Simanjuntak, Dioskuri Danisworo (2024) Rancang Bangun Buck Converter Untuk Unjuk Kerja Arus Discharge Baterai Lithium Ion. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini bertujuan untuk merancang dan membangun sistem buck converter untuk pengujian arus discharge baterai lithium ion. Penelitian ini mengimplementasikan sistem discharging baterai untuk menjaga arus keluaran baterai konstan Sistem ini terdiri dari komponen kontrol yang dapat memantau tegangan baterai dan mengendalikan arus masuk dan keluar dari baterai. Metode kontrol yang digunakan dalam penelitian ini adalah metode constant current untuk mengoptimalkan proses discharge. Sistem didesain sehingga dapat membaca arus keluar dan mengestimasi SOC dari baterai. Sistem yang dirancang menggunakan mikrokontroler STM32 sebagai pengatur sistem. Hasil perhitungan menghasilkan nilai komponen buck converter dengan nilai induktor sebesar 1 mH, dan kapasitor sebesar 470 μF. Hasil pengujian menunjukkan bahwa sistem dapat mengatur arus keluaran baterai dengan sistem constant current dengan efisiensi arus rata-rata sebesar 98.12% dengan efisiensi rata-rata buck converter yang digunakan sebesar 71,049%. Oleh karena itu, melalui sistem buck converter yang telah dirancang dapat disimpulkan bahwa sistem yang dirancang mampu mengatur discharging baterai lithium ion dari overdischarge, dengan efisiensi arus sebesar 98,12% dan kemampuan konversi tegangan sebesar 71,049%. Hasil pengujian discharge dengan sistem constant current menunjukkan bahwa setpoint arus yang digunakan pada proses discharge berbanding lurus dengan laju discharge baterai lithium ion akibat hubungan antara arus discharge dengan perubahan kapasitas tersimpan pada baterai.
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This research aims to design and build a buck converter system for testing lithium ion battery discharge current. This research implements a battery discharging system to maintain a constant battery output current. This system consists of a control component that can monitor battery voltage and control the incoming and outgoing current from the battery. The control method used in this research is the constant current method to optimize the discharge process. The system is designed to be able to read the discharge current and estimate the SOC of the battery. The system designed uses an STM32 microcontroller as a system controller. The calculation results use a buck converter component with an inductor value of 1mH and a capacitor of 470μF. The test results show that the system can regulate the battery output current using a constant current system with an average current efficiency of 98.12%, with an average efficiency of buck converter itself to be 71.049%. Therefore, it can be concluded that the designed system is able to regulate discharging of lithium ion batteries from overdischarge, with a current efficiency of 98.12% and a voltage conversion capability of 71.049%. Results from the system discharge capability using constant current shows that discharge current setpoint value is proportional to lithium ion battery discharge rate due to correlation between discharge current and change of battery’s stored capacity.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Baterai, Lithium ion, Buck Converter, Constant Current, Discharge; Battery, Lithium ion, Buck Converter, Constant Current, Discharge, |
| Subjects: | Q Science > QC Physics > QC100.5 Measuring instruments (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2921 Lithium cells. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5105.546 Computer algorithms |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Dioskuri Danisworo Simanjuntak |
| Date Deposited: | 06 Feb 2024 03:52 |
| Last Modified: | 06 Feb 2024 03:52 |
| URI: | http://repository.its.ac.id/id/eprint/106214 |
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