Browsing Institutt for elkraftteknikk by Title
Now showing items 1-20 of 2547
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2D Finite Element (FE) modeling and simulation of the stator winding of synchronous machines in adjustable degree of detailing
(Master thesis, 2007)The General Purpose 2D Electromagnetic Tool, GP2DET, at Voith Siemens Hydro Power Generation GmbH is a tool developed for simulation and calculation of electrical parameters in large hydro power machines. In this tool, the ... -
3-Phase Multi-Functional Grid-Tied Inverter for Compensation of Oscillating Instantaneous Power
(Chapter, 2019)The primary objective of this paper is to present the basic terms of Conservative Power Theory (CPT) and its applications for compensating instantaneous power oscillations in three-phase three-wire systems. The reference ... -
30 kW Power Boost System for Drive Trains for Electric Vehicles Based on Supercapacitor Technologies
(Master thesis, 2007)The goal of the master thesis is to design, dimension and construct a power boost system for the drive trains in electric vehicles, utilizing supercapacitor technology. In order to build the system a supercapacitor bank ... -
A 1 kW PFC converter with GaN-transistors and planar magnetics
(Master thesis, 2019)Auka krafttettleik, kostnadsreduksjon, auka effektivitet og auka driftssikkerheit er fire av dei viktigaste målsetjingane i halvleiarindustrien i dag. Ved bruk av GaN-halvleiarar er fleire av desse målsetjingane innan ... -
A Case Study on Medium-Term Hydropower Scheduling with Sales of Capacity
(Peer reviewed; Journal article, 2016)This paper conducts a case study on hydropower scheduling considering sales of capacity reserves and impacts of detailed mod-elling. In latter years a growing demand for reserve capacity has been needed to ensure stable ... -
A Case Study on the Grid Integration of Electric Vehicles in Norway - In combination with Solar Power, Fast Charging Stations and an Electric Ferry
(Master thesis, 2022)Norge er ledende i overgangen til elektriske kjøretøy, med 82,9% av alle nyregistrerte kjøretøy så langt i 2022 er elbiler. Dette høye tilskuddet av elbiler skaper utfordringer for nettoperatørene, ettersom dagens strømnett ... -
A Case Study on the Impact of Vehicle-to-Grid on Reliability of Supply in a Norwegian Distribution System
(Master thesis, 2023)Reduksjonen av utslipp for å reversere klimaendringene er en av de viktigste punktene fra bærekrafts-målene fremsatt av Forente Nasjoner. Omfattende elektrifisering av verden har blitt pekt på som ett av de mest lovende ... -
A co-simulation framework to coordinate battery optimization and load flow - Improving voltage quality in the distribution grid
(Master thesis, 2022)Økningen av distribuerte energi ressurser slik som solcellepanel (PV) og effektkrevende apparater har skapt nye utfordringer som leveringskvaliteten på spenningen for distribusjonsnettet, og det er kanskje mulig å bruke ... -
A Comparison of Grid-Forming and Grid-Following Control for BESS-STATCOM On Industrial Isolated Grids
(Master thesis, 2024)Integrasjonen av fornybare energikilder og energilagringssystemer har revolusjonert dynamikken i kraftnett, og krever mer avanserte kontrollstrategier for spenningskildeomformere (VSC-er) i nett-tilkoblede systemer. Spesielt ... -
A comparison of the SDP and SDDP method for medium-term scheduling of Meråker hydropower system
(Master thesis, 2023)I dagens samfunn blir flere fornybare energikilder innført som en konsekvens av et ønske om å redusere klimautslippene. Ettersom flere av disse ikke kan kontrolleres, for eksempel er man avhenging av vind for å produsere ... -
A control scheme for utilizing energy storage of the modular multilevel converter for power oscillation damping
(Chapter, 2017)This paper presents a control scheme that utilizes energy storage of the Modular Multilevel Converter (MMC) for Power Oscillation Damping (POD) service. Such a service is used to enhance grid stability by providing damping ... -
A Control Strategy for Seamless Interconnection of Microgrids in a Multigrid Configuration
(Master thesis, 2021)Mikronett er et konsept som har fått økt oppmerksomhet i takt med økt distribuert kraftproduksjon i kraftnettet. Mye av grunnen til økningen i distribuert produksjon er at det integreres mer fornybare energikilder. En ... -
A Data-driven Approach to Grid Impedance : Identification for Impedance-based Stability Analysis under Different Frequency Ranges
(Chapter, 2019)The instability caused by inappropriate damping design of grid-connected converters under specific grid impedance makes the grid impedance estimation a crucial issue. To guide the system controller design toward a stable ... -
A DC-Grid Proposal for Deep Sea Mining Focusing on Power Quality Aspects
(Master thesis, 2019)Over the last years, DC grids have become a significant trend topic as a solution for better power distribution systems reducing losses and increasing the efficiency significantly. The technology of HVDC transmission is a ... -
A Feasibility Study of Blockchain Technology As Local Energy Market Infrastructure
(Master thesis, 2018)The recent surge in renewable energy in the distribution grid could transform the generation side to be more variable, which potentially reduces power quality. This technical local challenge could be compensated by introducing ... -
A generic framework for power system flexibility analysis using cooperative game theory
(Journal article; Peer reviewed, 2017)Electricity grid infrastructures provides valuable flexibility in power systems with high shares of variable supply due to its ability to distribute low-cost supply to load centers (spatial), in addition to interlinking a ... -
A Guideline for employing PSIM on power converter Applications: Prototyping and educational tool
(Chapter, 2017)Fast prototyping tools for power electronics and control systems are becoming handful players on effortlessly translating computer simulated results into real experimental validations, not abdicating reliability. Among ... -
A Hybrid Reinforcement Learning and Tree Search Approach for Network Topology Control
(Master thesis, 2023)The growing demand for electricity, driven by widespread adoption of heat pumps, electric vehicles, and industrial electrification, strains power grids and introduces challenges for a reliable and secure supply amidst ... -
A mechanism for allocating benefits and costs from transmission interconnections under cooperation: A case study of the North Sea offshore grid
(Journal article; Peer reviewed, 2018)We propose a generic mechanism for allocating the benefits and costs that result from the development of international transmission interconnections under a cooperative agreement. The mechanism is based on a planning model ... -
A Method for bidding in sequential Capacity Reserve Markets using mixed-integer programming
(Master thesis, 2012)System security and power quality is important in today's society and the ability to regulate and balance production and consumption is crucial for any power system. More and more penetration of intermittent production in ...