Blar i SINTEF Open på forfatter "Göthner, Fredrik T. B. W."

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    • Challenges of SiC MOSFET Power Cycling Methodology 

      Göthner, Fredrik T. B. W.; Spro, Ole Christian; Hernes, Magnar; Peftitsis, Dimosthenis (Chapter; Peer reviewed, 2018)
      This paper investigates the power cycling methodology for reliability testing of SiC metal-oxide-semiconductor field-effect transistors (MOSFETs). Dedicated test benches were designed and built to study this issue. The ...

    • Effect of Including Transient Virtual Impedance in Droop-Controlled Microgrids 

      Göthner, Fredrik T. B. W.; Midtgård, Ole-Morten; Torres Olguin, Raymundo E.; D'Arco, Salvatore (Chapter; Peer reviewed, 2018)
      Droop control has shown promising results for decentralized power sharing in microgrids. However, the basic scheme can suffer from unequal reactive power sharing power due to differing line impedances between converters ...

    • A Robust Circuit and Controller Parameters Identification Method of Grid-Connected Voltage Source Converters Using Vector Fitting Algorithm 

      Zhou, Weihua; Torres Olguin, Raymundo E.; Göthner, Fredrik T. B. W.; Beerten, Jef; Zadeh, Mehdi; Wang, Yanbo; Chen, Zhe (Peer reviewed; Journal article, 2021)
      This article presents a vector fitting (VF) algorithmbased robust circuit and controller parameters identification method for grid-connected voltage source converters (VSCs). The dq-domain impedance frequency responses ...

    • Virtual Impedance Design for Power Quality and Harmonic Sharing Improvement in Microgrids 

      Göthner, Fredrik T. B. W.; Midtgård, Ole-Morten; Torres Olguin, Raymundo E.; Roldan-Pérez, Javier (Chapter; Peer reviewed, 2019)
      One of the main challenges of decentrally operated islanded microgrids has been proper harmonic sharing for parallel connected inverters. This is largely affected by differences in the feeder impedances of the inverters. ...