Can someone tell me is the way you can wire two mills together is the same concept as batteries.positive to load-neg+pos-negative to load on other rectifier... What happens if only one mill is turning,, can it still produce voltage? Would this mean there would be alot less resistance so less drag and slowing of the blades?
Hey Bluejay, I have not wired mine up this way but yes same as wiring batteries. You are trying to higher your volts which means you will lower your amps with combining the turbines that way. As far as drag I am not shure. I assume the reason you are wiring it this way is to do a higher voltgae bat. bank? I would assume the voltage would pass right by the other rectifier until the second turbine kicks in an ups the voltage level. I also assume the rectifier has diodes built into them so a back feeding problem should not be an issue therfore not creating any drag on the turbines. This is a great experiment to do. Pleaselet me know
I was just thinking out loud Leamy...If you had property and had to run a fair lenth of wire,this seems how you could still produce in low winds but have higher volts to push longer runs...Makes sense as long as it doesnt burn out the rectifiers
Yes, after the rectifiers you can tie together as many turbines as you want. Just as long as each wind turbine gets its own rectifier. You can tie the wind turbines together in series (higher volts) or in parallel (same volts but more amps).
Yea I was saying mixing all the dc..I didnt know if all this dc mixed would mess up the rectifiers from all of them being connected at the dc side...You would be dealing with alot of amps if there wer 3-5 mills on the same DC feed into the house..
Yep, you can tie five of our PMA's together in parallel or series or a combination of both series and parallel. This, of course, must all be done on the DC side. As long as the wire you are using is rated to handle the amps, it will be fine.
interesting, this was going to be a question I was going to ask Larry about him tying in his turbines to his grid tie inverters. So what I am wondering is if you have tied all your turbines together after their rectifiers and you are feeding a grid tie with MPPT how does that inverters MPPT distinguish between all those turbines to maximize their power ? :roll: murray
I think that the MPPT function of the controller would not work in this situation. The MPPT would be "confused".
Hey guy's good question on the MPTT. That is a great point but the MPTT does not miss much.No matter what I still have to hit 11.8v out of 3 turbines to get it going. So if just one turbine hits that mark the others have to as well to build up the amps. So maybe I might be missing out less then a watt at that point in time. There is no interference between the turbines as you guy's already figured out on the D/c side so it works great. Once the second one and third one hit 11.8 here come the amps now I have 11.8x 3 amps if one tubine drops below now I have 11.8x 2 amps ect. The inverter keeps things pretty tight until I get upto about 150watts or so then the volatge starts to rise. Thanks guy's
hey Josh, a confused inverter, well it would match where my head is at most of the time :lol: :lol: Larry this is where you grit your teeth with my questions. :roll: Do you mean the MPPT still works and does not miss out too much on maximizing all 3 of the turbines potential. OR do you mean that due to the cut in being low at 11.8 there is not a lot of potential wind energy lost with the MPPT not being able to handle more than one turbine ? After reading this thread I am doing some number crunching to see if there is payback on setting up another of Marks new relays but this time running my Windy 500 to a set of low V grid ties like Larry's Sun D, and using Marks relay system to transfer to my battery bank when power is out or switch off the home grid power to the relay system and divert the Windy 500 to do maintenance on the battery bank. Hmm need to talk more to Larry on the input V control of the Sun D, so when it reaches the 20 V max in. how does the inverter deal with that overload ? If there is an overload could a controller be used as a dump to transfer to a bank as your dumpload ? But this whole dam thing brings me back in a circle again. Over the years I started out with small (very) small turbines and thought if I want more power never mind adding more and more small turbines. Go BiG and put up less turbines and minimize my footprint on the ground and air and also lessen the amount of towers I have to maintain. :roll: oh well, learning lots anyways. have a good weekend everyone. murray
