Yes, but I have seen a ton of system that do not use inverters. These seem very expensive and old fashioned as a neighbor has one and every time a storm comes along it fries the thing (he eventually called the company that installed the turbine and told them to come and get the piece of junk.
An induction motor from everything I have read can put out power that can go straight into the grid. Once it turns above the rated speed of the motor an induction motor makes electricity, hence it is always grid ready power because it can only put out when conditions are right.
As for disconnect, once there is no current in to an induction motor the thing shuts off because there is no electricity to create the magnetic field meaning no electric output. Kind of hard to fry someone when it won't make power once the feed is cut.
This is what I have found so far on my own and maybe all the other resources were wrong but I some how doubt it. Like I said my main questions are if there is a bunch of stuff you would need to do to the motor and if the motor I have from and old junked out grain bin drying fan would work.
Anyone out there been around induction motors made into generators, your help here would be greatly appreciated.