Rosani, Aprilia Dini (2019) Desain dan Implementasi Constant Current Control DC Electronic Load dengan Topologi Bidirectional Buck-Boost Converter untuk Pengujian Karakteristik Baterai Lead Acid. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kebutuhan baterai akan terus meningkat seiring dengan perkembangan teknologi. Untuk mengevaluasi kinerja dari suatu baterai, baik pihak produsen maupun konsumen perlu melakukan pengujian. Metode yang paling umum adalah metode pembebanan konstan, yaitu baterai di charge dan discharge pada C-rating tertentu kemudian dievaluasi karakteristiknya. Akan tetapi penggunaan resistor sebagai alat pengujian tidak fleksibel dan menimbulkan rugi daya yang tinggi sehingga perlu digantikan dengan rangkaian DC electronic load. Salah satu parameter yang harus diketahui dalam pengoperasian baterai adalah state of charge (SoC) yaitu perbandingan energi yang tersisa dengan energi maksimumnya. Metode yang paling umum digunakan untuk mengestimasi SoC adalah coulomb counting dan open circuit voltage. Pada tugas akhir ini dirancang sebuah alat pengujian baterai menggunakan metode constant current untuk mendapat kurva karakteristik discharge baterai dan perhitungan estimasi SoC menggunakan metode coulomb counting dan OCV. Pada implementasinya digunakan topologi konverter bidirectional buck-boost yang memiliki efisiensi sebesar 82,98% pada mode operasi boost dan 83,21% pada mode operasi buck.
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Battery demand increases along with technological developments. Both the manufacturers and the consumers need to do the testing if they want to evaluate the battery performance. The most common method for testing the batteries is by constant loading. Using this method means that the battery is charged and discharged on a certain C-rating and then evaluated its characteristics. However, the use of resistor banks as a testing procedus is not flexible and suffer from high power losses. This conventional method needs to be replaced by a DC electronic loads. One of the parameters that must be known in battery management is State of Charge (SoC). SoC is the ratio of the remaining energy with its maximum energy. The most commonly used method for estimating SoC is coulomb counting and open circuit voltage. This paper presents a battery testing using the constant current method using bidirectional buck-boost converter topology to obtain the battery characteristic curve and calculation of the SoC using the coulomb counting method and OCV. The experimental results show that bidirectional buck-boost converter topology has efficiency of 82.98% in boost operating mode and 83.21% in buck operation mode.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSE 621.312 42 Ros d-1 2019 |
| Uncontrolled Keywords: | Baterai, coulomb counting, electronic load, Konverter bidirectional buck-boost, state of charge, Battery, coulomb counting, electronic load, bidirectional buck-boost converter, State of Charge |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2941 Storage batteries |
| Divisions: | Faculty of Industrial Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Rosani Aprilia Dini |
| Date Deposited: | 12 Jan 2023 02:17 |
| Last Modified: | 12 Jan 2023 02:21 |
| URI: | http://repository.its.ac.id/id/eprint/63673 |
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