Modeling and simulation of Automotive Battery Pack for Electric vehicle DC Fast Charging Tasks

The example models a battery pack connected to an auxiliary power load from a chiller, a cooler, or other EV accessories.

This example shows how to model an automotive battery pack for DC fast charging tasks.

In this example, a battery pack is created by connecting three battery modules in series.

A resistance models the cable connection between individual modules.

A DC current source models the charger current and it is connected to the battery pack using a cable modeled as a resistance.

A power load across the battery terminals models the power consumption due to the chiller or the heater for coolant circuit. 

This example uses the parameters defined in the ee_lithium_pack_DCFC_ini.m file. 

Three cases are considered:

Case 1: The vehicle is parked in the parking area for a long time. The initial cell temperature is the same as the ambient temperature. The battery is heated during charging, with the initial battery state of charge equal to 20%. Case 2: The vehicle is driven and immediately charged. The initial battery cell temperature is equal to 285 K. The battery is heated during charging, with the initial battery state of charge equal to 20%. The cellInitialTemp workspace variable, defined in the ee_lithium_pack_DCFC_ini.m file, is changed to a value equal to the value of the Amb port plus 15.  Case 3: The vehicle is driven and immediately charged. The initial battery cell temperature is 285 K. The battery is not heated during charging (no auxillary power consumption), with the initial battery state of charge equal to 20%. The cellInitialTemp workspace variable, defined in the ee_lithium_pack_DCFC_ini.m file, is changed to a value equal to the value of the Amb port plus 15 and auxLoad is set to a low value equal to 1e-4. The coolant flow rate FlwR is set to zero by turning off the coolant flow inside the Controls/Flow_Control subsystem, setting NoFlow to 0. Click here to download the simulink file: https://drive.google.com/file/d/1EDdBN9WU1bcp6rogdQZcJyhyCrjZiKRZ/view?usp=sharing Kindly Subscribe My YouTube Channel... Please like, share and comments on My Videos 🙏 Please click the below links to Subscribe/Join & View my Videos https: //www.youtube.com/c/DrMSivakumar Telegram : t.me/Dr_MSivakumar website : drmsivakumar78.blogspot.com https://www.paypal.com/paypalme/DrMSivakumar?locale.x=en_GB