Search Results - "Lie, Bernt"

Electric Submersible Pump Lifted Oil Field: Basic Model for Control, and Comparison of Simulation Tools by Lie, Bernt

“…Optimal operation of petroleum production is important in a transition from energy systems based on fossil fuel to sustainable systems. One sub-process in…”
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Optimal Control Architecture for Balancing Performance and Cost in Oil and Gas Production Systems by Jayamanne, Kushila, Lie, Bernt

“…In the domain of process design, stakeholders pursue two interrelated yet potentially conflicting objectives: maximization of system performance and reduction…”
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HMC Techniques for Reducing the Uncertainty of Gas-Lifted Oil Field Model by Jayamanne, Kushila, Lie, Bernt

“…Parametric model uncertainties could have a high impact on the predictive capabilities of a model. When process measurements become available, these…”
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Bayesian Inference for Thermal Model of Synchronous Generator-Part I: Parameter Estimation by Pandey, Madhusudhan, Lie, Bernt

“…Due to the increasing injection of intermittent power sources (solar+wind) into a common grid, dispatchable sources such as hydro power should be able to help…”
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Bayesian Inference for Thermal Model of Synchronous Generator Part-II: State Estimation by Pandey, Madhusudhan, Lie, Bernt

“…This paper is the Part II of the series on parameter and state estimation using the Bayesian inference for a thermal model of a synchronous generator. Part I…”
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OpenHPL for Modelling the Trollheim Hydropower Plant by Vytvytskyi, Liubomyr, Lie, Bernt

“…An increase of tightly integrated, renewable energy sources with highly varying production leads to a greater need for flexible hydropower plants to “balance”…”
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Using MPC to Balance Intermittent Wind and Solar Power with Hydro Power in Microgrids by Pandey, Madhusudhan, Winkler, Dietmar, Sharma, Roshan, Lie, Bernt

“…In a microgrid connected with both intermittent and dispatchable sources, intermittency caused by sources such as solar and wind power plants can be balanced…”
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Mechanistic Model of an Air Cushion Surge Tank for Hydro Power Plants by Pandey, Madhusudhan, Winkler, Dietmar, Vereide, Kaspar, Sharma, Roshan, Lie, Bernt

“…Due to the increasing use of renewable energy sources, and to counter the effects of fossil fuels, renewable dispatchable hydro power can be used for balancing…”
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The OpenModelica Integrated Environment for Modeling, Simulation, and Model-Based Development by Fritzson, Peter, Pop, Adrian, Abdelhak, Karim, Ashgar, Adeel, Bachmann, Bernhard, Braun, Willi, Bouskela, Daniel, Braun, Robert, Buffoni, Lena, Casella, Francesco, Castro, Rodrigo, Franke, Rüdiger, Fritzson, Dag, Gebremedhin, Mahder, Heuermann, Andreas, Lie, Bernt, Mengist, Alachew, Mikelsons, Lars, Moudgalya, Kannan, Ochel, Lennart, Palanisamy, Arunkumar, Ruge, Vitalij, Schamai, Wladimir, Sjölund, Martin, Thiele, Bernhard, Tinnerholm, John, Östlund, Per

“…OpenModelica is a unique large-scale integrated open-source Modelica- and FMI-based modeling, simulation, optimization, model-based analysis and development…”
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Markov Chain Monte Carlo Methods Applied to a Synchronous Generator Model by Jayamanne, Kushila, Ban, Zhe, Pandey, Madhusudhan, Ghaderi, Ali, Lie, Bernt

“…Markov Chain Monte Carlo (MCMC) approaches are widely used for tuning model parameters to fit process measurements. While modern probabilistic programming…”
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Dynamic model for simulating transient behaviour of rotary drum granulation loop by Vesjolaja, Ludmila, Glemmestad, Bjørn, Lie, Bernt

“…In this paper, a dynamic model for a rotary drum granulation loop with external product separator is developed. A population balance is used to capture dynamic…”
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Nonlinear observer for hydropower system by Vytvytskyi, Liubomyr, Sharma, Roshan, Lie, Bernt

“…Estimation of unmeasured states plays an essential role in the design of control systems as well as for monitoring of hydropower plants. The standard Kalman…”
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State Estimation and Model-Based Control of a Pilot Anaerobic Digestion Reactor by Haugen, Finn, Lie, Bernt, Bakke, Rune

“…A state estimator and various model-based control systems have been designed for a real anaerobic digestion (AD) pilot reactor fed with dairy manure. The model…”
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Estimating uncertainty of model parameters obtained using numerical optimisation by Brastein, Ole Magnus, Lie, Bernt, Pfeiffer, Carlos F., Skeie, Nils-Olav

“…Obtaining accurate models that can predict the behaviour of dynamic systems is important for a variety of applications. Often, models contain parameters that…”
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Third Order Reconstruction of the KP Scheme for Model of River Tinnelva by Dissanayake, Susantha, Sharma, Roshan, Lie, Bernt

“…The Saint-Venant equation/Shallow Water Equation is used to simulate flow of river, flow of liquid in an open channel, tsunami etc. The Kurganov-Petrova (KP)…”
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Computational Fluid Dynamics Study of the Effects of Drill Cuttings on the Open Channel Flow by Lie, Bernt, Lundberg, Joachim, Berg, Christian, Welahettige, Prasanna, Vaagsaether, Knut

“…A three-dimensional computational fluid dynamics (CFD) study was carried out for drilling fluid flow with drill cuttings in open channels. The flow is similar…”
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Relaxed Ziegler-Nichols Closed Loop Tuning of PI Controllers by Haugen, Finn, Lie, Bernt, Haugen, F., Bakke, R., Lie, B.

“…A modification of the PI setting of the Ziegler-Nichols closed loop tuningmethod is proposed. The modification is based on a combination of the Skogestad…”
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Model based control for run-of-river system. Part 2: Comparison of control structures by Vytvytskyi, Liubomyr, Sharma, Roshan, Lie, Bernt

“…Optimal operation and control of a run-of-river hydro power plant depend on good knowledge of the elements of the plant in the form of models. Both the control…”
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Model based control for run-of-river system. Part 1: Model implementation and tuning by Vytvytskyi, Liubomyr, Sharma, Roshan, Lie, Bernt

“…Optimal operation and control of a run-of-river hydro power plant depends on good knowledge of the elements of the plant in the form of models. River reaches…”
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Structural Observability Analysis of Large Scale Systems Using Modelica and Python by Perera, M. Anushka S., Lie, Bernt, Pfeiffer, Carlos F.

“…State observability of dynamic systems is a notion which determines how well the states can be inferred from input-output data. For small-scale systems,…”
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