Home  |  Contents 

Windmills
  Forum Index : Windmills         Section
Subject Topic: f n p gridtie windturbine, triple stator Post ReplyPost New Topic
<< Prev Page of 10 Next >>
Author
Message << Prev Topic | Next Topic >>
flc1
Senior Member
Senior Member


Joined: 20 November 2011
Location: New Zealand
Online Status: Offline
Posts: 229
Posted: 17 October 2017 at 3:32am | IP Logged Quote flc1

Gday Ks,
I think its probably low voltage because Im only useing 2x7 ah batterys at 13 volts, if I operate the furling at mid morning or lunchtime while the solar panels are getting good sun ,the actuator works faster ,sounds better because higher voltage from charging,I could put a bigger battery in and/or get another dc-dc converter and run it at about 18 volts,actuator is rated for 12 or 24v


Back to Top View flc1's Profile Search for other posts by flc1
 
flc1
Senior Member
Senior Member


Joined: 20 November 2011
Location: New Zealand
Online Status: Offline
Posts: 229
Posted: 17 October 2017 at 4:18am | IP Logged Quote flc1

it could be near the max rating of the actuator,which is 150 kg,
I never measured what force was reguired to furl it, just did it by guess work.
maybe a combination of both weight and voltage,
Im not too worried about it at this stage as it does the job and is not used much.
I think I will add a dc converter though, they are cheap to buy,
Im just at a stage now where I don't want to spend much more time or money on this turbine,the build is finnished,just want to watch it pump out the watts .


Edited by flc1 on 18 October 2017 at 3:22am
Back to Top View flc1's Profile Search for other posts by flc1
 
flc1
Senior Member
Senior Member


Joined: 20 November 2011
Location: New Zealand
Online Status: Offline
Posts: 229
Posted: 19 October 2017 at 11:56pm | IP Logged Quote flc1

Now that we are finnaly out of winter and into warmer weather we are getting stronger and more regular anabatic winds here during the day. just took some ac meter readings for the 10 days since I installed the dc-dc converter,
and the turbine has been putting out 1kwh per day,
with an average wind speed 4.5 kmh and max average of 14.3 kmh, max gust of 36.8 kmh,
My old dual stator turbines daily output was 380wh per day,
Good Blades Phill.

Edited by flc1 on 20 October 2017 at 1:12am
Back to Top View flc1's Profile Search for other posts by flc1
 
flc1
Senior Member
Senior Member


Joined: 20 November 2011
Location: New Zealand
Online Status: Offline
Posts: 229
Posted: 29 October 2017 at 5:01am | IP Logged Quote flc1

Fitted a 5 amp fuse and this 150w dc-dc boost converter to the power output to the furling actuator,
and set the output voltage to 18v,
Now the actuator works alot better than before,faster and does not sound like its laboring so much at the end of its stroke.
This converter cost $10nzd including postage.




Edited by flc1 on 29 October 2017 at 10:50am
Back to Top View flc1's Profile Search for other posts by flc1
 
kitestrings
Regular Member
Regular Member


Joined: 23 April 2014
Location: United States
Online Status: Offline
Posts: 89
Posted: 29 October 2017 at 1:29pm | IP Logged Quote kitestrings

Seems like a simple low-cost solution.

I'm still not totally satisfied with ours. Our actuator has built in potentiometers, which allows you to set/program preset stops. This seemed good to me, but I'm not sure if it (the resistive track & wiper) is affected by temperature, moisture or if we still just have too much current loss. I find in some conditions it stops just short of its intended set-point(s). I'd tried running of the battery on my truck, right on the thing, and I get the same results, so I'm not sure.
Back to Top View kitestrings's Profile Search for other posts by kitestrings
 
flc1
Senior Member
Senior Member


Joined: 20 November 2011
Location: New Zealand
Online Status: Offline
Posts: 229
Posted: 29 October 2017 at 11:57pm | IP Logged Quote flc1

Hi KS,
yep its simple fix for my problem,but my cable length is a lot less than yours,
Can you increase your voltage and or use more cables to reduce the loss?

Its a bit of a bugger that Daves switch never worked correctly,Im sure it would have eventually,,but Ive gone away from that auto idea now, its just somthing else that could fail.
Im trying to keep it simple.
Back to Top View flc1's Profile Search for other posts by flc1
 
flc1
Senior Member
Senior Member


Joined: 20 November 2011
Location: New Zealand
Online Status: Offline
Posts: 229
Posted: 30 October 2017 at 12:40am | IP Logged Quote flc1

Now the furling works better with the higher voltage

video

Edited by flc1 on 30 October 2017 at 6:56am
Back to Top View flc1's Profile Search for other posts by flc1
 
kitestrings
Regular Member
Regular Member


Joined: 23 April 2014
Location: United States
Online Status: Offline
Posts: 89
Posted: 01 November 2017 at 1:25am | IP Logged Quote kitestrings

That sounds much better. I'd say your off to the races.

I had a few minutes to poke around on ours, and what I've determined is that it is not the voltage to motor/actuator that is the problem now. It is when the control signal is too weak. It is a nominal 12V ignition signal, but it is traveling close to 400' I guess to get from the charge controller to tower base. I've found that if I keep this voltage higher/steady everything works fine. Just got to look at boosting there I'm thinking.

Hellish winds hit our area this week. Widespread outages. Several days of clean up before all are back with power.

Thanks for sharing.
Back to Top View kitestrings's Profile Search for other posts by kitestrings
 
flc1
Senior Member
Senior Member


Joined: 20 November 2011
Location: New Zealand
Online Status: Offline
Posts: 229
Posted: 01 November 2017 at 3:18am | IP Logged Quote flc1

Ha, yep off to the races,
Did you get some good readings from your turbine with those winds?
Could you use a converter to boost your voltage?
Back to Top View flc1's Profile Search for other posts by flc1
 
kitestrings
Regular Member
Regular Member


Joined: 23 April 2014
Location: United States
Online Status: Offline
Posts: 89
Posted: 02 November 2017 at 7:15pm | IP Logged Quote kitestrings

We sat out the roughest stuff; mainly on Sunday night, but most of the day Monday as well. There were winds recorded atop nearby Mt Mansfeld at about 120 mph; I think we had 6-70 here. I had fully furled the turbine with the resistor bank "on", but did not short the windings or tie off the blades. It was rockin' our house.

I had a few day highs jotted down from the charge controllers, A & B watts respectively:

A 2896, B 1350, input 126.2 V
A 2755, B 1265, input 112.2V
A 2660, B 1295, input 117.1V
Back to Top View kitestrings's Profile Search for other posts by kitestrings
 
flc1
Senior Member
Senior Member


Joined: 20 November 2011
Location: New Zealand
Online Status: Offline
Posts: 229
Posted: 03 November 2017 at 4:04am | IP Logged Quote flc1

Wow thats some wicked winds, and impressive outputs.
Back to Top View flc1's Profile Search for other posts by flc1
 
flc1
Senior Member
Senior Member


Joined: 20 November 2011
Location: New Zealand
Online Status: Offline
Posts: 229
Posted: 07 November 2017 at 6:01pm | IP Logged Quote flc1

Still holding together after storm this morning.

video

Edited by flc1 on 07 November 2017 at 7:28pm
Back to Top View flc1's Profile Search for other posts by flc1
 


<< Prev Page of 10 Next >>
In the news...
 
Post ReplyPost New Topic
Printable version Printable version
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You can vote in polls in this forum

Powered by Web Wiz Forums version 7.8
Copyright ©2001-2004 Web Wiz Guide

This page was generated in 0.1094 seconds.
Privacy Policy     Process times : 0, 0, 0, 0.11