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Windfarm Power Optimization Using Yaw Angle Control
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DOI：10.1109/TSTE.2016.2585883.png)
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Abstract
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In this paper, we extend the Park and Jensen wake model to include the effects of yaw angle rotation and wake deflection of wind turbines. We first perform a numerical study to find the optimal values of induction factor and yaw angle of wind turbines in a single column of a windfarm for achieving the maximum total power with wake effects. This study shows that the maximum power in a single column is achieved by keeping the induction factor at one-third and only changing the yaw angle to deflect the wake. We then propose a dynamic programming formulation to maximize the total power production in a windfarm with a single column of turbines using yaw angle as the control variable. We also extend our expressions to a windfarm with multiple rows and columns of turbines and perform simulations on the 3 x 3 and 4 x 4 grid topologies. Our results show that the optimal induction factor for most turbines is quite close to one- third and yaw angle acts as the dominant optimization variable.
Keywords:
Dynamic programming
wind energy
windfarm power optimization
yaw angle control
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