Blar i Institutt for teknisk kybernetikk på forfatter "Imsland, Lars"
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A spatial branch-and-bound method for ReLU network-constrained problems
Masdal, Even (Master thesis, 2020)Motivert av evnen kunstige nevrale nettverk har til data-dreven black-box modellering og bruken av spatial branch-and-bound (sBB) algoritmer til å løse ulineære optimaliseringsproblemer presenterer denne opgaven en metode ... -
Advanced Maintainence Planning and Scheduling for Engineering Asset Fleets: A Compressor Case Study
Spüntrup, Frederik Schulze (Doctoral theses at NTNU;2019:232, Doctoral thesis, 2019) -
Area Based Frequency Control in the Nordic Power System
Sandvik, Tarje Moe (Master thesis, 2016)Automatic frequency restoration reserves (FRR-A) are used for restoring the electric frequency when disturbances in the power network occur. Currently the whole Nordic power system's secondary frequency control is based ... -
Bruk av MPC for MPD
Møgster, Johannes (Master thesis, 2013)Nedihols trykkregulering er den avgjerande faktoren når det kjem til tryggleik under søk og utvinning av hydrokarbonar. Viss trykket blir for høgt eller for lågt, kan det resultere i at miljøfarleg borevæske blir sølt eller ... -
Building Ice Maps Using Mobile Aerial Sensors and Grid-based Estimation
Bruteig, Cathrine (Master thesis, 2015)Operations in the Arctic seas are becoming more common as the area contains large amounts of oil and gas. For these operations, control and detection of ice are necessary to avoid interference with the production. The focus ... -
Camera-Based Integrated Indoor Positioning
Vintervold, Ylva Stokke (Master thesis, 2013)This thesis is motivated by the use of unmanned aerial vehicles for obtaining measurements of the scene in a system for estimation of ice properties. Such systems are needed to ensure safety when conducting marine operations ... -
Cautious MPC-based control with Machine Learning
Langåker, Helge-Andre (Master thesis, 2018)Using Gaussian processes as a nonparametric regression model together with model predictive control has the recent years showed promising results by utilizing the expected uncertainty that follows the GP. By utilizing the ... -
Compact Subsea Separation Unit: - Nonlinear Model Predictive Control and Nonlinear Observers
Norgren, Petter (Master thesis, 2011)In search of increased wealth and public prosperity, the oil industry have met new challenges in their quest for black gold. These challenges have driven Statoil's expertise to develop a compact subsea separation unit. The ... -
Condition Monitoring of Hydroelectric Power Plants
Åsnes, Asgeir Øen (Master thesis, 2018)Much research can be found on condition monitoring for many industries. There are, however, very little research on the use of condition monitoring in hydroelectric power plants. A literature search investigates this field, ... -
Contributions to optimizing control – Inspired by challenges in oil and gas production
Andersen, Joakim Rostrup (Doctoral theses at NTNU;2023:127, Doctoral thesis, 2023)This dissertation treats optimization and control with emphasis on oil and gas applications, and consists of an introduction followed by five main contributions. In the first contribution, we focus on allocating a limited ... -
Control Structure and Tuning Method Design for suppressing Disturbances in a multi-phase Separator
Wilhelmsen, Matias (Master thesis, 2013)In this project report the control structure for a three phase separator for a oil production unit is examined. The purpose is to analyse the control structure, and make the suggestion for how a control structure based on ... -
Control with discrete output: Step choke control
Dehli, Martin Lamo (Master thesis, 2013)The need and requirement for obtaining good and reliable models of the oil and gas reservoirs are increasingly important. A trustworthy and high-quality model will facilitate the optimisation of the productivity, which ... -
Data-driven MPC
Brodd, Herman (Master thesis, 2021)Hovedmålet med denne oppgaven er å implementere en data-drevet metode i Equinors interne programvare for MPC, SEPTIC. Data-drevet kontroll består av direkte bruk av online data fra en prosess underlagt regulering, for å ... -
Degradation in Barch Reactors – Data-driven Modeling and Optimal Operation
Wu, Ouyang (Doctoral theses at NTNU;2020:92, Doctoral thesis, 2020) -
Design and Implementation of Instrumentation and Control System for an Autonomous Miniature Drilling Rig for Directional Drilling
Nåmdal, Mads Bertheussen (Master thesis, 2019)Denne avhandlingen beskriver arbeidet med design og implementering av instrumentering og kontrollsystem for NTNU Drillbotics' bidrag til Drillbotics-konkurransen 2019. Omfanget av denne avhandlingen innebærer design, bygging ... -
Developing a hybrid, gray-box model of a production wellbore
Fredriksen, Morten (Master thesis, 2021)I produksjonssystemer for hydrokarboner er det en betydelig fordel å kunne måle multifaseflyten ut av brønnbanen. Tradisjonelt sett har man brukt brønntesting for å finne denne masseflyten, og i senere tid også fastmonterte ... -
Drilling mud property estimator
Ljones, Tone (Master thesis, 2013)In 1969 the first petroleum discovery was made on the Norwegian continental shelf. This founding marks the beginning of what has become the most important contribution to the Norwegian economy. Advanced research within the ... -
Dynamic Optimization of a District Heating System using Model Predictive Control
Persaud Møller, Sindre (Master thesis, 2019)Å styre et fjernvarmenettverk kan være en utfordrende oppgave. Leverandøren må kontinuerlig håndtere varierende forbruk i et stort og komplekst nettverk, hvor varmetapet kan være betydelig. For å kunne produsere optimalt, ... -
Dynamic positioning operations performed in ice
Skodje, Johan Ketil (Master thesis, 2011)A two-dimensional broken ice model is implemented, including a collision detection and resolving system for ice interactions, using conservation of momentum. A simulation of the model has been done to evaluate the dynamics ... -
Dynamic Real-Time Optimisation of an Amine-Based Post-Combustion CO2 Capture Facility using Single-Level Nonlinear Model Predictive Control
Hotvedt, Mathilde (Master thesis, 2018)A complete model of a CO2 capture facility has been optimised with the aid of Dynamic Real-Time Optimisation (DRTO) utilising single-level, Nonlinear Model Predictive Control to merge regulatory and economic objectives. ...