Then there’d be no energy extracted. Outder and inner Ring would just start turning with the blades.
Rings could have additional anchors to make this doable.
I also think this thing is totally bonkers from an engineering standpoint.
Theoretically it could work. One could probably do a nice simulation, but nothing that would make sense to try to engineer or build.
Why the permanent magnets in the wingtips and electromagnetic control of those? I don’t see any reason for this. Just split make both rings into three. A stator ring in the middle and two rigid rotor rings inside and outside, connected to the lower shorter and upper longer blades respectively. Thus a lot of the complexity is gone. Maybe two rings suffice, if one doesn’t mind the additional tether drag.
What I like is the counterrotating turbine idea.
Does any awes concept employ counterrotating turbines with flygen?