modeling an advanced energy management system for electric vehicles using MATLAB/Simulink

I'm working on modeling an advanced energy management system for electric vehicles using MATLAB/Simulink. My project involves integrating batteries and supercapacitors to manage energy efficiently, where supercapacitors handle high energy demands during acceleration and store energy recovered from braking. Additionally, I'm incorporating a backup power source using fuel and exploring the integration of renewable energy sources like solar power. I'm facing challenges in connecting and configuring these components correctly in Simulink. Can someone guide me on the best practices for setting up this hybrid system and suggest specific blocks or configurations that would work efficiently for this application?

Answer 1

[MULI]

Hi Salih,

To model your advanced energy management system (EMS), for electric vehicle you can follow the below steps:

• Firstly, integrate batteries, supercapacitors and solar panels into your system and you can refer to the below example for integrating these components. https://www.mathworks.com/matlabcentral/fileexchange/69371-battery-supercapacitor-hybrid-storage-system
• Use DC-DC converters (e.g., boost, buck-boost, bidirectional converters) to regulate voltage and connect all components to a common DC bus.
• You can develop energy flow control using "Stateflow" or a “MATLAB Function” block and define a priority hierarchy for power sources, such as [Solar (primary)>Supercapacitor (for acceleration or braking)>Battery (for normal operation)>Backup fuel source (as a last resort)]
• You can analyse the power quality using “powergui”. This ensures stable operation and mitigates voltage fluctuations across the DC network.You can refer to below example for performing Total harmonic distortion (THD) analysis. https://www.mathworks.com/help/sps/powersys/ug/simulating-variable-speed-motor-control.html#f1-11898.

You can also refer to the following Simulink example which demonstrates the hybrid-electric vehicle model built using Simscape, Simscape Electrical, and Simscape Driveline:

https://www.mathworks.com/matlabcentral/fileexchange/28441-hybrid-electric-vehicle-model-in-simulink