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Experimental Investigation of Operational Reliability of Silicon Carbide MOSFETs
(Master thesis, 2017)As the performance of silicon power semiconductors is close to the theoretical limit, other semiconductor materials are sought to improve power electronics system efficiency. Devices made with the wide bandgap material ... -
Experimental investigation on ablation-assisted current interruption - Experimental setup and preliminary results
(Chapter, 2016)This paper presents a flexible setup to investigate ablation-assisted interruption of load currents. The electrical test circuit is grid connected with a transformer secondary voltage from 6.9 kV to 24 kV. The applied ... -
Experimental performance comparison of six-pack SiC MOSFET and Si IGBT modules paralleled in a half-bridge configuration for high temperature applications
(Chapter, 2016)—In this paper, the switching performance of asix-pack SiC MOSFET module (CCS050M12CM2) is inves-tigated experimentally using a standard double pulse testmethod. The upper three and the lower three MOSFETsof the ... -
Experimental performance evaluation of two commercially available, 1.2 kV half-bridge SiC MOSFET modules
(Chapter; Peer reviewed, 2016)In this paper, the switching performances of two state-of-the-art half-bridge SiC MOSFET modules are evaluated using a standard double pulse test methodology. The selected modules are commercially available, and have the ... -
Experimental Set-up for partial discharge detection
(Master thesis, 2015)Offshore HVDC overføringssystemer bruker omformerstasjoner mellom AC- og DC-kraftnettet. Likespenning fra omformerstasjonene vil inneholde transienter. Disse ligger i området 1 til 10 \% av den nominelle likespenningen, ... -
Experimental Studies of Streamer Phenomena in Long Oil Gaps
(Doctoral Theses at NTNU, 1503-8181; 2013:106, Doctoral thesis, 2013)In this study, the characteristics of non-breakdown and breakdown streamers have been investigated through the effects of dissolved gases/air, carbon particles, additives, reduced pressure, liquid chemistry and voltage ... -
An Experimental Study of Short-Circuit Current Making Operation of Air Medium-Voltage Load Break Switches
(Peer reviewed; Journal article, 2022)Replacing SF 6 , the most potent greenhouse gas, with an alternative gas is a challenge faced by medium-voltage load break switches (MV-LBS). Air is a possible alternative, but there are some challenges regarding low ... -
Experimental study on fast-switching series-connected SiC MOSFETs
(Chapter, 2017)This paper presents an experimental study on series-connection of Silicon Carbide MOSFETs. The switching performance of two series-connected SiC MOSFETs rated at 1200 V and having on-state resistances of 80 mΩ was tested ... -
Experimental validation of a new impedance based protection for networks with distributed generation using co-simulation test platform
(Peer reviewed; Journal article, 2019)Combined real-time hardware-in-the-loop simulations and modeling of communication networks (co-simulation platforms) is a powerful test-bed for development and validation of relay protection schemes utilizing communication ... -
Experimental Verification of a Voltage Droop Control for Grid Integration of Offshore Wind Farms Using Multi-terminal HVDC
(Journal article; Peer reviewed, 2014)This paper presents an experimental verification of a voltage droop control for a multi-terminal HVDC system for the grid integration of offshore wind farms. The laboratory setup is composed by four voltage-source converter ... -
Experimental verification of control methods for series connected VSCs applied to a modular HVDC power train for offshore wind
(Master thesis, 2023)I denne avhandlingen har strømkontroll og spenningsbalanseringskontroll av serie koblede modulære spenningskildeomformere (VSC) blitt testet eksperimentelt og gjennom simuleringer. Forskingen gjort i sammenheng med denne ... -
Expert system for hydropower stations developed in Volve Knowledge Tools
(Master thesis, 2008)Despite the fact that hydropower stations are equipped with the latest technology in both regulation and remote control, it is not enough to replace the traditional machine expert. The machine expert was a person stationed ... -
Exploring a Modulation Strategy by Experiments for Modular Multilevel Converter in Faulty Operation
(Chapter, 2017)Modular Multilevel Converter (MMC) technology is rapidly evolving, and research is ongoing to make the MMC suitable for more applications. This topology comprises multiple Sub-Modules (SM) to form the output voltage levels ... -
Exploring prospective benefits of electric vehicles for optimal energy conditioning in distribution networks
(Journal article; Peer reviewed, 2018)A potentially beneficial new opportunity is emerging around the exchange of energy between electric vehicles and the electrical energy grid, particularly as more low-carbon energy sources are connecting to the grid. ... -
Exploring the Effects of Integrating Power Link Island into the North Sea through Transmission Expansion Planning
(Master thesis, 2023)I overgangen mot et karbonnøytralt samfunn har Nordsjøen blitt pekt ut som en strategisk lokasjon for utnyttelse av havvind. For å håndtere den variable energiproduksjonen kreves betydelige forbedringer i transmisjonssystemet. ... -
Exploring the Effects of Integrating Power Link Island into the North Sea through Transmission Expansion Planning
(Master thesis, 2023)I overgangen mot et karbonnøytralt samfunn har Nordsjøen blitt pekt ut som en strate- gisk lokasjon for utnyttelse av havvind. For å håndtere den variable energiproduksjonen kreves betydelige forbedringer i transmisjonssystemet. ... -
Exploring the link between the EU emissions trading system and net-zero emission neighbourhoods
(Peer reviewed; Journal article, 2023)Climate policy is transforming the energy system and the building sector. Since these sectors overlap, we need to understand how the short-term operational link between them impact their long-term development subject to ... -
Exploring the Potential for Increased Production from the Wave Energy Converter Lifesaver by Reactive Control
(Journal article; Peer reviewed, 2013)Fred Olsen is currently testing their latest wave energy converter (WEC), Lifesaver, outside of Falmouth Bay in England, preparing it for commercial operation at the Wavehub test site. Previous studies, mostly focusing on ... -
Exploring the Properties of a Modular Multilevel Converter Based HVDC Link: With Focus on Voltage Capability, Power System Relations, and Control System
(Master thesis, 2012)The properties of a Modular Multilevel Converter (MMC) are investigated. This is a new and promising converter type for High Voltage Direct Current (HVDC) applications. A case with a MMC connected to a stiff grid through ... -
Export of Norwegian Pumped Storage
(Master thesis, 2014)The increased use of renewable energy sources in Continental Europe, in particular Germany, has led to a great variability in power production and prices. One proposed way to remedy the Continent s power balance which ...