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Proposal of Grid-Connected Small Wind Turbine Simulator Based on Aeroelastic Dynamic Modeling

[+] Author Affiliations
Ryota Kikuchi, Mitsumasa Iino, Makoto Iida, Chuichi Arakawa

The University of Tokyo, Tokyo, Japan

Paper No. FEDSM2013-16504, pp. V01CT26A006; 6 pages
doi:10.1115/FEDSM2013-16504
From:
  • ASME 2013 Fluids Engineering Division Summer Meeting
  • Volume 1C, Symposia: Gas-Liquid Two-Phase Flows; Industrial and Environmental Applications of Fluid Mechanics; Issues and Perspectives in Automotive Flows; Liquid-Solids Flows; Multiscale Methods for Multiphase Flow; Noninvasive Measurements in Single and Multiphase Flows; Numerical Methods for Multiphase Flow; Transport Phenomena in Energy Conversion From Clean and Sustainable Resources; Transport Phenomena in Materials Processing and Manufacturing Processes; Transport Phenomena in Mixing; Turbulent Flows: Issues and Perspectives
  • Incline Village, Nevada, USA, July 7–11, 2013
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5556-0
  • Copyright © 2013 by ASME

abstract

Under a current system, small wind turbines grid-connected are not evaluated efficiently. It leads to problems such as price increase. We developed an experimental simulator for small wind turbine with grid-connection for the evaluation. The requirements of this system are to simulate torque and electric power in a laboratory according to various wind conditions. In this study we use NREL’s FAST, which calculates wind power based on BEM (Blade Element and Momentum theory) for controlling the simulator. For the simulation, an AC motor was connected to a generator of a real wind turbine. The same torque as wind calculated by FAST was given on the connecting shaft by the motor. The simulator enabled the generator to produce electric power like the wind turbine in the field. The results by this simulator well agreed with results only by FAST at constant wind speed. When the wind speed changes we must consider each moment of inertia of each experiment part such as the connecting shaft. We estimated the momentum of inertia of this system and considered the influence on testing results such as rotational speeds. Moreover by comparing the tests in the field the accuracy of this simulation is verified.

Copyright © 2013 by ASME

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