What blocks are used to show different discharging rates (1C, 2C 3C etc.) in battery packs?

Hi,

i want to model a battery pack with thermal effects. i want to discharge it at various rates( called C rates, 1C,2C,3C..). Which simulink block will be used for that purpose, please guide me.

Thank you.

Answer 1

[Xiangchun]

Hi Sudeep,

For modeling battery packs with thermal behavior, we can use Simscape Battery.

Here are some examples on how to get started.

Build Model of Battery Pack with Multi-Module Cooling Plate - MATLAB & Simulink (mathworks.com)

Get Started with Battery Builder App - MATLAB & Simulink (mathworks.com)

Build Model of Battery Module with Thermal Effects - MATLAB & Simulink (mathworks.com)

Best wishes,

Xiangchun

[SUDEEP SINGH RAWAT]

Thanks for responding. Please tell me which simulink block or by which way i can discharge the battery pack at various rates ( C rates).

[Xiangchun]

Hi Sudeep,

We can use Controlled Current Source block, Ideal current source driven by input signal - MATLAB (mathworks.com), to specify the current we want to use to charge and discharge the battery (pack). If we know the rated capacity (in Ah) of the battery, we can easily convert C rate to current in A.

The following example uses this Controlled Current Source block to specify the current for CC-CV charge and constant current discharge. Battery Charging and Discharging - MATLAB & Simulink (mathworks.com).

Best wishes,

Xiangchun