Hybrid Solar and AC Inverter construction

[Kipon Mor]

I own a 1600 VA sine wave inverter that operates at 240 Volts and charges 24 volt Lead–acid battery. I am planning to make a hybrid inverter that would automatically charge the 24 volts Lead-acid battery with Solar whenever AC mains is not available.
Working of the final hybrid inverter should be as follows:

1. Battery is charged with AC mains whenever available(regular charging).
2. When AC power is not available, the changing automatically switches and continues with solar power ( Using relays?).


I already have a solar charge controller for 24 volts 30A , 12 volt relays, 12 volt transformer, diodes(also other electronic components) and two 12 volt, 60 watts solar panels.

Below is a schematic for better understanding.

Any help would be greatly appreciated.

Thank you.

 

[BradtheRad]

A plain diode will automatically permit charging from the PV panel when called for. The diode will prevent the inverter from trying to charge the PV panels (if that situation ever occurs).

In a blackout I believe your inverter will automatically stop charging, and start inverting. I don't think you need to put a switching device between the battery and inverter.

Does your system have a transfer switch, to isolate it from the grid? That is important.
You don't want to send your high-V AC out to the street. You don't want to electrocute a lineman.