Gain Scheduled H Control of Wind Turbines for the Entire Operating Range - Wind Turbine Control and Monitoring - page 88

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Fig. 4.17 System response to a realistic wind profile. Gray lines PI controller, black lines H ?
controller

operating locus. In addition, a classical anti-windup compensation was added to
improve the transient between regions 1 and 3. The PI tuning constants are
K P ð b ¼ 0 Þ¼ 0 : 01882681 s, K I ð b ¼ 0 Þ¼ 0 : 008068634. The function that makes
the gain scheduling is f ð b Þ¼ 1 =ð 1 þ b = b k Þ , where b is the pitch angle and b k ¼
6 : 30236 is the blade pitch angle when the rotor power has doubled. The generator
torque control is the same as in the H 1 approach.