特高压输电线路电气和电晕特性研究

研究特高压输电线路的主要电气参数、导线表面最大电场强度与分裂导线结构几何参数的关系，介绍工程上适用的主要电气参数和导线表面最大电场强度的计算方法。以现有高压试验数据为基础，探讨特高压输电线路的电晕随天气条件和分裂导线几何参数变化的规律。按照不同天气条件下人对可听噪声感受的不同限值要求，提出1000kV输电线路分裂导线必须达到的基本几何参数。

Study on Electric Characteristic and Corona Performance of UHV AC Transmission Line

In this paper, the relation among main electrical parameters, maximum surface electric gradient of bundle conductor and geometry parameters of bundle conductor configuration of UHV AC transmission line is studied. The calculation approaches for main electrical parameters and maximum surface electric gradient of bundle conductor, which are suitable to engineering calculation, are also presented. Based on available high voltage testing data, the rule of corona, which varies with weather conditions and geometry parameters of bundle conductor for UHV AC transmission line are discussed. According to the different limited values of audible noises under various weather conditions, the basic geometry parameters of bundle conductor for 1000kV transmission line that have to reach to are proposed.