Battery–Supercapacitor Energy Management System for Electric Vehicle in MATLAB
 
This product presents a MATLAB/Simulink-based electric vehicle energy management model using a battery and supercapacitor hybrid energy storage system. The model is designed to analyze power sharing between the battery and supercapacitor under EV drive-cycle operating conditions.
The battery acts as the main energy source and supplies continuous power to the electric vehicle. The supercapacitor supports sudden transient power demand during acceleration, load variation, and dynamic speed changes. A DC–DC converter is used to interface the supercapacitor with the battery and EV load system.
 
The simulation includes battery current, battery voltage, battery SOC, supercapacitor current, supercapacitor voltage, load power, battery power, supercapacitor power, and vehicle velocity analysis. This model is suitable for learning, research, academic projects, and EV energy management studies.
 
Product Specification
 
Software Platform: MATLAB/Simulink
 
System Type: Electric Vehicle Hybrid Energy Storage System
 
Energy Sources: Battery and Supercapacitor
 
Converter Type: DC–DC converter interface
 
Input Profile: EV drive cycle
 
Main Output Parameters: Battery current, battery voltage, SOC, supercapacitor current, supercapacitor voltage, load power, battery power, supercapacitor power, and vehicle velocity
 
Simulation Type: Discrete simulation
 
Application Area: Electric vehicle energy management and hybrid energy storage analysis
 
Main Components Included:
Battery energy storage system
Supercapacitor energy storage system
DC–DC converter
Electric vehicle model
Drive cycle source
Power measurement block
Battery SOC measurement
Battery current and voltage measurement
Supercapacitor current and voltage measurement
Load power and vehicle velocity analysis
 
Operation
 
The operation of the system starts with the EV drive cycle input. The drive cycle provides the reference speed profile for the electric vehicle model. Based on this speed profile, the EV model generates the required load power demand.
 
The battery supplies the main energy required by the electric vehicle. During steady operation, the battery provides continuous power to support vehicle movement. When the vehicle experiences sudden acceleration or transient load changes, the supercapacitor provides additional support.
 
The DC–DC converter controls the power exchange between the supercapacitor and the battery-side DC link. This allows the supercapacitor to respond quickly to sudden power demand and helps reduce stress on the battery.
 
The simulation results show that the battery voltage remains stable, the SOC decreases gradually, and the supercapacitor voltage remains nearly constant. These results confirm proper hybrid energy storage operation and effective power management.
 
Use Cases
 
This model can be used for electric vehicle battery and supercapacitor energy management studies. It is useful for analyzing how hybrid energy storage improves EV performance under drive-cycle conditions.
 
It can also be used for academic projects, research work, and thesis simulation related to electric vehicles, battery management systems, supercapacitor-based energy storage, and DC–DC converter control.
 
The model is suitable for studying battery stress reduction, SOC behavior, transient power support, supercapacitor current response, vehicle load power variation, and EV velocity-based energy demand.
 
This simulation can help students, researchers, and engineers understand the benefits of combining high-energy-density batteries with high-power-density supercapacitors for modern electric vehicle applications.
 
Key Benefits
 
Improves EV transient power response
Reduces battery current stress
Supports better battery life
Maintains stable battery voltage operation
Uses supercapacitor for fast power compensation
Analyzes complete EV drive-cycle performance
Useful for MATLAB/Simulink-based EV research and learning
 
Suitable For
 
Engineering students
Research scholars
MATLAB/Simulink learners
Electric vehicle researchers
Power electronics projects
Battery management system studies
Hybrid energy storage system analysis
Academic thesis and project demonstrations