Blar i Institutt for teknisk kybernetikk på tidsskrift "Proceedings of the IEEE Conference on Control Applications"

Viser treff 1-6 av 6

    • Adaptive approximation-based estimation of downhole pressure in managed pressure drilling 

      Imsland, Lars Struen; Kaasa, Glenn-Ole (Journal article; Peer reviewed, 2012)
      Low-complexity multi-model algorithms for adaptive bottomhole pressure estimation in drilling is derived, and theoretical and practical conditions for convergence (persistency of excitation) discussed, assuming a) topside ...

    • An Augmented Lagrangian Method for Optimal Control of Continuous Time DAE Systems 

      Aguiar, Marco Aurelio Schmitz de; Camponogara, Eduardo; Foss, Bjarne Anton (Journal article, 2016)
      This works presents an algorithm for solving optimal control problems (OCP) of differential algebraic equations (DAE) based on the augmented Lagrangian method. The algorithm relaxes the algebraic equations and solves a ...

    • Coordinated Control of Multiple HVDC links using backstepping 

      Ersdal, Anne Mai; Imsland, Lars Struen; Uhlen, Kjetil (Journal article, 2012)
      This article regards a power system containing multiple High Voltage Direct Current (HVDC) links. The topic is to exploit the HVDC lines’ ability to control the power supplied by them to increase the stability of the system. ...

    • Estimation of inner-domain temperatures for a freezing process 

      Backi, Christoph Josef; Bendtsen, Jan Dimon; Leth, John; Gravdahl, Jan Tommy (Journal article; Peer reviewed, 2014)
      In this paper a state observer for a distributed parameter system (DPS) with nonconstant parameter functions is presented. The DPS describes the freezing of foodstuff in vertical plate freezers and is a nonlinear heat ...

    • Modeling and Control of a Marine Diesel Engine driving a Synchronous machine and a Propeller 

      Tuffaha, Mutaz; Gravdahl, Jan Tommy (Journal article; Peer reviewed, 2014)
      In some designs of power systems for marine vessels, large-size or medium-size Diesel engine(s) is(are) used to drive one synchronous machine to generate electricity, and the main propeller, simultaneously, through a gear ...

    • Uniform Practical Asymptotic Stability for Position Control of Underwater Snake Robots 

      Orucevic, Amer; Gravdahl, Jan Tommy; Pettersen, Kristin Ytterstad; Chaillet, Antoine (Journal article, 2022)
      In this paper, Lyapunov theory for uniform practical asymptotic stability (UPAS) is presented and utilized to solve the problem of position control of a planar underwater snake robot (USR). First, a precise definition of ...