A Probabilistic Estimation Method of Reactive Power Controlled by PCS using Measurement Data of Switchgears with Sensors

Akira Koide, Takao Tsuji, Tsutomu Oyama, Tadahiro Goda, Yasuhiro Kojima, Takao Shinji, Kenko Uchida, FrÉdÉric MagoulÈs

    Research output: Contribution to journalArticle

    Abstract

    It becomes an important issue to maintain voltage profile within the allowable range in distribution systems with a large number of distributed generators (DGs), such as Photovoltaic (PV). Although reactive power control by power conditioning system (PCS) is effective to mitigate the voltage increase, there is a possibility that active power curtailment is needed to provide enough amount of reactive power due to current limitation. Here, it is expected that the active power curtailment can be avoided if a cooperative voltage control between load ratio tap controller (LRT) and PCS is realized. To this end, system operators have to know the amount of reactive power controlled by PCS. Hence, in this paper, we developed a new state estimation method of the reactive power using the measurement data obtained by the switchgears with sensors. In addition, a probabilistic approach was applied because an accurate estimation is theoretically impossible only by using the limited number of measurement data. The proposed method was tested in a hierarchic distribution system model and its effectiveness was shown through simulations.

    Original languageEnglish
    Pages (from-to)3-18
    Number of pages16
    JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
    Volume200
    Issue number4
    DOIs
    Publication statusPublished - 2017 Sep 1

    Fingerprint

    Electric switchgear
    Reactive power
    Sensors
    Electric potential
    State estimation
    Power control
    Voltage control
    Controllers

    Keywords

    • distributed generator
    • distribution system
    • state estimation
    • voltage-reactive power control

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering

    Cite this

    A Probabilistic Estimation Method of Reactive Power Controlled by PCS using Measurement Data of Switchgears with Sensors. / Koide, Akira; Tsuji, Takao; Oyama, Tsutomu; Goda, Tadahiro; Kojima, Yasuhiro; Shinji, Takao; Uchida, Kenko; MagoulÈs, FrÉdÉric.

    In: Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi), Vol. 200, No. 4, 01.09.2017, p. 3-18.

    Research output: Contribution to journalArticle

    Koide, Akira ; Tsuji, Takao ; Oyama, Tsutomu ; Goda, Tadahiro ; Kojima, Yasuhiro ; Shinji, Takao ; Uchida, Kenko ; MagoulÈs, FrÉdÉric. / A Probabilistic Estimation Method of Reactive Power Controlled by PCS using Measurement Data of Switchgears with Sensors. In: Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 2017 ; Vol. 200, No. 4. pp. 3-18.
    @article{2e75048c5d4b4017a141d9e0155a41a8,
    title = "A Probabilistic Estimation Method of Reactive Power Controlled by PCS using Measurement Data of Switchgears with Sensors",
    abstract = "It becomes an important issue to maintain voltage profile within the allowable range in distribution systems with a large number of distributed generators (DGs), such as Photovoltaic (PV). Although reactive power control by power conditioning system (PCS) is effective to mitigate the voltage increase, there is a possibility that active power curtailment is needed to provide enough amount of reactive power due to current limitation. Here, it is expected that the active power curtailment can be avoided if a cooperative voltage control between load ratio tap controller (LRT) and PCS is realized. To this end, system operators have to know the amount of reactive power controlled by PCS. Hence, in this paper, we developed a new state estimation method of the reactive power using the measurement data obtained by the switchgears with sensors. In addition, a probabilistic approach was applied because an accurate estimation is theoretically impossible only by using the limited number of measurement data. The proposed method was tested in a hierarchic distribution system model and its effectiveness was shown through simulations.",
    keywords = "distributed generator, distribution system, state estimation, voltage-reactive power control",
    author = "Akira Koide and Takao Tsuji and Tsutomu Oyama and Tadahiro Goda and Yasuhiro Kojima and Takao Shinji and Kenko Uchida and Fr{\'E}d{\'E}ric Magoul{\`E}s",
    year = "2017",
    month = "9",
    day = "1",
    doi = "10.1002/eej.22985",
    language = "English",
    volume = "200",
    pages = "3--18",
    journal = "Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)",
    issn = "0424-7760",
    publisher = "John Wiley and Sons Inc.",
    number = "4",

    }

    TY - JOUR

    T1 - A Probabilistic Estimation Method of Reactive Power Controlled by PCS using Measurement Data of Switchgears with Sensors

    AU - Koide, Akira

    AU - Tsuji, Takao

    AU - Oyama, Tsutomu

    AU - Goda, Tadahiro

    AU - Kojima, Yasuhiro

    AU - Shinji, Takao

    AU - Uchida, Kenko

    AU - MagoulÈs, FrÉdÉric

    PY - 2017/9/1

    Y1 - 2017/9/1

    N2 - It becomes an important issue to maintain voltage profile within the allowable range in distribution systems with a large number of distributed generators (DGs), such as Photovoltaic (PV). Although reactive power control by power conditioning system (PCS) is effective to mitigate the voltage increase, there is a possibility that active power curtailment is needed to provide enough amount of reactive power due to current limitation. Here, it is expected that the active power curtailment can be avoided if a cooperative voltage control between load ratio tap controller (LRT) and PCS is realized. To this end, system operators have to know the amount of reactive power controlled by PCS. Hence, in this paper, we developed a new state estimation method of the reactive power using the measurement data obtained by the switchgears with sensors. In addition, a probabilistic approach was applied because an accurate estimation is theoretically impossible only by using the limited number of measurement data. The proposed method was tested in a hierarchic distribution system model and its effectiveness was shown through simulations.

    AB - It becomes an important issue to maintain voltage profile within the allowable range in distribution systems with a large number of distributed generators (DGs), such as Photovoltaic (PV). Although reactive power control by power conditioning system (PCS) is effective to mitigate the voltage increase, there is a possibility that active power curtailment is needed to provide enough amount of reactive power due to current limitation. Here, it is expected that the active power curtailment can be avoided if a cooperative voltage control between load ratio tap controller (LRT) and PCS is realized. To this end, system operators have to know the amount of reactive power controlled by PCS. Hence, in this paper, we developed a new state estimation method of the reactive power using the measurement data obtained by the switchgears with sensors. In addition, a probabilistic approach was applied because an accurate estimation is theoretically impossible only by using the limited number of measurement data. The proposed method was tested in a hierarchic distribution system model and its effectiveness was shown through simulations.

    KW - distributed generator

    KW - distribution system

    KW - state estimation

    KW - voltage-reactive power control

    UR - http://www.scopus.com/inward/record.url?scp=85019262486&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=85019262486&partnerID=8YFLogxK

    U2 - 10.1002/eej.22985

    DO - 10.1002/eej.22985

    M3 - Article

    AN - SCOPUS:85019262486

    VL - 200

    SP - 3

    EP - 18

    JO - Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)

    JF - Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)

    SN - 0424-7760

    IS - 4

    ER -