A Critical Review on Wind Turbine Power Curve Modelling Techniques and Their Applications in Wind Based Energy Systems

Table 1

Expressions of parametric models.

Model	Expressions of and	Parameters
Linear [12]		—
Quadratic [25]		—
Binomial [30]
Cubic [31]
Weibull based [6]
Double exponential [32]		and to be estimated
4PL [1, 33]		() From manufacturers’ curve [33]; () Parameters obtained by evolutionary techniques for SCADA data in [1]
4PL [34, 35]		= minimum asymptote; = Hill slope; = inflection point (point of curve where the curvature changes direction); = maximum asymptote; (parameters obtained by evolutionary techniques)
5PL [24, 35, 36]		= minimum asymptote; = Hill slope; = inflection point (point of curve where the curvature changes direction); = maximum asymptote; = asymmetry factor; (parameters obtained by evolutionary techniques)