사이드 펄링과 최적 토크스케줄을 고려한 소형 풍력터빈 해석 프로그램 개발 = Development of an Analysis Program for Small Horizontal Wind Turbines Considering Side Furling and Optimal Torque Scheduling

다국어 초록 (Multilingual 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.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 최적화 및 해석 프로그램
• 3. 블레이드 공력설계 이론
• 4. 프로그램 검증
• 5. 결론
• REFERENCES

참고문헌 (Reference)

1 윤진용, "소형풍력발전기용 블레이드 공력설계 프로그램 개발" 한국태양에너지학회 33 (33): 40-47, 2013

2 Manwell, J. F., "Wind energy explained-Theory, Design and Application" WILEY 2002

3 World Energy Council, "Wind Energy Resources 2016" 2016

4 Kim, Y.J., "Strategic blade shape optimization for aerodynamic performance improvement of wind turbines" 13-17, 2016

5 Corbus, D., "Small Wind Research Turbine - Final Report, NREL/TP-500-38550" 2005

6 Anflux, "Omega softWT"

7 Korean Agency for Technology and Standards, "KS C 8570 : 2015 Small wind turbine"

8 Viterna, L. A., "Fixed Pitch Rotor Performance of Large Horizontal Axis Wind Turbines" 1982

9 Jonkmanm J. M., "Fast User's Guide" 2005

10 Bergey Windpower, "Excel 10 kW Specification Sheet"

11 Jonkman, J. M., "Development and Validation of an Aeroelastic Model of a Small Furling Wind Turbine, NREL/CP-500-39589"

12 Small Windturbine Engineering Center of Kangwon National University, "Backgrounds of technical development enterprise for small windturbine engineering"

13 Jang, H..M., "An Aerodynamic Design of Small Wind Turbine Blade based on Low-tip Speed Ratio Optimization" 135-, 2017

14 Joseph, S., "Aeroelastic Simulation of Multi-MW Wind Turbines Using a Free Vortex Model Coupled to a Geometrically Exact Beam Model" 753 : 2016

15 Hansen, M. O. L., "Aerodynamics of Wind Turbines" Earthscan 2008

16 Yoon, J. Y., "A Study on the aerodynamic blade design and verification for small horizontal axis wind turbines" Kangwon national university 2013