"The tsr falls very rapidly with load and you will soon come on to the peak of the power curve. As you load more you fall below optimum and if you get things right you should just be approaching stall at the time you need to furl to protect the alternator."
I guess it is over my head and you probly dont begin to understand it completely until you get in to buiding motors. Thanks alot. [ Parent ]
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 ]
