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All Journal Mechatronics, Electrical Power, and Vehicular Technology Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Deyndrawan Sutrisno
Universitas Negeri Semarang
Agriculture, Biological Sciences & Forestry Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Medicine & Pharmacology Public Health

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Peningkatan Kompetensi Keahlian Siswa SMK dengan Pelatihan Konsep dan Instalasi Pembangkit Listrik Tenaga Surya Subiyanto Subiyanto; Mario Norman Syah; Abdurrakhman Hamid Al-Azhari; Rizky Ajie Aprilianto; Bagaskoro Saputro; Ubaidillah Siroj; Faiq Mananul Faqih; Icha Arifah Annisa; Nektar Cahayasabda; Setya Budi Arif Prabowo; Bayu Adi Pambudi; Deyndrawan Sutrisno
ABDI: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 7 No 2 (2025): Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Publisher : Labor Jurusan Sosiologi, Fakultas Ilmu Sosial, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/abdi.v7i2.1098

Abstract

Tren penggunaan energi baru terbarukan (EBT) telah mengalami peningkatan yang sangat signifikan setiap tahun. Realisasi aplikasi EBT di Indonesia didominasi oleh Pembangkit listrik tenaga surya (PLTS), hal ini dipengaruhi oleh letak geografis Indonesia yang berada pada garis khatulistiwa dengan iklim tropis. Untuk menunjang peningkatan penggunaan PLTS yang semakin tinggi, dibutuhkan upaya untuk meningkatkan jumlah tenaga profesional dibidang instalasi PLTS. Upaya peningkatan tenaga profesional dibidang PLTS dapat dilakukan melalui kegiatan pengabdian yang berfokus pada pelatihan profesi teknisi PLTS. Proses pelatihan dilakukan dengan metode ceramah dan praktikum sebagai tambahan materi bagi siswa jurusan Teknik Instalasi Tenaga Listrik (TITL) SMK Muhammadiyah Mungkid. Kombinasi antara materi pokok yang didukung dengan trainer interaktif PLTS sistem statis dapat berpotensi menghasilkan lulusan yang terampil dibidang instalasi PLTS. Potensi dari pelatihan ini telah dibuktikan melalui capaian hasil pre test dan post test kegiatan pelatihan yang menunjukkan adanya peningkatan yang signifikan dalam pemahaman dan keterampilan siswa dibidang instalasi PLTS.
Ray Tracing-Based Modeling of Bifacial Photovoltaic Systems in Greenhouse Agrivoltaics Endang Widiyawati; Subiyanto Subiyanto; Siti Ridloah; Budi Sunarko; Bagaskoro Saputro; Rizky Ajie Aprilianto; Mario Norman Syah; Abdurrakhaman Hamid Al-Azhari; Deyndrawan Sutrisno; Aisya Fathimah; Apriansyah Wibowo; I Gede Bagus Jayendra
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 2 (2026): April 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i2.510-524

Abstract

This work presents an enhanced ray tracing-based modeling framework to optimize bifacial photovoltaic energy generation and crop productivity within greenhouse environments. The proposed framework integrates a ray tracing-based optical and electrical model to simulate light dynamics and energy generation within greenhouse structures. The optical model incorporates Uniform Distribution of rear-irradiance (UF) and Non-Uniform Distribution of rear-irradiance (NUF) principles to simulate irradiance distribution, shading, and reflection, using Light Saturation Point (LSP) and Photosynthetically Active Radiation (PAR) measurements. The electrical model estimates energy yield using the LambertW function based on incident and transmitted light through photovoltaic arrays. Five types of greenhouse structures using plastic and SG80 materials are analyzed to assess their impact on system performance under various conditions. The evaluation showed that integrating bPV increased rear-side energy captured by 25-30%. The optimal configuration was achieved by combining a plastic cover with a checkerboard pattern, resulting in up to 5% higher performance than the 35° tilt setup and offering enhanced light distribution uniformity. Although the average soil irradiance of 170.801 W/m² slightly exceeded the light saturation threshold of 164.7 W/m², it remained within a safe range that supports efficient photosynthesis without causing photoinhibition.
An efficient motion planning framework for four-wheel steering autonomous vehicles using Lazy Edge-Based A* and adaptive RK4-MPC Deyndrawan Sutrisno; Subiyanto Subiyanto; Arimaz Hangga; Aldias Bahatmaka; Nur Azis Salim; Elfandy Yunus; Muhammad Hilmi Farras; Setya Budi Arif Prabowo
Journal of Mechatronics, Electrical Power, and Vehicular Technology Vol 17, No 1 (2026)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/j.mev.2026.1073

Abstract

This work presents an efficient motion planning framework for four-wheel steering (4WS) autonomous vehicles operating in complex and unknown environments. To improve planning efficiency, the framework employs a lazy edge-based A* (LEA*) algorithm for global path planning, adaptive fourth-order Runge–Kutta model predictive control (RK4-MPC) for trajectory tracking and motion execution, and wheel force distribution control (WFDC) to ensure stable motion during steering maneuvers. Quantitative results show that the LEA* reduces planning time by 87.5 % edge evaluations by 96.1 % compared to conventional A*, while improving path smoothness by 51 %. The integration of adaptive RK4-MPC with WFDC achieves the lowest tracking error and heading error of 34.8 % and 37.5 % compared to OMNI, and 28.6 % compared to S-4WS. In addition, the proposed method reduces the wheel slip ratio 88.4 % better than OMNI and 46.7 % better than S-4WS, while also reducing yaw acceleration by 50 % compared to both baselines. For computational efficiency, the proposed framework achieves a search time of 0.5234 s, 83.1 % faster than OMNI, and 37.1 % faster than S-4WS, and an optimization time of 1.4892 s, 30.3 % faster than S-4WS. Overall, the proposed framework improves motion planning efficiency while maintaining smooth and stable motion in simulation.
Co-Authors Abdurrakhaman Hamid Al-Azhari Abdurrakhman Hamid Al-Azhari Aisya Fathimah Aldias Bahatmaka Apriansyah Wibowo Arimaz Hangga Bagaskoro Saputro Bagaskoro Saputro Bayu Adi Pambudi Budi Sunarko Elfandy Yunus Endang Widiyawati Faiq Mananul Faqih I Gede Bagus Jayendra Icha Arifah Annisa MARIO NORMAN SYAH Muhammad Hilmi Farras Nektar Cahayasabda Nur Azis Salim Rizky Ajie Aprilianto Setya Budi Arif Prabowo Siti Ridloah Ubaidillah Siroj