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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) International Journal of Advances in Applied Sciences Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat
Muhira Dzar Faraby, Muhira Dzar
Doctoral Student Electrical Engineering, ITS, Surabaya
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Public Health

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Optimal inverter-based distributed generation in ULP Way Halim considering harmonic distortion Sofyan, Sofyan; Faraby, Muhira Dzar; Akhmad, Satriani Said; Gaffar, Ahmad; Fitriati, Andi; Elviralita, Yoan; Muchtar, Akhyar
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 6: December 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i6.pp6058-6067

Abstract

Integration of distributed generation (DG) based on the use of new renewable energy is considered to be able to increase the capability of the electric power distribution system. However, the use of inverter-based DG is not optimal, it can worsen the condition of the system, especially in terms of the spread of harmonic distortion which can damage the equipment. This is due to the inverter-based DG technology, apart from supplying electrical energy, DG also injects harmonic currents from existing semiconductor components. This research discusses optimization placement of inverter-based DG using the multi objective particle swarm optimization (MOPSO) method which was tested on the Unit Layanan Pelaksana (ULP) Way Halim 88-bus radial distribution system based on MALTAB 2020b to increase the efficiency of the electrical system by reducing losses and %THDv. The inverter-based DG placed on 24 bus points with a capacity of 690 kW can reduce losses by up to 12.74 kW or 14.96% and all %THDv values for each bus are below 5%.
Network reconfiguration for improving performance system in ULP Sungguminasa considering nonlinear loads Faraby, Muhira Dzar; Rahman, Yuli Asmi; Sofyan, Sofyan; Thaha, Sarma; Lukman, Musfirah Putri; Amaliah, Asma; Mustika, Mustika; Sirad, Mochammad Apriyadi Hadi; Sonita, Anisya
International Journal of Electrical and Computer Engineering (IJECE) Vol 14, No 6: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v14i6.pp6066-6075

Abstract

Network reconfiguration is a very economical technique that can improve electrical system performance. The development of semiconductor electrical equipment technology to meet human needs and work, known as nonlinear loads, has had a negative impact in the form of the spread of harmonic distortion which can accelerate the aging process and even damage equipment. In this paper, the effect of the optimization results of network reconfiguration techniques on the Sungguminasa 165-bus Executive Unit Service or Unit Layanan Pelanggan (ULP) electrical system is contaminated with harmonic distortion due to the use of nonlinear loads. This technique was optimized using the particle swarm optimization (PSO) method with a multi objective function in the form of minimizing %THDv and total losses with several limitations. Simulation results from the optimization process of several study cases are shown by activating the five tie switches from the network reconfiguration process on the Sungguminasa 165-bus ULP system which is able to improve power quality by reducing the average %THDv by 3.89% and total losses by 8.19%.
Design and implementation of an internet of things enabled stress level detection system using fuzzy logic method for enhanced accuracy and real-time monitoring Nurhayati, Nurhayati; Hidayah, Nur; Ahyar, Muh.; Asriyadi, Asriyadi; Yuniarti, Yuniarti; Faraby, Muhira Dzar; Mustika, Mustika; Akhriana, Asmah; Mukhlisin, Mukhlisin
International Journal of Electrical and Computer Engineering (IJECE) Vol 15, No 2: April 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v15i2.pp2499-2512

Abstract

Stress can affect individuals of all ages, from the young to the elderly, leading to a compromised immune system and increased susceptibility to illness. This study addresses this issue by developing an internet of things (IoT) based stress level detection system utilizing fuzzy logic methods. The device measures multiple physiological parameters and processes the data using an ESP32 microcontroller. This allows individuals to monitor and understand their stress levels efficiently and automatically through a liquid crystal display (LCD) display and Android devices. The system integrates various sensors to capture vital signs such as heart rate (HR), respiration rate, and body temperature. These readings are then analyzed using its algorithms to determine the stress level, which is displayed on both the onboard LCD and the connected Android device via an IoT interface. This real-time feedback mechanism empowers users to take proactive measures in stress management. Testing and validation of the device were conducted by comparing its readings with the depression anxiety stress scales (DASS-42) test results. The comparison showed an 80% correlation, demonstrating the device’s accuracy and reliability in detecting stress levels. This innovative approach leverages the advantages of IoT and fuzzy logic to provide a practical and effective solution for stress monitoring and management.
Implementation of PLTS as a Lighting System for the Waetuo Fishermen's Group Chart, Pinrang Regency as an Effort to Improve the Economy of Coastal Communities Muslimin, Zaenab; Mayasari, Fitriyanti; Irwan, Irninthya Nanda Pratami; Amir, Ashadi; faraby, Muhira Dzar; Usman, Usman; Idris, Ahmad Rosyid
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 8 No 1 (2025): Community Empowerment through Higher Education Community Service Programs
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v8i1.540

Abstract

The Wae Tuoe Fishermen Group in Pinrang Regency is a coastal community located in Suppa District, Pinrang Regency, South Sulawesi Province, where the majority of the population relies on marine resources for their livelihood. The bagang is a structure made of wood or bamboo located in the middle of the sea, about 500 meters to 2 kilometers from the shore, used by fishermen to catch or store fish. The bagang has great potential but is not optimally utilized by fishermen as a source of livelihood and economic improvement. This is because the fish catch is maximized at night. The limited lighting, which could help optimize the fishing process, is due to the restricted availability of electricity from generators. The development of solar cell technology, which can generate and store electricity, is a new breakthrough in the use of renewable energy. The use of solar cells is expected to provide an energy source for lighting on the bagang, allowing fishermen to maximize their activities at night. The solar cell lighting system is designed to supply six light points with a capacity of 5 x 50 watts operating at night from 7:00 PM to 4:00 AM. The design of the PLTS, which consists of two solar panels with a capacity of 550 Wp, four 12 V batteries with a capacity of 100 Ah, and a 1000-watt inverter, is expected to provide electricity as a lighting source for the bagang during the night. After conducting counseling and training on solar power plant (PLTS) technology, 18 out of 20 members of the Wae Tuoe Fishermen Group gained knowledge about the utilization, design, installation process, usage, and maintenance of PLTS technology.
Effect of cutting process using cutting insert of grade UTi20T Nur, Rusdi; Razak, Arthur Halik; Basongan, Yosrihard; Faraby, Muhira Dzar; Syahrisal, Syahrisal; Hidayat, Asrul
International Journal of Advances in Applied Sciences Vol 13, No 2: June 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v13.i2.pp401-410

Abstract

In the metal-cutting industry, the precision of the metal-cutting process is of paramount importance. Errors in the metal-cutting process not only lead to damage to the cutting tool but also result in the production of low-quality materials. The incorporation of insert materials in the cutting process is aimed at maintaining cutting precision and achieving superior results. This research seeks to investigate the impact of the cutting process utilizing grade KC5410 cutting insert under minimum quantity lubrication (MQL) Conditions. In this study, machining tests were conducted using the ALPHA 1350S 2-axis computer numerical control (CNC) lathe machine under MQL conditions, employing cutting tool inserts UTi20T supplied by Mitsubishi. Two types of tools were utilized in the cutting process, namely UTi20T. Critical aspects such as cutting force, total power consumption, surface roughness, and tool life were analyzed to provide comprehensive insights into the efficiency of the cutting process. The findings of this study significantly contribute to the understanding of how the integration of Grade KC5410 cutting inserts under MQL conditions can enhance the overall efficiency of metal-cutting operations. The successful machinability assessment was conducted by implementing sustainable machining practices.
Performance placement of BESS in the Sulawesi-Southern interconnected power system Muslimin, Zaenab; Gunadin, Indar Chaerah; Mayasari, Fitriyanti; Faraby, Muhira Dzar; Amaliah, Asma; Isminarti, Isminarti
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 4: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i4.pp2819-2830

Abstract

Frequency regulation and active power loss management are crucial aspects of power system operations. Battery energy storage systems (BESS) have emerged as an innovative solution to enhance grid performance, especially in addressing frequency fluctuations and reducing power losses. This study explores the role of BESS in optimizing frequency regulation and managing active power losses in the power system through several BESS integration scenarios. In this study, a BESS with a capacity of 8.437 MW was used and analyzed using symmetric steady-state simulations in DigSILENT PowerFactory software. The simulations aim to test the effectiveness of BESS in frequency regulation and minimizing active power losses in the Sulbagsel system. The analysis results show that implementing BESS can respond effectively to both over-frequency and under-frequency conditions in the Sulbagsel system. In the discharge scenario, BESS can reduce the system's average frequency by 0.02 Hz and decrease active power losses by up to 1.09 MW. Conversely, in the charge scenario, active power losses increase by 1.22 MW when the BESS is installed on Bus Tonasa. This study provides valuable insights for developing BESS-based frequency regulation strategies that contribute to the stability and efficiency of the power system.
Co-Authors Ahmad Gaffar Ahmad Rosyid Ahyar, Muh. Akhmad, Satriani Said Akhriana, Asmah Akhyar Muchtar, Akhyar Amaliah, Asma Andi Fitriati Arthur Halik Razak Ashadi Amir Asriyadi Asriyadi Asrul Hidayat Fitriyanti Mayasari Gunadin, Indar Chaerah Irninthya Nanda Pratami Irwan Isminarti, Isminarti Lukman, Musfirah Putri Mukhlisin Mukhlisin Mustika Mustika Nur Hidayah Nurhayati Nurhayati Rusdi Nur Sirad, Mochammad Apriyadi Hadi sofyan sofyan Sonita, Anisya Syahrisal, Syahrisal Thaha, Sarma Usman Usman Yoan Elviralita Yosrihard Basongan Yuli Asmi Rahman Yuniarti Yuniarti Zaenab Muslimin