Digital twin for battery

Hi,

I am trying for digital twin for battery (lithium ion- 1 cell). I have finished simulation model using simulink, but I want to give discharge current from hardware (arduino) in real time. I have tried, but I can't find out the way. Let any one can help me to solve

Answer 1

[atharva]

Hey Nalla,

I understand that you want to create a digital twin for a lithium-ion battery and interface it with Arduino for real-time current control .

Here's a general roadmap on how you can approach this:

1. Digital Twin Model: Ensure your Simulink simulation model accurately represents the behavior of a lithium-ion battery, including voltage, current, and temperature dynamics.
2. Data Exchange Between Simulink and Arduino: You need a way to exchange data between Simulink and the Arduino. This can be done through various communication protocols like Serial (UART), I2C, SPI, or even wireless communication like Bluetooth or Wi-Fi.
3. Arduino Setup: Write an Arduino program to receive commands from your computer or another device and control the discharge current.
4. Real-Time Data Transfer: You'll need a way to send data from Simulink to the Arduino in real-time. Simulink supports various data exchange methods, including using External Mode or custom MATLAB scripts. Use MATLAB Support Package for Arduino for seamless communication.
5. Interpolation: To control the discharge current, you might need to interpolate the data sent from Simulink.
6. Testing and Calibration: Calibrate your digital twin to match the real-world behavior of your lithium-ion battery. This might involve tweaking parameters in your simulation to match the response of the physical battery.
7. Real-time Control Interface: Create a user-friendly interface for controlling the discharge current in real-time. This could be a software application or a physical control panel that sends commands to the Arduino.

I hope this helps!