Karismasani, Dian Akbar (2017) Desain dan Implementasi Soft-Switching Bidirectional DC-DC Converter dengan Metode Induktor Terkopel untuk Aplikasi Energy Storage System pada Pesawat Tanpa Awak Tenaga Surya. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian tentang Unmanned Aerial Vehicles (UAV) berbasis energi terbarukan sedang berkembang belakangan ini. Energi yang diperoleh dikelola dalam suatu Energy Storage System (ESS). Agar ESS tidak membebani UAV, maka desain yang ringan dan efisien diperlukan. Salah satu perangkat elektronika daya yang ada pada ESS adalah konverter DC-DC bidirectional. Konverter bidirectional merupakan perangkat elektronika daya yang mampu menaikkan atau menurunkan tegangan yang bergantung pada arah aliran daya yang mengalir pada perangkat. Dalam mendesain konverter DC-DC bidirectional yang baik pada UAV, terdapat dua syarat yaitu berukuran kecil dan efisiensi tinggi. Untuk meminimalisir ukuran, dapat dilakukan dengan mendesain frekuensi operasi switching setinggi mungkin. Namun, dengan semakin tinggi frekuensi operasi switching, maka total efisiensi pada konverter akan semakin kecil karena rugi switching berbanding lurus dengan frekuensi operasi. Maka dari itu, soft-switching pada converter dibutuhkan untuk mengurangi rugi pada saat switching. Selain itu dengan soft-switching, stres tegangan dan stress arus pada rangkaian dapat dikurangi sehingga reliabilitas converter semakin tinggi. Dalam penelitian ini akan dirancang dan diimplementasikan topologi konverter buck boost DC-DC bidirectional yang memanfaatkan couple inductor dengan kemampuan soft switching dan efisiensi yang tinggi di berbagai level beban dengan penurunan switching loss sebesar 35,73 % pada mode buck dan 25,96 % pada mode boost pada implementasi.
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Research about Unmanned Aerial Vehicles (UAV) that using
renewable energy is getting popular recently. The collected energies
managed in an Energy Storage System (ESS). proper design of ESS is
required to get lighter and efficient system to avoid more load on UAV.
One of the power electronics devices that exist in the ESS is a
bidirectional DC-DC converter. Bidirectional converter is power
electronic device that can step up or step down voltage that depend on
power flow direction. In designing a good bidirectional DC-DC
converter, there are two criteria that we must achive, that are small on
size and high efficiency. to reduce the size of converter, we can increase
the design rating of the operating switching frequency of bidirectional
converter. However, the increase on operating switching frequency will
generate greater losses due to fast switching activity. Furthermore this
will lower the total efficiency of the converter. Therefore, implementing
soft switching on the converter is essential In order to overcome the
switching losses. Moreover, the implementation of soft switching may
reduce the voltage stress and current stress on main converter circuit so
that the converter reliability can increase. This research will be focusing
on design and implementation of bidirectional buck boost DC-DC
converter topology that utilizes coupled inductor with soft switching
capability and high efficiency at various load levels with switching loss
decrease about 35,73 % on buck mode dan 25,96 % on boost mode.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Soft-Switching, induktor terkopel, konverter bidirectional. |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872 Electric current converters, Electric inverters. |
| Divisions: | Faculty of Industrial Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Dian Akbar Karismasani |
| Date Deposited: | 11 Aug 2017 03:19 |
| Last Modified: | 05 Mar 2019 04:43 |
| URI: | http://repository.its.ac.id/id/eprint/43026 |
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