If you are using any wind generator that is currently marketed for the pleasure boat industry and that wind generator has not been modified this will be the result of connecting multiple generators in parallel:

As long as the voltage of the bank of batteries being charged is below the free wheeling voltage* of the generators the generators will charge the batteries in proportion to their output. i.e., #1 gen = 20A #2 gen = 10A then #1 will supply 66% of the total charging current while #2 supplies 33%.

If the voltage of the batteries being charged ever reaches the free wheeling voltage of one of the generators then that generator will not contribute to the charging until the battery voltage falls below the free wheeling voltage again.

free wheeling voltage* is the voltage of the generator measured with it disconnected from the batteries.