풍력단지 제어를 위한 생산가능 출력에 대한 연구
Study on the Available Power of a Wind Turbine for Wind Farm Control
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초록
A study on the available power of a wind turbine to be used for wind farm control was performed in this study, To accurately estimate the available power it is important to obtain a suitable wind which represents the three dimensional wind that the wind turbine rotor faces and also used to calculate the power. For this, two different models, the equivalent wind and the wind speed estimator were constructed and used for dynamic simulation using matlab simulink. From the comparison of the simulation result with that from a commercial code based on multi-body dynamics, it was found that using the hub height wind to estimate available power from a turbine results in high frequency components in the power prediction which is, in reality, filtered out by the rotor inertia. It was also found that the wind speed estimator yielded less error than the equivalent wind when compared with the result from the commercial code.
Abstract
A study on the available power of a wind turbine to be used for wind farm control was performed in this study, To accurately estimate the available power it is important to obtain a suitable wind which represents the three dimensional wind that the wind turbine rotor faces and also used to calculate the power. For this, two different models, the equivalent wind and the wind speed estimator were constructed and used for dynamic simulation using matlab simulink. From the comparison of the simulation result with that from a commercial code based on multi-body dynamics, it was found that using the hub height wind to estimate available power from a turbine results in high frequency components in the power prediction which is, in reality, filtered out by the rotor inertia. It was also found that the wind speed estimator yielded less error than the equivalent wind when compared with the result from the commercial code.
참고문헌 (6)
- Wind farm models and control strategies, "Sørensen, P.", ~, pp.Risø-R-1464(EN) (2005)
- Wind turbines connected to grids with voltages above 100kV, "Eltra E.", ~, pp.Regulation document TF 3.2.5 (2004)
- T.Petru, "Modeling of wind turbines for power system studies", IEEE Trans. On power systems, 17(4) (2002)
- Nam, Y.S., "Wind Turbine System Control", pp.89~108 (2013), GS intervision
- Feed forward control of estimated wind speed, "van der Hooft E.L.", ECN, ~, pp.ECN-C-03-137 (2003)
- 남윤수, "Feedforward Pitch Control Using Wind Speed Estimation", Journal of Power Electronics, 11(2), pp.211~217 (2011), 전력전자학회