I'm curious if anyone can validate the efficiency of a multilevel inverter. I've been thinking about them as a better solution for PV conversion. They seem to have many advantages, but when I look at it, a single phase output can seemingly only draw power from, on average, half of the panels at a time.
I've seen this circuit both with and without caps across each individual source. I just can't see how this can do better than 50% efficiency especially without the caps.
Edit: I keep looking... I've found a ton of these that are grid tie. Lets say you have 6 panels that have an output voltage (after MPPT and DC-DC boost phases) of 30 V and each can provide 5 amps. So, I've got a peak voltage of 180V which gives me ~120Vrms. Now, the total available power from the panels is 180V*5A = 900W. But, my output power is 120V*5A = 600W. I feel like I'm missing something critical. Someone please tell me exactly how I'm being an idiot.