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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) Bulletin of Electrical Engineering and Informatics Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Sinergi ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal Pengabdian UntukMu NegeRI INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Sinergitas PkM & CSR Prosiding Seminar Nasional Pakar JOURNAL OF SCIENCE AND APPLIED ENGINEERING Dielektrika : Jurnal Ilmiah Kajian Teori dan Aplikasi Teknik Elektro Indonesian Journal of Electrical Engineering and Computer Science Jurnal Pengabdian Masyarakat Teknik International Journal of Electrical, Energy and Power System Engineering (IJEEPSE) Unri Conference Series: Community Engagement Journal of Innovation and Technology Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering)
Azriyenni Azhari Zakri
Universitas Riau
Religion Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Social Sciences Transportation Other

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Distribution Transformer Load Imbalance Analysis at Universitas Bangka Belitung Deni Irwansyah; Welly Yandi; Asmar; Wahri Sunanda; Azriyenni Azhari Zakri
Jurnal Inovasi Teknologi Vol 3 No 1 (2022): April
Publisher : Engineering Forum of Western Indonesian Government Universities Board (Forum Teknik, BKS-PTN Wilayah Barat) Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/jit.v3i1.4333

Abstract

Loading between phases must always be considered in order to reduce the imbalance, which results in an increase in neutral current and loss of conductor power. Non-linear loads can cause harmonics that affect the increase in copper losses in the transformer. Harmonics can cause distortion of the voltage and current waveforms, so attention must be paid to the specified limits so as not to interfere with the performance of electrical equipment. In addition, these parameters can affect the main electrical parameters, so they must be considered at the specified limits. This study aims to analyze the condition of load imbalance, harmonic content, and the effect on power loss in distribution transformers at Universitas Bangka Belitung. Parameters were measured using a Meterel Power Meter Analyzer type MI 2592 Power Q4 for ten days with the comparative method as a data analysis method. The average current unbalanced percentage is 9.91%, with the highest value at 24.31%. Energy due to power loss in the neutral conductor is 0.46 kWh/10 days, and the total conductor loss is 18.122 kWh/10 days.
Desain Pemodelan Andongan Dan Ketegangan Untuk Saluran Transmisi 275 KV Menggunakan Metode Catenary Dicky Novriandi; Azriyenni Azhari Zakri; Edy Ervianto
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

This research develops a method for determaining catenary sag and tension analysis on 275 kV transmission line conductors. Catenary method is a function of the weight equation conductor, wires maximum tensile stress, long-span, and the maximum sag of the conductor. Processing methods was is used to determaine the value of the sag and tension with the design of the model using statistical software AutoCAD, as well as determining the value of sag and tension of the influence of temperature conductor due to the current flow and ambient temperature using data conductor types A1/SA1A (ACSR/AS), the results of this research for the same tower height is obtained sag of 6.86 m, with a value of 4610.83 kg tension and conductor length of 401.06 m, while sag value for the tower which is placed at the high of 35.22 m, and sag for tower which is placed on the lower section of 0.48 m, the value of tension obtained for towers placed at a high part is 4657 kg while the tension value for towers placed in the lower part is 4600.75 kg, and the value change in conductor length by 401,882 m. Any increase in the current then sag value will increase, when the minimum current generated sag value of 6.8621 m, when the maximum current the resulting sag value increases to 8.31 m. While the value of tension obtained will be reduced, when the minimum current value of the tension is 4610,538 kg, when the maximum current value of tension is 3811,159 kg, Any increase in ambient temperature sag value will increase, when the minimum temperature is 20℃ the resulting sag value of 6.8621 m then when the maximum temperature is 40℃ the resulting sag value increased to 7.793492 m, While the value of the tension will decrease, when the minimum temperature value amounted tension 20℃ 4610.538 kg, when the maximum temperature is 40℃ tension value of 4062.345 kg.Keywords: ACSR, Catenary, Sag, Tension, Transmission Line.
The Design of Solar Cell-Based Street Lighting for School Area Azriyenni Azhari Zakri; Muhammad Fauzan; Wahri Sunanda; Rudy Kurniawan
Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) Vol 10 No 1 (2023): Jurnal Ecotipe, April 2023
Publisher : Jurusan Teknik Elektro, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jurnalecotipe.v10i1.3964

Abstract

Currently, public street lighting using Solar-based Public Street Lighting has been widely used. Solar-based Public Street Lighting is an off-grid Solar Power Plant application for street lighting. This study aims to use Solar-based Public Street Lighting which has been designed for Inayah Islamic School according to the geographical features of the school. To design this Solar-based Public Street Lighting by considering the economic aspect. From the data obtained directly at the location, the road width is 4.5 meters and the total length is 330 meters. Road size is used to determine the need for lighting quality according to the Indonesian National Standard of 7391:2008. This Solar-based Public Street Lighting has been designed with a pole height of 5 meters and a 1.5-meter pole arm using a 20 Watt 2-in-1 LED lamp and a solar cell capacity of 50 Wp per pole. From the results of the design analysis, the component specifications used in the design have met the requirements according to SNI of 7391:2008, and the required poles for Solar-based Public Street Lighting are 22 points for the Inayah Islamic School Complex area
Sag and Tension of 275 kV Transmission Line using Catenary Novriandi, Dicky; Zakri, Azriyenni Azhari; Ervianto, Edy
International Journal of Electrical, Energy and Power System Engineering Vol. 2 No. 3 (2019): International Journal of Electrical, Energy and Power System Engineering (IJEEP
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (387.466 KB) | DOI: 10.31258/ijeepse.2.3.15-20

Abstract

This research will develop a catenary method to determine the sag and tension analysis on the 275 kV transmission line conductors. The catenary method is dependent on the equation of the weight of the conductor, the maximum tensile stress of the conducting wire, the length of the span, and the maximum sag of the conductor. The method will be used in determining the value of sag and tension with the design of the model using software AutoCAD. The results of research for the same tower sag height of 6.86 m, with a tension of 4610.83 kg and a conductor length of 401.06 m, while sag for the tower is not the same height of 8.14 m, with a tension of 4612.84 kg, and changes in conductor length 401.06 m. The increase in current causes the sag value to increase, when the minimum current sag value is 6.9828 m, and the maximum current sag value increases to 8.44 m. While the tension will decrease along so that temperature is increased the current minimum pressure of 4531.27kg, and at the time of maximum tension of 3749.728kg. Sag and tension are also affected by ambient temperature when the minimum temperature is 20 ℃ sags are 6.8621 m and when the maximum temperature is 40 ℃ sag increases to 7.793492 m. Tension will decrease with each increase in temperature when the minimum temperature is 20 ℃ tension 4610.538 kg when the maximum temperature is 40 ℃ the tension is reduced to 4062.345 kg.
Recent trend and future prospect in optimization of electric vehicle charging: a systematic review Fauzi, Muhammad Ridha; Zakri, Azriyenni Azhari; Syafii, Syafii
Bulletin of Electrical Engineering and Informatics Vol 13, No 4: August 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v13i4.8017

Abstract

Electric vehicles charging (EVs) must be done optimally to minimize the impact it causes. EVs are being recognized as a potential way to decrease greenhouse gas emissions and combat climate change. However, there are still difficulties in optimizing these systems to minimize operating costs and EVs charging waiting times. This study investigates several industrial, commercial and residential charging stations. The primary objective of this study is to systematically review the existing literature on optimizing EV charging. The collection of data was centered on scholarly articles released between the years 2018 and 2023 from Scopus, IEEE Xplore. This study presents a systematic literature review of optimizing EVs charging. As a result, 43 EVs charging optimization studies were obtained which were investigated and studied further. Identify and analysis the selected studies, there are two research topics and trends most frequently addressed by researchers: scheduling and coordination. The four most applied methods in EVs charging are identified: particle swarm optimization (PSO), genetic algorithm (GA), linear programming (LP) method, and evolutionary algorithms (EA). Future research directions: develop advanced optimization algorithms, investigating the integration of renewable energy sources into the charging infrastructure, exploring the potential of vehicle-to-grid (V2G) services, studying the impact of EVs charging on the power grid and developing strategies, considering the optimization of charging schedules and coordination strategies for large-scale EVs fleets.
A Microcontroller-Based Wireless System for Sliding Book Learning Media Tools Ahmad, Fauzan; Kurnia, Rita; Zakri, Azriyenni Azhari; Pernantah, Piki Setri
DIELEKTRIKA Vol 9 No 2 (2022): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v9i2.313

Abstract

This design was performed in the development of the Sliding Book learning media tool by utilizing an Arduino UNO R3-based microcontroller control system. The addition of sensors and controllers in the form of Photodiode sensors and infrared remotes is undertaken with the intention of creating a wireless control system. The data is retrieved in the form of voltage data, current data, and the length of time used in one sliding book viewing. The outcome of this study is a sliding book learning media control design with an Arduino-based wireless control system and the addition of an infrared remote sensor and a photodiode sensor. The test results indicate that the command function of the infrared remote works well to provide wireless control of the motor rotation direction of the sliding book tool on the forward, reverse, and stop displays, and when determining the sliding page position, the photodiode sensor function corresponds to the design position of the page boundary reading. Sliding book control average power consumption was shown to be 1.67 Watts for the forward button for a voltage of 5V, 1.68 Watts for 12V and 1.47 Watts for the reverse button for a voltage of 5V. The power requirement for reverse rotation with a 5V source is 1.47 watts on the reverse button, while a 12V source requires 1.69 watts.
Modelling and Analysis using The Thyristors Controlled Series Compensators for Electrical Power Systems ZAKRI, AZRIYENNI AZHARI; SIREGAR, TAUFIQ RAHMAN; MUSTAFA, MOHD WAZIR; SUNANDA, WAHRI
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 11, No 3: Published July 2023
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v11i3.691

Abstract

ABSTRAKUntuk memastikan bahwa kebutuhan masyarakat yang berkembang terpenuhi dan tingkat ketergantungan sistem cukup, sangat penting untuk mengelola dan memelihara sistem distribusi daya yang andal. Karena jarak transmisi yang jauh, tidak mungkin untuk mencegah kerusakan instalasi pada sistem tenaga listrik. Hal ini berdampak signifikan pada transmisi tenaga listrik, yang mengakibatkan penurunan tegangan dan hilangnya energi listrik. Penggunaan Flexible Alternating Current Transmission System (FACTS) merupakan salah satu cara untuk mengurangi ketidakstabilan tegangan dan meningkatkan kehandalan jaringan tenaga listrik. Perangkat FACTS adalah Thyristor Controlled Series Compensator (TCSC). Kapasitas daya saluran transmisi ditingkatkan dengan menambahkan TCSC secara seri dengan saluran transmisi. Untuk meningkatkan aliran daya, reaktansi TCSC dapat disesuaikan untuk memodulasi reaktansi saluran transmisi.Kata kunci: sistem tenaga listrik, FACTS, kompensator seri, tiristor, TCSC ABSTRACTIn order to ensure that the expanding requirements of the community are met and that the system's level of dependability is sufficient, it is crucial to manage and maintain a reliable power distribution system. Due to the extensive transmission distance, it is impossible to prevent installation malfunctions in the electric power system. This has a significant impact on the transmission of electric power, resulting in a voltage decrease and a loss of electrical energy. Using a Flexible Alternating Current Transmission System (FACTS) is one way to reduce voltage instability and improve the dependability of the electrical power grid. A FACTS device is the Thyristor Controlled Series Compensator (TCSC). The power capacity of the transmission line is increased by adding the TCSC in series with the transmission line. In order to increase power flow, the TCSC's reactance can be adjusted to modulate the transmission line's reactance.Keywords: electrical power system, FACTS, series compensators, thyristors, TCSC
Performance Evaluation of Overcurrent Relay and Ground Fault Relay Coordination in Distribution Feeder Azriyenni Azhari Zakri; Rezky Almi Ramadhan; Wahri Sunanda
Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) Vol 11 No 1 (2024): Jurnal Ecotipe, April 2024
Publisher : Jurusan Teknik Elektro, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jurnalecotipe.v11i1.4487

Abstract

Reliable and sustainable electrical distribution systems require effective protection measures against internal and external disturbances, especially short-circuit disturbances, to avoid damage to the equipment. Overcurrent relays (OCR) and ground fault relays (GFR) play an important role in the safety of the distribution network. To improve performance, evaluation of relay coordination is essential. During the short circuit, the nearest relay to the fault point is activated first and the backup relay is activated if the fault current exceeds the adjustment of the main relay. Coordination ensures that timely signaling is sent to interrupt the circuit. Inspection of the OCR relay revealed that it did not comply with the IEC 60255 standard and consequently adjusted the classification time to 0.402 seconds. Similarly, the results of the GFR relay inspection did not meet the standards and required an adjustment of the evaluation time to 0.492 seconds. Resolving these deviations is crucial to maintaining the reliability and compliance of the distribution network with industry standards, ensuring that the protection relays respond quickly and effectively to disturbances, thereby preventing possible damage to equipment
Optimizing energy management in electric vehicle charging using firefly algorithm Fauzi, Muhammad Ridha; Zakri, Azriyenni Azhari; Syafii, Syafii
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.pp864-872

Abstract

The transition to electric vehicles (EVs) poses significant challenges in the management of electric vehicle charging stations (EVCS), especially regarding the integration of renewable energy to ensure efficiency and sustainability. This study aims to optimize the energy management system in EVCS that takes into account technological aspects. The algorithm being proposed is specifically created for a 100 kW EVCS and utilizes the firefly algorithm to maximize renewable energy utilization and minimize charging costs. The research methodology includes the development of an optimization framework that combines solar power generation with the Firefly-based optimization algorithm, which considers factors such as power demand, battery capacity, and tariff fluctuations. Simulations show that the algorithm is able to increase solar energy utilization by up to 80%, while reducing charging costs during peak hours. The results also emphasize the importance of real-time energy management to address power demand fluctuations and reduce adverse impacts on the electricity grid. This study concludes that the firefly algorithm is effective in supporting energy management in renewable energy-based EVCS, providing essential knowledge for the development of sustainable charging system within the future.
Co-Authors A. Hamzah Abdul Gafar Arsaf Agus Ika Putra Al Imam Akbar Almasdi Syahza Amir Hamzah Andewi Rokhmawati Anto Anto, Anto Apriyal, Derry Aras Mulyadi Asmar Budiman, Dzaki D. Y. Sukma D.Y. Sukma Deni Irwansyah Dian Yayan Sukma, Dian Yayan Dicky Novriandi Dirman Hanafi Dohardo P H Simanullang Dohardo P.H. Simanulang Dohardo P.H. Simanulang, Dohardo P.H. Edi Susilo Edy Ervianto F. Yaser Fahrul Rozi Fahrul Rozi Fauzan Ahmad, Fauzan Feblil Huda Feranita Feranita Firdaus Sutan Firdaus, Hari Fri Murdia Fri Murdiya, Fri Hanggun Syahadad Hanggun Syahadat Hari Firdaus Hari Firdaus Herman Syaibi Hidayat Hidayat I Gusti Bagus Wiksuana Ibim Sofimieari Ihwallibi Tribowo Ihwallibi Tribowo, Ihwallibi Ikhma Zurani Ikma Zurani Insani, Ridho Syahrul Ismail, Ihsan Jafaru Usman Khumaini, M Rois M.E. Dame M.W. Mustafa Makmur Saini Missi Ebta Dame Missi Ebta Dame, Missi Ebta Mitratul Qhuaris Mohd Wazir Mustafa Mohd Wazir Mustafa Mohd Wazir Mustafa Muhammad Fauzan Muhammad Hamdy Maadjid Muhammad Ridha Fauzi Muhammad Septian Dwi Cahyo Naila Zareen Novriandi, Dicky Nurhalim Dani Ali Nurhalim Nurhalim Nurhalim Nurhalim, Nurhalim Pedia Aldy Pernantah, Piki Setri R. Febriyursandi Rangga Eka Saputra Rezky Almi Ramadhan Rezky Almi Ramadhan Riski Febriyursandi Rita Kurnia Rofi Hariadi Rosma, Iswadi Hasyim Rudy Kurniawan Rudy Kurniawan Sandy Ahmad Sandy Ahmad Saputra, Rangga Eka Simanullang, Dohardo P.H. SIREGAR, TAUFIQ RAHMAN Sofimieari, Ibim Suwitno Syafii . Syukri Darmawan Syukri Darmawan Taupiq Rahman Siregar Tegar Arieyasha Fikri Tristianty, Wenny Dwi Tua, Sahala Wahri Sunanda Wahri Sunanda Wahri Sunanda Welly Yandi Yaser, Fahroli Yelmida Azis Yeni Kusumawaty Yuwandira, Yoldi