power electronic
unju jetik
el 29 de Jun. de 2024
hello i'm working on simulation using simulink which is my title is ENHANCING BATTERYENERGY STORAGE SYSTEMSTHROUGH MODULAR MULTILEVEL CONVERTER WITH STATE-OF-CHARGE BALANCING CONTROL. i already build 9 level mmc. but i dont have any idea for state of charge balancing control.please any suggestion and explain.
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To implement SOC balancing control for your MMC in Simulink:Steps
- Initialize:
- Set initial SOC levels for battery modules.
- Configure your 9-level MMC in Simulink.
- Monitor SOC:
- Use Simulink blocks to monitor SOC of each module.
- Control Algorithm:
- Implement a PI controller to adjust power flow based on SOC differences.
- Balancing Strategy:
- Active Balancing: Use DC-DC converters to transfer energy between modules.
- Passive Balancing: Use resistors to dissipate excess energy.
- Simulink Implementation:
- Integrate the control logic and balancing components into your Simulink model.
- Simulate and Validate:
- Run the simulation, adjust parameters, and ensure SOC levels are balanced.
Example Pseudo-code
matlab
Copy code
for each time step:
SOC = measureSOC();
SOC_diff = target_SOC - SOC;
control_signal = PI_controller(SOC_diff);
adjustPowerFlow(control_signal);
SOC = updateSOC();
end
References
- Research SOC balancing in MMCs and battery systems.
- Use Simulink documentation and examples for guidance.
- Study BMS design for additional insights.
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