Blar i Institutt for elkraftteknikk på tittel
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Optimal control of variable speed hydropower Utilising model predictive control and virtual inertia for delivering power system services
(Doctoral theses at NTNU;2021:128, Doctoral thesis, 2021) -
Optimal coordination of renewable sources and storage in energy-constrained power systems
(Doctoral theses at NTNU;2022:188, Doctoral thesis, 2022)Integrating high levels of variable renewable energy sources (VRESs) in power systems imperils the security of supply. Energy storage systems (ESSs) contribute both to cost reduction through increased and improved utilization ... -
Optimal Design of Tidal Power Generator Using Stochastic Optimization Techniques
(Master thesis, 2014)Particle Swarm Optimization (PSO) and Genetic Algorithms (GA) are usedto reduce the cost of a permanent magnet synchronous generator with concentratedwindings for tidal power applications. Reducing the cost of the ... -
Optimal design of wind turbine converters using advanced power semiconductor materials
(Master thesis, 2018)Power electronic converters play an important role in interfacing of uncontrolled renewable energy resources such as wind, solar with main power system. However, there are several challenges related to design and performance ... -
Optimal drift av energisystem i et supermarked
(Master thesis, 2013)Dagligvarebutikker er store forbrukere av energi. NTNU, SINTEF Energi og Rema 1000 er tre av mange industrideltagere i CREATIV prosjektet, et prosjekt for å energieffektivisere og redusere klimagassutslipp fra industri. ... -
Optimal forvaltning av reaktiv effekt i regionalnettet i Buskerud
(Master thesis, 2008)Arbeidet som presenteres i denne rapporten er utført i samarbeid med Energiselskapet Buskerud (EB). Oppgavens formål har vært å utarbeide en generell metode for å minimere kostnader knyttet til reaktiv effektflyt i ... -
Optimal Frequency of Silicon Carbide Power Correction Circuits for On-Board Chargers
(Master thesis, 2016)Compact high-efficiency power converters is a hot topic in electrical power engineering. So is also the case for electric and plug-in hybrid electric vehicle battery chargers. Increasing the switching frequency in the power ... -
Optimal Generation Capacity Allocation and Droop Control Design for Current Sharing in DC Microgrids
(Peer reviewed; Journal article, 2023)Considering the increasing amounts of renewable energy generation and energy storage required to meet ambitious environmental goals, it is clear that the next generation of power grids will be dominated by converter-connected ... -
Optimal Integration and Control of Distributed Batteries for Multiple Grid Services
(Master thesis, 2022)Med elektrifiseringen av samfunnet og økt kraftproduksjon fra svært variable, intermitterende og distribuerte fornybare energiressurser kan forårsake ubalanse, ustabilitet og overbelastninger i transmissions- og ... -
Optimal Investment in the Energy System of Zero Emission Neighborhoods
(Doctoral theses at NTNU;2021:386, Doctoral thesis, 2021) -
Optimal investment in the energy system of Zero Emission Neighborhoods considering the refurbishment of the building stock
(Peer reviewed; Journal article, 2021)To increase the impact that Zero Emission Neighbourhoods (ZEN) can have in the effort to decrease CO2 emissions, the refurbishment of the existing building stock is a parameter that should be considered. The existing ... -
Optimal investment timing and capacity choice for pumped hydropower storage
(Journal article; Peer reviewed, 2014)Pumped hydropower storage can smooth output from intermittent renewable electricity generators and facilitate their large-scale use in energy systems. Germany has aggressive plans for wind power expansion, and pumped storage ... -
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 ...