Computation of Electric Fields Inside Large Substations

Calculation of electric field based on integral equations approach and suited to solving large-scale problems is presented. Integral equations are solved by appliance of BEM and Galerkin method. Unknown distribution of the surface charge density is approximated by bicubic splines, which ensure smoot...

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Veröffentlicht in:IEEE transactions on power delivery 2009-10, Vol.24 (4), p.1898-1902
Hauptverfasser: Trkulja, B., Stih, Z.
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Stih, Z.
description Calculation of electric field based on integral equations approach and suited to solving large-scale problems is presented. Integral equations are solved by appliance of BEM and Galerkin method. Unknown distribution of the surface charge density is approximated by bicubic splines, which ensure smooth approximation of sources. Accurate calculation of electric fields requires detailed modeling of power system equipment inside substations. This results in large models, which are solved by parallel computing. Numerical results are compared to measured fields inside a 400 kV substation. Comparison shows good agreement, thus approving applicability of the proposed approach in analysis of exposure to electromagnetic fields and electromagnetic compatibility.
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source IEEE Electronic Library (IEL)
subjects Applied sciences
Approximation
Boundary-element methods (BEMs)
Computation
Electric fields
Electric power generation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electromagnetic measurements
Exact sciences and technology
Galerkin method
Galerkin methods
Home appliances
Integral equations
Large-scale systems
Mathematical analysis
Mathematical models
Miscellaneous
Moment methods
Parallel processing
Power electronics, power supplies
Power networks and lines
Power system analysis computing
Power system measurements
Power system modeling
Substations
title Computation of Electric Fields Inside Large Substations
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