| Type: | Package |
| Title: | Tool to Fit Wind Turbine Power Curves |
| Version: | 0.2 |
| Date: | 2022-04-30 |
| Author: | Neeraj Bokde, Andres Feijoo |
| Maintainer: | Neeraj Bokde <neerajdhanraj@gmail.com> |
| Description: | Provides a tool to fit and compare the wind turbine power curves with successful curve fitting techniques. Facilitates to examine and compare the performance of a user-defined power curve fitting techniques. Also, provide features to generate power curve discrete points from a graphical power curves. Data on the power curves of the wind turbine from major manufacturers are provided. |
| Imports: | methods, readbitmap, grid |
| License: | GPL-2 | GPL-3 [expanded from: GPL] |
| URL: | https://www.neerajbokde.in/viggnette/2021-10-14-WindCurves/ |
| Encoding: | UTF-8 |
| LazyData: | true |
| RoxygenNote: | 7.1.2 |
| Suggests: | knitr, rmarkdown |
| VignetteBuilder: | knitr |
| NeedsCompilation: | no |
| Packaged: | 2022-04-30 17:30:43 UTC; mayur |
| Repository: | CRAN |
| Date/Publication: | 2022-05-01 04:50:02 UTC |
A fitcurve function
Description
Fits the power curve with Weibull CDF, Logistic and user defined techniques
Usage
fitcurve(data, MethodPath, MethodName)
Arguments
data |
as input data.frame with two columns, i.e., wind speed and wind power |
MethodPath |
as path of a code for user defined curve fitting technique |
MethodName |
as name of the user defined curve fitting technique |
Value
fitted curves and corresponding discrete fitted values
Examples
data(pcurves)
s <- pcurves$Speed
p <- pcurves$`Nordex N90`
da <- data.frame(s,p)
fitcurve(da)
A function to capture Speed Vs Power discrete points from power curve image
Description
A function to capture Speed Vs Power discrete points from power curve image
Usage
img2points(imagePath, n)
Arguments
imagePath |
as Path of a power curve image |
n |
as number of points to be captured from the curve image (default value is 15) |
Value
data.frame with two columns, i.e., wind speed and wind power
Examples
## Not run:
# to import image from system 'extdata' folder.
# user can directly specify the path of the image in 'img2points()'.
imagePath <- system.file("extdata","powercurve.jpeg", package="WindCurves")
img2points(imagePath)
## End(Not run)
Wind Turbine Power Curves
Description
Data on the power curves of wind turbine from four major manufacturers: Siemens, Vestas, REpower and Nordex. Represents wind turbine power output in 'kW' against wind speed in 'metres per second'.
Usage
data(pcurves)
Format
An object of class data.frame with 25 rows and 7 columns.
Source
References
Iain Staffell (2012) https://goo.gl/tD2JW6
Examples
data(pcurves)
v <- pcurves$`Vestad V80`
A function to plot the curves fitted with fitcurve() function
Description
A function to plot the curves fitted with fitcurve() function
Usage
## S3 method for class 'fitcurve'
plot(x, ...)
Arguments
x |
is object returned by fitcurve() function |
... |
Additional graphical parameters given to plot function. |
Value
Plot the curves fitted with fitcurve() function
Examples
s <- pcurves$Speed
p <- pcurves$`Nordex N90`
da <- data.frame(s,p)
x <- fitcurve(da)
plot(x)
A Validate.curve function
Description
Compares the performance of curve fitting techniques fitted in fitcurve() function
Usage
validate.curve(x, MethodPath, MethodName)
Arguments
x |
is object returned by fitcurve() function |
MethodPath |
as path of a code for user defined error measure technique |
MethodName |
as name of the user defined error measure technique |
Value
A comparison matrix in terms of various error measures.
Examples
s <- pcurves$Speed
p <- pcurves$`Nordex N90`
da <- data.frame(s,p)
x <- fitcurve(da)
validate.curve(x)