Frustrated: How do I connect 2 or more generators/alternators to increase power output?

Aside from the electrical problems others have discussed - you have a another problem you have to face - a non-intrusive design is likely to be very inefficient. Presumably you are going to have some kind of tunnel to avoid the long narrow swinging blades way up in the air, but the tunnel is going to have to be big and obtrusive to p enough air to generate enough electricity and cost a lot more. Putting any kind of grill or screen is going lower the wind pressure available. And you are going to have to swing this structure to face the wind unless you have all of your strong winds from one direction and make it fixed. And it will have to be strong enough to withstand your strongest wind. And low windmills are in much weaker winds than those well clear of the ground and trees.