대기안정도와 난류운동에너지 의존성이 풍력터빈 출력 및 연간발전량 변화에 미치는 영향
Effect of Atmospheric Stability and Turbulent Kinetic Energy Dependence on Wind Turbine Power and Annual Energy Production
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The power production of wind turbines varies based on atmospheric factors, which are external environmental conditions. To present a universal correlation between wind turbine power and external conditions affecting power, the effect of atmospheric stability and turbulent kinetic energy (TKE) on the power performance and annual energy production (AEP) of wind turbines was analyzed. This study was conducted at the Dongbok-Bukchon wind farm (DBWF). Power curves calculated for each atmospheric factor regime revealed that TKE (190 kW–9m/s) exhibited the greatest difference, followed by atmospheric stability (241 kW–11 m/s). The AEP with the change in regime indicated variability of about 1.2 ∼ 4.8% at the study site. Understanding the detailed power performance of wind turbines depending on the regimes of atmospheric factors improves the quality of analysis, enabling more accurate power prediction. The improved power prediction method reduces errors in the AEP calculation process. Finally, it is expected to contribute to the financial certainty of the wind industry.
Abstract
The power production of wind turbines varies based on atmospheric factors, which are external environmental conditions. To present a universal correlation between wind turbine power and external conditions affecting power, the effect of atmospheric stability and turbulent kinetic energy (TKE) on the power performance and annual energy production (AEP) of wind turbines was analyzed. This study was conducted at the Dongbok-Bukchon wind farm (DBWF). Power curves calculated for each atmospheric factor regime revealed that TKE (190 kW–9m/s) exhibited the greatest difference, followed by atmospheric stability (241 kW–11 m/s). The AEP with the change in regime indicated variability of about 1.2 ∼ 4.8% at the study site. Understanding the detailed power performance of wind turbines depending on the regimes of atmospheric factors improves the quality of analysis, enabling more accurate power prediction. The improved power prediction method reduces errors in the AEP calculation process. Finally, it is expected to contribute to the financial certainty of the wind industry.
참고문헌 (9)
- Brower, M., "Wind resource assessment : A practical guide to developing a wind project" (2012), John Wiley & Sons
- The power curve working group’s assessment of wind turbine power performance prediction methods, "Lee, J. C.", National Renewable Energy Lab. (NREL), ~ (2019)
- Antoniou, I., "Wind shear and uncertainties in power curve measurement and wind resources", Wind Engineer, 33(5), pp.449~468 (2009)
- Dorenkamper, M., "Atmospheric impacts on power curves of multi-megawatt offshore wind turbines", Journal of Physics: Conference Series, pp.012~029 (2014), IOP Publishing
- Wharton, S., "Atmospheric stability affects wind turbine power collection", Environ Res Lett, 7(1), pp.014~005 (2012)
- Rareshide, E., "Effects of complex wind regimes on turbine performance", Proceedings American Wind Energy Association WINDPOWER Conference (2009)
- Vanderwende, B. J., "The modification of wind turbine performance by statistically distinct atmospheric regimes", Environ Res Lett, 7(3), pp.034~035 (2012)
- IEC, "Wind energy generation systems–Part 12-1: Power performance measurements of electricity producing wind turbines, IEC 61400-12-1 Standard", International Electrotechnical Commission, ~ (2017)
- St Martin, C. M., "Wind turbine power production and annual energy production depend on atmospheric stability and turbulence", Wind Energy Science, 1(2), pp.221~236 (2016)