Philippe wrote to me with this link:
Hi, I have my own Piggott wind turbine for 2 years, a 180cm 350W. I had some trouble about the way a regulator adapts energy to a battery charger or a injector. So I made my own regulator, which is a real MPPT for wind turbine and costs less than 50€. May be you will be interested, so here is the link :
Best regards, Philippe.
Here is the manual at Github philippedc/Arduino-Uno-Wind-Turbine-MPPT-Regulator
There are many regulators on the market. However they are mostly adapted for solar panels only, and if the curve of delivered power is similar, the way to regulate is different – to resume solar panels use buck converter, wind turbines use boost converter. Many are not MPPT, the PWM regulators are very less efficient than MPPT, and also specific wind turbine MPPT regulators are very expensive.
So, It can be a very good project to self-build our own regulator, after having been built our own Piggott wind Turbine