Hi,
I'm curious how the internals of the inverters work and how multiplus differs from newer RS models. Can someone confirm if my understanding it on the right track or not?
As I understand it in the transformer based models (multiplus) low voltage DC from battery is converted to high frequency AC using IGBT's? (or is it Mosfets?), and then transformed to step up the voltage to 240vac.
The grid synchronisation and amount output is managed by the switching rate and duration of the IGBT's? Is that correct?
Then the transformer less RS models. Rather than using a transformer the DC voltage from battery is boosted to high voltage DC and then similar inverting process occurs? Is that correct?
But if power is coming from PV it's bucked then converted? Assuming that's correct how is the balance between PV and battery managed.
If load > PV then you need a little extra battery. When do those two sources meet. Is it after buck/boost but before inverting?
(Apologies for beginner queries/if I'm miles off).
