12V Wind Turbine - Voltage question

[owen_a]

I guess a cheaper half way house could be to have a method of steering it off the wind with the vane when the speed gets excessive

My turbine actually does this. If the wind gets to high, it steers it out of the wind, and if the blades rotate to quickly, the electromagnetic brakes kick in.

 

[sophiecentaur]

My turbine actually does this. If the wind gets to high, it steers it out of the wind, and if the blades rotate to quickly, the electromagnetic brakes kick in.

IS the steering done electrically or with some mechanical system? Sounds good.

 

[owen_a]

It's done mechanically, I'm presuming by the design of the Wind Vane since it has a gap in the centre of it. Probably aerodynamically built that way.

 

[Rive]

Depends what your main concern is.

Max out the power available from the given turbine?
Without appropriate load the turbine is overspeeding. With a well matched load it'll not overspeed and might give its rated power.
I might be wrong but I think this ~ covers the issues mentioned by owen_a earlier.

 

[jim hardy]

I must say, feathering is a lot safer feeling than electric braking but it's a much more complicated mechanism.

Hmmmm don't know why i stumbled back in here.

a clever mechanical engineer could design a blade root that's pulled inward by a spring and engages a spiral track ;
as centrifugal force hurls it outward overcoming the spring it rotates in the helix feathering the blade

automatic, Henry Ford simple, and no computer required .

 

[sophiecentaur]

Centrifugal regulators can be good but not easy to make without a lathe etc.. a bit of electronics can be put together with stuff out of the drawer.
And where am I going to get a clever Mech Eng at this time of night? [emoji4]