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SOC different from expected value
03 Mar 2022 11:03 - 04 Mar 2022 23:56 #10651
by Fra
SOC different from expected value was created by Fra
Hi everyone,
I’m dealing with a "Generic-Battery, Single owner" casewhose nominal LFP battery capacity is 6021kWh (DC), which corresponds to 4480 Ah
(DC) because the nominal bank voltage is 1344V, and when the simulation shows 95% of
SOC the “Battery total charge (Ah)” shown at the beginning of life (hence
without any degradation occurring) is 4130.72Ah rather than
95%*4480=4256Ah. Is there any reason for such discrepancy?
Here is a screenshot of that:
Many thanks
Best
Fran
I’m dealing with a "Generic-Battery, Single owner" casewhose nominal LFP battery capacity is 6021kWh (DC), which corresponds to 4480 Ah
(DC) because the nominal bank voltage is 1344V, and when the simulation shows 95% of
SOC the “Battery total charge (Ah)” shown at the beginning of life (hence
without any degradation occurring) is 4130.72Ah rather than
95%*4480=4256Ah. Is there any reason for such discrepancy?
Here is a screenshot of that:
Many thanks
Best
Fran
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08 Mar 2022 00:22 #10660
by pgilman
Replied by pgilman on topic SOC different from expected value
Hi Francesco,
This effect is cause by the thermal properties of the Li-ion/LFP battery, which you can see under "Battery Thermal" on the Battery Cell and System page:
The battery environment temperature is set to 25 degrees C, so the battery capacity is between 96.6667% and 101% of nameplate.
In the time series results, you can show the Battery capacity percent for temperature variable to see that effect in the results:
Best regards,
Paul.
This effect is cause by the thermal properties of the Li-ion/LFP battery, which you can see under "Battery Thermal" on the Battery Cell and System page:
The battery environment temperature is set to 25 degrees C, so the battery capacity is between 96.6667% and 101% of nameplate.
In the time series results, you can show the Battery capacity percent for temperature variable to see that effect in the results:
Best regards,
Paul.
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