Improvement of convergence characteristic in nonlinear transient eddy-current analyses using the error correction of time integration based on the time-periodic FEM and the EEC method

Yasuhito Takahashi, Tadashi Tokumasu, Masafumi Fujita, Shinji Wakao, Takeshi Iwashita, Masanori Kanazawa

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    This paper proposes novel techniques for the improvement of the convergence characteristic of step-by-step time integrations in nonlinear transient eddy-current analyses. The proposed methods, which are based on the time-periodic finite-element method and the explicit error correction method, can extract poorly-converged error components corresponding to large time constants of an analyzed system. The correction of the extracted error components accelerates the convergence of transient calculation efficiently. Furthermore, we extend the performance of the proposed methods in nonlinear problems. Some numerical results that verify the effectiveness of the proposed methods are also presented.

    Original languageEnglish
    JournalIEEJ Transactions on Power and Energy
    Volume129
    Issue number6
    Publication statusPublished - 2009

    Fingerprint

    Error correction
    Eddy currents
    Finite element method
    European Union

    Keywords

    • Eddy current
    • Explicit error correction method
    • Nonlinear analysis
    • Time integration method
    • Time-periodic finite-element method

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Energy Engineering and Power Technology

    Cite this

    Improvement of convergence characteristic in nonlinear transient eddy-current analyses using the error correction of time integration based on the time-periodic FEM and the EEC method. / Takahashi, Yasuhito; Tokumasu, Tadashi; Fujita, Masafumi; Wakao, Shinji; Iwashita, Takeshi; Kanazawa, Masanori.

    In: IEEJ Transactions on Power and Energy, Vol. 129, No. 6, 2009.

    Research output: Contribution to journalArticle

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    AU - Tokumasu, Tadashi

    AU - Fujita, Masafumi

    AU - Wakao, Shinji

    AU - Iwashita, Takeshi

    AU - Kanazawa, Masanori

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    KW - Time integration method

    KW - Time-periodic finite-element method

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