Most wind generators manufacturers quote a cut in wind speed, and peak power. The one thing that they don't tell you is that it could be spinning away and yet the power produced is wasted until it is above that required to charge the batteries.
Solar controllers regulate the voltages produced to overcome this problem and it is easier to do because of the smaller range of voltages produced in solar panels. MPPT controllers further improves this.
What we need is an MPPT controller for wind generators as well. The standard practice is to run the power produced into the battery and then shunt excess power when the batteries are fully charged.
I am working on a solution to this problem.
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