Ulltand

Yes but I was a bit unclear, this test is with standard regualtor (1 st one not mppt). The MPPT i have has a boost up of 14 V on paper from what i learned. That would mean it need wind speed of around 11 m/s to start charging a 24 V system. Far away of 2,5 m/s from what they promise. But then again there is very little enery in 2.5 m/s wind but at 7 m/s it would be great to get something out of the system. Thinking of if more expensive generators would make a differens? Perhaps the design of coils and magnets are better?

Jus adding a pic of the inside and short clip running it with an electric drill Marsrock the movie.mp4

Hello I opened the the first body and found some oxide on the tow contact, pic 1. After cleaning it (reduced impedance by at least 1,5 ohm) i did a test with a 12 V batteri and *non* mppt regulator. When AC voltage exceed battery voltage the reguator starts charging. Problem is that this would require wind speed of about 10m/s. For a 24 V system quite much higher. But with the MPPT reguator that will boost the voltage (on paper) i guess about 11m/s. Still this is way far from what they say in the specs " start charging in windspeed over 2,5 m/s" Is this a comercial thing or is other manufactures that can do this?

Can I install higher nominal power on PV-side of the regulator? IE will it burn or just flat out charging at maximum rated power?

My guess, 50%?

Thanks a lot for your input! I'm a mechanical engineer, so my understanding of the schematic is a bit limited, as you suggested. The batteries I'm using are lead AGM, which I forgot to mention. I also bought a small 12V lead battery to test the setup at that voltage. However, the problem is that during this time of the year, most days are without wind. If the generator has a pickup device for voltage, shouldn't I have had a higher reading than 18V in very good wind conditions? I can manually spin the propeller to simulate wind speeds of about 7 m/s momentarily. Would that be enough for testing purposes? Or does the system need some time to react to charging?"

Might be the same inside?

Thats whats puzzels me too. Is there some kind of a booster in the MPPT? When I look around most turbins are rated 12 OR 24 volt. This one is rated both. Is it even possible?

Hello everyone! I have built a new small off grid system: -Wind generator 600 W 3-phase AC 12/24V. MPPT regulator 12/24V -1000 W PV-cells with dedicated MPPT regulator. Working well. -24 V battery bank of 9,5 kwh. Problem is that I cant get any charging current from wind plant. I have replaced both the turbin and the MPPT-regulator but it is still not working. Yesterday we had good winds here in Stockholm (peak around 15m/s) with this readings. Peak AC voltage 18 V. Average 7 V (L1-L2/L1-L3/L2.L3) System voltage 25, 8 V No AC current No DC current MPPT regulator has LED indication that indicate charging and battery connection. Since this is my second turbin I start to think that it might not be possible to run it on a 24 V system ? Even if its sold and labeled as such. Any input apariciated! My best Patrick