Slack property Generators

[pigalleg]

Dear community,

I am currently running an OPF over a network featuring different disconnected zones. Just one of them is connected to the slack bus, whereas the rest of them feature only PV generators. By default, pandapower will disable all the elements in the zones without the slack , unless I enable the slack option in at least one generator in these zones.

My impression is that this behavior is not documented in the pandapower's doc. Can someone provide more information about how this slack property is modeled?

Thanks in advance.

Pablo