Improved Real-Time Stability Assessment of Grid-Connected Converters Using MIMO-Identification Methods

Roni Luhtala, Tommi Reinikka, Tomi Roinila, Tuomas Messo, Jussi Sihvo

    Tutkimustuotos: KonferenssiartikkeliTieteellinenvertaisarvioitu

    3 Sitaatiot (Scopus)

    Abstrakti

    Several stability and power quality problems have been reported recently in power systems, which experience a high penetration of power electronics converters, such as renewable energy inverters. The problems are often caused by the interaction between the converter and the grid impedance. Stability monitoring tools have been presented to gain insight into the stability margin of the power system. Online methods are most favorable since the power system has many parameters that vary with time. However, the online methods that have been presented may produce inaccurate estimate of the stability margin due to several simplifications, such as using reduced-order impedance models. This paper introduces an improved dq-domain stability analysis that takes into account the time-varying grid impedance in real time and also the multivariable inverter output impedance, including the crosscouplings.
    AlkuperäiskieliEnglanti
    OtsikkoThe 10th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2018)
    AlaotsikkoSeptember 23 – 27, 2018, Portland, Oregon, USA
    KustantajaIEEE
    Sivut5322-5329
    Sivumäärä8
    ISBN (elektroninen)978-1-4799-7312-5
    DOI - pysyväislinkit
    TilaJulkaistu - 6 jouluk. 2018
    OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
    TapahtumaIEEE Energy Conversion Congress and Exposition - Portland, Yhdysvallat
    Kesto: 23 syysk. 201827 syysk. 2018

    Conference

    ConferenceIEEE Energy Conversion Congress and Exposition
    Maa/AlueYhdysvallat
    KaupunkiPortland
    Ajanjakso23/09/1827/09/18

    Julkaisufoorumi-taso

    • Jufo-taso 1

    Sormenjälki

    Sukella tutkimusaiheisiin 'Improved Real-Time Stability Assessment of Grid-Connected Converters Using MIMO-Identification Methods'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

    Siteeraa tätä