Quote from: lbr on April 20, 2019, 10:43:52 PM

Btw, obvious improvement is missing - u input 500W and get 2kw, why not short-curcuit the whole thing?
Feed the motor not from the grid but from the output.
This way u will still get 1.5kW output and no need for the grid AC!

A 50cm exhaust fan will give 1.5 mph and that is not enough, wind turbine won't work with that, 3 x 1.5 = 4.5 mph might do but you will get very little to bother about. 7 mph or 3 m/s is really the minimum.

https://www.amazon.com/Windmill-DB-400-400W-Turbine-Generator/dp/B00RG2TF6U

SPECIFICATION:

   Rated power: 400W

   Rated speed: 46 ft/s

   Voltage system: 12V

   Cut-in wind speed: 6.7mph

https://www.amazon.com/WINDMILL-Generator-controller-automatic-installation/dp/B01ASNP062?ref_=fsclp_pl_dp_4

SPECIFICATION:

   Rated power: 1500W

   Rated speed: 46 ft/s

   Voltage system: 24V

   Cut-in wind speed: 5.6 mph

https://www.amazon.com/Tumo-Int-3Blades-Generator-Boosting-Controller/dp/B01DNT8AO2?ref_=fsclp_pl_dp_11

Product Parameters

   Model: 1000W 3 Blades
   Rated Power: 1000W
   Maximum Power: 1050W
   Number of blades: 3
   Start-up wind speed: 5.6 mph
   Rated wind speed: 12.5m/s
   Survival wind speed: 40m/s