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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Informatika dan Teknik Elektro Terapan Journal of Multidisciplinary Applied Natural Science Prosiding Seminar Nasional Hasil Penelitian Sains, Teknik dan Aplikasi Industri Fakultas Teknik Universitas Lampung Electrician : Jurnal Rekayasa dan Teknologi Elektro Analit: Analytical and Environmental Chemistry Nemui Nyimah Analit: Analytical And Environmental Chemistry
Ahmad Saudi Samosir
Universitas Lampung
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Other

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Analisis Kinerja Teknis dan Potensi Energi Sistem Fotovoltaik Atap Berdasarkan Luas Atap Gedung Fakultas Teknik Universitas Lampung gusmedi, herri; Samosir, Ahmad Saudi; Despa, Dikpride
Prosiding Seminar Nasional Ilmu Teknik Dan Aplikasi Industri Fakultas Teknik Universitas Lampung Vol. 8 (2025): Prosiding Seminar Nasional Ilmu Teknik dan Aplikasi Industri (SINTA) 2025
Publisher : Fakultas Teknik Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Transisi menuju energi bersih kini menjadi prioritas nasional yang selaras dengan target bauran energi terbarukan. Institusi pendidikan tinggi memegang peran strategis dalam percepatan adopsi dan diseminasi teknologi ini. Penelitian ini bertujuan untuk menganalisis kinerja teknis dan potensi hasil energi dari sistem Fotovoltaik (PV) atap yang dirancang pada lingkungan kampus dengan topologi atap yang terfragmentasi. Menggunakan perangkat lunak simulasi HelioScope, penelitian memodelkan sistem PV berkapasitas total 1,40 MWp yang terdistribusi di berbagai gedung Fakultas Teknik, Universitas Lampung. Evaluasi kinerja mengacu pada metrik standar internasional, meliputi Performance Ratio (PR) dan Specific Yield (SY). Hasil simulasi memproyeksikan produksi energi tahunan mencapai 1.738 MWh (atau 1,74 GWh). Sistem menunjukkan kinerja yang solid dengan nilai Specific Yield sebesar 1.244,2 kWh/kWp dan Performance Ratio sebesar 79,1%. Analisis rugi-rugi (losses) mengidentifikasi temperatur sebagai faktor dominan penurunan kinerja (10,7%), diikuti oleh rugi-rugi ketidaksesuaian (mismatch) sebesar 3,4% yang timbul akibat karakteristik desain multi-atap. Studi ini menyimpulkan bahwa pemanfaatan atap gedung yang terfragmentasi di lingkungan kampus merupakan strategi yang layak untuk mencapai kapasitas pembangkitan skala besar. Kinerja sistem yang tetap optimal, terlepas dari kompleksitas desain, mengonfirmasi potensi signifikan PV atap sebagai pilar desentralisasi energi di kawasan urban.
Design and implementation of a buck converter-based PV emulator using dynamic evolution control Samosir, Ahmad Saudi; Despa, Dikpride; Gusmedi, Herri; Ferbangkara, Sony
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 17, No 1: March 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v17.i1.pp809-822

Abstract

This paper presents the design, simulation, and experimental implementation of a photovoltaic (PV) emulator based on a buck converter controlled using the dynamic evolution control (DEC) technique. The proposed system accurately reproduces the nonlinear current-voltage (I-V) and power-voltage (P-V) characteristics of a commercial GREEN CELL SM100-18P (100 Wp) PV module under standard test conditions (1000 W/m2, 25 °C). The electrical characteristics of the reference module are embedded in the controller through a lookup table (LUT), which is integrated with the DEC algorithm to enable adaptive real-time regulation of output voltage and current. System modeling and validation are first conducted in MATLAB/Simulink to analyze steady-state and transient performance. A hardware prototype based on an XL4016 buck converter and Arduino Nano microcontroller is then implemented, with real-time monitoring provided via an ILI9341 TFT display. Experimental results show that the emulator achieves a maximum power deviation of 0.8%, a normalized root mean square error (RMSE) of 0.015, a settling time of approximately 12 ms, overshoot below 1.5%, voltage ripple under 2%, and peak conversion efficiency of 94% near the MPP region. These results confirm that the proposed PV emulator provides accurate static and dynamic reproduction of PV characteristics, offering a low-cost, stable, and repeatable platform for laboratory-scale evaluation of PV-related power electronic converters.
Design and simulation of an electric vehicle charger with integrated interleaved boost converter and phase-shifted full-bridge converter using MATLAB/Simulink Samosir, Ahmad Saudi; Sutikno, Tole; Huda, Alfin Fitrohul; Mardiyah, Luthfiyyatun
International Journal of Electrical and Computer Engineering (IJECE) Vol 16, No 2: April 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v16i2.pp687-698

Abstract

This paper presents the design and simulation of a high-efficiency electric vehicle (EV) charger that integrates a two-phase interleaved boost converter (IBC) with a phase-shifted full-bridge (PSFB) converter using MATLAB/Simulink. In contrast to existing studies that treat these converter stages independently, this work introduces a unified AC–DC–DC architecture that simultaneously minimizes input current ripple, improves DC-bus stability, and enables soft-switching operation for reduced switching losses. The values of the inductors and capacitors are derived analytically based on ripple constraints and switching frequency considerations, and example calculations are explicitly provided. Simulation results demonstrate that the proposed charger maintains a stable 600-V DC bus with less than 2% voltage ripple, delivers a controlled charging current of 100 A with 3 A ripple, and achieves an overall efficiency of 95%. These findings indicate that the integrated interleaved–PSFB topology provides superior conversion efficiency and power quality, making it a strong candidate for future EV fast-charging infrastructure.
Co-Authors Abdul Halim Mohd Yatim Abdul Halim Mohd Yatim Abdul Haris Ageng Sadnowo Repelianto Ahmad Pauzi, Gurum Al Fariziy, M. Naufal Anjarwati, Arie Arie Anjarwati Dikpride Despa Endah Komalasari Gurum Ahmad Pauzi Herri Gusmedi Huda, Alfin Fitrohul Luthfiyyatun Mardiyah Mardiyah, Luthfiyyatun Martinus Melzi Ambar Mazta Muhammad, Meizano Ardhi NFN Taufiq Nik Rumzi Nik Idris Nisa, Mia Abi Noer Soedjarwanto Pauzi, Gurum Ahmad Putra, Rizki Pratama Rizky Ajie Aprilianto Sedjahtera, A Sony Ferbangkara Sony Ferbangkara Sri Purwiyanti Sri Ratna Sulistiyanti Sri Wahyu Suciyati Sumadi - Surtono, Arif Syafriadi Syafriadi Syaiful Alam Tole Sutikno Ubaidah ubaidah ubaidah Wan Novri Saputra Wasinton Simanjuntak Wasinton Simanjuntak