Blar i Institutt for elektro, IT, og kybernetikk på tittel
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Second Order KP Scheme for the Solution of flow in a Venturi Channel
(Journal article; Peer reviewed, 2018)In many different applications, a Venturi channel is used as a tool to compute fluid flow rates. The Saint-Venant equation is a hyperbolic type Partial Differential Equation (PDE) which can be used to model fluid flows ... -
Second order scheme for open channel flow
(Professional article, 2015-08-26)In the search for a numerical scheme which: (i) is semi-descrete in nature (only space discritization) so that built-in ODE solvers in MATLAB or Modelica can be used, (ii) can handle dry bed conditions (island or dry ... -
Security Constrained Unit Commitment and Economic Dispatch by AC Sensitivity Factors
(Chapter, 2022)The dispatch schedule of the electrical power plant units is the result of the solution to the unit commitment optimisation problem, and it minimises the cost of production considering pre-defined technical limits. The ... -
Selection methodology of energy consumption model based on data envelopment analysis.
(Journal article; Peer reviewed, 2017)The energy efficiency monitoring methods in industry are based on statistical modeling of energy consumption. In the present paper, the widely used method of energy efficiency monitoring “Monitoring and Targeting systems” ... -
Sensor placement and parameter identifiability in grey-box models of building thermal behaviour
(Journal article; Peer reviewed, 2019)Building energy management systems can reduce energy consumption for space heating in existing buildings, by utilising Model Predictive Control. In such applications, good models of building thermal behaviour is important. ... -
Short-Term Production Optimization for Electric Submersible Pump Lifted Oil Field With Parametric Uncertainty
(Peer reviewed; Journal article, 2023)This paper uses a scenario-based optimization method to address the Daily Production Optimization from an Electric Submersible Pump lifted oil field under the presence of uncertainty. The primary contribution of this work ... -
Simulation of the Pyrolysis Process: from Plastic Waste to Environmental Friendly Fuel
(Journal article; Peer reviewed, 2018)How to deal with plastic waste is an important question, as it may affect both the climate and environment. A method that may be beneficial to dispose some kinds of plastic waste that cannot be material-recycled is ... -
Simulation of Transcritical Flow in Hydraulic Structures
(Journal article; Peer reviewed, 2015-11-25)In hydraulic engineering, transcritical flows are often required in some applications. One example is in a Venturi channel where the occurrence of critical depth is used to estimate flow rate in the channel. In this paper, ... -
Simulations and real applications of PI and MPC averaging level control in a water resource recovery facility
(Journal article; Peer reviewed, 2018)The basin level control system in an existing wastewater treatment plant is designed for two different operation modes: compliant level control for smooth pump flow, and stiff level control. Both a model-based predictive ... -
Small scale arc fault testing of medium voltage metal enclosed switchgear
(Journal article; Peer reviewed, 2016-03-16)Internal arc fault tests are important for ensuring the safety of medium-voltage metal-enclosed switchgears. Since these tests are conducted at full scale, the costs of the test objects as well as the high-power laboratory ... -
Soft Sensing of Non-Newtonian Fluid Flow in Open Venturi Channel Using an Array of Ultrasonic Level Sensors—AI Models and Their Validations
(Journal article; Peer reviewed, 2017) -
Spray drop size characterization in an external-mixing bluff-body atomizer based on acoustics and Multivariate Analysis
(Peer reviewed; Journal article, 2022)Air-assist atomizers have been widely used in various applications such as the aerospace industry, internal combustion engines, molten metal, food processing, etc. The mean drop size for these atomizers was obtained through ... -
State estimation and model-based control of a pilot anaerobic digestion reactor
(Journal article; Peer reviewed, 2014)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 used is a modified Hill model which is a relatively simple ... -
State Estimation of a Thermal Model of Air-cooled Synchronous Generator
(Peer reviewed; Journal article, 2019)In this paper, we extend a previous study on a totally enclosed thermal model of a synchronous generator, with temperature state estimation using experimental data. The extension includes a new formulation of the system ... -
Static and dynamic eigenvalues in unified stability studies
(Peer reviewed; Journal article, 2022)A framework for unified analysis of small-signal and large-signal power system stability based on static and dynamic eigenvalues is proposed in this paper. The presented implementation is based on Gear's method, which is ... -
Stator Flux-Regulatory Excitation Control in Converter-Fed Synchronous Machines for Pumped-Storage Variable-Speed Hydropower
(Peer reviewed; Journal article, 2022)Pumped-storage hydropower is seen as a promising solution for efficient, large-scale energy storage. One competitive technical solution is the variable-speed hydropower plant (VSHP) configured with a converter-fed synchronous ... -
Status of Micro/Mini-Grid Systems in a Himalayan Nation: A Comprehensive Review
(Peer reviewed; Journal article, 2020)Nepal is a Himalayan country with its 83% of its geography being composed of hills and mountains. Around 22% of the Nepalese population is not receiving electricity through the national power utility and is forced to ... -
Steady-state analysis and voltage control of self-excited induction generator (SEIG)
(Chapter; Peer reviewed, 2012)Self-Excited Induction Generators have become the prime choice for wind energy conversion in remote and rural areas due to many advantages over Grid Connected Induction Generators. However, their main drawback is poor ... -
STEAM FOR STEM - INCLUDE "ART" in STEM (Science, Technology, Engineering and Mathematics)
(Chapter, 2019)After a fairly recent study discussed in IEEE Spectrum, with the catchy title, “want-girls-attracted-to-tech-put-a-for-art-in-stem”, on the strategies of attracting more female students to opt for studies in STEM (Science, ... -
Stochastic MPC For Optimal Operation of Hydropower Station Under Uncertainty
(Peer reviewed; Journal article, 2022)The operational condition at the Dalsfoss power station is complicated due to many requirements related to environmental regulations and safety constraints such as the seasonally varying water level requirement at the ...