Blar i Institutt for kjemisk prosessteknologi på tidsskrift "Elsevier IFAC Publications / IFAC Proceedings series"

Viser treff 1-2 av 2

    • Nonlinear model-based control of two-phase flow in risers by feedback linearization 

      Jahanshahi, Esmaeil; Skogestad, Sigurd; Grøtli, Esten Ingar (Journal article, 2013)
      Active control of the production choke valve is the recommended solution to prevent severe slugging flow conditions at offshore oilfields. The slugging flow constitutes an unstable and highly nonlinear system; the gain of ...

    • On-Line PI Controller tuning Using Closed-Loop Setpoint Response 

      Shamsuzzoha, Mohammad; Skogestad, Sigurd; Halvorsen, Ivar J. (Journal article; Peer reviewed, 2010)
      The proposed method is similar to the Ziegler-Nichols (1942) tuning method, but it is faster to use and does not require the system to approach instability with sustained oscillations. The method requires one closed-loop ...