Development and evaluation of a fast voltage calculation method for low-voltage distribution system

Shunsuke Kawano, Yasuhiro Hayashi, Nobuhiko Itaya, Tomihiro Takano, Tetsufumi Ono

    Research output: Contribution to journalArticle


    Since residential photovoltaic systems trend to increase in low-voltage distribution feeders, it is becoming more important to estimate voltage profile including not only high and middle but low-voltage distribution network to operate distribution systems. In case of using the conventional power flow calculation method based on iterative calculation, it will be taken much time to get voltage values all over low-voltage distribution feeders. This paper presents a new method to calculate voltage quickly keeping the accuracy sufficient for practical operation. In order to check the validity of the proposed method, numerical results are shown by comparing its computation accuracy and time with those of the conventional one.

    Original languageEnglish
    Pages (from-to)343-349
    Number of pages7
    JournalIEEJ Transactions on Power and Energy
    Issue number4
    Publication statusPublished - 2013



    • Low-voltage distribution system
    • Power flow calculation
    • Residential photovoltaic system

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Energy Engineering and Power Technology

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