Between 180 - 350 Rpm it's running safe. No high centrifugal forces. 600 Rpm is dangerous.
The amount of sunwheel teeth here is 37 to keep the hub compact. Disc diam. is 280 mm.
More or less teeth gives the same result to move the blades synchronous.
The generator here has 5 kg copper 9 coils and 2x 12 magnets to make 800 watt ( Hugh Piggott 3 meter windmill )
With a microcontroller you can switch easy to change the behavior with software, of rpm and charge power.
But it is not a must . The Rpm counter has a variable voltage output ,use that as a switch command trigger between the desired Rpms.
Tension level active.
The actuator makes steps of 0,5 seconds.