Blar i Institutt for elkraftteknikk på tittel
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Optimal koblingssekvens ved oppstart av generator
(Bachelor thesis, 2023)Elektrifisering og økt andel uregulerbar kraft har ført til større svingninger i strømprisen. Vannkraftverk som tidligere holdt en stabil last, kobler nå inn og ut generatorene sine i takt med prissvingningene. Konsekvensene ... -
Optimal Linear Controller for Minimizing DC Voltage Oscillations in MMC-Based Offshore Multiterminal HVDC Grids
(Peer reviewed; Journal article, 2021)The paper aims at minimizing DC voltage oscillations in offshore multiterminal high-voltage direct current (HVDC) grids based on modular multilevel converters (MMCs). The DC voltage stability is a crucial factor in ... -
Optimal LQG Controller for Variable Speed Wind Turbine Based on Genetic Algorithms
(Journal article; Peer reviewed, 2012)Linear Quadratic Gaussian (LQG) control methodology shows useful properties of good performance and robust-ness in controller design applied to wind turbine. Typically, in the design procedure LQG method is necessary to ... -
Optimal microgrid operation considering battery degradation using stochastic dual dynamic programming
(Chapter, 2019)Intermittent energy sources demand temporal storages to balance generation and load, and batteries stand out as an alternative. However, the lifetime is limited, and cycling depth affects the battery degradation rate. ... -
Optimal Multiobjective Control of Low-Voltage AC Microgrids: Power Flow Regulation and Compensation of Reactive Power and Unbalance
(Journal article; Peer reviewed, 2019)The presence of single-phase distributed generators unevenly injecting active power in three-phase microgrids may create undesired upstream current unbalance. Consequently, voltage asymmetry and even active power curtailment ... -
Optimal operating strategies of the micro-CHP for improved interaction between the electrical and thermal demand and supply
(Master thesis, 2014)The research center of Zero Emissions Buildings (ZEB) has a goal of eliminating the greenhouse gas emissions associated with all phases of building development and use. This is achieved through more sustainable building ... -
Optimal Operation of a Distributed System with High Share of Power Electronic Loads
(Master thesis, 2010)The tendency of connecting the loads to the three phase AC system through power electronic interfaces is increasing with time. These interfaces greatly affect the performance of the power system when properly operated. The ... -
Optimal Operation of a Stand-Alone Power Supply using Artificial Intelligence
(Master thesis, 2009)Artificial intelligence (AI) is a collective term for several computing techniques. They have in common that they use non-linear algorithms and that they are inspired from different processes in the nature, in particular ... -
Optimal Operation of Battery Storage for a Subscribed Capacity-Based Power Tariff Prosumer—A Norwegian Case Study
(Journal article; Peer reviewed, 2019)The cost of peak power for end-users subject to a demand charge may be substantial, expecting to increase further with the vast growth of power-demanding devices. In cases where load-shifting is not a viable option for ... -
Optimal Operation of Battery Storage for Peak Shaving Applications - A Norwegian Case Study for a Medium-Scale Swimming Facility
(Master thesis, 2018)With the vast implementation of power-demanding devices, the grid is facing supply challenges. A promising solution could be to implement a peak demand charge, thus encouraging end users to reduce their power demand. ... -
Optimal Operation of Flexible Assets in a Residential Energy System: A Rolling Horizon Approach
(Master thesis, 2022)I nyere tid har løsninger for sluttbrukerfleksibilitet i etterspørselen etter strøm blitt tilgjengelige for private holdninger. Sammen med incentivordninger kan fleksible enheter generere langsiktig verdi for husholdning ... -
Optimal Operation of Hydro-Dominated Power Systems with Environmental Constraints
(Chapter, 2022)This paper studies the operation of a small renewable and hydro-dominated power system when introducing environmental constraints. The risk of rationing and the local price formation is investigated using a stochastic, ... -
Optimal partitioning of smart distribution systems into supply-sufficient microgrids
(Journal article; Peer reviewed, 2018)This paper presents a systematic procedure for partitioning smart distribution systems into supply-sufficient microgrids. Firstly, renewable distributed generations (DGs) are optimally allocated in the distribution system. ... -
Optimal performance of a housing cooperative with PV and smart use of electric water heaters
(Master thesis, 2023)Det forventes en betydelig økning i elektrisitetsforbruket i Norge innen 2050 og en mulig kraftmangel i nær fremtid. Byggesektoren er identifisert som et område med betydelig potensial for å redusere strømforbruket i topper ... -
Optimal placement and sizing of battery energy storage using the genetic algorithm
(Master thesis, 2016)Voltage rise and drop are one of the major problems in low voltage distribution networks. Usually they occur due to the large mismatches in demand and supply of power. An increase in the penetration of renewable energy ... -
Optimal planning of fast charging stations for EVs – A Norwegian case study
(Master thesis, 2020)Abstract The integration of electric vehicles (EVs) plays an integral part in reducing GHG emissions from the transport sector. In recent years, the number of EVs has increased rapidly. Due to government policies and ... -
Optimal planning of fast charging stations for EVs – A Norwegian case study
(Master thesis, 2020)Elektriske biler spiller en sentral rolle for å redusere utslippene av drivhusgasser fra transport sektoren. Antall elbiler har vokst raskt i løpet av de siste årene. Denne er veksten er forvente å fortsette, grunnet ... -
Optimal plassering av sekundærreserver
(Master thesis, 2019)For å opprettholde frekvensnivået i kraftsystemet er det nødvendig å kunne regulere produksjon på kort varsel. Reservemarkedet brukes til å utføre denne reguleringen, ved at systemoperatør kan justere produksjon ved kraftverk ... -
Optimal power flow based coordinated reactive and active power control to mitigate voltage violations in smart inverter enriched distribution network
(Journal article; Peer reviewed, 2023) -
Optimal power flow-based reactive power control in smart distribution network using real-time cyber-physical co-simulation framework
(Peer reviewed; Journal article, 2023)Future distribution networks (DN) are subject to rapid load changes and high penetration of variable distributed energy resources (DER). Due to this, the DN operators face several operational challenges, especially voltage ...