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Distributed control architecture for real-time model predictive control for system-level harmonic mitigation in power systems
(Journal article; Peer reviewed, 2019)It can be challenging to design and implement Model Predictive Control (MPC) schemes in systems with fast dynamics. As MPCs often introduce high computational loads, it can be hard to assure real-time properties required ... -
Distributed learning for wind farm optimization with Gaussian processes
(Journal article; Peer reviewed, 2020) -
Distributed Model Predictive Control of Interconnected Nonlinear Systems by Dynamic Dual Decomposition
(Chapter, 2014)A suboptimal approach to distributed Nonlinear Model Predictive Control (NMPC) for systems consisting of nonlinear subsystems with nonlinearly coupled dynamics subject to both state and input constraints is proposed. The ... -
Distributed MPC for Formation Path-Following of Multi-Vehicle Systems
(Peer reviewed; Journal article, 2022)The paper considers the problem of formation path-following of multiple vehicles and proposes a solution based on combining distributed model predictive control with parametrizations of the trajectories of the vehicles ... -
Distributed MPC for Peak Power Reduction in Smart Homes
(Master thesis, 2022)I de kommende årene anslås elektrisitetsetterspørselen og andelen ikke-kontrollerbar kraftproduksjon å øke. Forbedret forbrukerfleksibilitet er nødvendig for å imøtekomme økt produksjonsvolatilitet. I Norge i 2022 skal et ... -
Distributed Nonlinear Model Predictive Control by Sequential Linearization and Accelerated Gradient Method
(Journal article; Peer reviewed, 2016)A suboptimal approach to distributed NMPC for nonlinear interconnected systems subject to constraints is proposed. The objective is to develop a computationally efficient approach. The suggested method is based on a ... -
Distributed Optimal Control of DAE Systems: Modeling, Algorithms, and Applications
(Doctoral theses at NTNU;2022:29, Doctoral thesis, 2022) -
Distributed Optimization Based Adaptive Underwater Communication Schemes
(Bachelor thesis, 2023)Denne bacheloroppgaven presenterer utviklingen av et kommunikasjonssystem for EvoLogics modemer som bruker standardprotokollen JANUS for undervannskommunikasjon. Det blir også integrert en optimaliseringsalgoritme for ... -
Distributed Quasi-Nonlinear Model Predictive Control with Contractive Constraint
(Journal article; Peer reviewed, 2018)An approach to low complexity distributed MPC of nonlinear interconnected systems with coupled dynamics subject to both state and input constraints is proposed. It is based on the idea of introducing a contractive constraint ... -
Distributed Real-Time Systems using Lingua Franca and Zephyr RTOS
(Master thesis, 2023)Sanntidssystemer krever nøye design, spesialisert maskinvare, og ofte bruk av små og skalerbare operativsystemer, som for eksempel Zephyr RTOS. Sanntidssystemer er ofte allerede distribuerte, eller kan ha mye nytte av et ... -
Disturbance Attenuation in Linear 2 x 2 Hyperbolic Systems: With Application to the Heave Problem in Managed Pressure Drilling
(Master thesis, 2013)Many physical systems can be modelled using linear 2 x 2 hyperbolic partial differential equations. The act of stabilizing systems of this type hastherefore been subject to extensive research, and a number of techniques ... -
Disturbance Attenuation in Managed Pressure Drilling
(Master thesis, 2013)In reservoirs where multiple wells have been drilled, the window that the pressure has to stay within becomes smaller. This calls for tight control of the pressure profile in the well. An extra challenge is provided when ... -
Disturbance Attenuation in Managed Pressure Drilling Using Impedance Matching and an Experimental Lab Setup
(Master thesis, 2013)Due to often harsh weather conditions and great water depths, the offshore drilling industry faces many challenges. One of these challenges is to counteract surge and swab pressure effects in the drilling well caused by ... -
Disturbance Attenuation of n+1 Coupled Hyperbolic PDEs
(Journal article; Peer reviewed, 2015)In this paper, we present a state-feedback and a state-observer for disturbance attenuation problems for a class of n + 1 coupled linear hyperbolic partial differential equations. The disturbance and the sensing are located ... -
Disturbance Rejection by Feedback Control in Offshore Drilling: Experimental Results
(Journal article; Peer reviewed, 2014)As oil exploration and development costs rise, the oil industry increases its efforts to improve oil recovery (IOR) from existing fields. IOR is achieved mainly by drilling more wells, but drilling in partially depleted ... -
Disturbance Rejection in 2 x 2 Linear Hyperbolic Systems
(Journal article; Peer reviewed, 2013)Many interesting problems in the oil and gas industry face the challenge of responding to disturbances from afar. Typically, the disturbance occurs at the inlet of a pipeline or the bottom of an oil well, while sensing and ... -
Disturbance Rejection using Conditional Integrators: Applications to path manoeuvring under environmental disturbances for single vessels and vessel formations
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:4, Doctoral thesis, 2011)In this thesis, two main topics are discussed: the application of conditional integrators for disturbance rejection, and how to apply this to path following and trajectory tracking of single marine vehicles and vehicle ... -
A divided and prioritized experience replay approach for streaming regression
(Peer reviewed; Journal article, 2021)In the streaming learning setting, an agent is presented with a data stream on which to learn from in an online fashion. A common problem is catastrophic forgetting of old knowledge due to updates to the model. Mitigating ... -
DNN-based anomaly prediction for the uncertainty in visual SLAM
(Chapter, 2023)The method described in this paper proposes a supervised Deep Neural Network (DNN) approach for the prediction of anomalies in camera-based navigation. The method is inspired by the unsolved issues of Integrity Monitors ... -
Do it yourself hyperspectral imager for handheld to airborne operations
(Journal article; Peer reviewed, 2018)This study describes rapid prototype construction of small and lightweight push broom Hyper Spectral Imagers (HSI). The dispersive element housings are printed by a thermoplastic 3D printer combined with S-mount optical ...