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Journal of Power Electronics and Power Systems Original Research

Efficient Cell Balancing and Protection Schemes for Electric Vehicles

  1. B. Kusuma Kumari Department of Electrical and Electronics Engineering, Gayatri Vidya Parishad College of Engineering for Women, Visakhapatnam
  2. G. Priyanka Department of Electrical and Electronics Engineering, Gayatri Vidya Parishad College of Engineering for Women, Visakhapatnam,
  3. Md. Basheera Department of Electrical and Electronics Engineering, Gayatri Vidya Parishad College of Engineering for Women, Visakhapatnam,
  4. M. Vasanthi Department of Electrical and Electronics Engineering, Gayatri Vidya Parishad College of Engineering for Women, Visakhapatnam
  5. R. Pooja Bharathi Department of Electrical and Electronics Engineering, Gayatri Vidya Parishad College of Engineering for Women, Visakhapatnam

Abstract

Efficient cell balancing and protection are critical aspects of electric vehicle (EV) battery management systems, ensuring optimal performance, longevity, and safety. Cell balancing refers to the process of equalizing the charge levels of individual cells within a battery pack to maximize energy utilization and prevent overcharging or undercharging of any cell. This promotes uniform wear and extends the overall lifespan of the battery pack. In the context of EVs, where battery packs consist of numerous cells connected in series and parallel configurations, efficient cell balancing becomes paramount to maintain pack integrity and performance. Advanced algorithms and monitoring systems are employed to continuously assess the state of charge and health of each cell, orchestrating the redistribution of energy as needed to achieve balance. Robust protection mechanisms are implemented to safeguard against potential hazards such as overvoltage, overcurrent, and overheating. Rapid detection and mitigation of anomalies are essential to prevent catastrophic failures and ensure the safety of both the vehicle and its occupants. Efforts in research and development are focused on enhancing the efficiency of cell balancing techniques, minimizing energy losses, and improving overall system reliability. As EV technology continues to evolve, advancements in cell balancing and protection will play a crucial role in accelerating the adoption of electric mobility and shaping the future of transportation.

Keywords

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