I have a brand new Deye inverter with the possibility to accept on his dedicated port a Grid Tied inverter that is controlled by frequency shifting and disconnection relay.
My old VFXR 3048 inverter is still good and have solar panels attached to.
So, the question is if this can be used and to be connected in GridTied mode and to be setup for selling his power to Deye.
Is this model able to react on frequency shifting ? Any special settings in Grid Interface Protection?
This thread asked the same question but for a GVFX inverter: viewtopic.php?p=102311#p102311
Your schematic shows the "second inverter" (assuming that's your VFXR) connected to something labeled "GEN". What is that?
https://ei.tigoenergy.com/p/pZXn7SZQyO45
https://enlighten.enphaseenergy.com/public/systems/Hctc107221
As of 8/25/23 Westinghouse array down to 21 panels, Skybox DC array out of commission.
Cool. Haven't heard of anyone AC-coupling an Outback inverter to another inverter. If you go ahead, let us know how it works.
https://ei.tigoenergy.com/p/pZXn7SZQyO45
https://enlighten.enphaseenergy.com/public/systems/Hctc107221
As of 8/25/23 Westinghouse array down to 21 panels, Skybox DC array out of commission.
I think that only the Radian inverters (4048 & 8048) can do what you're asking, not FXR's. I'm not an expert on this, though.
https://ei.tigoenergy.com/p/pZXn7SZQyO45
https://enlighten.enphaseenergy.com/public/systems/Hctc107221
As of 8/25/23 Westinghouse array down to 21 panels, Skybox DC array out of commission.
Outback Power VFXR3048E cannot react to frequency change.
However, I connected the inverter to the DEYE as mentioned above and was able to SELL the power.
When we have the grid up and you are allowed to SELL, the system works well.
When the grid is down or selling to the grid is limited, OutBack will continue to SELL the power to the local grid (mini-grid) IF and ONLY IF DEYE needs that power to handle its tasks or charge its batteries.
When the Outback power is higher than this need, DEYE will try to reduce the OutBack power by increasing the frequency. The Outback is unresponsive and when the frequency reaches the maximum value set in the Grid Protection Interface it will simply disconnect. Then try to reconnect after X minutes set in the reconnect delay timer.
In addition, Deye has its own protection and if the voltage and frequency of the connected inverter reach a certain level, it will disconnect from it. All these connections and disconnections bother me a little.
To conclude:
Yes, Outback can work as a coupled inverter with the DEYE in the above configuration, with some limitations and not at the full potential of the DEYE, especially when the export to the network grid is limited .
