OK.Thanks - yes I'd got 120 in my head for some reason, it's certainly 110 as you say. I think there's automatic load shedding of 2/3 of lighting after DC drops below 86 volts, and I'm assuming it's not super critical.
Worth a go to see how it work out.I've been in my shed and found two 6A 48v DC supplies and as a temporary proof of concept setup I'm thinking I'll put them in series with extra diodes between output terminals to prevent back-feeding if one powers up alone. I stress that is a temporary fact-finding tool not the final solution!
I would try and avoid depend on any electro-mechanical convertor, they are noisy and relatively short lived (between servicing).Thanks, yes, could do that. It's probably worth checking the relative prices of a 230 -> 1000v step up transformer compared to a 230v 3 phase converter, neither of which I have in my head!
Do you know the AC frequency range that is acceptable? If 50Hz works then probably a VFD would do, but you would need to check with the supplier if it can be used on non-motor loads, etc. Of course you can also get dedicated converters but cost might start to creep up.