摘要
导线选型及分裂方式的确定是发展±1 100 k V特高压直流输电工程的关键技术之一,对线路的可靠运行、环境保护和控制工程投资至关重要。采用国际公认的、经过实际工程验证且广泛使用的计算分析方法,研究了±1 100k V直流输电线路的结构参数(导线分裂数、子导线截面、导线分裂间距、极导线对地高度和极导线间距)对合成电场、可听噪声和无线电干扰场强的影响;对不同的导线方案进行了经济性比较。根据电磁环境预测分析及经济比较结果,确定了±1 100 k V直流输电线路的导线结构。
Determination of conductor type selection and bundle structure is one of the key technologies for developing± 1 100 kV UHVDC transmission line projects, which is of vital importance to the reliable operation of transmission lines, the environmental protection and the control of project investment. Employing the internationally recognized, practically verified and widely used calculation and analysis methods, the influence of the structure parameters of ±1 100 kV UHVDC transmission lines, such as splitting number, sectional area of sub - conductors, splitting - wire spacing, conductor elevation to the ground and pole conductor distance, on total electric fields, audible noise and radio interference filed intensity is studied. The economic comparison is carried out with regard to different conductor schemes. Finally, the conductor structure of ±1 100 kV UHVDC transmission lines is determined on the basis of electromagnetic environment forecast analysis and economic comparison results.
出处
《四川电力技术》
2015年第2期6-9,50,共5页
Sichuan Electric Power Technology
