Desain Dan Implementasi Two-Phase Interleaved Buck Converter Untuk Aplikasi Pengisian Baterai Lithium-Polymer

Linelejan, Thimoty (2026) Desain Dan Implementasi Two-Phase Interleaved Buck Converter Untuk Aplikasi Pengisian Baterai Lithium-Polymer. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Semakin meningkatnya penggunaan kendaraan listrik berpengaruh besar terhadap kebutuhan akan sistem pengisian daya baterai yang efisien dan aman. Baterai lithium-polymer (Li-Po) merupakan solusi penyimpanan energi yang populer karena kepadatan energi tinggi, ringan, dan umur pakai panjang. Untuk menjaga kinerja serta keamanan baterai, metode Constant Current–Constant Voltage (CC/CV) sering diterapkan. Namun, penggunaan Buck Converter konvensional pada sistem pengisian daya masih memiliki kelemahan berupa efisiensi yang rendah dan riak arus yang tinggi. Solusi dari permasalahan ini adalah menggunakan topologi Two-Phase Interleaved Buck Converter yang mampu membagi arus ke dua fase, menekan nilai riak arus, serta meningkatkan efisiensi konversi daya. Penelitian ini bertujuan merancang, mensimulasikan, dan mengimplementasikan Two-Phase Interleaved Buck Converter untuk aplikasi pengisian baterai lithium-polymer. Two-Phase Interleaved Buck Converter mampu transisi otomatis dari mode CC (2 A) ke mode CV (12,6 V). Ketika diimplementasikan dengan variasi beban 10% sampai 100%, didapatkan efisiensi rata-rata Two-Phase Interleaved Buck Converter sebesar 86,26%. Sedangkan untuk Buck Converter konvensional hanya mampu menghasilkan efisiensi rata-rata 78,89%. Pengujian charging baterai dengan menggunakan Two-Phase Interleaved Buck Converter menghasilkan arus konstan 2 Ampere dan tegangan konstan 12,6 Volt. Keseluruhan proses charging membutuhkan waktu selama 60,63 menit. Dari hasil simulasi maupun implementasi menunjukkan bahwa Two-Phase Interleaved Buck Converter dengan kontrol CC-CV mampu mengisi baterai lithium-polymer secara lebih efisien, stabil, dan aman dibandingkan dengan Buck Converter konvensional.
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The increasing use of electric vehicles has a significant influence on the demand for efficient and safe battery charging systems. Lithium-polymer (Li-Po) batteries are a popular energy storage solution due to their high energy density, light weight, and long lifespan. To maintain battery performance and safety, the Constant Current–Constant Voltage (CC/CV) method is often applied. However, the use of conventional Buck Converters in charging systems still has weaknesses such as low efficiency and high current ripple. The solution to this problem is to use the Two-Phase Interleaved Buck Converter topology which is able to divide the current into two phases, suppress the current ripple value, and increase the power conversion efficiency. This research aims to design, simulate, and implement a Two-Phase Interleaved Buck Converter for lithium-polymer battery charging applications. The Two-Phase Interleaved Buck Converter is able to automatically transition from CC mode (2 A) to CV mode (12.6 V). When implemented with load variations from 10% to 100%, the average efficiency of the Two-Phase Interleaved Buck Converter is 86.26%. Meanwhile, the conventional Buck Converter is only able to produce an average efficiency of 78.89%. Battery charging testing using the Two-Phase Interleaved Buck Converter produces a constant current of 2 Amperes and a constant voltage of 12.6 Volts. The overall charging process takes 60.63 minutes. The simulation and implementation results show that the Two-Phase Interleaved Buck Converter with CC-CV control is able to charge lithium-polymer batteries more efficiently, stably, and safely compared to the conventional Buck Converter.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Two-Phase Interleaved Buck Converter, Konvensional, Lithium-polymer Battery, Battery Charging, PSIM. Two-Phase Interleaved Buck Converter, Conventional, Lithium-polymer Battery, Battery Charging, PSIM.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2921 Lithium cells. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2943 Battery chargers.
Divisions:	Faculty of Electrical Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Thimoty Brenden Linelejan
Date Deposited:	20 Jul 2026 02:30
Last Modified:	20 Jul 2026 02:30
URI:	http://repository.its.ac.id/id/eprint/135531

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