If you have just connected a 20W bulb, it's normal that you do not have more than 20W ...
Absolutely not, I explain myself
The generator used is a permanent magnet alternator and not an automobile type alternator
There is no excitation current and therefore no output regulation.
If I had passed 20W, the light bulb would have simply burned
The power produced is intended to charge batteries (in sufficient number not to exceed the maximum load current), so the voltage regulation is done alone.
The only parameter that I could control to choose the load according to the speed of the wind would be the pitch of the propeller (live), but it is much more complicated.
In theory, the wind turbine should be started with the flag position and the angle of the blade changed as it accelerates to the point of maximum power.
At this point, the angle of incidence is close to 6 ° (angle for which the coefficient Portance / Trained is maximum)
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