Global initialization technique in waveform relaxation method for transient stability analysis of a Japanese power system

Takao Tsuji, Takanori Sakamoto, Tsutomu Oyama, Frederic Magoules, Kenko Uchida

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The transient stability analysis of power systems can be described by differential and algebraic equations, and due to the increased speed with parallel computing techniques, use of the waveform relaxation method to solve these equations has attracted much attention. In order to enhance the calculation speed of the waveform relaxation method, it is of prime importance to reduce the required number of iterations for each time window. To this end, an initialization and preconditioning techniques have been proposed to improve convergence of the iterative procedure. In this paper, in order to enhance convergence, we developed a new global initialization technique that consists of linear analysis and a preconditioning technique. Specifically, global initialization is the result of the repeated application of conventional initialization and preconditioning techniques before each of the nonlinear iterative procedures, and then using linear analysis to determine the interaction between the CPUs. By calculating the initial waveforms more accurately, it is expected that additional speedup can be achieved by reducing the required number of iterations necessary for convergence of the nonlinear analysis.

    Original languageEnglish
    Title of host publicationIEEE PES Innovative Smart Grid Technologies Conference Europe
    PublisherIEEE Computer Society
    Volume2015-January
    EditionJanuary
    DOIs
    Publication statusPublished - 2015 Jan 30
    Event2014 IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe 2014 - Istanbul, Turkey
    Duration: 2014 Oct 122014 Oct 15

    Other

    Other2014 IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe 2014
    CountryTurkey
    CityIstanbul
    Period14/10/1214/10/15

    Keywords

    • parallel computing
    • power system
    • transient stability
    • waveform relaxation method

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Information Systems

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  • Cite this

    Tsuji, T., Sakamoto, T., Oyama, T., Magoules, F., & Uchida, K. (2015). Global initialization technique in waveform relaxation method for transient stability analysis of a Japanese power system. In IEEE PES Innovative Smart Grid Technologies Conference Europe (January ed., Vol. 2015-January). [7028947] IEEE Computer Society. https://doi.org/10.1109/ISGTEurope.2014.7028947