The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Calculation of Eddy Current Distribution in Conducting Bulk with Voltage Source

전압원이 인가된 도체 내에서의 와전류 분포 해석

  • Published : 2000.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

When current flows through a thick conductor such, most of the current flows along outside of the conductor, which is called skin effect. This paper represents a method calculating such a current distribution in the conductor region. The conductor region is divided into some pieces and each piece has its own unknown variable, i.e. current density. The governing equation which expresses Maxwell's equation is combined with the circuit equation with voltage source. The combined equation is solved to obtain current distribution in the conductor. This algorithm is applied to EMC(Electromagnetic Casting) to calculate current density with voltage source.

Keywords

References

  1. T. Nakada, N. Takahashi and K. Fujiwara, 'Efficient Solving Techniques of Matrix Equation for Finite Element Analysis of Eddy Currents,' IEEE Trans. On Mag., MAG-24, No. 1, pp. 170-173, January 1988 https://doi.org/10.1109/20.43883
  2. D. Shen, G. Meunier, J. L. Coulomb and J. C. Sabonnadiere, 'Solution of Magnetic Field and Electrical Circuits Combined Problems,' IEEE Trans. On Mag., MAG-21, No. 6, pp.2288-2291, 1985.
  3. K. Preis, I. Bardi, O.Brio and C.Magele, 'Different Finite Element Formulation of 3D Magnetic Fields,' IEEE Trans. On Mag., MAG-28, No. 2, pp.1056-1059, 1992. https://doi.org/10.1109/20.123863
  4. R. L. Ferrari and A. R. Pinchuk. 'Complimentry Variational Finite-Element Solution of Eddy Current Problems Using Field Variables,' IEEE Trans. On Mag., MAG-21, No. 6, pp.2242-2245, 1985.
  5. Kurt Preis, Istvan Bardi, Oszkar biro and Kurt R. Richter, 'Nonlinear Periodic Eddy Currents in Single and Multi-conductor Systems,' IEEE Trans. On Mag., MAG-32, No. 3, pp.780-783, 1996. https://doi.org/10.1109/20.497356
  6. Katsumi Yamazaki, '2D Induction Motor Analysis Coupled to Modified Rotor Cage Circuit Considering Skin Effect Estimated by Regional 3D analysis,' CEFC Conference, Tucson Arizona, 1996