Running a 110VDC Jake w/Aurora Inverter?

[Willi Hampel]

I am a new member to Green Power Talk and was wondering if anyone has experience running an Aurora PVI-4.2-OUTD-W-US grid-tie inverter with a 110VDC, 3kW Jacobs Wind Electric Generator?

[Dale Sheler]

You might what to PM Chris Olson, he has at least two jakes, I'm not sure of the particulars though.

[Chris Olson]

I already corresponded with Willi offline and my Jakes are AC units - totally different ballgame than the old Model 25's and so on. I recommended that he get hold of Tom Hoffer, who I know is on this board and is not too far me over in Stillwater. Tom, I'm pretty sure, is using a 23-10 with an Aurora, which again is an AC unit and not the DC Jake like Willi has. But Tom could probably supply more details on that inverter and what it takes.

The 23-10 is a 10 kW machine. The old DC Jake is a 3 kW machine. So I know the inverter would work with it as long as you keep the voltage under the inverter's limits - it's just a matter of how. And that I don't know.

Edit:
I was thinking about this, and that 110 volt Jake is rated at 140 volts and around 20 amps. I don't see why you can't hook it up and it will "Just Work". The Aurora, I believe has MPPT tables in it and I don't know that that will do a lot for the turbine because I don't think without rewinding the field that you can drive it over 140 volts anyway. And you're not going to get more out of it by running the rotor faster because it'll just come up against the governor and won't go any faster.

I know one person up near Brainerd, MN that is running a 110 volt Jake on a 48 volt system and he is disappointed in output because he's running it at too low of a system operating voltage. He can only get about 1200 watts out it. So anyway, if the output isn't what you expect from that old Jake, the first thing to do is make sure you got that voltage up around 140. If you got it clamped down to 110 you're barely going to see 2 kW out of it.
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Chris