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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 JET (Journal of Electrical Technology) Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Sinergitas PkM & CSR TESLA: Jurnal Teknik Elektro 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
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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
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 Safrianti, Ery; Feranita; Nurhalim; Firdaus; Hasyim Rosma, Iswadi; Oktaviana Sari, Linna; Yayan Sukma, Dian
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 1 No 1 (2023): 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.
Program Evaluasi Penghematan Konsumsi Energi Listrik pada Gedung Tiga Lantai di Politeknik Pelayaran Sumatera Barat Hasyim Rosma, Iswadi; Burhan, Hidayatul Catra; Abdul jalil, Feranita; Huda, Feblil; Putra, Agus Ika; Jamaan, Ahmad
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 1 No 2 (2023): BATOBO: Desember 2023
Publisher : Jurusan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/batobo.1.2.56-63

Abstract

Artikel ini bertujuan untuk menggambarkan kegiatan pengabdian kepada masyarakat yang dilakukan oleh tim pelaksana pengabdian Universitas Riau. Lokasi kegitan pengabdian ini bertempat di Gedung Politeknik Pelayaran Sumatera Barat (Poltekpel Sumbar). Adapun kegiatan yang dilaksanakan bertujuan untuk melakukan evaluasi penghematan konsumsi energi listrik pada bangunan tiga lantai di Politeknik tersebut. Secara umum, tahapa pengabdian ini terdiri atas survei awal dan survei lapangan, melakukan pengukuran system penerangan, menganalisis konsumsi energi system penerangan Gedung, dan membuat rekomendasi potensi penghematan konsumsi energi system penerangan. Program pengabdian ini telah dapat terlaksana dengan baik dimana pihak poltekpel sumatera barat teralibat aktif saat survei dan penyediaan data. Dari hasil survei dan evaluasi yang telah dilakukan dapat diketahui bahwa kuat pencahayaan penerangan saaat digunakan pada malam hari masih dibawah ketentuan yang disyaratkan. Potensi penghematan konsumsi energi listrik yang dapat diterapkan adalah metode pendekatan efisiensi energi yaitu dengan cara penggantian lampu TL dengan lampu LED. Penghematan energi listrik yang didapat mampu mencapai 2.393,1 kWh/bulan.
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.
Co-Authors A. Ludfi Nur Kasan A. U. Lawan Abdul Gafar Arsaf Abdul Gafar Arsaf Abdul jalil, Feranita 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 Ari Sandhyavitri Ari Sandhyavitri Arisman Adnan Arsaf, Abdul Gafar Azmi Abdullah Azriyenni Azhari Zakri Boy Ihsan Burhan, Hidayatul Catra Dani Ali, Nurhalim Dansarki Nanly Wesley Demiza, Khosfikra Desrizal, Herki 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 Fera Gustia Handayani Feranita Feranita Feranita Ferdian, Fhinta Syahila Ferdy Ultra Sony Firdaus Firdaus Firdaus Fri Murdiya, Fri Ginting, Yogie Rinaldy Hanifa, Muhammad Riski Harahap, Elco Maghfira Arfi Harahap, Muhammad Nasir Herki Desrizal 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 Mahindra, Syaputra Dwi Marpaung, Horas Muhammad Riski Hanifa Muhammad, Satyo N. Nazaruddin Nasir Faruk Noveri Lysbetti M Nurhalim Nurhalim Dani Ali Nurhalim Nurhalim, Nurhalim P.U. Okorie Putra, Randy Ramadhan, Roza Syahputra Ramandana, Ranto Randy Putra Ranto Ramandana Rinaldi, Dicky 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 Suwitno1, Suwitno Suwondo Suwondo SYAIFUL BAHRI Tsabitul Khair Valendino, Muhammad Wallsman Lamtota Nainggolan Winanda, Muhammad Valdi Wiwik Handayani Yoga Pratama Yusni Ikhwan Siregar