Simulating the dynamic behavior of a vertical axis wind turbine operating in unsteady conditions

The present work aims at assessing the reliability of a simulation tool capable of computing the unsteady rotational motion and the associated tower oscillations of a variable speed VAWT immersed in a coherent turbulent wind. As a matter of fact, since the dynamic behaviour of a variable speed turbi...

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Bibliographic Details
Published in:Journal of physics. Conference series 2016-09, Vol.753 (4), p.42012
Main Authors: Battisti, L., Benini, E., Brighenti, A., Soraperra, G., Castelli, M. Raciti
Format: Article
Language:English
Subjects:
Acceleration
Aerodynamics
Algorithms
Angular position
Control algorithms
Gusts
Physics
Powertrain
Reliability analysis
Reliability aspects
Robust control
Rotors
Simulation
Software
Turbulence
Turbulent wind
Vertical axis wind turbines
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Summary:The present work aims at assessing the reliability of a simulation tool capable of computing the unsteady rotational motion and the associated tower oscillations of a variable speed VAWT immersed in a coherent turbulent wind. As a matter of fact, since the dynamic behaviour of a variable speed turbine strongly depends on unsteady wind conditions (wind gusts), a steady state approach can't accurately catch transient correlated issues. The simulation platform proposed here is implemented using a lumped mass approach: the drive train is described by resorting to both the polar inertia and the angular position of rotating parts, also considering their speed and acceleration, while rotor aerodynamic is based on steady experimental curves. The ultimate objective of the presented numerical platform is the simulation of transient phenomena, driven by turbulence, occurring during rotor operation, with the aim of supporting the implementation of efficient and robust control algorithms.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/753/4/042012