Innovenergy_trunk/doc/controller_tests/Optimize Self-Consumption -> Bridge Grid Blackout -> Charge to min SOC -> Hold min SOC.md

# Optimize Self-Consumption -> Bridge Grid Blackout -> Charge to min SOC -> Hold min SOC

Initial State: Optimize Self-Consumption
Intermediate State: Bridge Grid Blackout
Intermediate State: Charge to min SOC
Target State: Hold min SOC

Test Procedure

1. SOC should be 50% or lower
2. min SOC is set to be at 5% or more below the current SOC
3. Grid setpoint is set to 0W.
4. a load (min 1000W) is connected to the AC-Out side of the inverter.
5. A grid blackout is simulated by manually disconnecting the system from the grid
6. The system is left without grid until the SOC drops at least 1% below min SOC.
7. The system is connected back to the grid

Expected Outcome

• The system first is in the Optimize Self-Consumption state.
• As soon as the grid is disconnected, the system changes into Bridge Grid Blackout, as visible by the "inverter on" LED on the inverter.
• the load must not loose power
• the Venus controller will loose power for a short time and then reboot
• as soon as the Venus has rebooted, the controller should resume in the Bridge Grid Blackout state. (It may transition through the Unknown state, but it must not stay there for more than 30 seconds)
• after the grid has been reconnected (when the SOC dropped at least 1% below min SOC), the inverter synchronizes with the grid and switches back to charger mode ("mains on" LED on the inverter is lit). This should not take longer than 3 minutes.
• the Venus controller should then change into the Charge to min SOC state.
• the system should charge to min SOC with at least 1500W
• once min SOC is reached, the controller should switch to Hold min SOC and the SOC should stabilize slightly above min SOC.
• during the whole procedure the load must never loose power