modelBEVBattery

Information

1. Purpose of model

This model implements a simple electric storage for the integration in an Battery Electric Vehicle model.

2. Level of detail, physical effects considered, and physical insight

Model is based on the energy conservation equation for a storage device.

3. Limits of validity

No implementation of Battery Management System (BMS) included.

4. Interfaces

Input:

P_set for the setpoint of the active power consumption/generation.

Output:

SOC for the state of charge.

P_request for the nominal power consumption in this moment dependent on the SOC.

epp for the PQ boundary and connection to the complex root mean square simulation.

5. Nomenclature

See parameter and variable descriptions in the code.

6. Governing Equations

The equations 6.3 - 6.6 are calculated first before 6.1 and 6.2 are calculated due to the sequential structure of the model.

6.1. Energy conservation equation

dE/dt = P_set;

6.2. State of Charge

SOC = E / Capacity;

6.3. Reactive Power

Q = 0;

6.4. Request Power

if noEvent(SOC >= 1) then

P_request = 0;

elseif noEvent(SOC >= SOC_th) then

P_request = P_nominal*max(0, 1 - (1 - lambda_Pmin)/(1 - SOC_th)*(SOC - SOC_th));

elseif noEvent(SOC <= (1 - SOC_th)) then

P_request = -P_nominal*max(0, (1 - lambda_Pmin)/(1 - SOC_th)*SOC * lambda_Pmin);

else

P_request = P_nominal;

end if;

7. Remarks for Usage

(no remarks)

8. Validation

(no remarks)

9. References

(no remarks)

10. Version History

BEVBattery by Tom Steffen, Techische Universität Hamburg, Institut für Elektrische Energietechnik, 2025

Parameters

Connectors

Components