为使接触网绝缘子电场分布的计算结果更接近真实情况,基于静电场有限元法,建立考虑接触网各组成部件的全尺寸三维模型,仿真分析接触网部件及线路环境对腕臂绝缘子电位和电场分布的影响.结果表明:与单绝缘子仿真模型相比,全尺寸模型绝缘子电场分布发生较大变化,且同型号不同安装位置的绝缘子电场分布不同,同一绝缘子不同圆周方向的电场分布亦有差别.接触网模型部件中,绝缘子连接金具、支柱材质因素对绝缘子电场分布影响较大,而绝缘子材质、导线因素影响相对较小.接触网线路建模环境中,供电方式、列车经过与隧道线路因素对绝缘子电场分布影响较大,而复线铁路因素影响相对较小.%In order to make the calculation of electric field distribution of catenary insulators closer to the practi-cal situation,a full-scale three-dimensional model considering various components of the catenary was estab-lished based on the electrostatic field finite element method to simulate the impact of catenary components and line environment on the potential and electric field distribution of cantilever insulators.The simulation results show that compared with a single insulator simulation model,significant changes occurred in the electric field distribution of insulators in the full-scale model.Further,the insulators with the same type but different instal-lation locations showed different electric field distribution,while the same insulator with different circumferen-tial directions may also have different electric field distribution.In terms of the catenary model components,the insulator hardware fittings and strut materials had great influences on the electric field distribution,while the influences caused by insulator materials and wires were relatively less.In terms of the catenary line modeling environment,the power supply modes,train passing and tunnel lines had great influences on the electric field distribution of insulators,while double-track railway produced relatively small influences.
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