You are going to need to do a LOT of reading if you want to build your own. If you are serious about having a wind turbine to power your home, your better off going out and buying a commercial unit unless you are a master at electrical power systems. There are no actual plans that I know of since no one wants the liability but there is plenty of information. I recommend starting with
http://books.google.com/books?id=WeVSAAAAMAAJ&q=wind+turbine+control&dq=wind+turbine+control&pgis=1" and make sure you have a solid foundation of power electronics and control. Including a solid knowledge of PMSMs and SFIMs along with different methods of control them, especially DTC and SVM.
Next you will need to decide what kind of turbine you want (VS,VP), what kind of power output, cut in speed, cut out speed, and you will also need to know a lot about your wind conditions. That is average wind velocities, capacity factors, wind variance, and velocity distribution.
If you need any more info or help let me know, I sort of an expert on the subject.