分层土壤中三维复合接地网分析软件的开发

Developement of Analysis Software of 3D Grounding System in Multi-layer Soil

基于电磁场和最优化理论开发分层土壤电阻率模型的核心计算程序,基于电路和电磁场相结合的方法,建立分层土壤下复杂三维接地系统接地电阻及地表电位、跨步电势和接触电势分布的核心计算程序。结合工程分析习惯、接地国家标准、IEEE标准,开发分层土壤中三维复合接地网分析软件。该软件能够分析大地地质的不均匀性,并进一步分析其中接地网的性能。分析中能够考虑接地装置的材料特性、结构变化、各种降阻措施、以及周围其他埋地管线的影响,不但所分析的模型能够尽量接近实际情况,而且计算速度快、结果准确。软件采用向导式应用和三维全景图形模式,具有界面友好、便于使用、可视化强的特点。为发、变电站、输电杆塔的接地设计和安全评估提供有力的技术支撑。

Based on the electromagneticifeld and the optimization theory, the core program for analysis of the multi-layer soil is developed. Based on the circuit and electromagnetic field combination method, the core program for analysis of the performance of the 3D grounding system in multi-layer soil is developed. By considering the habits of engineer, the national and the IEEE standards, the analysis software of 3D grounding system in multi-layer soil is developed. The software can analyze the geological inhomogeneity and the performance of grounding grids. The material properties, structures of the grounding system, a variety of grounding resistance reduction measures, as well as other buried pipelines around the grounding system can be considered. The calculation speed is fast. The results is accurate. By using the wizard application and 3D graphics mode, the software has the advantages such as friendly interface, easy to use, and strong visualization. It can provide the powerful technical support for the design and the safety assessment of substation and tower grounding device.