functions.windpower: Wind Power calculations and statistics
In renpow: Renewable Power Systems and the Environment

Description Usage Arguments Details Value Note Author(s) References Examples

Basic calculations in wind power generation

pow.rho.v3.table(x)
pow.rho.v3(xw)
rho.pT.air(pT)
rho.zT.air(zT)
pow.v3.plot(x)
pow.wind(pw)
v.H(vh)
betz()
cal.vH(calvh)
weibull.plot(xmax,scale,shape)
cdf.plot(rv,xlab,ylab)
fit.wind(xd,vlabel)
pow.class(wc)
power.curve(pc)
prob.power.curve(pc,avg)
wind.energy(pc,Pow,avg)

`x`	a list with possible list(rho= density, v=wind speed and A=cross-section area)
`xw`	list(rho=array of density values,v=array of wind speed values, A=cross-section area)
`pT`	a list(p,T.C,punit)
`zT`	list(z=1000, T.C=20, punit="bar", lapse=6)
`pw`	list with z, array T.C, array v, punit press unit,lapse,yleg,ylabel
`vh`	list with array alpha exponent , and array rough of roughness coeffs
`calvh`	list with list(v1.v2=v1.v2,H1=2,H2=10)
`xmax`	max x value for Weibull
`scale`	parameter
`shape`	parameter
`rv`	data var for cumulative distribution function
`xlab`	label x axis
`ylab`	label y axis
`wc`	wind speed for wind class chart
`xd`	wind data object from two anemometers
`vlabel`	label for graph
`pc`	a list cutin, vrated, cutout, A, v
`avg`	avg wind speed for prop.power.curve and wind.energy
`Pow`	result of power curve and used as argument to wind energy

Basic calculations of wind power

`X1`	result of pow.rho.v3.table is list(X,P)
`X2`	result of pow.rho.v3 is list(rho=,v=,Pow=)
`X3`	result of rho.pT.air is array with c("Pressure(kPa)","Temp(C)","Density(kg/m3)")
`X4`	result of rho.zT.air is list(X,rho)
`X5`	result of v.H is v.v0.exp and v.v0.log
`X6`	result of cal.vH alpha exponent, and array rough of roughness coeffs
`X7`	result of pow.class is list(Pow.x,class.x)
`X8`	result of pow.curve is list(Pow, z,P.rated)
`X9`	result of prob.power.curve is hours in various ranges list(h.cutin,h.cutout,h.rated.nstop, h.run.below.rated)
`X10`	result of wind.energy is list(energy,unit,CF)

Functions used in Chapter 13 of Acevedo (2018)

Miguel F. Acevedo acevedo@unt.edu

Acevedo, M.F. 2018. Introduction to Renewable Electric Power Systems and the Environment with R. Boca Raton, FL: CRC Press. (ISBN 9781138197343)

x <- list(rho=1.225,v=10,A=1); pow.rho.v3.table(x)

x <- list(rho=c(0.9,1,1.1,1.225,1.3),v=seq(0,10),A=1)
X <- pow.rho.v3(x)

x <- list(v=X$v,y=X$rho,Pow=X$Pow,yleg="rho",ylabel="Density(kg/m3)")
pow.v3.plot(x)

x <- list(z=1000, T.C=10, punit="bar")
rho.zT.air(x)
x <- list(z=100, T.C=30, punit="bar")
rho.zT.air(x)

x <- list(z=1000, T.C=c(10,20,30), v=seq(0,30),punit="bar",
          lapse=6,yleg="T.C",ylabel="Temperature (C)")
pow.wind(x)

x <- list(alpha=c(0.1,0.25,0.4),rough=c(0.1,0.4,1.6))
v.H(x)