Al Aqaid, Mizan (2021) Desain Dan Implementasi Sistem Kontrol Tegangan Flyback Converter Menggunakan Kontroler Logika Fuzzy Sebagai Pembangkit Dielectric-Barrier Discharge (DBD) Pada Generator Ozon. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Subsistem HVDC pada alat sterilisator di pasaran belum memiliki fitur untuk kontrol tegangan. Tegangan berpengaruh terhadap waktu pembentukan ozon dan kadar ozon yang dihasilkan, sehingga diperlukan kontrol tegangan untuk menyesuaikan kebutuhan sterilisasi. Pada subsistem HVDC dirancang menggunakan topologi konverter flyback karena memiliki kemampuan isolasi elektris antara sisi input dan output.
Pada konverter DC-DC terdapat banyak variabel komponen parasitik, rugi-rugi yang tidak terdeteksi dan operasi pensaklaran yang membuat sistem konverter DC-DC beroperasi nonlinear sehingga sulit dimodelkan secara matematis dan membutuhkan perhitungan yang kompleks, maka penggunaan logika fuzzy sebagai kontroler diharapkan menjadi solusi atas permasalahan tersebut.
Hasil realisasi dari desain konverter flyback memiliki presentase error tegangan keluaran yang tinggi yaitu rata-rata 125%. Hal tersebut dibuktikan pada pengujian transformasi. Tingginya nilai error tersebut disebabkan beberapa hal diantaranya komponen parasitik, desain trafo, serta rugi-rugi yang tidak dapat didefinisikan. Hal itu dapat mengurangi efisiensi konverter flyback dan operasinya menjadi nonlinear. Hasil implementasi logika fuzzy sebagai sebagai pengontrol tegangan keluaran konverter flyback telah dibuktikan melalui simulasi. Dengan menggunakan kontroler logika fuzzy, untuk mencapai nilai tegangan referensi yang diinginkan membutuhkan waktu rata-rata sebesar 4,2 ms. Kemudian rata-rata presentase error tegangan output yaitu 0,85 %. Ketika konverter flyback diimplementasikan pada plant generator ozon, dengan tegangan 2,5 kV menghasilkan konsentrasi ozon sebesar 0.8 ppm.
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The HVDC subsystem on the sterilizer on the market does not yet have a feature for voltage control. Voltage affects the time of formation of ozone and the level of ozone produced, so it is necessary to control the voltage to adjust to the need for sterilization. The HVDC subsystem is designed using a flyback converter topology because it has electrical isolation between the input and output sides.
In the DC-DC converter there are many parasitic component variables, undetected losses and switching operations that make the DC-DC converter system operate nonlinearly so that it is difficult to model mathematically and requires complex calculations, so the use of fuzzy logic as a controller is expected to be a solution for this problem. the problem.
The result of the realization of the flyback converter design has a high output voltage error percentage, which is an average of 125%. This is proven in the transformation test. The high error value is caused by several things including parasitic components, transformer design, and losses that cannot be defined. It can reduce the efficiency of the flyback converter and its operation becomes nonlinear. The results of implementing fuzzy logic as a flyback converter output voltage controller have been proven through simulation. By using a fuzzy logic controller, to achieve the desired reference voltage value takes an average of 4.2 ms. Then the average percentage error of the output voltage is 0.85%. When the flyback converter is implemented in the ozone generator plant, with a voltage of 2.5 kV it produces an ozone concentration of 0.8 ppm.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Generator Ozon, Konverter Flyback, Logika Fuzzy, Ozone Generator, Dielectric-Barrier Discharge (DBD), Flyback Converter, Fuzzy Logic |
| Subjects: | Q Science > QA Mathematics > QA9.64 Fuzzy logic T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2851 Voltage regulators. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3070 Automatic control T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7868.P6 Power supply T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872 Electric current converters, Electric inverters. |
| Divisions: | Faculty of Vocational > 36304-Automation Electronic Engineering |
| Depositing User: | Mizan Al Aqaid |
| Date Deposited: | 23 Aug 2021 08:04 |
| Last Modified: | 23 Aug 2021 10:34 |
| URI: | http://repository.its.ac.id/id/eprint/89453 |
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