Battery model removed from MSL 4.1 and no conversion script

[Walshest]

Hi,

I have just updated some internal libraries and have an issue w/ my models as a model has been removed and I cannot find a conversion script for the MSL (to version 4.1):

This model is no longer in the version 4.1:

• https://github.com/modelica/ModelicaStandardLibrary/blob/v4.0.0/Modelica/Electrical/Machines/Examples/ControlledDCDrives/Utilities/Battery.mo

Can there please be a conversion script provided?

This is the PR which deleted the model: - a535d27

[Walshest]

@christiankral Would you be able to look at this and either provide a conversion or return the model?

[christiankral]

It think we have two aspects here:

1. The battery model Modelica.Electrical.Machines.Examples.ControlledDCDrives.Utilities.Battery solely consisted of a constant voltage source and a constant internal resistance. So there is no real "need" for such a model. @AHaumer I guess is the reason why this model has been removed.
2. The package Modelica.Electrical.Batteries has been added. The battery models provided in this package allow a lot of flexibility in considering battery behavior. So there was no need to keep the simple battery model in the Examples package of Machines.

[christiankral]

On my opinion a conversion script is not required as models provided in an Examples package may be modified or removed anytime.

[Walshest]

On my opinion a conversion script is not required as models provided in an Examples package may be modified or removed anytime.

Thanks for the quick feedback.
As this is a component model w/in an Examples folder, then I think a conversion script should have been available.

However as you mentioned it was a very simple component. I have duplicated it from the MSL 4.0 and inserted into our own internal library and our models work again.

Regards,
Stefan

[beutlich]

On my opinion a conversion script is not required as models provided in an Examples package may be modified or removed anytime.

Thatis correct.

[AHaumer]

Thanks for the explanation @christiankral
In 2022 @dietmarw suggested to remove the battery model (consisting of a contant voltage source and an inner resistance) to avoid confusion with the Modelica.Electrical.Batteries package.
The "battery" model was part of the examples package - so no conversions script needed.
@Walshest for your convenience you'll find attached the zipped "old" battery model.

Battery.zip

[HansOlsson]

On my opinion a conversion script is not required as models provided in an Examples package may be modified or removed anytime.

Thatis correct.

And included in #4698