Blar i Institutt for elektro, IT, og kybernetikk på tittel
Viser treff 113-132 av 287
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Hydropower Systems: Comparison of Mechanistic and Table Look-up Turbine Models
(Journal article; Peer reviewed, 2017)In this paper, a detailed overview of hydropower system components is given. Components of the system include intake race, upstream and downstream surge tanks, penstock, turbine and draft tube. A case study which includes ... -
Impact Study of Temperature on the Time Series Electricity Demand of Urban Nepal for Short-Term Load Forecasting
(Journal article; Peer reviewed, 2021)Short-term electricity demand forecasting is one of the best ways to understand the changing characteristics of demand that helps to make important decisions regarding load flow analysis, preventing imbalance in generation ... -
Implementation of simplified sequential stochastic model predictive control for operation of hydropower system under uncertainty
(Peer reviewed; Journal article, 2023)Sequential stochastic model predictive control (MPC) is a control framework that sequentially employs two optimizers. The high-level optimizer generates a coarse long-term plan based on nominal uncertainty values, while ... -
Implementing an Extended Kalman Filter for estimating nutrient composition in a sequential batch MBBR pilot plant
(Journal article; Peer reviewed, 2019)Online monitoring of water quality parameters can provide better control over various operations in wastewater treatment plants. However, a lack of physical online sensors, the high price of the available online water-quality ... -
Implementing an extended kalmanfilter for estimatingnutrient composition in a sequential batch MBBR pilot plant
(Journal article; Peer reviewed, 2019)Online monitoring of water quality parameters can provide better control over various operations in wastewater treatment plants. However, a lack of physical online sensors, the high price of the available online water-quality ... -
The important choice of reference environment in microevolutionary climate response predictions
(Peer reviewed; Journal article, 2022)It is well documented that individuals of wild populations can adjust to climate change by means of phenotypic plasticity, but few reports on adaptation by means of genetically based microevolution caused by selection. ... -
Improved model for solar heating of buildings
(Journal article; Peer reviewed, 2015-11-25)A considerable future increase in the global energy use is expected, and the effects of energy conversion on the climate are already observed. Future energy conversion should thus be based on resources that have negligible ... -
Improvement of the Frequency Response Indicators by Optimal UFLS Scheme Settings
(Peer reviewed; Journal article, 2020)This research investigates the positive changes in the system frequency response indicators caused by the implementation of a set of optimal settings of an under-frequency load shedding (UFLS) scheme. The optimal under-frequency ... -
Industry/college cooperation on undergraduate project work as a college revenue source
(Conference report, 2007)Since 1994, the Norwegian Ministry for Education and Research has required government supported universities and colleges to find additional sources of income. For Telemark University College (TUC) in Porsgrunn, senior ... -
Informative PLS score-loading plots for process understanding
(Journal article; Peer reviewed, 2004)Principal component regression (PCR) based on principal component analysis (PCA) and partial least squares regression (PLSR) are well known projection methods for analysis of multivariate data. They result in scores and ... -
Informative score-loading-contribution plots for multi-response process monitoring
(Journal article; Peer reviewed, 2009)The projection based multivariate data methods of principal component regression (PCR) and partial least squares regression (PLSR) are well established in the eld of process monitoring. Use of score and loading plots for ... -
Innovative primary frequency control in low‐inertia power systems based on wide‐area RoCoF sharing
(Journal article, 2020)Future plans for integration of large non-synchronous generation and the expansion of the power system in the Nordic countries are a concern to transmission system operators due to the common interconnections and electricity ... -
Interleaved high gain DC-DC converter for integrating solar PV source to DC bus
(Peer reviewed; Journal article, 2019)In this paper, a novel non-isolated DC-DC converter topology is proposed for solar photovoltaic (PV) application. The proposed converter is constructed from an interleaved boost converter (IBC) to reduce the input current ... -
Is engineering mathematics really an engineering tool?
(Conference report, 1999)A set of final exams at Telemark State University has been studied to check if there is a symbiotic relationship between the mathematical tool and some technical courses offered at the Electrical Engineering Department. ... -
Lessons to be learned from industry/university cooperation on undergraduate project work
(Conference report, 2000)Experiments with cooperative learning started in 1976, and has since 1982 project work in groups has been the hallmark of the pedagogical approach at Hogskolen i Telemark. This paper examines some attributes of 18 senior ... -
Linearization for Analysis of a Hydropower Model using Python API for OpenModelica
(Journal article; Peer reviewed, 2018)Even though almost all processes in the real world are described by nonlinear models, nonlinear theory for analysis of these models is far less developed than the theory for linear models. Therefore model linearization is ... -
Load prioritization technique to guarantee the continuous electric supply for essential loads in rural microgrids
(Peer reviewed; Journal article, 2021)Microgrid (MG) is one of the practical and best concepts to provide energy access to rural communities, where electric grid extension is not techno-economically feasible. Since the trend of load consumption is not uniform ... -
Low-Viscosity Nonaqueous Sulfolane-Amine-Methanol Solvent Blend for Reversible CO2 Capture
(Peer reviewed; Journal article, 2022)In this work, the absorption–desorption performance of CO2 in six new solvent blends of amine (diisopropylamine (DPA), 2-amino-2-methyl-1-propanol (AMP), methyldiethanolamine (MDEA), diethanolamine (DEA), diisopropanolamine ... -
Machine Learning in Python for Weather Forecast based on Freely Available Weather Data
(Journal article; Peer reviewed, 2018)Forecasting weather conditions is important for, e.g., operation of hydro power plants and for flood management. Mechanistic models are known to be computationally demanding. Hence, it is of interest to develop models that ... -
Markov Chain Monte Carlo Methods Applied to a Synchronous Generator Model
(Peer reviewed; Journal article, 2023)Markov Chain Monte Carlo (MCMC) approaches are widely used for tuning model parameters to fit process measurements. While modern probabilistic programming languages (PPLs) such as Stan, PyMC, and Turing have made it easier ...