Homebrewed Electricity > Wind
Active Pitchcontrol
midwoud1:
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/csr2BLBQ6rc
and other uploads Midwoud1 on YouTube
Regards Frans.
bj:
Well Frans, that is awesome. I expect a feeding frenzy for information real soon. I looks like you are measuring rpm
and that provides your control point?
The hollow shaft is adaptable to almost anything.
Well done :)
fabricator:
That is absolutely beautiful, it would be nice to see some video if the back side with the pitch control working. ;)
midwoud1:
http://www.youtube.com/user/midwoud1?gl=NL&hl=nl#p/u/7/xOqan-okQ40
fixitguy:
so simple..the pitch controller.
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