Re: Wind power estimation


On 16-May-2006, wrote:

Suppose that the electrical power of wind mill follows the model

P = f(v)*(a*cos(w) + b*sin(w)),

where f() is a function, v is wind speed, w is wind direction and a,b
are parameters. Normally in absence of the direction dependency (when
a=b=0) I would estimate f() by dividing wind speeds into several bins
and calculating the average power and speed from each bin and then
interpolating the intermediate points.

How to estimate the function f() and parameters a and b when a and b
are nonzero? Hourly values of electrical power, wind speed and

I'm the author of a nonlinear regression program called NLREG (see
http://www.nlreg.com). If you will e-mail your data to me, I'll be happy to
run it through NLREG for you, and we can see what parameter values it
computes.

--
Phil Sherrod
(phil.sherrod 'at' sandh.com)
http://www.dtreg.com (decision tree and SVM predictive modeling)
http://www.nlreg.com (nonlinear regression)
.