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Registered Member #190
Joined: Fri Feb 17 2006, 12:00AM
Location:
Posts: 1567
I wanted to share this with members here as this project is getting closer to an end. I built a wind turbine from scratch, which is capable of generating over 1.5 kw/hr in 25 mph winds. The ac generated is converted to DC and passes through a shunt regulator (sound familiar). From there the power goes through an inverter that matches the load with the power available at a given wind speed. Here is a link to the project. Here is a link to a youtube video showing the turbine spinning near 500 rpm.
Registered Member #1062
Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529
Awesome! very neat and professional. Won't the tree's hurt the performance? I would suggest putting a margin on the left side of your site, it makes reading difficult.
Registered Member #190
Joined: Fri Feb 17 2006, 12:00AM
Location:
Posts: 1567
Ideally, I should have no trees, but this is what I have at my home. Even if I cut my own trees, which I won't, there are plenty of trees in the neighborhood. Still, it spins really nicely in the winter when the leaves are gone.
What do you mean by adding a left margin? Can you be more specific with what I should do to make it easier to read? How will a left margin help?
Registered Member #16
Joined: Thu Feb 02 2006, 02:22PM
Location: New Wilmington, PA
Posts: 554
Very nice. I'm considering something a bit smaller to keep a large battery bank topped off in the not-very-sunny climate of NW PA. The lake breeze is almost always present, making wind a very viable option.
I also would need to get some serious altitude to get above the trees. Luckily, I should have a >50' antenna tower available for mounting :)
Banned on 3/17/2009. Registered Member #487
Joined: Sun Jul 09 2006, 01:22AM
Location:
Posts: 617
That's awesome. Did you incorporate some sort of lightning protection? I know the pole is obviously grounded since its in the ground hehe, but is their a possibility of a strike entering the house through power cables? Seems unlikely but since HV is unpredictable you never know.
Registered Member #190
Joined: Fri Feb 17 2006, 12:00AM
Location:
Posts: 1567
Tom,
Lightning is always a problem. The tower is grounded by the eight cables. In addition, there is #4 copper wire at the bottom connected to an 8' buried copper grounding rod. If the pulse got through it would probably blow the inverter. I have a surge protector on my Mains for whatever good that will do.
If I know ahead of time that a lightning storm is coming I will just lower the tower. I've heard various suggestions. The trees are the tallest so they should get struck first. Some have suggested putting up a lightning rod, but this could actually draw the lightning to my property when it otherwise would strike a tree.
I'm open to suggestions for better lightning protection.
Registered Member #16
Joined: Thu Feb 02 2006, 02:22PM
Location: New Wilmington, PA
Posts: 554
Don't count on those trees acting as lightning rods. I have a 16' vertical antenna in my back yard that is insulated from ground by a 2' fiberglass base. The antenna has been struck by lightning twice, while the 60' trees surrounding it on all sides (within 50 feet) have only taken 2 themselves.
Banned on 3/17/2009. Registered Member #487
Joined: Sun Jul 09 2006, 01:22AM
Location:
Posts: 617
The trees have much more resistance and probably look much shorter electrically. The difference in height probably makes a lot less difference compared to the conductivity. If that isn't obvious.
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Homemade Wind Turbine
