数字模拟研究电力频率暴露于电磁悬挂高速磁铁列车的驱动绕
1Key Laboratory of Opto-Electronic Technology and Intelligent Control, Ministry of Education, Lanzhou Jiaotong University, 88 West Anning Road, Anning District, Gansu Province, Lanzhou 730070, China.
Radiation protection dosimetry
|May 17, 2025
概括
磁升列车内部的电磁场 (EMF) 对乘客来说是安全的. 数字模型显示,火车系统的暴露水平远低于国际安全限值,确保乘客的健康.
科学领域:
- 电磁主义 电磁主义
- 生物物理学的生物物理.
- 运输工程 运输工程
背景情况:
- 乘客的安全和健康在开发新运输系统中至关重要,比如磁悬浮列车.
- 了解磁升列车内的电磁环境对于评估潜在的健康风险至关重要.
- 之前的研究还没有完全量化磁场 (EMF) 暴露在磁铁列车内的乘客.
研究的目的:
- 以数值建模并评估磁铁列车内乘客的电磁暴露风险.
- 测量火车车内50赫兹电磁场的水平,这些电磁场来自轨道驱动线圈.
- 将计算的EMF暴露水平与已确定的国际安全准则进行比较.
主要方法:
- 开发数值模型,用于马格列车轨道绕道,火车车身和人类乘客.
- 在火车车内模拟50Hz三相对称电流EMF.
- 计算不同位置的乘客的磁流密度 (RRB) 和诱导电场强度 (RRBE) 的计算.
- 模拟的电磁场水平与国际非电离辐射保护委员会 (ICNIRP) 准则的比较.
主要成果:
- 长长的定子绕会在车内产生电磁泄漏,特别是在窗户附近.
- 计算的最大B 的头部为0.59微T,干为1.53微T.
- 计算的最大电压为头部的~337微伏/m,而干的~57.8微伏/m.
- 靠近窗户的乘客经历了更高的电磁场暴露,特别是对"E" (头) 和"B" (骨) 的接触.
- 所有模拟的电磁场值都明显低于ICNIRP50赫兹暴露限值.
结论:
- 磁升列车系统,特别是来自长定子绕的50Hz电磁场,对乘客健康没有重大风险.
- 该研究提供了在磁变列车系统中对电磁场暴露剂量计的基本参考数据.
- 乘客在车中的位置会影响电磁场暴露,窗口座椅显示较高水平,但仍在安全范围内.
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