特高压变电站人体工频电场暴露水平评估

发布时间：2018-01-05 00:23

  本文关键词：特高压变电站人体工频电场暴露水平评估　出处：《中国电机工程学报》2014年24期 　论文类型：期刊论文

  更多相关文章： 特高压 变电站 人体 工频电场 电流密度 有限元法

【摘要】：人体在特高压变电站内的工频电场暴露水平一直受到研究人员的关注,但相关研究却并不多见。以特高压长治站为研究对象,采用ANSYS谐响应分析方法,通过子模型技术实现了特高压变电站内含人体空间域的工频电场分布计算。研究了人体的电位、电场强度和电流密度分布及鞋子的影响;对比了站内不同路径上电场分布的数值计算结果与实地测量结果以及人体内部电流的数值计算结果与理论公式计算结果;验证了所用计算方法的正确性与所得计算结果的准确性。研究结果表明:人体内部以传导电流为主,最大感应电流密度为9.15 mA/m2,满足职业标准。该研究成果可以判定特高压变电站内工频电场对人体是否安全并为后续工程提供参考。
[Abstract]:The level of human exposure to power frequency electric field in UHV substation has been concerned by researchers, but the related research is rare. Taking the UHV Changzhi Station as the research object, the ANSYS harmonic response analysis method is adopted. The power frequency electric field distribution in the space domain of human body in UHV substation is calculated by submodel technique. The potential, electric field intensity and current density distribution of human body and the influence of shoes are studied. The numerical results of the electric field distribution on different paths in the station are compared with the results of the field measurements and the results of the numerical calculation of the internal currents of the human body and the results of the theoretical formulas. The correctness of the calculation method and the accuracy of the calculated results are verified. The results show that the main inductive current is the human body, and the maximum inductive current density is 9.15 mA/m2. The research results can be used to determine whether the power frequency electric field in UHV substation is safe to human body and to provide reference for future projects.
【作者单位】： 电力设备电气绝缘国家重点实验室(西安交通大学);
【分类号】：TM15;R14
【正文快照】： 0引言中国电力负荷与能源的分布不均衡,随着国民经济的持续发展,建设具有容量大、损耗低等特点的特高压电网已成为中国电力工业发展的必由之路[1]。然而随着电压等级的提高,由输变电系统产生的工频电磁场对人体的影响也日益受到社会的关注[2]。特高压变电站内电磁环境复杂,变，

本文编号：1380779