new member

[Thomas Fortune]

hello all , I live in Rep of Ireland and as domestic wind turbines are only new to the market here and also very expensive , I decided to look up the web and found G.P.T. the best site to aquire the information i need to build my own turbine , as i done tests on my wind speed Agv. 9.4 mph but i also have a lot of wind turblance from tree's and buildings so i was concidering building a 3 kw. vertical turbine from scratch , as the vertical i am told is better at handling turblance . I am in the process of purching a 3Kw PMA.at the moment and was looking for information on the Blade size ,type ,designe, or any other information on a vertical turbine. Thank Thomas Fortune

[Rob Beckers]

Hi Thomas,

Welcome to Green Power Talk!
As you may have read in another thread I've been searching high and low for a PM alternator. So far with very little (affordable) result. Would you mind publishing where you are getting that 3kW alternator from? Thanks!

As your VAWT project progresses, please open a new thread in the wind or DIY section and let us know more about it. I'm sure many here are interested.

-Rob-

[Thomas Fortune]

Hi rob, you were looking for PMA's.
Well the ones that i am thinking of buying are 500 watt Pma's which are stackable so you can build them up to 3 kw , they have a 22 mm center and weighe 1.5 kg they are made by (YASKAWA ELECTRIC OF JAPAN) but i am buying them from a supplier in england , he has not given me a price of them yet.

Thomas Fortune

[Mark Parsons]

Greetings Thomas,

I am familiar with Yaskawa product. I have used their servo and variable frequency drive products. I didn't know they made PMA's. A quick search of their web site doesn't show a hit under PMA, but their search function doesn't appear very intuitive. Is it a PM servo motor you are planning to integrate as alternator? A catalog or model number will help to determine design characteristics.

Have you settled on your VAWT concept? Savonius or H-rotor type?

Your wind resource at 9.4MPH is similar to mine at my cottage. Not very good. :( 3kW harvested from a 12MPH wind requires a swept area of over 700 square feet. Large... :eek:

Regards,
Mark