJ-900/40 if the investment of the power line is concerned.关键词
特高压直流/电磁环境/合成场强/离子流密度/可听噪声/无线电干扰/分裂导线/电晕损耗/电阻损耗Key words
UHVDC/ electromagnetic environment/ total field/ ion current density/ audible noise/ radio interference/ bundle conductors/ corona loss/ resistance loss分类
信息技术与安全科学引用本文复制引用
施春华,朱普轩,蒋剑,邹军,袁建生..±800kV特高压直流线路采用5分裂导线的电磁环境特性分析[J].高电压技术,2011,37(3):666-671,6.基金项目
铁道部科技研究基金. ()