From: ham789@netzero.net   
      
   On 12/14/2014 11:52 AM, clare@snyder.on.ca wrote:   
   > On Sun, 14 Dec 2014 13:31:04 -0500, "Jim Wilkins"   
   >  wrote:   
   >   
   >> "New Guy"  wrote in message   
   >> news:M5idnRjNC-ZQTxDJnZ2dnUU7-YGdnZ2d@earthlink.com...   
   >>> On Sun, 14 Dec 2014 08:05:46 -0600, amdx wrote:   
   >>>   
   >>>>   
   >>>>     Have you decided how you are going to regulate the voltage to   
   >>>> properly charge your batteries when you have a wide variance in   
   >>>>    wind speed?   
   >>>>   
   >>>>                                  Mikek   
   >>>   
   >>>     I would purchase a voltage controller like the one that came with   
   >>> my   
   >>>    PV kit (HF).   
   >>   
   >> Be very sure it can handle the maximum unloaded voltage from the   
   >> windmill in a strong wind when the controller stops drawing current   
   >> because the battery is fully charged. The HF solar panel controller   
   >> only barely meets its specifications.   
   >>   
   > A "dump regulator" in addition to the charging regulator can overcome   
   > that by "dumping" the output into a resistive load to absorb excess   
   > output. Use an electric water heater for your "sink"   
   >   
   I did some advising on the electronics for a solar/wind power   
   system for a mountaintop radio repeater.   
   IRRC, there are significant issues regarding keeping the   
   system from tearing itself apart in high wind.   
   Wind direction shifts while the gyro is spinning exert   
   a lot of force.   
   Add some ice, with a chunk chipped off and it   
   rattles itself apart rather quickly.   
      
   They ended up just stuffing the MPPT solar controller and the   
   wind generator into the battery system.  Used a shunt regulator   
   to keep the batteries from overcharging while keeping   
   the propeller speed down.   
      
   Never thought about it before...does a wind generator have   
   a maximum power point load like you have with solar?   
   Is there significant gain to be had modulating the load   
   for maximum power for given wind velocity?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)