Wide-Band Modeling of Grounding Grid Based on the Fractional Order Differential Theory

Abstract:

Research on the wide-band modelling method of the grounding grid and the analysis of the electromagnetic transients on the grounding grid has significant practical meaning on the engineering problems, e.g. overvoltage protection, insulation coordination and electromagnetic interference and the increasing levels of capacity in the power and communication systems. This paper presents strategies which establish the equivalent circuit for computing the transient performance of grounding grid base on fractional order differential theory, which takes into account the fractional frequency characteristics of soil permittivity. In order to validate the presented method, an example is considered and the transient responses are compared with the results obtained by the method of moments.

• Periodical: Advanced Materials Research (Volumes 860-863)
• Pages: 2292-2295
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.860-863.2292
• Online since: December 2013
• Authors: Hua Ying Dong, Li Ze Xu, Gui Shu Liang, Xin Liu, Xu Cheng
• Keywords: Fractional Order, Grounding Grids, Port Circuit, Transient Performance

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