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wind to VFD to water pump


By looper, Section Controls
Posted on Sat Jul 30th, 2005 at 05:06:03 AM MST
Summer Project

I built a test stand to determine if it was practical for a wind turbine to provide power to a common centrifugal type down hole water pump through a VFD.  Most of what I did was to determine if VFD can handle input from the generator. If this sound interesting to anyone let me know.

Justin  
wind to VFD to water pump | 5 comments (5 topical, 0 editorial)

Re: wind to VFD to water pump (3.00 / 0) (#1)
by witapple on Fri Jul 29th, 2005 at 11:12:16 PM MST
(User Info)

Pardon my ignorance but what is a VFD?  I am guessing Variable Frequency Device?


Re: wind to VFD to water pump (3.00 / 0) (#3)
by drdongle (Dr.Dongle1@juno.com) on Sat Jul 30th, 2005 at 05:04:43 AM MST
(User Info)

Variable Frequency Drive
Carpe Vigor, Dr.D
[ Parent ]


Re: wind to VFD to water pump (3.00 / 0) (#2)
by aogden (abogden@sbcglobal.net) on Sat Jul 30th, 2005 at 02:20:41 AM MST
(User Info)

Justin, I found this info on the Franklin website;
http://www.franklin-electric.com/CatalogSubmersible/ConstantPressureControllers.aspx
They offer a variable frequecy drive VFD for pumps under 1 HP single phase. They offer a VFD for 3 phase motors uncommon for residential use though. The limitation is with the >1 HP single phase motors that employ capacitor starting.
Regards, Adrian


Re: wind to VFD to water pump (3.00 / 0) (#4)
by looper on Sat Jul 30th, 2005 at 10:00:07 AM MST
(User Info)

Cool, It would be very easy to do with my setup.  I used 3 phase for everything.  The drive will be able to control the pump so that it will pump the max amount of water given the current power input.

Right now I am int the process of putting the generator on the tower.

Justin

[ Parent ]



Re: wind to VFD to water pump (3.00 / 0) (#5)
by cslarson on Tue Mar 11th, 2008 at 11:46:29 PM MST
(User Info)

I know this was posted a while ago, but I would be very interested in what you learned. There is also the Aerovironment USPC-5000 (and smaller USPC-2000) but it looks like it costs in the range of $5500! I have not found any competing products, but it looks like it is some specialized kind of VFD (voltage frequency drive, ac drive). I have no experience with these devices, but understand that they rectify ac->dc and then use pwm (pulse width modulation) to convert the dc back to ac at varying frequencies. I want to combine the output from a number of wind turbines (each 4m rotors) to power a large (5kw) standard water pump. Is it possible to access the dc (bus?) in the vfd directly?

I would very much appreciate hearing what you discovered.
Carl



wind to VFD to water pump | 5 comments (5 topical, 0 editorial)
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