Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Development of an Analysis Program for Small Horizontal Wind Turbines Considering Side Furling and Optimal Torque Scheduling

사이드 펄링과 최적 토크스케줄을 고려한 소형 풍력터빈 해석 프로그램 개발

  • Jang, Hyeon-Mu (Department of Advanced Mechanical Engineering, Kangwon National University) ;
  • Kim, Dong-Myeong (Department of Advanced Mechanical Engineering, Kangwon National University) ;
  • Paek, In-Su (Division of Mechanical and Biomedical, Mechatronics, and Materials Science and Engineering)
  • 장현무 (강원대학교 기계융합공학과) ;
  • 김동명 (강원대학교 기계융합공학과) ;
  • 백인수 (강원대학교 기계의용.메카트로닉스.재료공학부)
  • Received : 2017.12.04
  • Accepted : 2018.04.20
  • Published : 2018.04.30
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Abstract

A program to design a small capacity wind turbine blade is proposed in this study. The program is based on a matlab GUI environment and designed to perform blade design based on the blade element momentum theory. The program is different from other simulation tools available in a point that it can analyze the side-furling power regulation mechanism and also has an algorithm to find out optimal torque schedule above the rated wind speed region. The side-furling power regulation is used for small-capacity horizontal axis wind turbines because they cannot use active pitch control due to high cost which is commonly used for large-capacity wind turbine. Also, the torque schedule above the rated wind speed region should be different from that of the large capacity wind turbines because active pitching is not used. The program developed in this study was validated with the results with FAST which is the only program that can analyze the performance of side-furled wind turbines. For the validation a commercial 10 kW wind turbine data which is available in the literature was used. From the validation, it was found that the performance prediction from the proposed simple program is close to those from FAST. It was also found that the optimal torque scheduling from the proposed program was found to increase the turbine power substantially. Further experimental validation will be performed as a future work.

Keywords

References

  1. World Energy Council, Wind Energy Resources 2016, 2016.
  2. Korean Agency for Technology and Standards, KS C 8570 : 2015 Small wind turbine, 2015.
  3. Small Windturbine Engineering Center of Kangwon National University, Backgrounds of technical development enterprise for small windturbine engineering, http://winteam.kangwon.ac.kr/index.php?mp=4_2, accessed 2017-08-10.
  4. Yoon, J. Y., Paek, I. S., and Yoo, N. S., Development of an aerodynamic design program for a small wind turbine blade, Journal of the Korean Solar Energy Society, Vol. 33, No. 1, pp. 40-47, 2013. https://doi.org/10.7836/kses.2013.33.1.040
  5. Yoon, J. Y., A Study on the aerodynamic blade design and verification for small horizontal axis wind turbines, Master dissertation, Kangwon national university, 2013.
  6. Kim, Y.J., Al-Abadi, A., and Delgado, A., Strategic blade shape optimization for aerodynamic performance improvement of wind turbines, ASME Turbo Expo 2016, Jun. pp. 13-17, 2016.
  7. Joseph, S., Juliane, P., David, M., George, P., Christian, O. P., and David, G., Aeroelastic Simulation of Multi-MW Wind Turbines Using a Free Vortex Model Coupled to a Geometrically Exact Beam Model, Journal of Physics : Conference Series 753, 2016.
  8. Jonkmanm J. M. and Buhl, M. L., Fast User's Guide, NREL, 2005.
  9. Anflux, Omega softWT, http://www.anflux.com, accessed 2017.11.5.
  10. Hansen, M. O. L., Aerodynamics of Wind Turbines 2nd Ed., Earthscan, London, 2008.
  11. Manwell, J. F., Mcgowan, J. G., and Rogers, A. L., Wind energy explained-Theory, Design and Application, WILEY, London, 2002.
  12. Viterna, L. A. and Corrigan, R. D., Fixed Pitch Rotor Performance of Large Horizontal Axis Wind Turbines, NASA Lewis Research Center, 1982.
  13. Bergey Windpower, Excel 10 kW Specification Sheet, Bergey, USA, 2011.
  14. Jonkman, J. M. and Hansen, A. C., Development and Validation of an Aeroelastic Model of a Small Furling Wind Turbine, NREL/CP-500-39589, 2004.
  15. Corbus, D., Meadors, M., Small Wind Research Turbine - Final Report, NREL/TP-500-38550, 2005.
  16. Jang, H..M.., Kim, D. M., and Paek, I. S., An Aerodynamic Design of Small Wind Turbine Blade based on Low-tip Speed Ratio Optimization, The Korean Society for New and Renewable Energy 2017, p.135, Sept 06, 2017.