ESTIMASI STATE-OF-AVAILABLE-POWER BERBASIS DATA RIIL PADA BATERAI LITHIUM-ION

Mergie, Wahyuni (2025) ESTIMASI STATE-OF-AVAILABLE-POWER BERBASIS DATA RIIL PADA BATERAI LITHIUM-ION. Bachelor thesis, Institut Teknologi Kalimantan.

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Abstract

Penelitian ini mengembangkan metode estimasi SOAP secara real-time pada baterai Li-Ion 18650 dengan menggabungkan parameter SOC dan SOH melalui model ECM adaptif. Sistem dirancang menggunakan Arduino Uno, sensor arus ACS712, sensor tegangan presisi, dan termometer digital. Hasil kalibrasi menunjukkan akurasi tinggi, dengan error rata-rata 0,0414% untuk sensor arus dan 0,0213% untuk sensor tegangan. SOC dihitung menggunakan metode Coulomb Counting, sedangkan SOH diperoleh dari perbandingan kapasitas aktual terhadap kapasitas nominal baterai. Selama lima siklus pengisian dan pengosongan, nilai SOH tetap 100%, menandakan tidak ada degradasi kapasitas. SOAP dihitung sebagai fungsi dari SOC dan SOH, lalu dikonversi menjadi dua bentuk yaitu daya (PSOAP) dalam Wh dan kapasitas (QSOAP) dalam Ah. Tanpa ECM, PSOAP saat charging berada pada kisaran 0,001264–0,001472 Wh, dengan % PSOAP antara 87–100%. Setelah menerapkan ECM, nilainya menjadi lebih stabil pada 0,001253–0,001451 Wh (%PSOAP: 86–100%). Pada proses discharging, PSOAP tanpa ECM fluktuatif di antara 0,00079–0,00092 Wh, sementara dengan ECM menjadi konsisten di kisaran 0,00090–0,00092 Wh, dengan %PSOAP mendekati 100% di hampir seluruh siklus. QSOAP menunjukkan hubungan linear terhadap SOC, dari 0 Ah (SOC 0%) hingga 2,5 Ah (SOC 100%) pada semua siklus, baik pengisian maupun pengosongan. ECM terbukti tidak mengubah kapasitas aktual, tetapi mampu meredam fluktuasi tegangan dan arus akibat noise maupun efek resistansi internal baterai. Penerapan ECM secara signifikan meningkatkan akurasi dan kestabilan estimasi SOAP secara real-time. Metode ini memberikan landasan kuat bagi pengembangan BMS yang prediktif, efisien, dan andal, terutama untuk kendaraan listrik, sistem penyimpanan energi, serta perangkat elektronik portabel yang bergantung pada performa dan umur baterai. Kata kunci: Baterai Lithium-Ion, ECM, SOAP

Item Type:	Thesis (Bachelor)
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Jurusan Teknologi Industri dan Proses > Teknik Elektro
Depositing User:	Mergie Wahyuni
Date Deposited:	09 Jul 2025 02:03
Last Modified:	09 Jul 2025 02:03
URI:	http://repository.itk.ac.id/id/eprint/23140

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