33 lines
1.5 KiB
Markdown
33 lines
1.5 KiB
Markdown
<br>
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# Optimize Self-Consumption -> Hold min SOC
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Initial State: `Optimize Self-Consumption`
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Target State: `Hold min SOC`
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## Test Procedure
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1. The system is brought to the `Optimize Self-Consumption` state by setting `Min SOC` lower than the current SOC (min. 5% lower)
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2. `Min SOC` should not be lower than 10%
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3. A production deficit is simulated by setting `Grid setpoint` to a negative value (-2000W)
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4. Wait until the `SOC` stabilizes slightly above `Min SOC`
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## Expected Outcome
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- The system first discharges the battery with 2000W.
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- Somewhere between `Min SOC + 1%` and `Min SOC + 4%` the system changes into the `Hold min SOC` state.
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- Once in this state, discharging is continuously throttled until it reaches 0W somewhere between `Min SOC + 0.1 %` and `Min SOC + 0.5 %`
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- The system then starts to charge with low power (<300W) in order to compensate for thermal energy loss.
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- The `SOC` stabilizes between `Min SOC` and `Min SOC + 0.5 %`
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- The `SOC` does not fluctuate by more than 0.1% once it has stabilized
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- Charging power does not fluctuate by more than 250W once it has stabilized
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## Tested Outcome
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The system reacted as expected and switched to `Hold min SOC` state once the SOC reached `Min SOC + 4%`. Once the state changed to
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`Hold min SOC`, the discharging power is throttled for around 40 minutes, where it then reached 0W at `Min SOC + 1 %`. When stabilized
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the system charges with low power (<75W) to compensate thermal losses. The fluctuations are within +/-50W range.
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