Transformer capacitance matrix computation using 3D boundary element method and adaptive cross approximation

Drandić, Ana; Trkulja, Bojan

doi:10.1002/jnm.2669

Cited by 5 publications

(2 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This section will provide a brief description of the ACA algorithm used to improve the BEM solver for capacitance matrix calculation. The implementation and efficiency of the ACA algorithm for different problems can be found in [25][26][27][28][29][30][31].…”

Section: Adaptive Cross-approximationmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of Methodology for Lightning Impulse Voltage Distribution over High-Voltage Windings of Inductive Voltage Transformers

et al. 2021

Self Cite

View full text Add to dashboard Cite

Knowledge of lightning impulse (LI) voltage distribution over transformer windings during the design stage of the transformer is very important. Specific design differences in inductive voltage transformers make the transient analysis approach different to the approach to the power transformers. In this paper, a methodology for acquiring lightning impulse voltage distribution over high-voltage (HV) winding of inductive voltage transformers is presented and evaluated. Resistance, inductance, and capacitance matrices are calculated using the integral and boundary element methods (BEM) approach. Additionally, in order to improve the capacitance matrix solver, adaptive cross approximation (ACA) is applied. These parameters are then used to solve the equivalent circuit model in time domain. In order to evaluate the methodology, an experimental and numerical investigation of the layer discretisation, iron core influence, and accuracy of the proposed methodology is performed. The comparison of numerical results with measurements confirms the validity of the methodology.

show abstract

Section: Adaptive Cross-approximationmentioning

confidence: 99%

“…The stopping criterion in Equation ( 20) allows for the adaptive determination of approximated matrix rank. The main steps of the ACA algorithm are [30]:…”

Section: Adaptive Cross-approximationmentioning

confidence: 99%

Evaluation of Methodology for Lightning Impulse Voltage Distribution over High-Voltage Windings of Inductive Voltage Transformers

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

Special Issue: The 11th International Symposium on Electric and Magnetic Fields (EMF 2018)

Gersem

Kurz

Schöps

et al. 2020

Int J Numerical Modelling

View full text Add to dashboard Cite

On behalf of the Editorial Board, we are pleased to present a selection of papers related to the 11th International Symposium on Electric and Magnetic Fields (EMF 2018) held in Darmstadt, Germany, on 10-12 April, 2018.The EMF Symposium series, whose first edition was held in Liège, Belgium, in 1992, aims at building a bridge between recent research advances in mathematical and numerical modelling of electromagnetic fields and the growing number of industrial problems requiring such techniques. The 11th edition was organized by the Institute for Accelerator Science and Electromagnetic Fields and the Centre for Computational Engineering of the Technische Universität Darmstadt, and attracted 95 participants from 19 countries.Among the 84 presentations in the symposium program, 31 manuscripts were submitted for peer review. Fourteen papers were selected for publication in this special issue of the International Journal of Numerical Modelling: Electronic Networks, Devices and Fields. The high scientific and technical quality of the Symposium is well reflected in the quality of the manuscripts contained in this special issue.Four broad topics were covered during the 11th edition of the symposium.The first major topic considers the mathematical modelling of electromagnetic problems in view of their eventual numerical solution on computers, with contributions on the coupling of finite element and multipole methods, 1 boundary element methods, 2 inversion methods 3 and electromagnetic transformation laws. 4 The second major topic treats the numerical modelling of the electromagnetic behaviour of electric and magnetic materials, with contributions on the modelling of magnetoelectric composites 5 and magnetic hysteresis. 6,7 The third major topic concerns homogenization and reduced order models, with contributions to the time-domain homogenization of windings, 8 extraction of capacitance matrices 9 and lumped element modelling. 10 The fourth major topic concerns application-specific numerical techniques, with contributions to the modelling of synchronous reluctance machines, 11 graded surge arresters, 12 high voltage power cables 13 and DC-AC power converters. 14 We express our gratitude to all the members of the EMF scientific committee-P.

show abstract

Accurate Capacitance Matrices for Multiconductor Transmission Lines

Maksimov

Kuksenko

2022

IEEE Trans. Electromagn. Compat.

View full text Add to dashboard Cite

Transformer capacitance matrix computation using 3D boundary element method and adaptive cross approximation

Cited by 5 publications

References 16 publications

Evaluation of Methodology for Lightning Impulse Voltage Distribution over High-Voltage Windings of Inductive Voltage Transformers

Evaluation of Methodology for Lightning Impulse Voltage Distribution over High-Voltage Windings of Inductive Voltage Transformers

Special Issue: The 11th International Symposium on Electric and Magnetic Fields (EMF 2018)

Accurate Capacitance Matrices for Multiconductor Transmission Lines

Contact Info

Product

Resources

About