Another way to reduce or eliminate the stall issue is to increase the air gap in the alternator. In that case the slope remains the same and the entire alternator curve moves to the right. In that case you could potentially eliminate stall, but you would probably like the alternator curve to just touch the turbine curve at the point of furling. To my eye (I happen to have this case graphed) cut-in would then be at 15 mph and furling at 24 mph. Maximum power looks to be about 500 watts. You do, of course, lose all power generation for wind speeds below 15 mph. So, you pay another kind of price.GeoM[ Parent ]
