Frequency Domain Grounding Grid Analysis Based on the Finite Element Technique

Vujević, Slavko; Krolo, Ivan; Lovrić, Dino

doi:10.23919/softcom.2019.8903714

Cited by 2 publications

(2 citation statements)

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“…An important aspect must be respected: the fields must remain unchanged during the modification of the Lorenz potentials. The SEP is essential in grounding grid analysis; therefore, it has to be computed [5]. The SEP of ICS can be obtained as the sum of the SEP of VICS and HICS.…”

Section: The Adjustment Of Lorenz Potentialsmentioning

confidence: 99%

“…The MPIE formulation is important in this theoretical approach since VMP is used to define all other essential quantities: SEP, electric field intensity, and magnetic field intensity. SEP is also important in some cases, such as grounding grid analysis based on the finite element technique [5]. In that analysis, once the SEP of the grounding system is determined, the current distribution through the conductors can be computed.…”

Section: Introductionmentioning

confidence: 99%

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Computation of Spectral-domain Green's Functions of the Infinitesimal Current Source in a Planar Multilayer Medium

Vujević¹,

Krolo²

2023

PIER B

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This paper presents a novel theoretical and numerical approach for an infinitesimal current source (ICS) located in a planar isotropic multilayer medium. Using the mixed-potential integral equation (MPIE) formulation for depicting the electromagnetic disturbance created by the ICS, a detailed definition of Green's functions of Lorenz potentials and fields is provided in this paper. The proposed Green's functions are valid for the considered multilayer isotropic medium, which can have arbitrary layer parameters. This paper also analyzes two commonly observed special cases of the multilayer medium -the multilayer soil including air and the multilayer lossless dielectric -and the proposed equations are modified to meet the requirements of the medium. Green's functions can be obtained from the systems of linear equations proposed in this study. In comparison to other approaches, the advantage of the proposed procedure is that the solutions of the equations are immediately obtained in any field layer of the multilayer medium. In addition, the proposed system of linear equations can be solved easily using well-known numerical computation methods. Furthermore, this paper offers an alternative way of obtaining Green's functions, which are closed-form expressions for the kernels of spectral-domain Green's functions.

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Section: The Adjustment Of Lorenz Potentialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%