# Wind Turbine Thomas Grothe. Wind to Mechanical P wind = (1/2)ρ air Av 3 tip speed ratio = blade tip speed / wind speed Optimal tip speed ratio when t.

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Wind Turbine Thomas Grothe

Wind to Mechanical P wind = (1/2)ρ air Av 3 tip speed ratio = blade tip speed / wind speed Optimal tip speed ratio when t w = t s (this is when greatest possible amount of energy in the wind is used to rotate to rotor) t s = 2π/(nω) t w = x/v

Mechanical to AC Alternator uses induction to make 3-phase AC

AC to DC diode – allows current to go in only one direction

Battery apply a voltage that is higher than the battery’s output voltage charge controller puts extra current through something else industrial forklift batteries

120 V AC 60 Hz Output inverter – DC to AC

References http://www.windstuffnow.com/main/3_phase _basics http://www.windstuffnow.com/main/3_phase _basics http://www.otherpower.com/otherpower_wi nd.html http://www.otherpower.com/otherpower_wi nd.html http://www.scoraigwind.com/ A Wind Turbine Recipe Book – Hugh Piggott

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