A LRT Control Method Using Sensor Information in Distribution Systems with a Large Amount of PVs and EVs

Yotaro Nose, Takao Tsuji, Tsutomu Oyama, Takaharu Ito, Katsuya Abe, Masahiro Minami, Kazunari Ishibashi

    Abstract

    It is of prime importance to maintain voltage profile within the proper range in distribution systems with a large amount of photovoltaics and electric vehicles (EVs). In particular, there is a possibility that line drop compensation (LDC) logic, which is utilized for the control of load ratio tap transformer (LRT) does not work properly when reverse power flow is included partially. Hence, in this paper, we have developed a new LRT control method based on the sensor information supposing that some section switchgears with sensors are introduced in the future distribution systems. Specifically, the extreme value of voltage profile is estimated by convergence calculation in the section between the section switchgear with sensor and LRT. Moreover, the voltage at the end node can be estimated by LDC method using sensor information of section switchgear. The proposed method was tested using a distribution system model and its effectiveness was shown.

    Original languageEnglish
    Pages (from-to)51-62
    Number of pages12
    JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
    Volume198
    Issue number4
    DOIs
    StatePublished - 2017 Mar 1

    Fingerprint

    Sensors
    Electric switchgear
    Electric vehicles

    Keywords

    • distribution system
    • LDC logic
    • load ratio control transformer
    • section switchgear with sensor
    • voltage profile

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering

    Cite this

    A LRT Control Method Using Sensor Information in Distribution Systems with a Large Amount of PVs and EVs. / Nose, Yotaro; Tsuji, Takao; Oyama, Tsutomu; Ito, Takaharu; Abe, Katsuya; Minami, Masahiro; Ishibashi, Kazunari.

    In: Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi), Vol. 198, No. 4, 01.03.2017, p. 51-62.

    Research output: Contribution to journalArticle

    Nose, Yotaro; Tsuji, Takao; Oyama, Tsutomu; Ito, Takaharu; Abe, Katsuya; Minami, Masahiro; Ishibashi, Kazunari / A LRT Control Method Using Sensor Information in Distribution Systems with a Large Amount of PVs and EVs.

    In: Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi), Vol. 198, No. 4, 01.03.2017, p. 51-62.

    Research output: Contribution to journalArticle

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    AU - Abe,Katsuya

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    AB - It is of prime importance to maintain voltage profile within the proper range in distribution systems with a large amount of photovoltaics and electric vehicles (EVs). In particular, there is a possibility that line drop compensation (LDC) logic, which is utilized for the control of load ratio tap transformer (LRT) does not work properly when reverse power flow is included partially. Hence, in this paper, we have developed a new LRT control method based on the sensor information supposing that some section switchgears with sensors are introduced in the future distribution systems. Specifically, the extreme value of voltage profile is estimated by convergence calculation in the section between the section switchgear with sensor and LRT. Moreover, the voltage at the end node can be estimated by LDC method using sensor information of section switchgear. The proposed method was tested using a distribution system model and its effectiveness was shown.

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