Bowo, Emil Reginald (2025) Desain dan Implementasi Nonisolated High-gain DC-DC Converter untuk Aplikasi Photovoltaic. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sistem fotovoltaik saat ini sangat kompetitif dan efektif dalam mengurangi emisi CO2. Kemajuan teknologi fotovoltaik menjadikannya pilihan yang terjangkau untuk produksi energi berkelanjutan. Salah satu sistem yang digunakan untuk menghubungkan suatu photovoltaic farm ke grid adalah kumpulan mikroinverter dikarenakan kemudahan untuk perbaikan saat ada yang rusak. Tetapi, untuk menghubungkannya ke inverter diperlukan tegangan yang lebih tinggi daripada keluaran dari fotovoltaik. Untuk mengatasi hal ini, berbagai topologi konverter boost telah dikembangkan untuk mencapai rasio peningkatan tegangan yang tinggi. Namun, konverter boost seperti Boost Converter masih memiliki beberapa kekurangan, seperti efisiensi yang rendah. Dalam tugas akhir ini, penulis merancang dan mengimplementasikan sebuah Quadratic Boost Converter termodifikasi. Proses perancangan dimulai dari analisis teoritis, kemudian dilanjutkan dengan simulasi parameter komponen menggunakan perangkat lunak Power Simulator (PSIM) dan SIMULINK. Setelah tahap simulasi, dilakukan pembuatan prototipe konverter tersebut. Untuk melakukan tuning kontrol PI, dilakukan metode Ziegler-Nichols open loop dan juga metode genetic algorithm. Didapatkan hasil dari genetic algorithm mempunyai performa lebih baik daripada Ziegler-Nichols dengan settling time yang lebih cepat. Hasil pengujian menunjukkan bahwa konverter yang diimplementasi mampu beroperasi dengan gain mencapai 14.71, serta mampu menghasilkan daya keluaran antara 20 watt hingga 50 watt, dengan tegangan output yang dipertahankan konstan pada 400 volt. Berdasarkan performa tersebut, konverter dapat digunakan untuk sistem PV yang dihubungkan dengan mikroinverter.
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Photovoltaic systems are currently highly competitive and effective in reducing CO₂ emissions. Advancements in photovoltaic technology have made it an affordable option for sustainable energy production. One commonly used system to connect a photovoltaic farm to the grid is the use of multiple microinverters due to their ease of maintenance when failures occur. However, connecting them to an inverter requires a higher voltage than what is typically produced by the photovoltaic source. To address this, various boost converter topologies have been developed to achieve high voltage gain ratios. Nevertheless, conventional converters such as the Boost Converter still present several drawbacks, including low efficiency. In this final project, the author designed and implemented a modified Quadratic Boost Converter. The design process began with theoretical analysis, followed by component parameter simulations using Power Simulator (PSIM) and SIMULINK software. After completing the simulation stage, a prototype of the converter was constructed. Experimental results showed that the implemented converter could operate with a voltage gain of up to 14.71, and was capable of delivering output power ranging from 20 watts to 50 watts, while maintaining a constant output voltage of 400 volts. Based on this performance, the converter is suitable for use in photovoltaic systems connected to a DC bus.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Fotovoltaik , Mikroinverter, Konverter , Boost Converter, Quadratic Boost Converter, Kontrol PI. |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1010 Electric power system stability. Electric filters, Passive. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1087 Photovoltaic power generation T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK531 Current and voltage waveforms T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872 Electric current converters, Electric inverters. |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Emil Reginald Bowo |
| Date Deposited: | 25 Jul 2025 08:51 |
| Last Modified: | 25 Jul 2025 08:51 |
| URI: | http://repository.its.ac.id/id/eprint/121642 |
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