土壤分层结构下传输线感应雷电压算法研究

高金阁; 李京校

doi:10.21656/1000-0887.390093

土壤分层结构下传输线感应雷电压算法研究

doi: 10.21656/1000-0887.390093

高金阁^1,2,
李京校¹

¹北京市气象灾害防御中心, 北京 100089;²北京城市气象研究院, 北京 100089

基金项目: 北京市自然科学基金（8192052）

详细信息

作者简介:
高金阁（1987—），男，工程师(通讯作者. E-mail: gjg_ge@126.com).

中图分类号: TM863
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- 被引次数: 0
出版历程
- 收稿日期: 2018-03-27
- 修回日期: 2018-12-18
- 刊出日期: 2019-08-01

Study on Lightning Induced Voltages in Transmission Lines Under Soil Conductivity Stratified Structures

GAO Jinge^1,2,
LI Jingxiao¹

¹Beijing Meteorological Disaster Prevention Center, Beijing 100089, P.R.China;²Beijing Urban Meteorological Research Institute, Beijing 100089, P.R.China

摘要

摘要: 针对架空传输线感应雷过电压求解时理想地表假设与真实情况之间的矛盾，提出了一种基于Rusck模型，利用等效线高取代实际线高的方法，实现了土壤电导率分层结构下传输线感应雷电压的快速求解.与FDTD模拟结果对比验证了该方法的有效性和优越性.研究结果表明：对于电导率小于0.1 S/m的单质土壤类型，求解感应电压时应考虑电导率的影响，且电压峰值随电导率减小而增大.对于分层土壤结构，当上层土壤导电性较小时，感应电压随上层土壤增厚而变大；反之，随上层厚度增加而减小，当厚度超过5 m时，可忽略分层结构的影响.
- 土壤电导率 /
- 分层结构 /
- Rusck模型 /
- 感应雷电压
Abstract: To solve the contradiction between the ideal hypothesis and the real situation in solution of the lightning induced voltage model, the Rusck model was improved through replacement of the actual line height with the equivalent line height. This method enables fast solution of lightning induced voltages in transmission lines under soil conductivity stratified structures. The effectiveness and superiority of the improved Rusck model were verified through comparison with the FDTD results. The simulation results show that, for a single soil layer with a conductivity less than 0.1 S/m, the influence of the conductivity should be considered in solution of the induced voltage, and the peak voltage will increase with the decrease of the conductivity. For a stratified structure, the induced voltage will increase with the thickening of the upper soil layer with a less conductivity; on the contrary, the induced voltage will decrease with the thickening of the upper layer, and the effects of soil stratification can be ignored for the case of an upper soil layer with a thickness exceeding 5 m.
- soil conductivity /
- stratified structure /
- Rusck model /
- lightning induced voltage

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参考文献(24)

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