• Anti-Slug Control Experiments Using Nonlinear Observers 

      Jahanshahi, Esmaeil; Skogestad, Sigurd; Grøtli, Esten Ingar (Journal article; Peer reviewed, 2013)
      Abstract: To prevent slug-flow on offshore oil production units, controlling a subsea pressure is the recommended solution. However, the subsea pressure is not often available as a measurement. The top-side pressure is ...
    • L1 Adaptive Anti-Slug Control 

      Ohrem, Sveinung Johan; Holden, Christian; Jahanshahi, Esmaeil; Skogestad, Sigurd (Journal article; Peer reviewed, 2017)
      In many multiphase pipeline-riser systems, anti-slug control is necessary to ensure steady and optimal operation. In this paper, we propose using an ℒ1 adaptive controller as an augmentation to standard PI control to ...