基于分区模型的高铁接触网电场对人体影响数值计算与分析
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孙惠娟(1982—),女,副教授,硕士,研究方向为电磁场数值分析。

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TM744

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国家自然科学基金项目 (51567007);江西省自然科学基金项目(2015ACB20017,20171BAB206042);江西省教育厅科技项目 (GJJ160525,GJJ160526);江西省“百人远航工程”(2017080)


Numerical Calculation and Analysis of the Influence of Electric Field on Human Body by High-speed Railway Catenary Based on Subarea Model
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    摘要:

    为探究高铁站台上人体所受电场辐射大小以确保乘客的安全,运用有限元法对高速铁路接触网在站台引起的电场空间分布进行仿真计算,并建立人体部位属性仿真模型,采用分区模型的方法对人体周围电场进行快速准确的仿真计算,以克服常规网格细分法固有的计算速度与精度矛盾;分析了高铁站台上方人体感应电流和接触电流,结合国家标准限值对人体周围电场环境的安全性进行了综合评价。 研究表明:① 分区模型法具有精度高且省时的优势;② 接触网电场引起的感应电流及接触电流对于黄线外候车的乘客是安全的。

    Abstract:

    To investigate the radiation level of the electric field on the high-speed rail platform to ensure the safety of the passengers, the finite element method was used to simulate the spatial distribution of the electric field caused by the high-speed railway catenary, and the simulation model of the body part attribute was estab- lished. The subarea model was adopted to realize fast and accurate simulation calculation of electric field around human and overcome the contradiction between the computational speed and accuracy when using conventional mesh subdivision method. The inductive current and contact current of the human body on the high speed rail- way platform were analyzed, and the safety of the electric field environment around the human body was compre- hensively evaluated according to the national standard limit. The research results shows that: ① The subarea model method has the advantages of high accuracy and saving time; ② The passengers of the waiting line out- side the yellow line have good adaptability to the induced current and contact current induced by electric field of the catenary.

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孙惠娟,贺璨,刘兵,刘君.基于分区模型的高铁接触网电场对人体影响数值计算与分析[J].华东交通大学学报,2018,35(3):119-126.

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  • 在线发布日期: 2021-05-25
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