Hi countryboy,
Sorry that this still isn't resolving into reality for you.
I think, after your last post, I better see your position, and appreciate the extra background.
Hopefully you aren't on your own. The task should be divvied up among a team so that you can focus on your specialty.
Antarctic/Arctic: No battery will last, no sun 1/2 the year!, and the cost of diesel fuel AFTER it's been transported by AIR CARRIER to your station is roughly 100$ per gallon. The viscosity of oil at -70C is halfway between lead and butter. People at the base have better things to do than wrastle with a gyroscope in the wind.
Yes, typically volts rise with RPM, linearly.
You can select a TSR that is low to keep the RPM down.
You can select or build a generator to function at any RPM. ANY RPM. The only factor is cost and complexity. I once converted a 1800 RPM 7.5HP motor so that it can produce >3kW below 1000 RPM. If I'd been more ambitious with the conversion I could have done better. The more slowly you want it to function, the more difficult it becomes.
Limits to generators can be reached in different ways. #1 is heat. Too much current produces damaging heat and failure is imminent. #2 is reactance, which is most pronounced in iron-cored generators and nearly absent in axial-flux core-less generators as promoted by otherpower.
You can test anything before final assembly of the generator. The instructions can be found in many places with searching.
Perfect wind energy capture will reduce the wind speed downstream to 1/3 of the upstream wind speed. At the plane of the rotor itself the wind speed is 2/3 of the upstream speed. It's basically the reverse of an aircraft propellor slipstream.
Too many questions, widely varying, to answer in great detail each. I've already pointed you to the specialists where you will learn the most about aerodynamics, testing, what works and what doesn't. Though I forgot to mention Paul Gipe's book, so let me put in a plug for it now. Some antarctic examples in there (Proven, SWWP at McMurdo etc.)
With any luck, these answers will steer the discussion onto a course that will ultimately help you. Personally I think that if you've never built a WT before, and you want to start from scratch, and do it all by yourself, then your first try likely won't survive your backyard, let alone the north pole. Voice of experience. I've got a few smashed WT's under my belt too.
Now for the details,
I do not know the electrical side of the turbine. I was told to just test out the power generation so the volts do not matter during the test. However, this is a very vague grant and I have a couple of rounds of questioning that I can ask them before starting. The voltage will need to vary with equipment since batteries are shot in the cold. I imagine they will just make the power with the turbine and use an electrical panel to break off the power requirements of their devices. Now to get away from the story.
My questions I have so far are:
I understand many people rate these generators on a volt/rpm basis. Is this a linear line that does not stop with max rpm or does it max out at a certain rpm?
If so how do I determine this max?
The lower TSR idea seems like a winner. If the blades spin slower, even in 60 mph wind, will this decrease power output? The speed of the turbine will help from the cold weather (freezing) so I do not want to slow it down too much.
Is there a way to test a coil before placing all of the coils in the stator to get a general idea of power at a certain rpm?
Basically I am in need of how to build a generator for my needs so any resources of higher rpm axial flux generators would be appreciated.
Also does anyone know of how slow the wind is after it leaves the turbine? Another idea was to place these turbines into the wind to help slow down the incoming wind to the research camps. This would just be an unexpected benefit.
