Review of Lightning Electromagnetic Field and Surge Computations using the Constrained Interpolation Profile Method

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  • Tanaka Yohei
    Graduate School of Science and Engineering Power System Analysis Laboratory, Doshisha University
  • Baba Yoshihiro
    Graduate School of Science and Engineering Power System Analysis Laboratory, Doshisha University

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  • CIP法による雷電磁界・サージ解析
  • CIPホウ ニ ヨル ライデン ジカイ ・ サージ カイセキ

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Abstract

The constrained interpolation profile (CIP) method, which is one sort of the finite-difference methods, has been recently applied to transient electromagnetic field simulations. Differently from the finite-difference time-domain (FDTD) method, the CIP method considers not only electric- and magnetic-field values at grid points but also their spatial derivative values there. In principle, therefore, it could suppress numerical dispersion and instability even when a relatively coarse grid is used. In this technical note, fundamentals of the CIP method and its formulations for computing electromagnetic fields in the 3D Cartesian coordinate system and in the 2D cylindrical coordinate system are briefly explained. Representative applications are also shown.

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