Blar i NTNU Open på forfatter "Spjøtvold, Jørgen"
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Anti-surge control: Control theoretic analysis of existing anti-surge control strategies
Kvangardsnes, Terje (Master thesis, 2009)This report on compressor anti-surge control closes some of the gaps related to the significant properties of control strategies. Anti-surge control is an important issue in operation of e.g. oil and gas processing plants. ... -
Modelling of variable speed centrifugal compressors for anti-surge control
Aaslid, Per (Master thesis, 2009)A mathematical model for simulation of gas compressor systems is developed. The model is designed for anti-surge control validation, and models a continuous flow gas compressor. The model also includes a cooler for gas ... -
Parametric Programming in Control Theory
Spjøtvold, Jørgen (Doktoravhandlinger ved NTNU, 1503-8181; 2008:94, Doctoral thesis, 2008)The main contributions in this thesis are advances in parametric programming. The thesis is divided into three parts; theoretical advances, application areas and constrained control allocation. The first part deals with ... -
Thrust allocation in semi-submersible rig using model predictive control
Johannessen, Irene (Master thesis, 2007)A thrust allocation system is used to determine how the desired forces, computed by a high level control sytem, can be distributed among the thrusters. The main goal of the thrust allocation is to obtain the desired force, ...