超高压输电线路附近民用建筑物区域电场数值模拟

传统方法模拟电荷位置及个数的选择对计算结果产生直接影响,仅可进行定性分析,不能有效实现电场数值模拟。提出一种新的基于ANSYS的超高压输电线路附近民用建筑物区域电场数值模拟方法。在ANSYS环境下确定不同单元的种类、材料等,按照实际研究对象构造输电导线与民用建筑物的计算模型,计算超高压输电线路附近民用建筑物区域电场值。研究民用建筑物高度对电场的影响,完成超高压输电线路附近民用建筑物房屋电场数值模拟、棱边倒角前后民用建筑区域电场数值模拟。结果表明:超高压输电线路附近民用建筑物不应过高;超高压输电线路附近民用建筑物棱角电场畸变较棱边更大,屋顶室内与阳台的电场屏蔽效果更加显著;对建筑物棱边进行倒角处理无法优化周围区域电场环境。

Numerical simulation of electric field in civil buildings near EHV transmission lines

The traditional method of simulating the location and number of charges has a direct effect on the calculation results. Only qualitative analysis can be carried out, so the numerical simulation of electric field can not be effectively realized. A new ANSYS based numerical simulation method for electric field in civil buildings near EHV transmission lines is proposed. In the Ansys environment, the types and materials of different units are determined. According to the actual research objects, the calculation models of transmission lines and civil buildings are constructed to calculate the regional electric field values of civil buildings near UHV transmission lines. The influence of the height of civil buildings on the electric field is studied, and the numerical simulation of the electric field in civil buildings near the EHV transmission line and the numerical simulation of the regional electric field of civil buildings before and after the edge chamfering are completed. The results show that the civil buildings near the UHV transmission line should not be too high; the angular field distortion of the civil buildings near the EHV transmission lines is larger than the edge edge, and the shielding effect of the electric field in the roof and the balcony is more significant; the chamfering treatment of the edge of the building can not optimize the environment of the electric field in the surrounding area.