• Condition monitoring of spar‐type floating wind turbine drivetrain using statistical fault diagnosis 

      Ghane, Mahdi; Nejad, Amir Rasekhi; Blanke, Mogens; Gao, Zhen; Moan, Torgeir (Journal article, 2018)
      Operation and maintenance costs are significant for large‐scale wind turbines and particularly so for offshore. A well‐organized operation and maintenance strategy is vital to ensure the reliability, availability, and ...
    • Response analysis and comparison of a spar-type floating offshore wind turbine and an onshore wind turbine under blade pitch controller faults 

      Etemaddar, Mahmoud; Blanke, Mogens; Gao, Zhen; Moan, Torgeir (Journal article; Peer reviewed, 2016)
      This paper analyses the effects of three pitch controller faults on the responses of an onshore wind turbine and a spar-type offshore floating wind turbine. These faults include: a stuck blade pitch actuator, a fixed value ...
    • Steady and transient inflow dynamics with actuator disk vortex theory 

      Pedersen, Morten Dinhoff (Journal article; Peer reviewed, 2018)
      The actuator disk is a well‐known and widely used theoretical tool in wind engineering. This work proposes a new theory based on an actuator surface, capable of treating time‐varying vectorial load distributions and yaw/pitch ...
    • The value of airborne wind energy to the electricity system 

      Malz, Elena C.; Walter, Viktor; Göransson, Lisa; Gros, Sebastien (Peer reviewed; Journal article, 2021)
      Airborne wind energy (AWE) is a new power generation technology that harvests wind energy at high altitudes using tethered wings. The potentially higher energy yield, combined with expected lower costs compared to traditional ...
    • Wind farm voltage dip measurements 

      Marvik, Jorun Irene; Tande, John Olav Giæver; Uhlen, Kjetil (Journal article; Peer reviewed, 2014)
      This paper is based on continuous measurements of voltages and currents from three wind farms for a period of 1 year, and the focus is on voltage dips. The purpose is to get an overview of the characteristics and rate of ...