摘要
利用有限元多物理场仿真软件COMSOL,分析了1000 kV/500 kV同塔混压四回交流输电线路下人体的磁感应强度和感应电场强度的分布情况。计算结果表明:在1000 kV与500 kV共同运行时人体中磁感应强度与感应电场强度最大值分别为8.02μT和13.4 mV/m;该结果与国际非电离辐射防护委员会规定的人体电磁暴露限值比较,均低于限值。分析了1000 kV或500 kV单独运行和9种典型相序排列时的情况,计算结果也低于限值。说明1000 kV/500 kV同塔混压四回交流输电线产生的电磁暴露不会给人体带来健康威胁。
The finite-element multi-physics simulation software COMSOL was used to analyze the effects on the human body of a quadruple-circuit AC transmission line with a 1000/500 kV dual voltage on the same tower.The magnetic induction intensity and induced electric field intensity in body tissues were calculated,and their maximum values in the human body were found to be 8.02μT and 13.4 mV/m,respectively,under the conditions of 1000 kV and 500 kV.These results were lower than the limits of the human electromagnetic(EM)exposure limits specified by the International Commission on Non-Ionizing Radiation Protection(ICNIRP).The case of a 1000 kV or 500 kV single operation and nine typical phase sequence arrangements were analyzed,and the calculation results were also lower than the ICNIRP limits.Based on the results,the EM exposure generated by a quadruple-circuit AC transmission line with a 1000 kV/500 kV dual voltage on the same tower will not pose a threat to human health.
作者
杜庆中
逯迈
DU Qingzhong;LU Mai(Key Laboratory of Opto-Electronic Technology and Intelligent Control,Ministry of Education,Lanzhou Jiaotong University,Lanzhou 730070,China;College of Automation and Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)
出处
《辐射研究与辐射工艺学报》
CAS
CSCD
2020年第2期41-50,共10页
Journal of Radiation Research and Radiation Processing
基金
国家自然科学基金(51567015、51867014)
甘肃省教育厅项目(2018D-08)资助。
关键词
电磁环境
人体模型
公众电磁暴露
感应电场强度
安全评估
Electromagnetic environment
Body model
Public electromagnetic exposure
Induced electric field intensity
Safety assessment
