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Analysis of the Effect of Magnetic Thickness and Rotating Speed on PMSG 24 Slot 16 Pole Characteristics Lubis, Achiruddin; Aini, Zulfatri
PROtek : Jurnal Ilmiah Teknik Elektro Vol 10, No 3 (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.v10i3.6059

Abstract

Wind energy is one of the alternative energies that can overcome global warming caused by fossil energy. Permanent Magnet Synchronous Generator (PMSG) has a higher efficiency compared to other types of generators. The previous permanent magnet synchronous generator model was only able to produce efficiency at a rotational speed of 500 rpm of 67.30% and at a rotational speed of 1500 rpm of 80.9%, so further research is needed to get a higher efficiency value. This study aims to analyze the effect of magnetic thickness and rotational speed on PMSG characteristics and obtain a higher efficiency value. Using variations in magnetic thickness of 7.5mm, 9 mm, and 10 mm and variations in rotational speed of 500 rpm, 1000 rpm,  and 1500 rpm using software based on Finite Element Methode, this study obtained the results of the largest current, voltage, input power, and output power at a magnetic thickness of 10mm with a rotational speed of 1500 rpm of 20.40 A, 204.06 V, 4979.60 W, and 4266.21 W, with the greatest efficiency being in the magnetic thickness of 9mm and 10 rpm of 89.20%
Electricity and Lighting Audits at The Bono Pekanbaru Hotel Ramadhan, Muhammad Fiqri; Aini, Zulfatri
Jurnal Edukasi Elektro Vol. 7 No. 2 (2023): Jurnal Edukasi Elektro, Volume 7, Nomor 2, 2023
Publisher : DPTE FT UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jee.v7i2.62785

Abstract

Electrical energy is one of the primary sources of energy support in our lives, which is very important in the operation of the hospitality industry, especially in using electronic equipment and air conditioning lighting. Many devices that require electrical energy to operate make energy consumption increase. Therefore, efforts to prevent waste of electricity use need to be made through energy audits as well as energy savings opportunities by performing calculations of Energy Consumption Intensity (ECI) values based on historical data of electrical consumption and performing measurements of light intensity on the lighting system available at The Bono Pekanbaru Hotel. Some rooms still exceed the set ECI value, which can be categorized as wasteful energy. It is necessary to do so energy-saving opportunities while on the lighting system based on the measurement of the light intensity carried out in each room, many rooms that do not meet the lighting standards and the basis of the visual still experience evaporation. This requires an energy audit and a lighting audit. On the important lighting system made, upgrade technology with the change of type and power of lighting on lighting will create energy savings in the use of electricity at the Hotel the Bono Pekanbaru and create a bright and comfortable room. Change the currently installed lights into LED lights so that the lighting system available in each room meets the SNI lighting standard 03-6197-2000.
ANALYSIS OF THE RELIABILITY OF ELECTRICAL DISTRIBUTION SYSTEMS USING THE TECHNICAL SECTION METHOD AND RNEA REPEAT GIBP-MESIR Aprialdi, Rahmat; Aini, Zulfatri
Jurnal Edukasi Elektro Vol. 7 No. 2 (2023): Jurnal Edukasi Elektro, Volume 7, Nomor 2, 2023
Publisher : DPTE FT UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jee.v7i2.63118

Abstract

The electricity distribution system can be said to be reliable if the process of delivering electricity to the customer does not experience significant interruptions. In the PT. PLN (Persero) ULP Duri found a variety of disturbances in one year. The resulting impact is, energy that is not channeled during the occurrence of disruption, thus making the reliability value on the electricity distribution system unreliable. The study aims to analyze the reliability of the system on the GIBP-MESIR repeat, using the Techniqeu Section Method and RNEA Method, as well as calculate the economic losses over a year. System reliability index results using Section Technique Method SAIFI 1,258 times/customer/year, SAIDI 5,324 hours/customer/year and CAIDI 4,232 hours/customer/year. The RNEA method SAIFI 1,844 times/customer/year, SAIDI 7,819 hours/customer/year, and CAIDI 4,239 hours/customer/year. For both methods the SAIFI, SAIDI, and CAIDI values are below SPLN 88-2 1986, then it can be said to be reliable. Economic fulfillment of Section Technique Method with ENS value 59.194.677,96kWh, AENS 3.453,39 kWh/customer, and Rp 85.518.551.248. RNEA method values ENS 86.933.685,93 kWh, AENS 5.071,681 kWh/customer, and Rp. 125.593.096.063 for one year.
ANALISIS PENGARUH KETEBALAN MAGNET DAN JUMLAH LILITAN TERHADAP KARAKTERISTIK GENERATOR MAGNET PERMANEN 18 SLOT 16 POLE Diar, Abdurahman; Aini, Zulfatri
MULTITEK INDONESIA Vol 17 No 1 (2023): Juli
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/mtkind.v17i1.7411

Abstract

Abstrak Energi angin di Indonesia memiliki potensi yang besar sehingga perlu dimanfaatkan untuk menghasilkan energi listrik dalam rangka transisi energi. Namun, kecepatannya yang tergolong menengah-rendah merupakan tantangan untuk memaksimalkan potensinya. Generator yang cocok digunakan adalah Permanent Magnet Synchronous Generator (PMSG).  Namun, PMSG yang digunakan saat ini memiliki efisiensi dan karakteristik yang masih rendah. Penelitian ini menggunakan parameter-parameter terbaik dari penelitian-penelitian sebelumnya dan menambahkan pembaruan pada ketebalan magnet dan jumlah lilitan agar dapat menghasilkan PMSG berkarakteristik tinggi. Peneliti melakukan perancangan dan pengujian melalui simulasi dengan bantuan software Magnet Infolytica dengan metode Finite Element Method (FEM). Nilai hasil simulasi diolah menggunakan Microseft Excel untuk menghasilkan nilai daya input, daya output dan efisiensi. Variasi ketebalan magnet yang digunakan adalah 3 mm, 6 mm, dan 9 mm. Variasi jumlah lilitan yang digunakan adalah 20, 30, dan 40 lilitan. Hasil simulasi penelitian menunjukkan bahwa karakteristik tertinggi yang dihasilkan adalah PMSG ketebalan 9 mm dan lilitan 40 dengan arus 26,59 A, tegangan 265,88 V, torsi -73,85 Nm, daya input 7.744,71 W dan daya output 7.266,01 W. Sedangkan efisiensi terbesar adalah PMSG ketebalan 9 mm dan lilitan 30 dengan arus 24,36 A, tegangan 243,58 V, torsi -61,52 Nm, daya input 6.441,46, daya output 6.101,13 dan efisiensi 94,70%. Abstract Wind energy in Indonesia has great potential so it needs to be utilized to produce electrical energy in the context of energy transition. However, its medium-low speed is a challenge to maximize its potential. A suitable generator for use is a Permanent Magnet Synchronous Generator (PMSG).  However, the PMSG used today has low efficiency and characteristics. This study uses the best parameters from previous studies and adds updates to the magnetic thickness and number of windings to produce high-characteristic PMSG. Researchers design and test through simulation with the help of Magnet Infolytica software with Finite Element Method (FEM) method. The simulated values are processed using Microsoft Excel to produce input power, output power, and efficiency values. The variations in magnetic thickness used are 3 mm, 6 mm, and 9 mm. The variations in the number of windings used are 20, 30, and 40 windings. The results of the research simulation showed that the highest characteristics produced were PMSG thickness of 9 mm and winding 40 with a current of 26,59 A, voltage of 265,88 V, torque of -73,85 Nm, input power of 7.744,71 W and output power of 7.266,01 W. While the greatest efficiency is PMSG thickness of 9 mm and winding 30 with a current of 24,36 A, voltage of 243,58 V, torque of -61,52 Nm,  Input power 6.441,46, output power 6.101,13 and efficiency 94,70%.  
Optimalization of Load Balancing using Fuzzy Logic to Power Lost Costs in a 1 MVA Transformer Liliana, Liliana; Ullah, Aulia; Aini, Zulfatri
ELKHA : Jurnal Teknik Elektro Vol. 17 No.2 October 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/elkha.v17i2.97809

Abstract

The 1 MVA transformer at UIN Suska Riau has experienced severe load imbalance, resulting in significant power losses, excessive neutral current, and reduced efficiency that accelerates insulation degradation and shortens its service life. Unlike previous studies that mainly focused on static phase balancing or software-based estimations, this research introduces a real-time load balancing strategy using Fuzzy Logic and projects power loss costs over 10 years. Real-time current measurements were collected over eight consecutive days under peak load conditions and processed through a MATLAB-based Fuzzy Logic system employing triangular membership functions and expert-defined inference rules. The research methodology includes load balancing, calculation of power losses and operational costs, and a comparison of pre- and post-balancing conditions. The results indicate a 95.58% reduction in load imbalance and more than 90% decrease in power losses. Furthermore, the 10-year projection analysis shows long-term operational cost savings of up to 99.65%, while the method also contributes to extending transformer lifetime by preventing overheating and insulation deterioration. The proposed approach enables utilities to mitigate neutral current, reduce energy losses, and lower operating costs across distribution networks.
Forecasting Electricity Consumption in Riau Province Using the Artificial Neural Network (ANN) Feed Forward Backpropagation Algorithm for the 2024-2027 Tengku Reza Suka Alaqsa; Zulfatri Aini; Liliana; Nanda Putri Miefthawati
Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics Vol. 7 No. 1 (2025): February
Publisher : Jurusan Teknik Elektromedik, Politeknik Kesehatan Kemenkes Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35882/7eeq7029

Abstract

Electricity production in Riau Province fluctuates between surplus and deficit, as reported by the Central Statistics Agency. From a peak of 3,758.75 GWh in 2017, production fell to 525.19 GWh in 2019, mainly due to lack of investment in new power plants and dependence on external electricity supply. This study addresses these challenges by using the Artificial Neural Network (ANN) Feed Forward Backpropagation method to forecast electricity demand from 2024 to 2027. This study aims to analyze the accuracy of the prediction through the Mean Absolute Percentage Error (MAPE), evaluate electricity consumption projections, and calculate the annual growth rate. The gap in this study is the inclusion of previously ignored variables, namely the GRDP of Government Buildings and the number of Government Building customers. The methodology used is Artificial Neural Network Feed Forward Backpropagation. In the training data training, the MAPE was obtained at 4,315%. The electricity consumption prediction obtained is 8,679 GWh in 2024, 9,690 GWh in 2025, 10,959 GWh in 2026, and 12,681 GWh in 2027. The growth rate is also projected to increase, namely 5.67% from 2023 to 2024, 11.65% from 2024 to 2025, 13.10% from 2025 to 2026, and 15.71% from 2026 to 2027.
Kajian Kelayakan Sistem Pembangkit Listrik Tenaga Hybrid PLTD-PLTMH Miefthawati, Nanda Putri; Lubis, Arul Anwar; Aini, Zulfatri; Sutoyo, Sutoyo
Seminar Nasional Teknik Elektro Vol. 3 No. 1 (2023): SNTE II
Publisher : Forum Pendidikan Tinggi Teknik Elektro Indonesia Pusat

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

Abstract

Energi memiliki peran yang sangat vital dalam aktivitas sehari-hari manusia. Hingga saat ini pasokan energi tidak lepas dari elektrifikasi sebagai penunjang kehidupan manusia. Pendistribusian tenaga listrik hingga kini yang belum merata pada setiap daerah mengakibatkan terjadinya kekurangan suplai listrik, terlebih lagi pada daerah yang terpencil sehingga belum terjangkau jaringan PLN. Pondok Afdeling IV PTPN 5 Sei Pagar adalah salah satu daerah terpencil yang mengalami permasalahan deficit energi listrik karena belum masuknya jaringan PLN. PLTD menjadi pembangkit listrik yang saat ini dapat digunakan untuk mensuplai listrin, namun belum bisa mencukupi kebutuhan listrik di tempat ini. Pembangkit listrik hybrid merupakan solusi yang dapat ditawarkan untuk daerah yang mengalami defisit energi. Energi air merupakan salah satu jenis EBT yang potensinya cukup besar untuk dimanfaatkan didaerah ini. Penelitian ini menggunakan metode apung untuk perhitungan debit air. Penelitian ini juga menggunakan Software HOMER Pro untuk analisis teknis maupun ekonomi pembangkit yang dirancang. Dari penelitian yang dilakukan, diperoleh hasil bahwa kebutuhan listrik total di Pondok Afdeling IV sebesar 95.757,75 kWh per tahun. Keluaran simulasi juga memperlihatkan bahwa PLTMH memiliki kontribusi sebesar 100% berbanding terbalik dengan PLTS yang memiliki kontribusi 0%. Dalam konfigurasinya PLTMH disusun secara seri dan listrik yang mampu dihasilkan oleh pembangkit adalah 172.299 kWh/tahun yang dapat memenuhi kekurangan listrik yang ada. Dari segi ekonomi, nilai LCOE sebesar Rp. 6.655,89, NPC sebesar Rp. 470.587.100,00, biaya investasi proyek diasumsikan sebagai hibah sehingga proyek layak dilanjutkan.
Desain Sistem Kontrol Tekanan Dinamis pada Pipa Distribusi Berbasis Mikrokontroler Maharmi, Benriwati; Sudarmadi, Ardiansyah; Harda Arya, Engla; Aini , Zulfatri
Seminar Nasional Teknik Elektro Vol. 4 No. 1 (2025): SNTE III
Publisher : Forum Pendidikan Tinggi Teknik Elektro Indonesia Pusat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46962/snte.25.065

Abstract

Abstrak—Pengendalian tekanan pada sistem perpipaan fluida merupakan aspek krusial dalam menjamin keselamatan dan efisiensi operasi, terutama pada infrastruktur pipa minyak yang telah berumur. Penelitian ini bertujuan untuk merancang dan menguji sistem kontrol tekanan berbasis Proportional-Integral-Derivative (PID) yang terintegrasi dengan pressure sensor dan servo valve. Sistem dikembangkan menggunakan mikrokontroler Arduino Uno dan diuji dalam kondisi simulasi mendekati operasi nyata. Proses tuning parameter PID dilakukan secara eksperimental menggunakan metode trial and error untuk mendapatkan performa kendali yang optimal. Hasil pengujian menunjukkan bahwa kombinasi parameter PID terbaik adalah Kp = 1, Ki = 0,045, dan Kd = 0,021. Sistem ini mampu mereduksi overshoot dari 13,6% menjadi 2,4%, serta menurunkan nilai error steady-state hingga 1,7%. Selain itu, waktu tunda dan waktu naik yang diperoleh masing-masing sebesar 10,2 detik dan 19,3 detik. Temuan ini menunjukkan bahwa sistem mampu menjaga kestabilan tekanan dengan respons yang cepat dan akurat, serta berpotensi diterapkan sebagai solusi efisien untuk sistem perpipaan minyak yang membutuhkan peningkatan keandalan dan keselamatan operasional.
Comparative Analysis of Static Var Compensator and Distributed Generation Installation on Voltage Profile Zulfatri Aini; Muhammad Guido Randa Febiant Guido; Tengku Reza Suka Alaqsa; Liliana
Jurnal Teknik Elektro Vol. 16 No. 1 (2024): Jurnal Teknik Elektro
Publisher : LPPM Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/zfmez603

Abstract

In Indonesia, electricity is a basic need with demand that continues to grow. PT PLN (Persero) projects an increase in electricity consumption of 8.9% by early 2022, highlighting the urgent need to address frequent problems such as blackouts, power losses, and voltage sags in the power distribution system. Effective solutions, including Static VAR Compensator (SVC) and Distributed Generation (DG), have been proposed to improve voltage stability and reduce power losses. This study evaluates and compares the performance of SVC and DG on a standard IEEE 14-bus system under increased load conditions. Using power flow analysis in ETAP, we simulate the installation of SVC at 15.99 Mvar and DG at 20.58 Mvar on bus 9, which shows optimal results. The findings show that DG slightly outperforms SVC in improving voltage stability and reducing power losses, with a 0.16% greater voltage increase and a 3.2 MW or 17.3% reduction in power losses. These results indicate that although both devices meet PLN’s voltage standards and improve power system efficiency, DG provides a slightly superior improvement in overall system performance.