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

Figure 7

(a) Step wind speed; (b) pitch angles using different functions in sliding mode; (c) rotor speeds using different functions in sliding mode; (d) output powers using different functions in sliding mode.

(a) Step wind speed

(b) Pitch angles using different functions in sliding mode

(c) Rotor speeds using different functions in sliding mode

(d) Output powers using different functions in sliding mode