Recent Submissions

  • Kayak Tracking using a Direct Lidar Model 

    Hagen, Inger Berge; Brekke, Edmund Førland (Chapter, 2021)
    This paper proposes a direct approach for extended object tracking (EOT) using light detection and ranging (lidar) measurements. The method does not use any clustering operations, but processes the individual laser beams ...
  • Geometric Change Detection in Digital Twins using 3D Machine Learning 

    Sundby, Tiril; Graham, Julia Maria; Rasheed, Adil; Tabib, Mandar; San, Omer (Peer reviewed; Journal article, 2021)
    Digital twins are meant to bridge the gap between real-world physical systems and virtual representations. Both stand-alone and descriptive digital twins incorporate 3D geometric models, which are the physical representations ...
  • Intraperitoneal insulin administration in pigs: Effect on circulating insulin and glucose levels 

    Dirnena-Fusini, Ilze; Åm, Marte Kierulf; Fougner, Anders Lyngvi; Carlsen, Sven Magnus; Christiansen, Sverre Christian (Peer reviewed; Journal article, 2021)
    Introduction The effect of intraperitoneal insulin infusion has limited evidence in the literature. Therefore, the aim of the study was to investigate the pharmacokinetics and pharmacodynamics of different intraperitoneal ...
  • Shore Charging for Plug-In Battery-Powered Ships: Power System Architecture, infrastructure, and Control 

    Karimi, Siamak; Zadeh, Mehdi; Suul, Jon Are Wold (Peer reviewed; Journal article, 2020)
    This article reviews the available systems for shore-to-ship high-power charging, including recent technologies, control methods, and related challenges. The battery charging path from shore to the onboard battery involves ...
  • Current flow processes at fullscale Atlantic salmon farm sites 

    Jónsdóttir, Kristbjörg Edda (Doctoral theses at NTNU;2021:133, Doctoral thesis, 2021)
    The aquaculture industry has grown exponentially the last 30 years. In Norway the Atlantic salmon is the dominant species and the rapid growth of the industry has led to both challenges and controversy. The issues faced ...
  • Modeling movement-induced errors in AC electromagnetic trackers 

    Tuffaha, Mutaz; Stavdahl, Øyvind; Stensdotter, Ann-Katrin (Peer reviewed; Journal article, 2020)
    Error analysis of electromagnetic motion tracking systems is of growing interest to many researchers. Under sensor movement, it is logical to presume that the error in position and orientation measurements will increase. ...
  • A comparison of hazard analysis methods capability for safety requirements generation 

    Kim, Hyungju; van der Meulen, Meine J. P.; Skofteland, Gunleiv; Lundteigen, Mary Ann (Peer reviewed; Journal article, 2021)
    A safety-critical system comprising several interacting and software-intensive systems must be carefully analyzed to detect whether new functional requirements are needed to ensure safety. This involves an analysis of the ...
  • Impact on Efficiency of Inductive Battery Charging System by Sub-Resonant Frequency Control during Large Variations in Coupling Conditions 

    Zhou, Jiayu; Guidi, Giuseppe; Suul, Jon Are Wold (Chapter, 2020)
    This paper presents a detailed analysis of power transfer efficiency for inductive battery charging systems designed for sub-resonant frequency control during large variations in coupling conditions. It is first demonstrated ...
  • SIOS’s Earth Observation (EO), Remote Sensing (RS), and operational activities in response to COVID-19 

    Jawak, Shridhar D.; Andersen, Bo N.; Pohjola, Veijo; Godøy, Øystein; Hübner, Christiane E.; Jennings, Inger; Ignatiuk, Dariusz; Holmen, Kim; Sivertsen, Agnar; Hann, Richard; Tømmervik, Hans; Kääb, Andreas; Błaszczyk, Małgorzata; Salzano, Roberto; Luks, Bartłomiej; Høgda, Kjell Arild; Storvold, Rune; Nilsen, Lennart; Salvatori, Rosamaria; Krishnan, Kottekkatu Padinchati; Chatterjee, Sourav; Lorentzen, Dag Arne; Erlandsson, Rasmus; Lauknes, Tom Rune; Malnes, Eirik; Karlsen, Stein Rune; Enomoto, Hiroyuki; Fjæraa, Ann Mari; Zhang, Jie; Marty, Sabine; Nygård, Knut Ove; Lihavainen, Heikki (Peer reviewed; Journal article, 2021)
    Svalbard Integrated Arctic Earth Observing System (SIOS) is an international partnership of research institutions studying the environment and climate in and around Svalbard. SIOS is developing an efficient observing system, ...
  • Stability Analysis of a Virtual Synchronous Machine-based HVDC Link by Gear's Method 

    Khodaparast Ghadikolaei, Jalal; Fosso, Olav B; Molinas Cabrera, Maria Marta; Suul, Jon Are Wold (Chapter, 2020)
    Declining equivalent inertia caused by the massive integration of converter-based technologies can increase the risk of stability problems in the future power system. Control of HVDC systems as Virtual Synchronous Machines ...
  • Controlled Direct Liquid Cooling of Data Servers 

    Lucchese, Riccardo; Varagnolo, Damiano; Johansson, Andreas (Journal article; Peer reviewed, 2020)
    We formulate a modeling and control framework aimed at direct liquid cooling of data servers. In our application scenario, the server's heat load is rejected into a liquid cooling circuit that extends to individual chips. ...
  • GANs enabled super-resolution reconstruction of wind field 

    Tran, Duy Tan; Robinson, Haakon; Rasheed, Adil; San, Omer; Tabib, Mandar; Kvamsdal, Trond (Peer reviewed; Journal article, 2020)
    Atmospheric flows are governed by a broad variety of spatio-temporal scales, thus making real-time numerical modeling of such turbulent flows in complex terrain at high resolution computationally unmanageable. In this ...
  • Repetitive control-based phase voltage modulation amendment for FOC-based five-phase PMSMs under single-phase open fault 

    Tian, Bing; Sun, Li; Molinas Cabrera, Maria Marta; An, Quntao (Peer reviewed; Journal article, 2020)
    This article investigates the most elementary phase voltage modulation (PVM) for a more generic five-phase permanent magnet synchronous motor drive under a single-phase open fault. Most works on this topic are intended for ...
  • Measurement of Impedance-Frequency Property of Traction Network Using Cascaded H-Bridge Converters: Device Design and On-Site Test 

    Wu, Mingli; Li, Jing; Liu, Qiujiang; Yang, Shaobing; Molinas Cabrera, Maria Marta (Peer reviewed; Journal article, 2020)
    To investigate the harmonic resonance in electric railways, determination of the traction network impedance using a utility instrument is an important and challenging task. This article presents a novel industrial test ...
  • PWM investigation of a Field-oriented controlled Five-Phase PMSM under two-phase open faults 

    Tian, Bing; Molinas Cabrera, Maria Marta; An, Quntao (Peer reviewed; Journal article, 2020)
    The decoupled model of Five-Phase Permanent Magnet Synchronous Motors (5Ph PMSMs) under a two-phase open circuit has been developed recently, yet the corresponding PWM has not been fully exploited. The Pulse Width Modulation ...
  • Real time optimization of systems with fast and slow dynamics using a lookahead strategy 

    Andersen, Joakim Rostrup; Silva, Thiago Lima; Imsland, Lars Struen; Pavlov, Alexey (Chapter, 2020)
    Systems with fast and slow dynamics give rise to objectives in different time scales which may not be aligned. The existing dynamic optimal control methods might become computationally infeasible due to the fine discretization ...
  • Model Based Early Kick/Loss Detection and Attenuation with Topside Sensing in MPD 

    Jinasena, Asanthi; Holta, Haavard H. F.; Jondahl, Morten Hansen; Welahettige, Prasanna Kumara Welahetti; Aamo, Ole Morten; Sharma, Roshan; Viumdal, Håkon; Lie, Bernt (Peer reviewed; Journal article, 2020)
    Early kick/loss detection is a crucial part of safe well control, and it plays a major role in the reduction of risk and non-productive time in drilling. In conventional drilling, topside sensing is used for early kick/loss ...
  • Oscillation analysis of low-voltage distribution systems with high penetration of photovoltaic generation 

    Bueno Lopez, Maximiliano; Sanabria-Villamizar, Mauricio; Molinas Cabrera, Maria Marta; Bernal-Alzate, Efrain (Peer reviewed; Journal article, 2020)
    The use of renewable power generation brings new challenges related to power quality issues. Furthermore, with the changing power system nature due to the presence of new components such as power electronics in large numbers ...
  • Frequency Fluctuations in Marine Microgrids: Origins and Identification Tools 

    Tarasiuk, Tomasz; Zunino, Yuri; Bueno Lopez, Maximiliano; Silvestro, Federico; Pilatis, Andrzej; Molinas Cabrera, Maria Marta (Peer reviewed; Journal article, 2020)
    Fluctuation of frequency IS arguably the most characteristic feature of marine microgrids. T his concerns both frequency drift during step load change and all quasi-periodic fluctuation due to the impact of various factors ...
  • Impedance and Noise of Passive and Active Dry EEG Electrodes: A Review 

    Habibzadeh Tonekabony Shad, Erwin; Molinas Cabrera, Maria Marta; Ytterdal, Trond (Peer reviewed; Journal article, 2020)
    Dry electrodes are a promising solution for prolonged EEG signal acquisition, whereas wet electrodes may lose their signal quality in the same situation and require skin preparation for set-up. Here, we review the impedance ...

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