At any windspeed, there is certain amount of energy available. You cannot apply this to just any load, otherwise it would just stall the turbine. Therefore the idea is to try and match the load to the turbine's output. PWM could operate like a switch, switching on and off the load, e.g. a heating element. If done at the right duty cycle, it should be possible to make it work. And I dont think it should require any very fancy electronics - perhaps power Mosfets?
I was hoping someone would already have done something similar and be able to share experiences.
And the turbine output could perhaps be much higher volts - 400-600V.
I am aware of a simpler scheme that switches in and out loads depending on the turbine rpm. But I was hoping for something better...
