Linear and Nonlinear Schemes Applied to Pitch Control of Wind Turbines

Table 1

Comparisons of different control schemes.

Schemes	Comparison
	Control performance		Practical application
	Steady-state error	Robustness	Complexity	Industrial acceptance
LCNM	Large	Good	Low	Good
NCNM1	Small	Better (with robust compensation); Bad (without robust compensation)	High	Bad
NCNM2	Smallest	Best	Highest	Worst