navitron
 
Renewable Energy and Sustainability Forum
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Anyone wishing to register as a new member on the forum is strongly recommended to use a "proper" email address. Following continuous spam/hack attempts on the forum, "disposable" email addresses like Gmail, Yahoo and Hotmail tend to be viewed with suspicion, and the application rejected if there is any doubt whatsoever
 
Recent Articles: Navitron Partners With Solax to Help Create A More Sustainable Future | Navitron Calls for Increased Carbon Footprint Reduction In Light of Earth Overshoot Day | A plea from The David School - Issue 18
   Home   Help Search Login Register  
Pages: 1 2 3 4 5 [6]   Go Down
  Print  
Author Topic: Controlling a wind turbine  (Read 14395 times)
stephendv
Hero Member
*****
Offline Offline

Posts: 928



WWW
« Reply #75 on: July 15, 2014, 09:21:18 AM »

Poo, looks like they've measured that from their battery controller, not as an MPPT curve.  Notice how the voltage never goes above 56V even though the rpm's increase by 200.
Logged

http://www.casanogaldelasbrujas.com
2.8kW PV, SMA Sunny Island 5048, 5 PzS 700 battery bank, stinky diesel.
Eccentric Anomaly
Sr. Member
****
Offline Offline

Posts: 404


WWW
« Reply #76 on: July 15, 2014, 06:00:56 PM »

Indeed, but it's puzzling, then, why's it producing any power well below battery voltage. Maybe it is an MPPT curve but with a voltage limit to keep the speed reasonably in check when the wind gets strong. Or could it even be a boost-mode DC-DC converter which tops out at the battery voltage?
Logged

He who refuses to do arithmetic is doomed to talk nonsense - John McCarthy.
stephendv
Hero Member
*****
Offline Offline

Posts: 928



WWW
« Reply #77 on: July 15, 2014, 06:03:31 PM »

Just got this as clarification which shows unloaded V and RPM.


* win.png (26.84 KB, 557x249 - viewed 228 times.)
Logged

http://www.casanogaldelasbrujas.com
2.8kW PV, SMA Sunny Island 5048, 5 PzS 700 battery bank, stinky diesel.
stephendv
Hero Member
*****
Offline Offline

Posts: 928



WWW
« Reply #78 on: July 17, 2014, 02:11:17 PM »

Been looking at the site for the turbine and there might also be a good spot for it relatively close to the batteries, so a dual system of batteries + GTI might be possible.  Billi, is this how yours is configured?



* sketch.jpg (95.82 KB, 600x748 - viewed 182 times.)
Logged

http://www.casanogaldelasbrujas.com
2.8kW PV, SMA Sunny Island 5048, 5 PzS 700 battery bank, stinky diesel.
Pages: 1 2 3 4 5 [6]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2013, Simple Machines
SMFAds for Free Forums
Simple Audio Video Embedder
Valid XHTML 1.0! Valid CSS!