Analisis State Of Charge Baterai Lithium Iron Phosphate Saat Charge Dan Discharge Untuk Electric Vehicle Menggunakan Metode Perhitungan Coulomb

Andika, Ikhwan (2023) Analisis State Of Charge Baterai Lithium Iron Phosphate Saat Charge Dan Discharge Untuk Electric Vehicle Menggunakan Metode Perhitungan Coulomb. Diploma thesis, Andalas University.

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Abstract

Electric vehicles are one of the solutions to reduce dependence on fuel oil consumption that is driven by an electric motor and an electric power source that comes from a battery. Lithium ion batteries are batteries that are widely used for electric motors. In the battery charging process, State of Charge (SoC) estimation is one of the most important issues. SoC indicates the ratio of the remaining battery energy capacity to the maximum energy capacity expressed in percentage (%). The type of research applied in this final project is experimental research. SoC calculations use Coulomb calculations to determine the results. The results for SoC values on 12 V and 24 V systems when charging and discharging are almost close to the actual data. As for the results of the SoC value in the 12 V system, it is also close to the actual data but there is an error, and for the 24 V system, the results are also obtained which are almost close to the actual data. The SoC value obtained for the 12 V system during the charging process varies at a value of 80% and 90%. While for the 24 V system during the charging process is 90%. The SoC value obtained for the 12 V system during the discharging process varies at 10% and 20%, and is at a value below 0% due to overdischarging. As for the 24 V system during the discharging process, the minimum SoC value is 10%. The charging time for 12 V and 24 V systems does not have a significant difference. While the discharge time of 12 V and 24 V has a considerable difference.

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