Solar water pump unit control.

Maiwand

Hi Dear Engineers:

I am glad for being with you professionals, and would you mind discussing about this that what are the main parts of unit control for solar water pumping and what are their functions?

your quick comments will be highly appreciated.

BB.

From your other thread--You are talking about a pretty large solar pumping installation. Here is some information that may help you understand and find vendors in your region that could supply you the necessary design support and hardware:

Some discussions about VFD (Variable Frequency Drives)... Basically a variable frequency inverter with (typically) three phase output. Used to soft start motors (handy for 3 phase well pumps, or pumps with well head starting capacitor) and can also turn an AC motor into a variable speed motor (very handy for pumping applications).

WELL PUMP and Inverter QUESTION
Wind/solar for large scale pumping etc (out of my depth!)
could use knowledge - using Gould jet pump - transfering from 230vAC to ? DC (new link/thread 10/27/2012)
Help required to design off grid system (information on possibilities to connect "standard VFDs direct to solar panels) (new link 1/13/2013)

And from a new poster, link to solar VFD (looks interesting):

VeichiElectric said:
u really should read this article about solar pumps: 
https://www.veichi.org/solutions/water-supply/pump-vfd-or-vsd-for-constant-pressure-water-supply-system.html (updated link)
In your case I wonder if a solar PV inverter would help or not.

-Bill

1/7/2017:
Dave Angelini said:
Grundfos has been doing solar water pumping for 30 years in the Americas and over the seas 
http://us.grundfos.com/about-us/news-and-press/news/Pumped-by-the-Sun.html
They have some really nice plant tours down in the Fresno area of California.

-Bill