Feedforward Feedback Pitch Control for Wind Turbine Based on Feedback Linearization with Sliding Mode and Fuzzy PID Algorithm

Figure 9

(a) Pitch angles using different controllers under step wind speed; (b) rotor speed using different controllers under step wind speed; and (c) output power using different controllers under step wind speed.

(a) Pitch angles using different controllers under step wind speed

(b) Rotor speed using different controllers under step wind speed

(c) output power using different controllers under step wind speed