Oil sucks, wind blows.
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Hi All.I am living in Northwest Holland . Average wind 5-5.5 m/sec . Building windgenerators several years . Have some experience with making blades ( fixed- and passive pitch and active pitchcontrol ) I see that some of you ( Menelaos ) and other friends on Fieldlines are thinking about pitchcontrolled blades . For the time of 3 months I have running a DIY active pitch controlled windgenerator. Must say I am very content about it . It is controlled by an actuator wich can be switched automatic and manual. Blade angle from zero to 90 degrees in 8 seconds. Propeller diam. 290 cm . Controllable max speed 330 rpm . (adjustable) Feathering and electrical brake in case of storm. Generator disc type ( Hugh Piggott design ) 9 coils and 2x 12 neo magnets. 24 volt. I see some advantages : Never overspeed , No overheat stator, No dumpload , No overload of batteries , controllable voltage and amps for inverters for batteries and grid tied ones. No material stress. With extra sensors No voltage controller.http://www.youtube.com/user/midwoud1?gl=NL&hl=nl#p/a/u/1/csr2BLBQ6rcand other uploads Midwoud1 on YouTube Regards Frans. (Attachment Link) (Attachment Link)
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