Browsing Institutt for elkraftteknikk by Subject "VDP::Elkraft: 542"
Now showing items 1-12 of 12
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Implementing flexibility into energy planning models : Soft-linking of a high- level energy planning model and a short-term operational model.
(Journal article; Peer reviewed, 2020)The operation of electric and heat grids alike is complicated due to the dynamic demand, with the increasing penetration of renewable energy sources adding to the problem. In order to improve the integration of variable ... -
An Innovative Hardware-In-the-Loop Rig For Linear Power-Take-Off Testing
(Peer reviewed; Journal article, 2021)This paper describes the activities related to the design, manufacturing and commissioning of an innovative Hardware-In-the-Loop test rig for linear Power Take-Off testing within the Horizon 2020 IMAGINE project. The rig ... -
Peer-to-Peer electricity trading in an Industrial site: Value of buildings flexibility on peak load reduction
(Peer reviewed; Journal article, 2021)Local electricity markets and peer-to-peer (P2P) trading schemes in buildings have recently gained importance as an efficient way to incentivize energy flexibility (e.g. consumer demand response or storage) and to share ... -
Performance Comparison of Offline and Real-Time Models of a Power Take-Off for Qualification Activities of Wave Energy Converters
(Chapter, 2021)A Power Take-Off (PTO) is responsible to convert wave to electrical power and is one of the core sub-systems of any Wave Energy Converter (WEC). As result, assessing the PTO performance is one of the key aspects of the WEC ... -
Reference data set for a Norwegian medium voltage power distribution system
(Peer reviewed; Journal article, 2023)This article describes a reference data set for a representative Norwegian radial, medium voltage (MV) electric power distribution system operated at 22 kV. The data set is developed in the Norwegian research centre CINELDI ... -
Regional Effects of Hydrogen Production in Congested Transmission Grids with Wind and Hydro Power
(Chapter, 2017)Some of the best wind and natural gas resources in Norway are located in rural areas. Hydrogen can be produced from natural gas in combination with carbon capture and storage to utilize the natural gas resources without ... -
Sizing of Hybrid Energy Storage Systems for Inertial and Primary Frequency Control
(Peer reviewed; Journal article, 2021)The exponential rise of renewable energy sources and microgrids brings about the challenge of guaranteeing frequency stability in low-inertia grids through the use of energy storage systems. This paper reviews the frequency ... -
Students Perceptions on Teaching Design of Power Electronics Using Student-Response Systems: Thematic Content Analysis of Interviews
(Peer reviewed; Journal article, 2022)The paper presents an empirical study conducted in the context of an advanced power electronics design course in a technical university. In selected points of the lectures formative assessments were introduced and supported ... -
Sufficient Conditions for Robust Frequency Stability of AC Power Systems
(Peer reviewed; Journal article, 2020)This paper analyses the frequency stability of ac grids in the presence of non-dispatchable generation and stochastic loads. Its main goal is to evaluate conditions in which the system is robust to large, persistent active ... -
The impact of protection system failures and weather exposure on power system reliability
(Chapter, 2019)Extreme weather is known to cause failure bunching in the electrical transmission system. However, protection systems can also contribute to the worsening of the system state through spontaneous, missing or unwanted operation ... -
The impact of time-frequency estimation methods on the performance of wave energy converters under passive and reactive control
(Journal article; Peer reviewed, 2018)A number of wave energy controllers tune the power take-off (PTO) system to the frequency of incident waves. Since real ocean waves are non-stationary by nature and not defined by a single frequency component, the PTO can ... -
Transmission line unavailability due to correlated threat exposure
(Chapter, 2019)Blackouts in the power system are rare events that can have large consequences for society. Successful preparation and prevention of such events calls for models capable of predicting their occurrence. The simultaneous ...