This a controller block used for modular compressor models as
presented in AixLib.Fluid.Movers.Compressors.ModularCompressors.
The controller block consists of simple PID controllers for each
compressor and no further control strategy is implemented yet.
However, these PID controller are only initialised a nd activated if
no external controller is provided (i.g. if useExt =
false
).
If the controller block is implemented, appropriate values must be applied for all parameters describing the PID controller. Furthermore, a sensible control strategy must be applied to determine the set signals of the compressors if more than one compressor is used.