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All Journal Jurnal Sains dan Teknologi Jurnal Teknik Elektro Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika PROtek : Jurnal Ilmiah Teknik Elektro Jurnal Pengabdian UntukMu NegeRI JET (Journal of Electrical Technology) Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Sinergitas PkM & CSR KAIBON ABHINAYA : JURNAL PENGABDIAN MASYARAKAT Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Unri Conference Series: Community Engagement Journal of Applied Materials and Technology IGKOJEI: Jurnal Pengabdian Masyarakat Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) SAINSTEK Sewagati BATOBO: Jurnal Pengabdian Kepada Masyarakat
Rosma, Iswadi Hasyim
Jurusan Teknik Elektro, Fakultas Teknik, Universitas Riau
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Veterinary Other

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Optimasi Sistem Pengendalian Frekuensi Dengan Metode Kontrol Optimal Linier Quadratic Regulator Pada PLTU Muhammad Riski Hanifa; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

A good and efficient generating system is essential to meet the growing demand of electricity. Stability is required in the generation process to operate optimally. One of important stability parameters is frequency stability. This stability can be achieved by controlling the frequency of power plant (i.e. steam power plant). Turbine-generator is one of the important parts in generating system where it converts mechanical energy into electrical energy. On a turbine-generator, frequency becomes the main reference parameter that identifies the normal or abnormal condition of power plant. The main problem in the power plant is sudden load changes that result in abnormal system frequency (to drop or to rise). This abnormal frequency may cause damage on part of power plant, therefore it is necessary to adjust the flow rate of steam into the turbine to obtain the nominal speed of turbine by putting a proper gain controller. The gain was estimated by using LQR method. It has been found from the results that power plant with proper gain controller is better to bring the frequency back to normal compare to without controller.Keywords : Frequency, steam power plant, Optimal Control, Matlab/Simulink, LQR
Penerapan Metode Tegangan Harmonisa Ketiga Untuk Proteksi Gangguan Tanah Pada Stator Ranto Ramandana; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Short circuit from phase to ground (ground fault) occurring in one of the stator windings of the synchronous generator can cause serious damage to the winding. Therefore, graund fault protection system is required to protect the stator winding of the generator. The method used is to analyze the magnitude of the ratio of the third harmonic voltage of the generator terminal and the generator neutral (V3n/(V3n+V3t)). This method is proven to be able to protect ground fault near neutral point or when low fault current occurred where conventional method is not able to react. To understand that the method is able to protect the fault near the neutral point then the simulation of faults were varied by the variation of fault resistance. It has been found from the result of the simulation that the method has capability to protect 60% stator winding from neutral. The 40% of unprotected winding will be protected by using conventional method in order to have a100% protection performance.Keywords: matlab, stator ground fault, the third harmonic protection
Rancang Bangun Aerator Menggunakan Penggerak Motor Satu Fasa Dan Sistem Otomatisasi Berbasis Smart Relay Abdul Gafar Arsaf; Iswadi Hasyim Rosma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Oxigen in the water is obtained from 2 processes specifically the first is, photosynthesis by water plants and the second is aeration which included in the diffusion process. Aerator is a device that serves to produce oxygen through the diffusion process for the needs of living creatures in the water. Aerators themselves have several types, those are ; gravity aerator (gravity influence), surface aerator (surface), diffusier aerator (mixing), turbine aerator (windmill), and combination. The aerators which designed here are aerator type of turbine (turbine aerator) similar to the aerator used in the research area generally. The purpose in the making of an aerator with this automatic system is to simplify the management and also to reduce the operational costs of the ponds. Aerator is made using 2 pieces of waterwheel with each pin having the same 6 blades with a mill used in ponds at the research site. As the basis of the automation system, the aerator is a smart relay programmed with 2 input which are the light sensor and the sensor temperature parameters in the programming obtained from the results of research on dissolved oxygen levels in the water. From the results of the testing, when dissolved oxygen levels are relatively high in the range of 30mg/L light intensity > 100,000 lux and for temperature < 350 C. Then the results of the data retrieval is made into the input parameters in the programming. The results of the device testing shows that the performance which is as expected. Aerator can work well in increasing oxygen from 8mg/L – 14.4mg/L in 45 minutes and the controller work as programmed when dissolved oxygen level below standard with indication of light intensity < 40 lux and temperature >350 C.Keyword : Aerator, Dissolve Oxygen, Smart Relay
Pembangunan Pembangkit Listrik Tenga Surya untuk Petani Sayur di Desa Kualu Nenas Kabupaten Kampar Iswadi Hasyim Rosma; Feblil Huda; Agus Ika Putra; Arisman Adnan; Ahmad Jamaan
KAIBON ABHINAYA : JURNAL PENGABDIAN MASYARAKAT Vol. 6 No. 2 (2024)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/ka.v6i2.6629

Abstract

This article aims to describe community service activities carried out by the implementation team in Kualu Nenas village, Tambang District, Kampar Regency, Riau. As a village and sub-district that is very close to the city of Pekanbaru which is the capital of Riau province, this village has a very important role as a supplier of vegetable commodities. One of the difficulty faced by farmer groups is that during dry season (sunny), water sources, as one of the important factors in vegetable crops, are very difficult to obtain. To overcome this, this community engagement aims to build the solar photovoltaic generation system as an energy source for submersible pump motors to draw water from the location of water sources and deep well made by farmers on their land. With this solar PV generation system, agricultural locations that are remote from national grid (PT PLN) supply can still operate their pump motors to get water. The stages of this activity are divided into several stages, including surveying the solar PV system construction site, designing solar PV generation system and building solar PV generation system so that it can be operated properly. This activity could run well with the support and cooperation of farmer partners who are actively involved in every stage conducted.
Audit Energi Listrik pada Gedung Masjid Arfaunnas Universitas Riau dan Potensi Penghematan Konsumsi Energi Listrik Berbasis Internet of Things Hidayat, Rahmad; Hasyim Rosma, Iswadi; Hamzah, Amir; Marpaung, Horas; Ika Putra, Agus
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 2 No 1: BATOBO: Juni 2024
Publisher : Jurusan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/batobo.2.1.51-60

Abstract

Arah kebijakan utama pemerintah terkait energi nasional adalah konservasi energi untuk meningkatkan efisiensi penggunaan dan pemanfaatan energi oleh konsumen. Dalam rangka konservasi energi tersebut maka diperlukan audit energi, yaitu suatu metode untuk menghitung tingkat konsumsi energi suatu banguan gedung. Artikel ini bertujuan untuk memaparkan kegiatan pengabdian yang dilakukan oleh tim pengabdian dalam rangka melakukan audit energi dan menganalisis potensi penghematan energi di Gedung Masjid Arfaunnas Universitas Riau. Intensitas Konsumsi Energi (IKE) di Masjid Arfaunnas Universitas Riau pada bulan Januari – Maret 2024 sebelum dilakukan upaya penghematan diperoleh hasil dengan rentang data 6 – 9 kWh/m2/tahun. Hasil IKE tersebut menurut kriteria Permen ESDM No. 13 tahun 2012 pada Gedung Ber-AC termasuk kategori efisien. Sedangkan untuk ruangan wudhu, ruang tamu, ruang utama lantai 2 dan teras. Untuk kamar gharim dan ruang utama lantai 1 termasuk kategori tidak efisien karena IKE > 8,5 kWh/m2/tahun. Setelah dilakukan upaya penghematan, diperoleh hasil IKE dengan rentang data 3,99 – 5,98 kWh/m2/tahun. Hasil tersebut menunjukkan bahwa IKE di Masjid Arfaunnas Universitas Riau setelah dirancang potensi penghematan lampu dan AC termasuk kategori sangat efisien.
Pengadukan Pupuk Cair Otomatis Berbasis Mikrokontroler pada Sistem Fertigasi Pintar ROSMA, ISWADI HASYIM; SUKMA, DIAN YAYAN; SARE, SATRIA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 9, No 4: Published October 2021
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v9i4.827

Abstract

ABSTRAKPengadukan pupuk cair secara manual memiliki kekurangan, yaitu rendahnya akurasi campuran hanya sekitar 50% sehinggga dibutuhkannya pengadukan pupuk otomatis untuk meningkatkan akurasi campuran pupuk dan air. Tujuan penelitian ini adalah untuk melakukan perancangan, pembuatan, serta analisis sistem pengadukan pupuk otomatis berbasis mikrokontroler. Bagian dari sistem pengaduk pupuk dibagi menjadi dua bagian utama. Bagian pertama adalah komponen mekanik yang terdiri dari tangki air, tangki pupuk cair, dan motor pengaduk. Sedangkan bagian kedua adalah sistem kendali berupa mikrokontroler arduino untuk mengatur volume air, volume pupuk cair, dan lama pengadukan. Dari hasil pengujian didapatkan bahwa keberhasilan pencampuran pupuk cair EM4 adalah sebesar 99,561%, sedangkan untuk pupuk hijau sebesar 98,551%. Sebagai kesimpulan, sistem fertigasi pintar yang dibangun dapat beroperasi dengan baik dan akurasi diatas 90%.Kata kunci: Sistem Fertigasi, Arduino, Pengadukan, Pupuk cair, Air ABSTRACTManual mixing of liquid fertilizers has drawbacks, namely the low accuracy of the mixture, only about 50%, so that automatic fertilizer mixing is needed to increase the accuracy of the fertilizer and water mixture. The purpose of this study was to design, manufacture, and analyze a microcontroller-based automatic fertilizer mixing system. The part of the fertilizer mixing system is divided into two main parts. The first part is a mechanical component consisting of a water tank, a liquid fertilizer tank, and a stirrer motor. While the second part is a control system in the form of an Arduino microcontroller to regulate the volume of water, the volume of liquid fertilizer, and the stirring time. From the test results, it was found that the success of mixing EM4 liquid fertilizer was 99.561%, while for green manure it was 98.551%. In conclusion, the smart fertigation system built can operate well and the accuracy is above 90%.Keywords: Fertigation System, Arduino, Stirring, Liquid Fertilizer, Water
Peran Gizi Seimbang dan Akses Kesehatan dalam Pencegahan Stunting pada Anak Balita di Desa Karya Indah Marpaung, Noveri Lysbetti; Nurhalim, Nurhalim; Sukma, Dian Yayan; Hutabarat, Sakti; Ervianto, Edy; Rosma, Iswadi Hasyim; Ujang, Febrizal; Demiza, Khosfikra; Ferdian, Fhinta Syahila; Valendino, Muhammad; Fakhriyah, Salsabila; Ibrahim, Sajid; Muhammad, Satyo; Mahindra, Syaputra Dwi; Ramadhan, Roza Syahputra; Rosiki, Muhammad Habib; Fahmi, Ziddan
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 3 No 1: BATOBO: Juni 2025
Publisher : Jurusan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/batobo.3.1.1-7

Abstract

Di Indonesia, stunting adalah masalah kesehatan yang serius, terutama di kalangan anak balita. Kekurangan nutrisi jangka panjang dan kurangnya akses terhadap layanan kesehatan yang memadai adalah penyebab kondisi ini. Tujuan dari penelitian ini adalah untuk mengetahui bagaimana akses kesehatan dan gizi seimbang berperan dalam mencegah stunting pada anak balita di Desa Karya Indah. Penelitian ini menggunakan pendekatan deskriptif kualitatif untuk mengumpulkan data dari observasi lapangan, wawancara dengan tenaga kesehatan, dan analisis program kesehatan lokal. Hasil penelitian menunjukkan bahwa solusi gizi yang tepat, seperti makanan tambahan yang kaya nutrisi dan akses kesehatan yang lebih baik, sangat berperan dalam menurunkan angka stunting di desa tersebut. Untuk mencegah stunting, kader kesehatan dan keluarga harus berpartisipasi dalam edukasi gizi. Penelitian ini mengusulkan pendidikan gizi yang lebih baik di tingkat rumah tangga dan optimalisasi layanan kesehatan desa sebagai upaya berkelanjutan dalam pencegahan stunting.
Inisiasi Pembangunan Lembaga Kursus dan Pelatihan di Pondok Pesantren Aufia Global Islamic Boarding School sebagai Solusi Kompetensi Teknik Instalasi PLTS bagi Remaja Putus Sekolah Rosma, Iswadi Hasyim; Putra, Agus Ika; Jamaan, Ahmad; Ali, Nurhalim Dani; Suwitno, Suwitno
Unri Conference Series: Community Engagement Vol 6 (2024): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.6.463-468

Abstract

The Aufia Global Islamic Boarding School (PP AGIBS) is in the village of Minas Jaya, Minas District, Siak Regency, Riau Province. The PP AGIBS curriculum emphasizes Islamic education, so it contains little in the way of science and technology competencies, such as Solar Power Plant Installation Engineering. (PLTS). In general, the village of Minas Jaya is around the former PT Chevron Pacific Indonesia, which used to be the largest oil mining company in Riau Province, and most of its residents worked at Chevron as unskilled laborers, such as cleaning staff and security personnel. The presence of PP AGIBS is very strategic considering its location around the community; however, PP AGIBS has a moral responsibility to contribute to the social issues faced by the community in the Minas Jaya village. Therefore, PP AGIBS needs to collaborate well with the University of Riau and the Minas Jaya village government to facilitate communication with the residents of Minas Jaya on issues outside the scope of Islamic studies, such as the high dropout rate among teenagers. One of the solutions implemented to address the issue of school dropouts is the initiation of the AGIBS Taruna Course and Training Institute (LKP) development. To realize the initial steps of this LKP development, several activities and role distributions were carried out. Among them, PP AGIBS contributes as the provider of infrastructure, including location, office space, office supplies, and other related facilities, while the service implementation team from Riau University provides human resources as instructors and supplies training equipment for PLTS installation techniques. With the synergy between Riau University and PP AGIBS, it is hoped that school dropouts can gain competence in the field of PLTS installation techniques.
Optimalisasi Pencahayaan Pada Ruangan Perumahan PT Pertamina (Persero) RUII Production Dumai Menggunakan Logika Fuzzy Suwitno, Suwitno; Winanda, Muhammad Valdi; Ali, Nurhalim Dani; Rosma, Iswadi Hasyim; Romy, Romy
JET (Journal of Electrical Technology) Vol 9, No 3 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/jet.v9i3.10579

Abstract

Pencahayaan ruangan yang dijadikan objek penelitian adalah pencahayaan pada perumahan PT Pertamina (Persero) RU II ProductionDumai. Perumahan ini sebagian besar merupakan ruangan yang digunakan untuk keluarga. Penentuan pencahayaan ruangan pada ruangan-ruangan tersebut saat ini masih dilakukan secara objektif, belum terdapat perhitungan yang jelas dalam penentuan tingkat pecahayaannya. Penelitian ini dilakukan untuk mengetahui tingkat optimalisasi sistem pencahayaan ruangan kondisi eksisting dan melakukan upaya perbaikan untuk menuju sistem pencahayaan ruangan kondisi ideal. Upaya untuk menuju kondisi ideal tersebut adalah dengan melakukan pengukuran, perhitungan dan analisa terhadap tingkat pencahayaan, daya lampu total, biaya investasi dan biaya pemakaian listrik dengan menggunakan metoda logika fuzzy. Untuk validasi data digunakan software Matlab. Pada kondisi eksisting seluruh ruangan masih terbilang kurang baik, dengan nilai lux < 50 lux dan optimasi 60%, sehingga berdampak baik karena telah mencapai tingkat pencahayaan minimum masing-masing ruangan berdasarkan fungsi ruangan yang telah direkomendasikan sesuai dengan SNI 03-6575-2011 yaitu ruang tamu dengan lux 200 atau ruang kamar tidur 150 lux.
Inisiasi Pendirian LKP dan Pembangunan Alat Pelatihan Pembangkit Listrik Tenaga Surya (PLTS) di Pondok Pesantren Aufia Global Islamic Boarding School Kelurahan Minas Jaya Kecamatan Minas Kabupaten Siak Rosma, Iswadi Hasyim; Jamaan, Ahmad; Putra, Agus Ika
Sewagati Vol 9 No 1 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i1.2454

Abstract

Pondok Pesantren Aufia Global Islamic Boarding School (PP AGIBS) di Kelurahan Minas Jaya, Kecamatan Minas, Kabupaten Siak, Riau, menitikberatkan pendidikan keislaman dengan sedikit muatan sains dan teknologi, seperti teknik instalasi PLTS. PP AGIBS memiliki tanggung jawab moral terhadap tingginya angka remaja putus sekolah di sekitar kelurahan Minas Jaya. Untuk itu, PP AGIBS bekerja sama dengan Universitas Riau (UNRI) dan pemerintah Kelurahan Minas Jaya dalam membangun Lembaga Kursus dan Pelatihan (LKP) AGIBS Taruna. Pembangunan ini diawali dengan dua kegiatan utama, yaitu penyediaan infrastruktur oleh PP AGIBS, termasuk lokasi, ruangan, dan sarana pendukung, serta dukungan UNRI dalam bentuk tenaga pengajar dan alat pelatihan PLTS. Sinergi ini mempermudah santri dan remaja putus sekolah mengakses pelatihan teknik instalasi PLTS.
Co-Authors A. Ludfi Nur Kasan A. U. Lawan Abdul Gafar Arsaf Abdul Gafar Arsaf Abubakar Abdulkarim Abubakar Abdulkarim Adamu Halilu Jabire Agus Ika Putra Agus Ika Putra Agus Wahyudi Ahmad Jamaan Alfian Adri Ali, Nurhalim Dani Ali, Nurhalim Dani Ali Amanda Khaira Perdana Amir Hamzah Amir Hamzah Anisa Yulvi Azni Antonius Rajagukguk, Antonius Ari Sandhyavitri Ari Sandhyavitri Arisman Adnan Azmi Abdullah Azriyenni Azhari Zakri Dansarki Nanly Wesley Demiza, Khosfikra Dian Yayan Sukma, Dian Yayan Dicky Rinaldi Dicky Yulvarizal Dohardo P H Simanullang Edy Ervianto Ery Safrianti Fahmi, Ziddan Fajar Restuhadi Fakhriyah, Salsabila Fathir Juliando Feblil Huda Feblil Huda Febrizal Ujang Feranita Feranita Abdul jalil Feranita Feranita Ferdian, Fhinta Syahila Ferdy Ultra Sony Firdaus Firdaus Firdaus Fri Murdiya, Fri Ginting, Yogie Rinaldy Harahap, Elco Maghfira Arfi Herki Desrizal Hidayatul Catra Burhan Hidayatul Catra Burhan Hutabarat, Bijujent I.S. Madugu Ibrahim, Sajid Ichsan Maulana Putra Jamarrintan Jamarrintan Linna Oktaviana Sari Mahindra, Syaputra Dwi Marpaung, Horas Muhammad Riski Hanifa Muhammad, Satyo N. Nazaruddin Nasir Faruk Noveri Lysbetti M Nurhalim Dani Ali Nurhalim Nurhalim, Nurhalim P.U. Okorie Ramadhan, Roza Syahputra Randy Putra Ranto Ramandana Romy Romy Rosiki, Muhammad Habib Rusdi Masri S, Rocky Samuel Sakti Hutabarat Sani Saminu SARE, SATRIA Satibi, Syawal Siregar, M. Ikhsan Sobhy Abdelkader Soewignjo Agus Nugroho Solihin, Ikhram Minata Suwitno Suwitno Suwitno, Suwitno Tsabitul Khair Valendino, Muhammad Wallsman Lamtota Nainggolan Winanda, Muhammad Valdi Wiwik Handayani Yoga Pratama