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All Journal Jurnal Sains dan Teknologi Bulletin of Electrical Engineering and Informatics 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 Journal of Electrical Technology Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Sinergitas PkM & CSR TESLA: Jurnal Teknik Elektro JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) 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 Electrical Today
Rosma, Iswadi Hasyim
Jurusan Teknik Elektro, Fakultas Teknik, Universitas Riau
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Optimasi Sistem Pengendalian Frekuensi Dengan Metode Kontrol Optimal Linier Quadratic Regulator Pada PLTU Hanifa, Muhammad Riski; Hasyim Rosma, Iswadi
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 Ramandana, Ranto; Hasyim Rosma, Iswadi
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 Arsaf, Abdul Gafar; Hasyim Rosma, Iswadi
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
Effect of Weather Dynamics to Energy Yield of Dual Axis Sun Tracker-Based Solar PV generation Hasyim Rosma, Iswadi; Rinaldi, Dicky; Sukma, Dian Yayan
PROtek : Jurnal Ilmiah Teknik Elektro Vol 10, No 2 (2023): Protek : Jurnal Ilmiah Teknik Elektro
Publisher : Program Studi Teknik Elektro Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/protk.v10i2.4673

Abstract

Generally, solar PV Panel is constructed at fix tilted angle at different locations, such as: street light poles, rooftops, residential buildings, and canopy. The energy production from solar PV generation system is vary and influenced by site (location) and weather parameters. Solar PV generation analyzed in this research is Dual Axis Sun Tracker (DAST) Solar PV Generation. Dual axis sun tracker is a system controller to ensure solar PV panel following the sun path.  Furthermore, energy production from DAST-based solar PV generation were measured and collected using energy meter as well as by using automatic weather station for the weather parameters. From these measrument data, it can be correlated the influence of weather parameters to the energy production from DAST PV generation system. The correlation between weather parameters and energy production are analyzed by statistical analysis using SPSS software and multiple linear regression models. From the results and analysis, it can be shown the amount of energy production from DAST-based solar PV Generation are influenced by weather parameters, namely: temperature, humidity, ultraviolet radiation, and solar radiation with significant level up to 98.2%.
Optimizing tilt angle of the roof for the best performance ratio of rooftop photovoltaic Dani Ali, Nurhalim; Bahri, Syaiful; Ikhwan Siregar, Yusni; Suwondo, Suwondo; Anhar, Anhar; Lysbetti Marpaung, Noveri; Muhammad, Juandi; Hasyim Rosma, Iswadi
Bulletin of Electrical Engineering and Informatics Vol 14, No 6: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v14i6.11126

Abstract

Rooftop photovoltaic (RPV) systems are becoming increasingly popular as a source of renewable energy. One key factor that significantly affects the performance of RPV systems is the tilt angle of the solar panels. This study aims to determine the optimal tilt angle to maximize electricity production for the RPV system installed on academic building, Department of Electrical Engineering, Faculty of Engineering, University of Riau. The research method used is the PVSyst simulation. The simulation data input was used as daily weather for one year. In this study, variations in roof tilt angles of 5°, 10°, 15°, 20°, and 25° were examined. The results show that the optimal tilt angles for this location are 5° and 10°. At a 5° tilt angle, the RPV can generate 247,128 kWh per year with a performance ratio (PR) of 83%. And then at a 10° tilt angle, the system can generate 248,012 kWh per year with a PR of 82%. Based on the simulation results, other tilt angles also produced higher energy outputs but yielded lower PR values. This study provides practical recommendations for designing RPV systems in regions with similar weather conditions.
Analisis Potensi Sampah di Kuantan Singingi untuk Pembangkit Listrik Tenaga Sampah (PLTSa) Landfill Gas (LFG) Boy Ihsan; Dicky Pangindra; Iswadi Hasyim Rosma
JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) Vol. 7 No. 1 (2025): Juni 2025
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jasiek.v7i1.15607

Abstract

Waste Power Plant (PLTSa) is one of the solutions to overcome waste problems and as electricity supply. This study analyzes the technical and economic feasibility of building a PLTSa at the Muaro Sentajo Landfill, Kuantan Singingi Regency, which uses the sanitary landfill method. The organic waste produces landfill gas (LFG), especially methane, which can be used as fuel for power generation. The estimated LFG content was calculated using the U.S. Environmental Protection Agency model and Landfill Gas Emmisions Model (LandGEM) software. The results show that by the end of the operation period, the landfill can produce 2,966,400 m³ of methane gas capable of operating a power plant with output of 2.39 MW. The analysis shows that the project is financially feasible, with a Net Present Value (NPV) of Rp13.8 billion, Benefit-Cost Ratio (BCR) of 1,1648, Internal Rate of Return (IRR) of 14.2%, and Payback Period of 11 years 8.3 months
Desain Dan Implementasi Inverter Satu Fasa Berbasis Teknologi Mikrokontroler Arduino Uno Suwitno, Suwitno; Aziz, M.; Ali, Nurhalim Dani; Rosma, Iswadi Hasyim; Firdaus, Firdaus; Marpaung, Noveri Lysbetti
JET (Journal of Electrical Technology) Vol 10, No 3 (2025): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/jet.v10i3.13158

Abstract

Penelitian ini membahas desain dan implementasi inverter satu fasa berbasis mikrokontroler Arduino dengan teknik modulasi gelombang persegi. Sistem inverter dirancang untuk mengonversi sumber tegangan DC menjadi tegangan AC satu fasa dengan frekuensi 50 Hz. Arduino digunakan sebagai pembangkit sinyal kendali, sedangkan IC IR2110 berfungsi sebagai driver untuk menghubungkan sinyal logika mikro kontroler dengan piranti switching MOSFET pada rangkaian inverter. Untuk meningkatkan kualitas tegangan keluaran, diterapkan rangkaian filter kapasitor pada sisi sekunder transformator guna mereduksi komponen harmonisa yang dihasilkan oleh modulasi gelombang persegi. Pengujian dilakukan dengan variasi beban resistif berupa lampu pijar 15 W, 25 W, dan 40 W untuk mengevaluasi kestabilan tegangan dan bentuk gelombang keluaran inverter. Hasil pengujian menunjukkan bahwa setelah pemasangan kapasitor filter, bentuk gelombang keluaran inverter mendekati sinusoidal dengan tingkat distorsi yang lebih rendah. Tegangan keluaran terukur tanpa beban sebesar 219,8 V dengan frekuensi 50 Hz, sesuai dengan standar system listrik AC. Meskipun terjadi penurunan tegangan saat beban 40W 3,1% seiring peningkatan beban, inverter tetap mampu mempertahankan kinerja yang stabil tanpa distorsi gelombang yang signifikan. Hasil penelitian ini menunjukkan bahwa inverter satu fasa berbasis Arduino dengan modulasi gelombang persegi dan penambahan filter kapasitor dapat digunakan secara efektif untuk aplikasi daya rendah.
Analisis Kinerja Dan Implementasi Mppt Berbasis PSO Pada Sistem Panel Surya Untuk Peningkatan Efisiensi Energi Suwitno - Suwitno; Muhamad iqbal salaeh; Dian Yayan Sukma; Amir Hamzah; Iswadi Hasyim Rosma; Nurhalim Nurhalim
JET (Journal of Electrical Technology) Vol 11, No 1 (2026): EDISI FEBRUARI
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/jet.v11i1.13379

Abstract

Penggunaan panel surya sebagai sumber energi terbarukan seringkali kurang optimal akibat fluktuasi iradiasi matahari dan metode pembebanan langsung (direct coupling) yang memicu terjadinya jatuh tegangan (voltage drop). Untuk mengatasi permasalahan inefisiensi tersebut, penelitian ini bertujuan merancang dan mengimplementasikan sistem Maximum Power Point Tracking (MPPT) cerdas menggunakan algoritma Particle Swarm Optimization (PSO) yang diintegrasikan dengan rangkaian Boost Converter pada panel surya berkapasitas 100 WP. Pengambilan data dan evaluasi kinerja sistem dilakukan melalui pengujian lapangan selama tujuh hari berturut-turut yang mencakup berbagai dinamika cuaca, mulai dari kondisi mendung ekstrem hingga panas terik. Hasil pengujian memvalidasi bahwa algoritma PSO beroperasi secara lincah dan adaptif dalam memanipulasi duty cycle untuk melacak Titik Daya Maksimum (MPP). Sistem ini terbukti sangat andal terutama pada kondisi iradiasi optimal (tinggi), di mana algoritma PSO sukses mencegah fenomena jatuh tegangan yang dialami oleh sistem tanpa kendali. Dari sisi perangkat keras, purwarupa Boost Converter menunjukkan kualitas konversi yang sangat baik dengan mempertahankan efisiensi secara konsisten di atas 92% pada setiap siklus pengujian harian (puncak 93,6%). Secara keseluruhan, sistem kendali MPPT PSO berhasil menghimpun total energi sebesar 2156 Wh selama tujuh hari pengujian, melampaui sistem konvensional tanpa MPPT yang hanya memanen 1507 Wh. Hal ini membuktikan bahwa purwarupa yang dirancang sukses memberikan persentase peningkatan ketersediaan energi total yang sangat signifikan sebesar 43.06%.
PENERAPAN AERATOR JENIS KINCIR UNTUK KEBERLANJUTAN SUPLAI OKSIGEN TERLARUT PADA PERTANIAN TAMBAK UDANG [PENERAPAN AERATOR JENIS KINCIR UNTUK KEBERLANJUTAN SUPLAI OKSIGEN TERLARUT PADA PERTANIAN TAMBAK UDANG [IMPLEMENTATION OF TURBINE TYPE AERATOR FOR SUSTAINABLE SUPPLY OF DISSOLVED OXYGEN FOR SHRIMP FARMING] Iswadi Hasyim Rosma; Azriyenni Azhari Zakri; Abdul Gafar Arsaf; Feblil Huda; Agus Ika Putra
Jurnal Sinergitas PKM & CSR Vol. 5 No. 1 (2020): October
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/jspc.v5i1.1759

Abstract

An aerator is a device that utilized to produce dissolved oxygen in water through a diffusion process. Generally, the aerators employed by farmers are operated manually by an operator. The design and utilization of a smart device such as the Zelio Smart Relay is one of the objectives of this article. With the use of smart relays, it is expected that the presence of operator can be eliminated and able to reduce operational cost. The type of aerator discussed in this article is a dual turbine aerator. Each turbine has 6 blades. In order to have the smart relay to operate properly, at least 2 (two) sensors are needed as inputs, namely the light intensity and the temperature sensor. Furthermore, dissolved oxygen levels in water are categorized as high (30 mg / L) if the light intensity is higher than 100,000 lux and the temperature lower than 350 C. It shows in the results that the implementation of aerator has the capabilty to increase dissolved oxygen from 8 mg / L - 14.4 mg / L in 45 minutes, therefore the quantity and the quality of dissolved oxygen required by shrimp farming can be fulfilled properly.BAHASA INDONESIA ABSTRACT: Aerator adalah salah satu alat bantu yang berfungsi untuk memproduksi oksigen terlarut dalam air melalui proses difusi. Sampai saat ini, aerator yang dimanfaatkan oleh para petani pada umumnya masih bersifat manual dengan cara dioperasikan dan dikendalikan oleh tanaga operator (manusia). Perancangan dan pemanfaatan teknologi cerdas seperti Zelio Smart Relay merupakan salah satu bahasan pada artikel ini. Dengan adanya pemanfaatan smart relay tersebut diharapkan pekerjaan operator pada pertanian tambak udang dapat dipermudah dan mampu menekan biaya operasional. Jenis aerator yang dibahas pada artikel ini adalah aerator turbine ganda yang memiliki 6 buah sudu di tiap tiap kincirnya. Agar sistem kendali yang dirancang pada smart relay beroperasi dengan baik, maka diperlukan sedikitnya 2 (dua) buah sensor yaitu sensor intensitas cahaya dan sensor suhu yang terukur pada kolam (air). Selanjutnya kadar oksigen terlarut dalam air dikategorikan tinggi (30 mg/L) apabila intensitas cahaya > 100.000 lux dan untuk suhu < 350 C. Dari hasil penerapan aerator di kolam dapat diketahui bahwa aerator dengan penambahan Zelio Smart Relay ini dapat bekerja sesuai dengan perancangan, yaitu dapat meningkatkan oksigen terlarut dari 8 mg/L - 14.4 mg/L dalam 45 menit, dengan demikian kuantitas oksigen terlarut yang dibutuhkan oleh pertanian udang dapat dipenuhi dengan baik. 
Program Penerapan Teknologi Tepat Guna Pemberi Pakan Ikan Pada Kolam Ikan Lele Di Pondok Pesantren Markiz Daarul Qur’an Kecamatan Lipatkain Kabupaten Kampar Provinsi Riau Ery Safrianti; Feranita; Nurhalim; Firdaus; Iswadi Hasyim Rosma; Linna Oktaviana Sari; Dian Yayan Sukma
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 1 No 1: BATOBO: Juni 2023
Publisher : Jurusan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/batobo.1.1.1-11

Abstract

Budidaya ikan lele merupakan salah satu usaha di Pondok Pesantren Markiz Daarul Qur’an Kecamatan Lipat Kain, Kabupaten Kampar Kiri dengan tujuan untuk memenuhi kebutuhan sehari-hari bagi santri yang ada di pondok. Kegiatan utama pengabdian masyarakat ini adalah memanfaatkan teknologi tepat guna untuk pemberian pakan ikan lele di ponpes Markiz Daarul Qur’an sehingga kegiatan pemberian pakan ikan dapat diberikan secara teratur dan otomatis. Selain mempermudah dalam pemberian pakan juga mengurangi tingkat kanibalisme ikan lele, sehingga ikan lele dapat diproduksi dalam jumlah yang sama dengan padat tebarnya. Kegiatan ini dimulai dengan melakukan survei oleh tim pengabdian dan mahasiswa Kukerta. Kedatangan tim pengabdian disambut oleh pihak pesantren dan mengantar tim untuk melakukan pengecekan ke tempat kolam budidaya ikan lele yang menjadi tempat pemasangan alat teknologi tepat guna (TTG) pemberi pakan ikan otomatis. Kondisi kolam dalam keadaan baik. Padat tebar benih ikan lele yang dibudidayakan yaitu 750 ekor, dengan jadwal pemberian pakan pada tiga waktu yaitu, jam 07.00 WIB untuk pagi hari, jam 15.00 WIB untuk sore hari dan jam 21.00 WIB untuk malam hari. Penerapan TTG pemberian pakan ikan lele di ponpes ini secara tidak langsung telah membantu  biaya operasional dan penyelenggaraan pendidikan santrinya, karena kebanyakan berasal dari golongan masyarakat kurang mampu dan anak yatim dari berbagai usia.
Co-Authors A. Ludfi Nur Kasan A. U. Lawan Abdul Gafar Arsaf Abdul Gafar Arsaf Abdullah, Azmi Abubakar Abdulkarim Abubakar Abdulkarim Adamu Halilu Jabire Adri, Alfian 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 Anhar Anhar Anisa Yulvi Azni Antonius Rajagukguk Antonius Rajagukguk Antonius Rajagukguk, Antonius Ari Sandhyavitri Ari Sandhyavitri Arisman Adnan Arsaf, Abdul Gafar Aziz, M. Azmi Abdullah Azriyenni Azhari Zakri Boy Ihsan Dani Ali, Nurhalim Dansarki Nanly Wesley Demiza, Khosfikra Desrizal, Herki Dian Yayan Sukma, Dian Yayan Dicky Pangindra Dicky Rinaldi Dicky Yulvarizal Dohardo P H Simanullang Edy Ervianto Edy Ervianto Ery Safrianti Fahmi, Ziddan Fajar Restuhadi Fakhriyah, Salsabila Fathir Juliando Feblil Huda Feblil Huda Febrizal Ujang Fera Gustia Handayani Fera Gustia Handayani Feranita Feranita Abdul jalil Feranita Feranita Ferdian, Fhinta Syahila Ferdy Ultra Sony Firdaus Firdaus Firdaus Firdaus Firdaus Firdaus Firdaus Fri Murdiya, Fri Ginting, Yogie Rinaldy Hanifa, Muhammad Riski Harahap, Elco Maghfira Arfi Harahap, Muhammad Nasir Herki Desrizal Hidayatul Catra Burhan Hidayatul Catra Burhan Hutabarat, Bijujent I.S. Madugu Ibrahim, Sajid Ichsan Maulana Putra Jamarrintan Jamarrintan Jikro Pikri Juandi Juandi Linna Oktaviana Sari Lysbetti Marpaung, Noveri M. Aziz Mahindra, Syaputra Dwi Marpaung, Horas Muhamad iqbal salaeh Muhammad Nasir Harahap Muhammad Riski Hanifa Muhammad Valdi Winanda Muhammad, Satyo N. Nazaruddin Nasir Faruk Noveri Lysbetti M Nurhalim Nurhalim Dani Ali Nurhalim Dani Ali Nurhalim Nurhalim, Nurhalim P.U. Okorie Putra, Randy Ramadhan, Roza Syahputra Ramandana, Ranto Randy Putra Ranto Ramandana Rinaldi, Dicky Romy Romy 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 Suwitno Suwitno Suwitno, Suwitno Suwitno Suwitno1 Suwitno1, Suwitno Suwondo Suwondo SYAIFUL BAHRI Tsabitul Khair Valendino, Muhammad Wallsman Lamtota Nainggolan Winanda, Muhammad Valdi Wiwik Handayani Yoga Pratama Yusni Ikhwan Siregar