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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) KUKILA TREUBIA ZOO INDONESIA JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) Journal of Energy and Electrical Engineering (JEEE) BERNAS: Jurnal Pengabdian Kepada Masyarakat Zoo Indonesia JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) Madani : Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Siliwangi Jurnal Pengabdian Mitra Masyarakat BIO PALEMBANICA Jurnal Teknokes
Imam Taufiqurrahman
Yayasan Kutilang Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Neuroscience Nursing Public Health Social Sciences Veterinary Other

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Harmonic reduction in power grids: implementing a four-legged multilevel inverter as an active power filter using model predictive control Andang, Asep; Nursuwars, Firmansyah Maulana; Rahayu, Andri Ulus; Taufiqurrahman, Imam; Paryono, Ervan
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 2: June 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i2.pp922-935

Abstract

This study explores the implementation of a five-level cascaded three-phase four-wire inverter as an active power filter to mitigate harmonics in power grids. Harmonic components in the load current are transformed and filtered to create a reference current, which serves as the foundation for designing the inverter’s switching pattern. The predicted current, generated through circuit modeling, is compared with the reference current using the model predictive control (MPC) method. The accuracy of this approach is evaluated using a cost function that measures the difference between the predicted and reference currents. Simulation results reveal that the application of the hybrid power filter can effectively suppress harmonics, reducing the total harmonic distortion (THD) to below 5%, thereby meeting power quality standards. Furthermore, it addresses load imbalances, ensuring that the phase currents at the source remain nearly equal. Additionally, the hybrid power filter significantly decreases the neutral current, reducing it to just one-tenth of its original value. While MPC has demonstrated its effectiveness in controlling power converters and multilevel inverters, its application to active power filters remains underexplored. This study investigates the potential of a four-legged multilevel inverter with MPC to enhance power quality by reducing harmonics in three-phase four wire systems.
An IoT-Based Framework for Real-Time Monitoring and Evaluation of Child Growth to Support Indonesia’s Stunting Reduction Initiative Andri Ulus Rahayu; Taufiqurrahman, Imam; Arie Gustaman, Rian; Fittur Farabi Sanaz
Jurnal Teknokes Vol. 18 No. 2 (2025): June
Publisher : Jurusan Teknik Elektromedik, Politeknik Kesehatan Kemenkes Surabaya, Indonesia

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

Abstract

Stunting remains a significant public health concern in Indonesia, leading to lifelong developmental and economic disadvantages. This study aims to address limitations in conventional child growth monitoring by developing and validating an IoT-based system that integrates ultrasonic and load cell sensors, an ESP32 microcontroller, RFID identification, and cloud-based data management. The system enables automated, real-time measurement and digital record-keeping, accessible via a user-friendly dashboard. Empirical validation was conducted on 35 children at local Integrated Health Service Post (Posyandu), showing high measurement accuracy (±0.53 cm for height, ±0.08 kg for weight), rapid average data transmission (2.05 seconds), and strong agreement with manual gold standards (p > 0.05). Usability evaluations indicated high satisfaction among health cadres, with streamlined workflows reducing time and staff requirements. The findings demonstrate that the proposed IoT-based system offers an effective, scalable, and economically viable solution for improving child growth monitoring and supporting stunting prevention programs in community health settings.
OPTIMALISASI LAHAN PERIKANAN DENGAN METODE BIOFLOK DI DESA SUKAMULYA KABUPATEN CIAMIS Taufiqurrahman, Imam; Rahayu, Andri Ulus; Manik, Visi Tinta
Jurnal Pengabdian Mitra Masyarakat Vol 5, No 1 (2025): Edisi September
Publisher : Universitas Islam Sumatear Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/jurpammas.v5i1.12025

Abstract

Indonesia merupakan penghasil budidaya ikan terbesar saat ini, berdasarkan UN FAO pada tahun 2016, indonesia menduduki peringkat kedua dengan penghasilan 22,2 juta ton ikan setelah cina. Produksi budidaya tambak air tawar meningkat dari 1.601 ton pada tahun 2001 menjadi 526.832 ton pada tahun 2020, tumbuh pada tingkat tahunan rata-rata 334,50 persen. Provinsi Jawa Barat merupakan budidaya ikan air tawar yang mapan, termasuk Kabupaten Ciamis menjadi dengan jumlah produksi sebesar 51.626 ton. Salah satunya Desa Sukamulya, Kecamatan Cihaurbeuti adalah potensi budidaya dibidaya perikanan. Kelompok tani yang bergerak di bidang budidaya ikan tawar yang bertugas untuk mewadahi para pelaku budidaya ikan di Dusun Citengah yaitu Kelompok Tani Berkah Mulya (KTBM). Setiap anggota kelompok memiliki kolam dengan ukuran 100 m2 hingga 450 m2 dengan sistem pengairan secara seri. Selain itu, dilakukan pelatihan dan pendampingan secara teknis dalam budidaya ikan dengan penggunaan metode ini serta memberikan pelatihan dan pendampingan manajemen usaha dan pemasaran digital. Penerapan program ini pengetahuan mitra meningkatan sebesar 75,3% anggota mitra mampu memahami dan mengoperasikan metode bioflok untuk budidaya ikan dengan berbasis teknologi IoT. Pada aspek produksi, pengetahuan dan manajemen usaha serta pemasaran digital mitra berhasil meningkatkan pendapatan sebesar 57% disebabkan oleh perangkat budidaya ikan sistem bioflok berbasis IoT.
An Overview of the Status of Grey-tailed Tattler Tringa brevipes (Charadriiformes: Scolopacidae) in Sumatra, Indonesia Taufiqurrahman, Imam; Abdillah, Hasri; Mulyana, Deny; Saumanuk, Ismael; Setiawan, Arif
BIO PALEMBANICA Vol 2 No 2 (2025): Bio Palembanica
Publisher : Lembaga Penelitian, Pengabdian Kepada Masyarakat dan Kepustakaan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36982/bio.v2i2.5911

Abstract

The Grey-tailed Tattler Tringa brevipes is a migratory shorebird species that migrates to the southern hemisphere, including Indonesia. In Sumatra, the species was previously considered a vagrant, but new records suggest it may be an uncommon visitor. A study compiled 26 sightings of Tringa brevipes in Sumatra from 1999 to 2024, with most records coming from the east coast of the island. The species was found in small numbers, with the largest flock consisting of 20 individuals. Based on these records, it is recommend reclassifying the species' status to "uncommon visitor" rather than "vagrant." Further research is needed to understand the species' migration patterns and habitat use in Sumatra.
Dashboard Berbasis Web untuk Pemantauan Status Gizi Anak: Klasifikasi Otomatis Z-Score WHO, Visualisasi Longitudinal, dan Evaluasi Kegunaan Gustaman, Rian Arie; Rahayu, Andri Ulus; Taufiqurrahman, Imam; Sanaz, Fittur Farabi
JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) Vol. 7 No. 2 (2025): Desember 2025
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jasiek.v7i2.16079

Abstract

This study addressed the need for timely monitoring of child nutritional status by designing, implementing, and evaluating a web-based dashboard. The system captured demographic and anthropometric records, automated status classification using World Health Organization z-scores, and visualized longitudinal growth trajectories. Development followed an iterative, user-centered process and was validated with synthetic records and formative testing by community health workers. Functional testing confirmed correct operation of data entry, classification, and reporting. Against reference calculations, category assignments matched all twenty test cases. Performance profiling indicated responsive interaction (time to first byte about 180 milliseconds; time to interactive about 1.3 seconds), and usability measured with the System Usability Scale fell in the “good” range. Findings suggested readiness for community use and a scalable foundation for future integration and field deployment.
Co-Authors A.A. Ketut Agung Cahyawan W Abdillah, Hasri Adiwilaga, Anugrah Aji, Tulus Wicaksono Bayu Andri Ulus Rahayu Arie Gustaman, Rian Arif Setiawan Aripin Aris Risnandar, Muhammad Asep Andang, Asep Bas van Balen Bas van Balen Colin Trainor Dwi A Sujatmiko Faridah, Linda firmansyah maualana sugiartana nursuwars Firmansyah MSN Fittur Farabi Sanaz Gustaman, Rian Arie Hary Susanto I Ketut Suada Ifkar Usrah Mohammad, Riza Fajar Muhammad A Utomo Mulyana, Deny Mutiarasari, Nurul Risti Naim, Nidar Nadrotan Nurdiansyah, Rian Nursuwars, Firmansyah Maulana Nurul Hiron, Nurul Paryono, Ervan Risnandar, M Aris Risnandar, Muhammad Aris Sanaz, Fittur Farabi Saumanuk, Ismael Tikupasang, Enov Visi Tinta Manik