does anybody here have any experience with wind generators. I am working on a breezy 5.5 grid tied wind generator for a friend of mine.
What kind of specs or patterns did you have on the blade Dr.Bob? Does it have a straight twist like a plane propellor, That sounds like almost fun makin a wind propellor. My current curved lamination project is a straight curve with a 74.5" radius . Iwould think a propellor blade would be more complicated and have a twist in it. Tell me if i'm wrong.Thanks for the reply's guys
The unit is a breezy 5.5 which is indeed a overdriven induction motor. The generator did work and was tied into the grid, all paperwork is complete and the controllers are correct including the notch meter. A friend of mine bought it from a so called dealer in 2008 it worked for about 2 weeks and failed, probably from vibration. It shook and wobbled badly probably from a way out of balance propeller assembly. The dealer came to fix it but broke a propeller blade when he lowered it. He refused to repair the damaged blade and never did anything to help get it back on line.
At this time I am in the process of building a new set of blades out of laminated pine lumber cut to the correct profile as called out on the plans. The new set of blades will be laminated with 2 plys of 6 oz. fiberglass in hopes of keeping them from warping in the future. I am almost ready to glass the blades now. I then will assemble the propeller and balance the thing.
As far as electrical problems go all I can see wrong is the slip ring needs to be repaired or replaced. 1 wire was broken off at the brush probably from vibration, no burns or arcing are visable. A new slip ring will cost $360.00
Bob
The motor appears fine
This wind turbine is called a prarie turbine Breezy 5.5 and is capable of producing 5.5 kw. They do sell kits yet and have sold a lot of them worldwide. Just google it up and you will see what I am working on. The also have a 10kw version now.
I was asked by my friend to build a new set of blades using composite construction, kevlar, carbon graphite and fiberglass over a foam core similar to the construction of new composite aircraft like the rutan designs. I have built my own composite airplane so the blaes should have been a snap.
Dr.Bob
john,
I guess I am just cheap.
Dr.Bob