A wind mill farm is easy to connect for power adding.
Normally, to easy the connection, all the mills should have the same power and wind characteristics.
There are some fellows in South America doing small wind mills farms with truck radiator fan motors in parallel and in series.
There is one farm that has 24 of them in a ridge with 8 meters wood poles feeding his house -- charging 200 volts battery bank and from there a converted UPS producing 115 volts @ 3 KW.
All mills, each producing about 100 -150 watts average, connected in 2 strings of 12 wind mills in series, then both strings in parallel.
You can put them in series or in parallel or both at the same time.
Depending on the mills, one can add them in parallel via the rectifying diodes if the wind mills are AC Volts, or even with isolating diodes to add power in parallel to the load.
In series, I need to know the mills to show how to connect them properly and to avoid power feed back to those generating low power.
I do not have software to show you sketches.
Nando