it is filling the capacitors up,watching it rise in numbers then fall.When ever you only have enough winds to hover at that 22 mark it has to fire up which means a pause. In high winds you can watch how the numbers fill up and then fall in a identical drain. I know the gust here are not that cookie cutter everytime.Just my theory from my observations...Thats how I thought you guys were smoothing out with the caps as if the cap filled faster than the GTs system it seems it would keep the slower moving system to keep locked on more.. Just kicking things around in my head to see if they are scientifically based at all...
Thats how I did it leam always..only the 22v are linked..Its just to hard with my larger blades to not have a gust that pushes it over the 35 v mark with two turbines and pop the cap(1,22v gts have 2). I have had summer days that the wind was very predictable and then a large gust.... The way I see it.the higher the volts,the more efficient the push and more efficiency... Thats why I think the next step to test is running 2 in series but with a large enough battery bank to ensure overvolts OR try out the larger higher voltage grid ties..Imagine three 500's all in series but a window of 80v-400v.
The main thing I have learned from all this testing over the last 2 years is you MUST let the turbine reach a certain rpm before any load is put on it...It has to catch a certain amount of air to be able to speed up efficiently in gusts with a load on it.
Mine are in parallel. I use 10 ga wire to connect them. It is rare but the gusts caught both of mine in the recalculating state. Neither of them turned on at the same time. With everything I post I would hope by now you would know I do not lie about this stuff. Costs too much too lose.
The reason I put caps parallel on the DC line was to help keep the GTI from turning on and off so quick and causing vibration. My noise level went way down. Side benefit was it absorbed gusts better and I do not overvolt as much. Of course now I have a high wind alarm in my bedroom. that relay is really loud and the red light on the switch board is bright enough to light up the room. Hope it does not stay on too long I might get visitors. Which might be a bad thing. My bed room faces the street.
Well I went back to 24 volt battery tie. With this last wind storm I had so many over voltages about every few minutes all day long. The grid ties got hit so hard they both went over volt and seen voltage climb to 70 volts at times. And the turbines sounded like they were going to take off from my roof. Winds were gusting from 10 right to 40 mph in just 1-2 seconds and went over volt before the GTIs could kick in.
Well Tom, we have had very good luck running our smaller turbines like that last year with no problems. I am still waiting for very big winds to see what results i get from my inverter set up but you have planned a safe way to keep your inverters alive. I will post when i get a day of 40+ winds to see how my new set up holds.
I tried running just the 22-60 volt one and I lose out on low wind power. Also the turbines spin like crazy and make alot of noise in high wind. I have alot more of low wind than high wind here. Also have to add with 24 battery tie both grid ties kick in and I have seen 600 watts at times. So I do not think I should not go to a higher voltage and let the 10.8-30 volt one kick out.
The 2kw is running,4 22 gt's,got the 48v battery bank and the xantrex controller bought from here settled in..We are about to have 20-30 mph winds today..last night we had enough wind to only get the 2 500's up to 18-20 volts while the 2kw was churning out 10-40 watts @ 22v...I have to leave for a few hours today and it bugs me to know I should lock it up and be home to make sure the controller will switch over to diversion mode.. The battery bank is shared by 2 500's but will rarely hit over 45 volts with 3 gt's on it..seen them maxed @40v and around 30amps. I have 2 diodes in place with the feed for the controller hooked under these feeds as to not be troubled by them.each turbine bank can feed into but not back as to merge the voltages..
Just a fyi I was able to fix half my gt's with new caps and the other 2 had burnt chips on the board so those two are being kept for practice desoldering and for spare fans-parts etc. I took pictures of each step to fix and will at some point get those loaded for a tutorial on here under a dedicated thread.
What a waste of money! The 22v is to low to let it become efficient at power..Winds I am getting the 2 500's are putting out 300+ but the 2kw is at 75w and struggling to go up.If I run less Gt's then it puts out more but then big winds would fry the gt's...Should of went with 2 750's for the price
I am running them both together. All the over volt problems is why I went back to 24 volt battery tie. The battery tie holds the rpms down till the GTIs kick in. Have not had any problems since.
This thread is done for me until I can save enough for a Aurora UL approved Wind turbine GT. In 30 mph winds last night,the best I could get was 150 watts..If i turned off the gt's and back on in the high 40's volt range it would hold steady around 800w but as soon as lighter winds inbetween the gust it would slowly be pulled back down around the 25v mark... When I have the mmpt info loaded on the aurora I feel the start should be around 40 volts and ramp up from there. Even on one sung 600w grid tie,I could only get 200w consecutive out of it in howling winds..
The three Aurora Power one Grid-tie models the PVI 3.0, the PVI 3.6, and the PVI 4.2 all have the same MPPT range of 50V to 580V (360 V nomnal). Hope that helps.
Come on Larry, maybe "Blue" understands the photo, but to me and maybe more of us out here, it's like being in 2nd grade in a one room schoolhouse and the teacher's talking to somebody in the 7th grade. What is that thing in the photo and what does it do? 2nd grade student, Andy PS: I'm hopin to complete some of the home work for the "Ginlong" before Thanksgiving. (I know you're busy too).
