Traction Power Generation with Tethered Wings

  • Roland Schmehl
  • Michael Noom
  • Rolf van der Vlugt
Chapter
Part of the Green Energy and Technology book series (GREEN)

Abstract

A tethered wing can be used in two different ways, to lift payload or to provide traction power. The latter is the basis of several innovative technical applications, such as kite-assisted ship propulsion and pumping-kite wind energy conversion. This chapter presents a theoretical analysis of traction power generation by a tethered wing, with the objective to establish the fundamental relationships between system and operational parameters on the one hand, and achievable mechanical power output on the other hand. In a first step, it is assumed that the instantaneous flight state of the wing can be approximated by the steady equilibrium of aerodynamic and tether forces. The analysis considers controlled flight along an arbitrary predefined trajectory, distinguishing the cases of varying tether length with fixed point anchoring and constant tether length with anchoring at a point moving in the ground plane. Theoretical results are compared with literature. In a second step, the analysis includes the effect of weight and centrifugal acceleration of the wing.

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References

  1. 1.
    Argatov, I., Silvennoinen, R.: Asymptotic modeling of unconstrained control of a tethered power kite moving along a given closed-loop spherical trajectory. Journal of Engineering Mathematics 72(1), 187–203 (2012). doi: 10.1007/s10665-011-9475-3 Google Scholar
  2. 2.
    Argatov, I., Rautakorpi, P., Silvennoinen, R.: Estimation of the mechanical energy output of the kite wind generator. Renewable Energy 34(6), 1525–1532 (2009). doi: 10.1016/j.renene. 2008.11.001Google Scholar
  3. 3.
    Argatov, I., Silvennoinen, R.: Energy conversion efficiency of the pumping kite wind generator. Renewable Energy 35(5), 1052–1060 (2010). doi: 10.1016/j.renene.2009.09.006 Google Scholar
  4. 4.
    Breukels, J.: An Engineering Methodology for Kite Design. Ph.D. Thesis, Delft University of Technology, 2011. http://resolver.tudelft.nl/uuid:cdece38a-1f13-47cc-b277-ed64fdda7cdf
  5. 5.
    Dadd, G. M., Hudson, D. A., Shenoi, R. A.: Determination of kite forces using threedimensional flight trajectories for ship propulsion. Renewable Energy 36(10), 2667–2678 (2011). doi: 10.1016/j.renene.2011.01.027 Google Scholar
  6. 6.
    Houska, B., Diehl, M.: Optimal control for power generating kites. In: Proceedings of the 9th European Control Conference, pp. 3560–3567, Kos, Greece, 2–5 July 2007. http://www.kuleuven.be/optec/files/Houska2007.pdf
  7. 7.
    Loyd, M. L.: Crosswind kite power. Journal of Energy 4(3), 106–111(1980). doi: 10.2514/3. 48021Google Scholar
  8. 8.
    Schmehl, R.: Large-scale power generation with kites. Journal of the Society of Aerospace Engineering Students VSV Leonardo da Vinci March, 21–22 (2012). http://resolver.tudelft.nl/uuid:84b37454-5790-4708-95ef-5bc2c60be790
  9. 9.
    Terink, E. J., Breukels, J., Schmehl, R., Ockels, W. J.: Flight Dynamics and Stability of a Tethered Inflatable Kiteplane. AIAA Journal of Aircraft 48(2), 503–513 (2011). doi: 10.2514/1.C031108 Google Scholar
  10. 10.
    Wellicome, J. F.: Some comments on the relative merits of various wind propulsion devices. Journal of Wind Engineering and Industrial Aerodynamics 20(1–3), 111–142 (1985). doi: 10.1016/0167-6105(85)90015-7 Google Scholar
  11. 11.
    Williams, P., Lansdorp, B., Ockels, W.: Optimal Crosswind Towing and Power Generation with Tethered Kites. AIAA Journal of Guidance, Control, and Dynamics 31(1), 81–93 (2008). doi: 10.2514/1.30089

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Roland Schmehl
    • 1
  • Michael Noom
    • 1
  • Rolf van der Vlugt
    • 1
  1. 1.Faculty of Aerospace EngineeringDelft University of TechnologyDelftThe Netherlands

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