高压交流输电线路工频电场强度理论计算公式改进研究

为使高压、超高压交流输电线路工频电场强度理论计算符合实际,在研究传统交流输电线路电场强度的二维和三维计算公式基础上改进为三维计算公式。通过对已建高压、超高压交流输电线路电场强度进行实地测量,并与改进后理论计算结果进行对比分析,得出其理论变化趋势、计算值都与实测值及变化趋势相近。不同于传统三维计算方法,改进后的计算公式简单易用,计算精度与传统三维理论计算精度相同,在保证计算精度的同时更具有实际应用价值。

Study on the improve high voltage alternating current transmission line frequency electric field intensity theory calculation formula

To make the high and extra-high voltage alternating current transmission line frequency electric field intensity theory calculation results conforms to the actual,the improvement of three-dimensional electric field intensity calculation formula is studied on the basis of two-dimensional and traditional three-dimensional.Through the existing high and extra-high voltage alternating current transmission lines electric field intensity of field measurement and compared with the theoretical calculation results.The results show that theoretical change tendency and calculation values are close to the measured values and change tendency.Different from traditional three-dimensional calculation method, the improved calculation formula is simple and easy to use,and the calculation accuracy as same as the traditional three-dimensional precision.At the same time ,in the guarantee the calculation accuracy has more practical application value.