Arifin, Miftahul (2020) Desain Dan Implementasi Charging Equalizer Dengan Metode Master-Slave pada Baterai Lithium-Ion. Other thesis, InstitutTeknologi Sepuluh Nopember.
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Abstract
Baterai lithium-ion digunakan secara luas untuk berbagai aplikasi karena memiliki kepadatan energi yang tinggi, siklus hidup yang baik, tegangan sel yang lebih tinggi, perawatan yang lebih mudah, dan ramah lingkungan dibandingkan dengan jenis baterai lainnya. Untuk menghasilkan tegangan yang diharapkan baterai lithium-ion dapat disusun secara seri. Akan tetapi, penyusunan baterai secara seri ini harus memperhatikan kondisi tegangan tiap sel, karena penggunaan baterai secara seri terus menerus akan menyebabkan perbedaan tegangan tiap sel yang dapat menimbulkan kondisi undercharging pada salah satu sel baterai. Ketika kondisi tegangan setiap sel tidak sama, proses charging pun akan mempunyai waktu yang berbeda untuk mencapai kapasitas penuh masih-masing sel sehingga setiap sel baterai tersebut tidak akan penuh dalam waktu bersamaan. Jika hal tersebut dibiarkan, maka akan menimbulkan overcharging pada sel baterai. Oleh karena itu, pada penelitian ini diusulkan metode charging equalizer dengan metode master-slave sehingga tiap sel dapat diisi bersamaan secara merata tanpa khawatir terjadi overcharged maupun undercharged pada salah satu sel baterai. Pada implementasinya, digunakan dua topologi flyback konverter dengan mode step down dan step up yang memiliki efisiensi masing-masing 79,32% dan 78,36%. Hasil pengujian membuktikan equalizer sudah bekerja dengan baik, dengan perbedaan tegangan antar baterai hasil ekualisasi maksimal sebesar 0,01 Volt dan lama waktu proses ekualisasi ditentukan oleh perbedaan tegangan antar sel yang diuji.
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Lithium-ion batteries are widely used for a variety of applications because they have high energy density, good life cycle, higher cell voltage, easier maintenance, and are environmentally friendly compared to other types of batteries. To produce the expected voltage, lithium-ion batteries can be arranged in series. However, the arrangement of batteries in this series must pay attention to the voltage conditions of each cell, because the use of batteries in series continuously will cause voltage differences for each cell that can lead to undercharging conditions in one of the battery cells. When the voltage conditions of each cell are not the same, the charging process will also have a different time to reach the full capacity of each cell so that each battery cell will not be full at the same time. If this is left unchecked, this will cause overcharging of the battery cell. Therefore, this research proposes the charging equalizer method with the master-slave method so that each cell can be charged together evenly without worrying about overcharged or undercharged in one of the battery cells. In its implementation, two flyback converter topologies are used with step down and step up modes, which have efficiencies of 79.32% and 78.36% respectively. The test results prove the equalizer works well, with a maximum voltage difference between the results of the equalization battery of 0.01 Volts and the length of the equalization process time is determined by the difference in voltage between the cells tested
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Charging Equalizer, Flyback Konverter, Baterai Lithium-Ion, Bidirectional Cell Switch, Charging Equalizer, Flyback Converter, Lithium-Ion Battery, Bidirectional Cell Switch. |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2921 Lithium cells. |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Miftahul Arifin |
| Date Deposited: | 10 Aug 2020 06:10 |
| Last Modified: | 24 May 2023 15:33 |
| URI: | http://repository.its.ac.id/id/eprint/77225 |
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