DIY Windmill controller Demo

Windmill controller KickStart and Boost demo V5 With a PMDC motor/generator you can reduce the cut-in speed electronically by applying a small current to 'kick-start' it by overcoming the inertia needed to get to rotate. This video demonstrates the different modes or stages in operation. Without this controller the windmill would just start spinning when enough wind speed would start spinning the blades, in this case about 26km/h. It would then spin at about 200-300 rpm and produce some amount of power.

With the kick start, the signal from an anemometer tells the controller, there's 14-16 km/hr wind, if you help me to start rotating I'll be able to sustain spinning with reduced power. It applies about 6V at 0.5A to the motor and it starts spinning the blades making them easier to turn by wind (overcoming the cut-in resistance that has to be overcome. It spins at about 100 rpm or more and while not producing enough volts to charge batteries or start the grid-tie inverter, the controller gives it a 'boost voltage' of 5 VDC. As the wind spins it little faster, and produces about 11.5V, the controller cuts out the KickStart and Boost and it now operates normally, still at lower wind spped than without it.

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