Desain dan Implementasi High-Gain Interleaved DC-DC Converter

Suparta, Kadek Ari Sattwika (2026) Desain dan Implementasi High-Gain Interleaved DC-DC Converter. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Percepatan transisi energi di Indonesia mendorong peningkatan pemanfaatan sumber energi baru terbarukan, salah satunya melalui Pembangkit Listrik Tenaga Surya (PLTS). Namun, tegangan keluaran panel surya yang relatif rendah memerlukan konverter DC-DC dengan kemampuan high gain agar dapat memenuhi kebutuhan tegangan pada berbagai aplikasi. Pada tugas akhir ini, dirancang dan diimplementasikan sebuah High-Gain Interleaved Boost Converter (HGIBC) sebagai konverter DC-DC berpenguatan tinggi. Proses perancangan dan simulasi dilakukan menggunakan perangkat lunak PSIM pada konfigurasi open-loop dan closed-loop dengan pengendali Proportional Integral (PI). Pengendali PI diterapkan untuk mempertahankan kestabilan tegangan keluaran terhadap perubahan beban maupun variasi tegangan masukan melalui penyesuaian duty cycle secara otomatis berdasarkan selisih antara tegangan keluaran aktual dan tegangan referensi. Dengan mekanisme tersebut, tegangan keluaran dapat dipertahankan mendekati nilai referensi sebesar 400 V ketika terjadi perubahan kondisi operasi. Pada tahap implementasi, sumber DC digunakan sebagai pengganti panel surya untuk memperoleh kondisi pengujian yang lebih stabil dan terkontrol. Hasil simulasi dan implementasi menunjukkan bahwa konverter mampu meningkatkan tegangan masukan 50 V menjadi tegangan keluaran 404,4 V dengan rasio konversi sebesar 8,08 kali. Selain itu, konverter mampu beroperasi secara stabil pada Discontinuous Conduction Mode (DCM) serta memberikan respons yang baik terhadap perubahan beban dan tegangan masukan. Efisiensi tertinggi yang diperoleh mencapai 82% pada kondisi pembebanan ringan. Hasil penelitian ini menunjukkan bahwa HGIBC berpotensi diterapkan pada sistem energi terbarukan skala kecil.
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The acceleration of Indonesia’s energy transition has encouraged the increased utilization of renewable energy sources, one of which is photovoltaic (PV) power generation. However, the relatively low output voltage of photovoltaic panels requires a high-gain DC-DC converter to meet the voltage requirements of various applications. This undergraduate thesis presents the design and implementation of a High-Gain Interleaved Boost Converter (HGIBC) as a high-gain DC-DC converter. The converter was designed and simulated using PSIM in both open-loop and closed-loop configurations with a Proportional-Integral (PI) controller. The PI controller was employed to maintain output voltage stability under load and input voltage variations by automatically adjusting the duty cycle based on the difference between the actual output voltage and the reference voltage. Through this control strategy, the output voltage was maintained close to the reference value of 400 V under varying operating conditions. During the implementation stage, a DC power supply was used instead of a photovoltaic source to provide stable and controlled testing conditions. The simulation and experimental results demonstrate that the converter successfully boosted the input voltage from 50 V to 404.4 V, achieving a voltage conversion ratio of 8.08. Furthermore, the converter operated stably in Discontinuous Conduction Mode (DCM) and exhibited satisfactory responses to load and input voltage variations. The highest efficiency obtained was 82% under light-load conditions. These results indicate that the proposed HGIBC has strong potential for small-scale renewable energy applications.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Boost Converter DC-DC, Interleaved Boost Converter, Photovotlaic, Elektronika Daya, Power Electronics.
Subjects:	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:	Kadek Ari Sattwika Suparta
Date Deposited:	21 Jul 2026 04:04
Last Modified:	21 Jul 2026 04:04
URI:	http://repository.its.ac.id/id/eprint/135687

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