Optimum Power Output Control of a Wind Turbine Rotor

Table 1

Coefficients , , of the approximations to the power coefficient .

Model	Voltolini et al. [10]	Variable pitch operation	Constant speed operation	Variable speed operation
	0.5176	0.5	0.44	0.73
	116.0	116.0	125.0	151.0
	0.4	0.4	0	0.58
	5.0	0	0	0.002
	0	0	0	2.14
	0	5	6.94	13.2
	21.0	21	16.5	18.4
	0.0068	0	0	0
	0.08	0.08	0	−0.02
	0.035	0.035	−0.002	−0.003