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Viji Chandran, Ann Elizabeth Babu, Sunil Kumar P.R.
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- Student, Student, Assistant Professor Department of Electrical Engineering, Rajiv Gandhi Institute of Technology Kottayam, APJ Abdul Kalam Technological University, Department of Electrical Engineering, Rajiv Gandhi Institute of Technology Kottayam, APJ Abdul Kalam Technological University, Department of Electrical Engineering, Rajiv Gandhi Institute of Technology Kottayam, APJ Abdul Kalam Technological University Kerala, Kerala, Kerala India, India, India
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Abstract
nBalancing the cells within a battery system is essential for safeguarding against overvoltage, overcharge, and over-discharge, which can lead to system failures and safety hazards. Two commonly employed methods for cell balancing are passive and active balancing. In passive balancing, excess charge is dissipated through resistors, while active balancing involves the controlled flow of charge within the circuit. This paper focuses on the comparison and analysis of passive and two specific active balancing techniques: single switched capacitor and single inductor balancing. The utilization of pulse width modulation (PWM) signals with a duty ratio of 50% for all switches is employed in both techniques. The objective is to transfer charge from cells with a higher state of charge (SOC) to cells with a lower SOC, thereby achieving balance within the battery system. In this paper the performance of the single switched capacitor and single inductor-based balancing techniques using MATLAB Simulink are being compared. The simulations are conducted under various operating conditions including idle, charging, discharging states. The objective is to assess the effectiveness and efficiency of these techniques in achieving cell balance. The single switched capacitor and single inductor-based balancing methods offer advantages over passive balancing in terms of balancing time and efficiency.
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Keywords: Battery management system (BMS), State of Charge (SOC), cell balancing, passive balancing, active balancing
n[if 424 equals=”Regular Issue”][This article belongs to Journal of Power Electronics and Power Systems(jopeps)]
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References
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| Volume | 14 | |
| [if 424 equals=”Regular Issue”]Issue[/if 424][if 424 equals=”Special Issue”]Special Issue[/if 424] [if 424 equals=”Conference”][/if 424] | 01 | |
| Received | May 3, 2024 | |
| Accepted | May 27, 2024 | |
| Published | June 13, 2024 |
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