ElectricalEngineering.jl
This is a Julia package on electrical engineering based on Unitful and PyPlot. The package ElectricalEngineering.jl is tested with Julia 1.1.0. To install the package, start Julia and hit ]
to switch to the package manager.
add Pyplot Unitful ElectricalEngineering
In order to update to the actual version of GitHub in the package manager, hit ]
and apply:
update ElectricalEngineering
To switch back to the Julia REPL and to start working hit Backspace
.
The module ElectricalEngineering.jl has to be loaded by using ElectricalEngineering
. In order to use all the features of ElectricalEngineering.jl, modules Unitful and PyPlot have to be loaded as well. It is thus recommended to appy:
using Unitful, Unitful.DefaultSymbols, PyPlot, ElectricalEngineering
Features
Phasors
 Function
pol
to generate a complex quantity based on the length and the angle (polar representation)
julia> U1 = pol(2V, pi)
2 + 0im V
julia> U2 = pol(sqrt(2) * 1V, 45°)
1 + 1im V
 Constant
j
representing the imaginary unit equivalent to1im
 Function
phasor
 Plot publication ready phasor diagrams
 LaTeX labeling with absolute or relative rotation of text
 Function
phasorsine
 Function
angulardimension
 Draw arc to indicate angle between phasors
 Chose between different arrow shapes
 Create dimension of phasor
 Function
phasordimension
Circuits and Physics
 Function
∥
 Calculate parallel connections of impedances
 Calculate parallel impedance with or without units
julia> 4Ω∥6Ω
2.4000000000000004 Ω
julia> 4Ω∥(j*4Ω)
2.0 + 2.0im Ω
Inputs and Outputs
 Function
printuln
 Print complex variables (including) units in rectangular and polar form
 Limit output to six significant digits
 Convert printed quantity optionally into a target unit
 Works with scalars and vectors of real or complex quantities
julia> U1 = 300V + j*400V
julia> printuln("U1", U1, kV)
U1 = 0.3 kV + j 0.4 kV
= 0.5 kV ∠ 53.1301°
julia> printuln("real(U1)", real(U1),kV)
real(U1) = 0.3 kV
julia> printuln("U1", U1, V, label="(a)")
(a) U1 = 300 V + j 400 V
= 500 V ∠ 53.1301°

Function
save3fig
 Save one figure in the three file formats
png
,eps
andpdf
 Optionally crop figures
Plotting
 Save one figure in the three file formats

Assign two different color schemes (may be loaded alternatively)

Color scheme
ElectricalEngineering.Tab20bc
based on https://matplotlib.org/users/plotting/colormaps/grayscale_01_04.pdf 
Gray scale scheme
ElectricalEngineering.Gray
based on four gray shadescolorBlack1
,colorBlack2
,colorBlack3
,colorBlack4


Additional light background color
colorBlack5

Different line and marker types
lineStyle1
,lineStyle2
,lineStyle3
,lineStyle4
lineWidth1
,lineWidth2
,lineWidth3
,lineWidth4
,marker1
,marker2
,marker3
,marker4
markerSize1
,markerSize2
,markerSize3
,markerSize4
legendFontSize
 Type
?ElectricalEngineering.Gray
or?ElectricalEngineering.Tab20bc
to see application examples

Assign color schemes to quantities, using either
using ElectricalEngineering.Gray
of gray scale graphics orusing ElectricalEngineering.Tab20bc

Function
removeaxes
 Removes the axes of the active plot

Function
arrowaxes

Function
lengthdimension