Blar i Institutt for marin teknikk på tidsskrift "Journal of Physics, Conference Series"
Viser treff 1-10 av 10
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Drivetrain load effects in a 5-MW bottom-fixed wind turbine under blade-pitch fault condition and emergency shutdown
(Journal article; Peer reviewed, 2016)In this paper, the effect of the blade-pitch fault and emergency shutdown on drivetrain responses in a 5-MW bottom-fixed wind turbine are investigated. A 5-MW reference gearbox with 4-point support is employed and the ... -
Extreme response estimation of offshore wind turbines with an extended contour-line method
(Journal article; Peer reviewed, 2018)The contour-line method is a simplified approach for finding the long-term extreme values by a small number of short-term analyses. It is assumed the response with a return period of T years occurs during a sea-state with ... -
Kalman estimation of position and velocity for ReaTHM testing applications
(Journal article; Peer reviewed, 2018)Offshore wind power research is a rapidly growing field, because of the present climate crisis and increasing focus on renewable energy. Model testing plays an important role in the risk and cost analysis associated with ... -
Main bearings in large offshore wind turbines: development trends, design and analysis requirements
(Journal article; Peer reviewed, 2018)This paper discusses analysis requirements for design and operation of main bearings in modern multi-megawatt offshore wind turbines, motivated by the industry's search for reliable and cost effective main bearing solutions ... -
Model-based fault detection of blade pitch system in floating wind turbines
(Journal article; Peer reviewed, 2016)This paper presents a model-based scheme for fault detection of a blade pitch system in floating wind turbines. A blade pitch system is one of the most critical components due to its effect on the operational safety and ... -
Multiple-degree-of-freedom actuation of rotor loads in model testing of floating wind turbines using cable-driven parallel robots
(Journal article; Peer reviewed, 2018)Model testing of offshore structures in ocean basins has been accepted as a necessary step for the validation and calibration of numerical models, as well as for final design checks in extreme environments. While offshore ... -
Numerical Study on Aerodynamic Damping of Floating Vertical Axis Wind Turbines
(Journal article; Peer reviewed, 2016)Harvesting offshore wind energy resources using floating vertical axis wind turbines (VAWTs) has attracted an increasing interest in recent years. Due to its potential impact on fatigue damage, the aerodynamic damping ... -
Statistical fault diagnosis of wind turbine drivetrain applied to a 5MW floating wind turbine
(Journal article; Peer reviewed, 2016)Deployment of larger scale wind turbine systems, particularly offshore wind turbine, requires more organized operation and maintenance strategies to make it as competitive as the classical electric power stations. It is ... -
Structural Load Analysis of a Wind Turbine under Pitch Actuator and Controller Faults
(Journal article; Peer reviewed, 2014)In this paper, we investigate the characteristics of a wind turbine under blade pitch angle and shaft speed sensor faults as well as pitch actuator faults. A land-based NREL 5MW variable speed pitch reg- ulated wind turbine ... -
The Dimensioning Sea Loads (DIMSELO) project
(Journal article; Peer reviewed, 2018)DIMSELO is a Competence Building for Industry project (KPN), granted by the Norwegian Research Council under the ENERGIX program, which ran from 2013 to 2017. The project's objective was to quantify the consequences of ...