【摘要】 为研究特高压双回交流输电线路下方的工频电场,首先介绍了模拟电荷法的基本理论,并利用模拟电荷法建立输电线路模型,对1 000 kV皖电东送特高压双回输电线路工频电场进行计算分析。然后,研究了导线高度、相导线的相序排列、导线分裂间距和分裂数目变化时对工频电场的影响。最后,与1 000 kV特高压双回输电线路下方工频电场实验测量值对比验证了计算方法的正确性。分析结果可为特高压交流输电线路的工程设计提供参考。更多还原

【Abstract】 In order to study the power frequency electric field under the UHV double circuit transmission line,the basic theory and mathematical model of the charge simulation method are introduced firstly. The charge simulation method is used to establish the transmission line model,and the power frequency electric field of the 1 000 kV Anhui-to-East UHV double-circuit transmission line is calculated and analyzed. Then,the influence of conductor height,phase sequence of phase conductor,splitting distance and splitting number on the power frequency electric field are studied.Finally,the correctness of the calculation method is verified by comparing the measured values of thepower frequency electric field under the 1 000 kV UHV double-circuit transmission line. The analysis results can provide a reference for the engineering design of UHV AC transmission lines.更多还原