Control of Variable Speed Variable Pitch Wind Turbine at Above and Below Rated Wind Speed

Table 3

Comparison of different control strategy based on two-mass model using FAST simulator.

Control strategy	ISC	ATF	SMC	ISMC
Std. () (kNm)	9.629	23.03	21.84	13.59
Max. () (kNm)	45.62	130.8	131.4	73.4
Std. () (kNm)	0.142	0.369	0.252	0.198
Max. () (kNm)	1.010	2.500	1.690	1.260
(%)	69.73	72.87	76.89	76.26
(%)	85.59	85.06	96.78	96.56