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Published 20 hours ago • verified publisher icon dalathegreat

Temperature derating

Open Cabooman opened this issue 1 year ago • 1 comments

It would be nice to limit charge/discharge power based on the battery temperature, e.g. ramping the power from the stated BMS power capacity at 40 degrees C to 0 W at 50 degrees C. Similarly at low temperature, ramp from BMS max power at -10 and 0 W at -20

Cabooman avatar Feb 16 '24 19:02 Cabooman

I have a similar wish regarding the temperature rating or reduced power related to temperatures below 20 degC. Using Goodwe 30 kW inverter with simulated 2*BYD HVM batteries. Ideal would be if the temperature could be "translated" to 21 degC when in the range of -10 to 19,9 degC ? This would allow us to run full power when needed. Without having to heat the batteries at all times.

Tosood avatar Mar 06 '24 16:03 Tosood

How do you use batteries? Battery management I3 continuously regulates the recommended charge and discharge value. Keep in mind that at -10 celsius you cannot fully power charging, the battery will be destroyed. As for regulation according to temperature - this is determined by battery management. So your request is duplicated and actually unnecessary. Only the battery management inside the battery has the correct values ​​for setting the limit.

havrla avatar Oct 27 '24 21:10 havrla