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The PV panel goes through what appears to be a switched-coil boost converter.
The battery icon also appears to go through a switched-coil converter. By turning the transistors on and off in the proper sequence, it looks as the battery can be charged, or can supply a load. (I'm merely speculating.)
Evidently the other sections of the circuit have to do with 3-phase.
in the red rectangle you have the solar panel which supplies the dc bus via the boost converter...and there is a batt "ES" which is a store for energy THERE IS A BUCK CONVERTER FEEDING THE BATT FROM THE DC BUS (sorry about caps). The boost converter has inductor LS. Also the Permanent magnet synchronous machine is probably a wind turbine generating into the dc bus.......the stuff on the left is a grid tied inverter to shovel the energy into the mains
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