Blar i NTNU Open på forfatter "Fosso, Olav B"
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Passivity-Based Control for Small Hydro-Power Generation with PMSG and VSC
Gil Gonzalez, Walter Julian; Garces, Alejandro; Fosso, Olav B (Peer reviewed; Journal article, 2020)This paper presents a passivity-based control method for a small hydro-power system that consists of a permanent magnet synchronous generator (PSMG) connected to the grid through a back-to-back converter. Nonlinear models ... -
Passivity-Based Control of Power Systems Considering Hydro-Turbine with Surge Tank
Gil Gonzales, Walter Julian; Garces, Alejandro; Fosso, Olav B; Escobar, Andres (Journal article; Peer reviewed, 2019)This paper proposes an interconnection and damping assignment passivity-based control (IDA-PBC) for multimachine power systems including hydro-turbine governing systems (HTGS) with surge tank. The main objective is to ... -
Phasor Estimation based on Modified Recursive Prony
Khodaparast Ghadikolaei, Jalal; Fosso, Olav B; Molinas Cabrera, Maria Marta (Chapter, 2018)Synchronized Measurement Technology represented by Phasor Measurement Units (PMUs) is a sophisticated tool for power system monitoring and contributes to a more reliable and secure operation of the power systems. Phasor ... -
Photovoltaic Power Prediction and Control Strategies of the Local Storage Unit at Campus Evenstad
Rognan, Lene Marie Hope (Master thesis, 2018)This thesis represents a building block for future model predictive control of a battery connected to a complex energy system consisting of a photovoltaic (PV) system and a combined heat and power (CHP) plant. The complex ... -
POWER SYSTEM EXPANSION PLANNING IN MOZAMBIQUE: TRANSIENT STABILITY ASPECTS AND OPTIMIZATION OF VAR SOURCES
Kalemba, Lester (Master thesis, 2011)The Generation Master Plan recently (July 2009) developed by Norconsult for the Mozambican Power Sector in Southern Africa highlights a number of candidate projects, most of which will involve building of large Hydro Power ... -
Pricing electricity in constrained networks dominated by stochastic renewable generation and electric energy storage
Aaslid, Per; Korpås, Magnus; Belsnes, Michael Martin; Fosso, Olav B (Peer reviewed; Journal article, 2021)This paper studies the electricity price formation in a competitive market when introducing generation from variable renewable energy technologies with zero marginal cost and electric energy storage systems. A power system ... -
Problemstillinger knyttet til start av store motorer i svake nett
Birkeland, Kjell Vegard (Master thesis, 2007)På det kombinerte produksjons og lagerskipet for olje og gassproduksjon Norne FPSO er det installert fire vanninjeksjonspumper på 5,2 MW hver. Vanninjeksjonspumpene opprettholder trykket i olje og gassreservoarene. Motorene ... -
Prony's method as a tool for power system identification in Smart Grids
Føyen, Sjur; Kvammen, Mads-Emil B.; Fosso, Olav B (Chapter, 2018)Abstract —This paper investigates the theory, intuition and performance of two known implementations of Prony’s method. Such methods are useful for identifying the individual modes of a system without constructing a ... -
Prospective and Efficient Techniques for Model Reduction in Reliability Calculations
Pedersen, Robert Fossmark (Master thesis, 2013)A reliable electric power supply is essential for modern society. Recently, severe blackouts worldwide have attracted attention to reliability studies in power system planning and operation. The relevance of the traditional ... -
Quantitative Analysis of Bidding Strategies and Decision Parameters: Short-term Hydropower Scheduling
Kristiansen, Martin (Master thesis, 2014)Norwegian hydropower producers bid to sell tomorrows power in the day-ahead auction called Elspot, at the Nordic power exchange, Nord Pool Spot. Price and inflow are stochastic variables, as well as important decision ... -
Real Time Phasor Estimation based on Recursive Prony with Several Channels of One PMU
Khodaparast Ghadikolaei, Jalal; Fosso, Olav B; Molinas Cabrera, Maria Marta (Chapter, 2018)Phasor estimation is crucial for monitoring and control of smart power systems. The classical signal processing method named Prony has been used for estimating the parameters of measured signals such as frequency, damping ... -
RELSAD: A Python package for reliability assessment of modern distribution systems
Myhre, Stine Fleischer; Fosso, Olav B; Heegaard, Poul Einar; Gjerde, Oddbjørn (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 ... -
SDFT based PMU prototype
Radevic, Isidora (Master thesis, 2018)Presently, phasor measurement units (PMUs) are the most accurate and advanced time-synchronized technology. PMUs are the main element of the Wide-Area Monitoring, Protection and Control System, the concept that provides ... -
Short-Term Hydrothermal Scheduling with Solar and Wind Farms Using Second-Order Cone Optimization with Chance-Box Constraints
Castano, Juan Camilo; Garces, Alejandro; Fosso, Olav B (Peer reviewed; Journal article, 2021)Short-Term Hydrothermal Scheduling (STHS) is a classic problem in power system operation where the aim is to decide the dispatch of both thermal and hydroelectric units. This problem is complex due to its non-linear ... -
Simplification algorithms for large-scale power system transmission grids
Kruijer, Tomas (Master thesis, 2015)The simulation of large-scale power system models including transmission grid representations is limited by available computation power and time. Therefore, the reduction of transmission grid models is of paramount importance. ... -
Small-signal modeling and parametric sensitivity of a virtual synchronous machine in islanded operation
D'Arco, Salvatore; Suul, Jon Are Wold; Fosso, Olav B (Peer reviewed; Journal article, 2015)The concept of Virtual Synchronous Machines (VSMs) is emerging as a flexible approach for controlling power electronic converters in grid-connected as well as in stand-alone or microgrid applications. Several VSM implementations ... -
Smart Meters: Basic Elements in the Development of Smart Grids
Martinez Parrondo, Yago (Master thesis, 2011)The necessity of a revolution in the electrical system is obvious, and smart meters will be the solution. The development of smart grids will be built over the new electronic measuring devices, which imply a challenge for ... -
Spenningssammenbrudd i Midt-Norge
Fitje, Erlend (Master thesis, 2007)I Midt-Norge er det i dag et stort kraftunderskudd, og på grunn av økende industrilast i regionen forventes det at underskuddet stiger i årene som kommer. Det finnes planer for å etablere ny produksjon i området, men ... -
Stabilitetsanalyse ved integrasjon av Midtfjellet Vindpark i kraftsystemet
Singelstad, Håvard (Master thesis, 2009)Samandrag Sunnhordland Kraftlag (SKL) ynskjer å undersøkja integrasjon av Midtfjellet Vindpark (MVP) på 150 MW i kraftsystemet, spesielt integreringa i 66 kV-nettet og endringa som er pålagd i nettet. Det er i konsesjonen ... -
Stabilitetsanalyser ved integrasjon av småkraft i regional- og distribusjonsnettet.
Bakkejord, Sigurd (Master thesis, 2011)Forventninger om høyere kraftpris og et generelt økende effektbehov, i tillegg til økte muligheter for politisk aksept og tilskudd, gir økt interesse for å etablere nye fornybare produksjonskilder i Norge. Et gradvis økende ...