Desain Smart Interleaved Single-Ended Primary-Inductor Converter (Sepic) Berbasis Kontrol Cerdas

Adimi, Akbar Roisul (2026) Desain Smart Interleaved Single-Ended Primary-Inductor Converter (Sepic) Berbasis Kontrol Cerdas. Masters thesis, Instititut Teknologi Sepuluh Nopember.

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Abstract

Optimasi penggunaan renewable energy membutuhkan konverter DC-DC yang efisien, stabil, dan adaptif terhadap perubahan kondisi operasi. Konverter jenis Single-Ended Primary-Inductor Converter (SEPIC) konvensional masih memiliki kelemahan berupa ripple arus yang tinggi dan respons dinamis yang kurang optimal. Penelitian ini bertujuan merancang dan mengimplementasikan Interleaved SEPIC berbasis kontrol Hybrid Fuzzy-PI untuk meningkatkan performa sistem. Metode penelitian meliputi perancangan matematis konverter, simulasi menggunakan MATLAB/Simulink, implementasi perangkat keras berbasis mikrokontroler, serta pengujian performa sistem. Hasil simulasi menunjukkan bahwa kontrol Fuzzy-PI mampu memperbaiki settling time dari 0.3355 s menjadi 0.2969 s dan menurunkan overshoot dari 99.27% menjadi 79.70%. Pada implementasi perangkat keras, kontrol Fuzzy-PI menghasilkan rise time sebesar 1.0894 s, settling time sebesar 5.8455 s, dan overshoot sebesar 16.65%, lebih baik dibandingkan kontrol PI dengan rise time 1.2454 s, settling time 6.5733 s, dan overshoot 22.12%. Selain itu, konfigurasi Interleaved dua fasa mampu mengurangi ripple arus dan meningkatkan kestabilan sistem.
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The development of power electronics systems requires DC-DC Converters that are efficient, stable, and adaptive under dynamic operating conditions. However, conventional SEPIC Converters still suffer from high current ripple and poor dynamic response. This research aims to design and implement an Interleaved Single-Ended Primary-Inductor Converter (SEPIC) based on Hybrid Fuzzy-PI control to improve system performance. The research methodology includes mathematical Converter design, simulation using MATLAB/Simulink, microcontroller-based hardware implementation, and closed-loop system performance testing. Simulation results show that the Fuzzy-PI controller improves the settling time from 0.3355 s to 0.2969 s and reduces overshoot from 99.27% to 79.70%. In hardware implementation, the Fuzzy-PI controller achieves a rise time of 1.0894 s, settling time of 5.8455 s, and overshoot of 16.65%, outperforming the conventional PI controller with a rise time of 1.2454 s, settling time of 6.5733 s, and overshoot of 22.12%. Furthermore, the two-phase Interleaved configuration successfully reduces current ripple and improves system stability. Therefore, the proposed Hybrid Fuzzy-PI method is proven to enhance the performance of the Interleaved SEPIC Converter compared to conventional PI control.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Interleaved SEPIC Converter, Hybrid Fuzzy-PI, DC-DC Converter, intelligent control, power electronics.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872.C8 Current converters
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20101-(S2) Master Thesis
Depositing User:	Akbar Roisul Adimi
Date Deposited:	28 Jul 2026 02:57
Last Modified:	28 Jul 2026 02:57
URI:	http://repository.its.ac.id/id/eprint/139153

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