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Reliability Assessment Tool for Modern Electrical Distribution Systems – A Monte Carlo Simulation Approach
(Doctoral theses at NTNU;2023:172, Doctoral thesis, 2023)The electrical power system is under constant development, and multiple changes will occur in the upcoming years, leading to a more intelligent and active system with the integration of ICT, distributed generation, and ... -
Reliability Evaluation of Energy-Limited Hydro-Electric Generation Systems
(Master thesis, 2018)Reliability studies are an essential part of power system planning and operation studies. A wide range of reliability indices is used by system planners and operators to ensure successful operation of power systems against ... -
Reliability of Supply and the Impact of Weather Exposure and Protection System Failures
(Peer reviewed; Journal article, 2020)Extreme weather is known to cause failure bunching in electrical transmission systems. However, protection systems can also contribute to the worsening of the system state through various failure modes—spontaneous, missing ... -
Reliability testing of Power Schottky Diodes used for high current rectifying
(Master thesis, 2014)This project was done in cooperation with the TE-EPC-LPC section at CERN. They were experiencing failures in one of their power converter from the rectifying power diodes, and were interested in finding the reason for the ... -
Reliability-based Derating Approach for Interconnectors
(Master thesis, 2017)This Masters project work has its genesis in the preliminary findings of a research collaboration in 2016 between the Department of Electric Power Engineering, NTNU, and Statnett (the Norwegian Transmission System Operator). ... -
Reliability-based Reserve Connections in the Sheringham Shoal Offshore Wind Farm - A Technical-Economical Evaluation of Increasing the Reliability in an Existing Offshore Wind Farm
(Master thesis, 2016)Offshore wind has become one of the fastest growing renewable energy sources over the last twenty years. It has the advantage of having great energy generating capabilities, which may be of good value for the energy ... -
Reliable electric power conversion for connecting renewables to the distribution network
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:122, Doctoral thesis, 2008)When connecting distributed power generation systems to the utility grid, a power converter is normally placed between the main grid and the local micro-grid, at the point of common coupling. In order to synchronize the ... -
Reliable Power Cable Ground Screen Connections - Resistance of improper ground screen connections exposed to heat cycles
(Master thesis, 2018)The Norwegian power grid consists of an ever-increasing share of power cables. In Norway, the ground screen of the cable in distribution networks is usually grounded at each end of the cable length due to recommendations ... -
RELSAD: A Python package for reliability assessment of modern distribution systems
(Peer reviewed; Journal article, 2022)The electrical power distribution system is under constant development and multiple changes will occur in the upcoming years. Through the integration of new technology such as Renewable Energy Resources (RES) and flexible ... -
Renewable Energy in Longyearbyen
(Master thesis, 2020)Longyearbyen på Svalbard trenger et nytt energisystem for å bevege seg bort fra kullkraft. Klimaendringene krever rask handling, og det er derfor ønskelig at et nytt energisystem er basert på fornybar energi. Samtidig må ... -
Renovasjon av betongmastlinje
(Bachelor thesis, 2021)Det skal utføres en renovasjon av en betongmastlinje som er reserveforsyningen til Bø kommune i Nordland. Det er ønskelig å finne en løsning ved å fremdeles bruke de gamle betongmastene som allerede eksisterer. Det er også ... -
Representation of uncertainty in market models for operational planning and forecasting in renewable power systems: a review
(Peer reviewed; Journal article, 2023)As the power system is becoming more weather-dependent and integrated to meet decarbonization targets, the level and severity of uncertainty increase and inevitably introduce higher risk of demand rationing or economic ... -
Representing Long-term Impact of Residential Building Energy Management using Stochastic Dynamic Programming
(Chapter, 2020)Scheduling a residential building short-term to op- timize the electricity bill can be difficult with the inclusion of capacity-based grid tariffs. Scheduling the building based on a proposed measured-peak (MP) grid tariff, ... -
Research on common-mode and dependent (CMD) outage events in power systems: a review
(Journal article; Peer reviewed, 2017)The purpose of this paper is to present a review of some fundamental concepts and practical applications in the area of common-mode and dependent (CMD) outage events in power systems. The paper is a result of ongoing ... -
Residential Photovoltaic and Battery Energy System with Grid Support Functionalities
(Chapter, 2015)This paper presents the design of a control system for a grid connected residential photovoltaic (PV) system with battery energy storage (BES). The control methods for the power electronic converters are presented and the ... -
Resonant Overvoltages in Offshore Wind Farms Analysis, modeling and measurement
(Doctoral theses at NTNU;2017:50, Doctoral thesis, 2017)In this thesis, the resonant overvoltages at the terminal and inside wind turbine transformers are studied. The motivation of this study is the requirement for improved transformers for wind farms, especially Offshore Wind ... -
Ressurskartlegging av vindkraftlokasjoner
(Master thesis, 2007)Formålet med denne masteroppgaven er å dokumentere arbeidsoppgaver som gjennomføres under ressurskartleggingsprosessen for et potensielt vindparkområde. Det er lagt spesiell stor vekt på problemstillinger som reiser seg ... -
Resultatrapport NFR Project no 246784: Operation of the Smart Grid With Wide Area Information
(Research report, 2019) -
Resynchronization of Distributed Generation based on the Universal Droop Controller for Seamless Transfer Between Operation Modes
(Journal article; Peer reviewed, 2019)Distributed generation (DG) inverters can operate in the islanded mode and the grid-connected mode. When these DG inverters operate in the islanded mode, they often form a microgrid. The magnitude and phase of the main ...