Browsing Institutt for elkraftteknikk by Title
Now showing items 1059-1078 of 2571
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Handling of Ground Fault in Distribution Networks: Regarding the Field Test Taken by SINTEF in 2005
(Master thesis, 2009)SUMMARY The main subject of this master thesis is the study of single phase to ground fault in a given distribution network. SINTEF took part in a field test, which was done in 2005. After the field test being done, a ... -
Hard and soft switching losses of a SiC MOSFET module under realistic topology and loading conditions
(Chapter, 2017)This paper investigates the switching performance of a 1.2 kV half-bridge SiC MOSFET module from Sanrex. Unlike in a standard SiC MOSFET module, where the MOSFET and the anti-parallel diode chips are fabricated separately, ... -
Hardware Implementation of R-GOOSE for Wide-Area Protection and Coordination
(Chapter, 2018)Abstract—With the evolution of substation automation standards (IEC61850), it is possible to share protection and control information over wide-area network (WAN). The modern microprocessor based intelligent electronic ... -
Hardware-in-the-loop testing of impedance protection with compensation of fault impedance and DG infeed current
(Journal article; Peer reviewed, 2018)The standard impedance protection deployed in distribution networks can malfunction due to underreach errors caused by fault impedances and remote infeed currents from embedded generators (becoming more and more widespread). ... -
Harmonic analysis of collection grid in offshore wind installations
(Master thesis, 2018)This thesis work has presented a comprehensive harmonic analysis in megawatt offshore wind farms where the permanent magnet synchronous generator (PMSG) is used. Firstly, a detail configuration of the wind energy conversion ... -
Harmonic Distortion in Wind Farms with Modern Wind Power Plants
(Master thesis, 2014)In this master thesis, harmonic distortion related to the use of voltage source converters (VSC) in modern wind farms has been studied. A method that can cancel harmonic content, in parks with wind turbines using VSCs, has ... -
Harmonic filter design for large offshore wind power plants
(Master thesis, 2021)This thesis was written in collaboration with Vattenfall, with the objective of simulating, analysing, and identifying the main factors influencing the harmonic distortions in HVAC connected offshore wind power plants and, ... -
Harmonic Propagation and Production in Offshore Wind Farms
(Master thesis, 2018)Modern wind farms are increasing in size and complexity. As a result, increased power injected from large offshore wind farms is having a significant impact on the stability and power quality of the grid. Harmonics are a ... -
Harmonic Resonance Analysis of Offshore Wind Farm utilizing Type-IV Wind Turbines
(Master thesis, 2021)Utnyttelse av fornybare energikilder er av største betydning for å oppnå de bærekraftige utviklings- målene som er satt av FN. Av disse energikildene har havvind et betydelig potensiale. For å utnytte dette potensialet må ... -
Harmonic Resonance Mode Analysis and Application for Offshore Wind Power Plants
(Master thesis, 2015)This thesis is centred around a form of resonance analysis for power systems known as Harmonic Resonance Mode Analysis (HRMA). It is a form of eigenvalue analysis and has some parallels to the modal analysis commonly ... -
Harmonic Resonance Mode Analysis in dq Domain
(Journal article, 2017)Harmonic Resonance Mode Analysis (HRMA) is a technique developed to study harmonic resonance in a power system. Compared to conventional resonance analysis techniques, HRMA is a powerful method that can indicate the origin ... -
Harmonic Sharing in Microgrid Applications - Modeling, Developing and Evaluating a Microgrid Control System With Harmonic Sharing Capability
(Master thesis, 2018)The world is critically dependent on a transition from fossil fuels to renewable energy. Microgrids represent a promising systematic approach to increasing the reliability of the power system and solving the challenge of ... -
Harmonic-Invariant Scaling Method for Power Electronic Converters in Power Hardware-in-the-Loop Test Beds
(Peer reviewed; Journal article, 2023)Power hardware-in-the-loop (PHIL) is an experimental technique that uses power amplifiers and real-time simulators for studying the dynamics of power electronic converters and electrical grids. Power hardware-in-the-loop ... -
Håndtering av endrede jordfeilegenskaper i 22kV distribusjonsnett - Med fokus på deteksjon og vern
(Master thesis, 2017)Jordfeilvern er en viktig del av distribusjonsnettet da jordfeil er den mest utbredte feilen på dette nettnivået. En jordfeil i distribusjonsnettet vil berøre sluttbrukerne i stor grad og i et stadig mer energikrevende ... -
Håndtering av farespenninger ved jordfeil i direktejordede 132 kV regionalnett uten gjennomgående jording
(Master thesis, 2024)Oppgaven har undersøkt hvordan en overgang fra et spolejordet til et direktejordet 132 kV nett kan gjennomføres for tremastledninger som ikke har gjennomgående jord. Overgangen skal ikke medføre økt risiko knyttet til ... -
Health Indexing of Norwegian Power Transformers
(Master thesis, 2015)In this thesis, a health index model for condition evaluation of power transformers is proposed. A health index is a tool that processes service and condition data into a score which describes the overall health of an ... -
Heat Generation by Heat Pump for LNG Plants
(Master thesis, 2011)Abstract The LNG production plant processing natural gas from the Snøhvit field outside Hammerfest in northern Norway utilizes heat and power produced locally with gas turbines. Building a new production train supplied ... -
Heavy-duty electric vehicle charging profile generation method for grid impact analysis
(Chapter, 2021)The transport sector is responsible for 20 % of the global CO 2 emissions. By transitioning from internal-combustion engine to battery-electric vehicles, there is a big potential in reducing the emissions. The upcoming ... -
Helping end-users help each other: Coordinating development and operation of distributed resources through local power markets and grid tariffs
(Peer reviewed; Journal article, 2020)There is an ongoing transition in the power system towards an increasing amount of flexible resources and generation technologies at the distribution system level. An appealing alternative to facilitate efficient utilization ... -
A Hierarchical Wind Power Plant Supervisory Controller
(SINTEF Rapport;, Research report, 2020)