Artikler, rapporter og annet (elektroteknologi): Recent submissions

Now showing items 121-132 of 132

    • Thyristor based short circuit current injection in isolated grids 

      Hoff, Bjarte; Sharma, Pawan; Østrem, Trond (Peer reviewed; Bokkapittel; Chapter, 2017-02-16)
      This paper proposes a thyristor based short circuit current injector for providing short circuit current in isolated and weak grids, where sufficient fault current to trigger circuit breakers may not be available. This will allow the use of conventional miniature circuit breakers, which requires high fault current for instantaneous tripping. The method has been validated through experiments.

    • Quadrotor attitude estimation using adaptive fading multiplicative EKF 

      Johansen, Tor-Aleksander; Kristiansen, Raymond (Konferansebidrag; Conference object, 2017-07-03)
      This paper presents the implementation of an adaptive fading multiplicative extended Kalman filter (AFMEKF), applied to the problem of attitude estimation in the context of quadrotors. The extended Kalman filter is adapted for use with quaternions and made adaptive to account for inaccurate measurement information. Simulations have been conducted in order to validate the filter performance.

    • Smarte nett - Framtidas fleksible energisystem 

      Hoff, Bjarte (Conference object; Konferansebidrag, 2016)

    • Smarte nett - Framtidas fleksible energisystem 

      Hoff, Bjarte (Konferansebidrag; Conference object, 2016-03-16)

    • Smarte løsninger for integrering av fornybar energi 

      Hoff, Bjarte (Konferansebidrag; Conference object, 2017)

    • Smart grid solutions for integration of renewable energy in remote communities 

      Hoff, Bjarte (Conference object; Konferansebidrag, 2017)

    • Advanced Model Predictive Control Algorithm for Inverters as a Low-cost Solution in ZynQ 

      Hoff, Bjarte (Conference object; Konferansebidrag, 2016)

    • Experimental study of relative permittivity of atmospheric ice 

      Bhattu, Shravan K; Mughal, Umair Najeeb; Virk, Muhammad Shakeel (Journal article; Tidsskriftartikkel; Peer reviewed, 2013-01-01)
      Atmospheric icing on onshore and offshore structures is problematic, if we don’t detect and remove it. Despite of various ice detection techniques, capacitor based ice sensing technique is interesting one, as it is based on dielectric properties of material. This technique of measuring icing event is simple and cost- effective. Based on the dielectric concept, an experi mental ...

    • Subsumption architecture applied to flight control using composite rotations 

      Oland, Espen; Andersen, Tom Stian; Kristiansen, Raymond (Peer reviewed; Tidsskriftartikkel; Journal article, 2016-03-19)
      In this paper the subsumption theory is applied to flight control through composite rotations where multiple tasks can be defined as simple rotations. The tasks can then be arranged as a hierarchy, where the primary task is always fully pursued, and conflicting lower level tasks are removed by the primary rotation. The concept is applied to a group of uavs that move through an urban terrain while ...

    • A Decoupled Approach for Flight Control 

      Oland, Espen; Kristiansen, Raymond (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      A decoupling method for flight control is presented that greatly simplifies the controller design. By approximating the higher order derivatives of the angle of attack and sideslip, it enables a rotation controller and a speed controller to be derived independently of each other, and thus gives access to a vast number of controller solutions derived for general classes of rotational and translational ...

    • Ubemannede flaksende mikrofly 

      Oland, Espen (Journal article; Tidsskriftartikkel, 2013)

    • Cascade-Based Controlled Attitude Synchronization and Tracking of Spacecraft in Leader-Follower Formation 

      Schlanbusch, Rune; Nicklasson, Per Johan; Loria, Antonio (Journal article; Peer reviewed; Tidsskriftartikkel, 2011)