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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Mechatronics, Electrical Power, and Vehicular Technology Abdimas Semesta Teknika Mekanika: Majalah Ilmiah Mekanika Journal of Nursing and Public Health (JNPH) Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat JiTEKH (Jurnal Ilmiah Teknologi Harapan) Journal of Electrical, Electronic, Information, and Communication Technology (JEEICT) International Journal of Social Learning (IJSL) Semar : Jurnal Sosial dan Pengabdian Masyarakat Riset Sains dan Teknologi Kelautan SCIENTIA JOURNAL : Jurnal Ilmiah Mahasiswa Jurnal kiprah pendidikan
Muhammad Nizam
Department of Electrical Engineering, Sebelas Maret University, Surakarta National Center for Sustainable Transportation Technology, Bandung, Indonesia
Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Nursing Social Sciences Other

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PERAN KEPALA MADRASAH DALAM SUPERVISI PEMBELAJARAN GURU DI MADRASAH IBTIDAIYAH FATULMUBIN Asia Boy, Nur; Sengaji, Asmawati R.; Almuhtadi Billah, Louay; Nizam, Muhammad
Jurnal Kiprah Pendidikan Vol. 1 No. 2 (2022): Jurnal Kiprah Pendidikan | April 2022
Publisher : Program Studi Pendididikan Guru Sekolah Dasar Fakultas Keguruan dan Ilmu Pendidikan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33578/kpd.v1i2.31

Abstract

Penelitian ini bertujuan untuk menjawab mengenai peran Kepala Madrasah dalam supervisi pembelajaran guru di MIS Fatulmubin. Penelitian ini menggunakan metode kualitatif dengan jenis penelitian deskriptif. Teknik yang digunakan dalam penelitian ini yaitu menggunakan teknik pengumpulan data observasi, wawancara, kuisioner dan dokumentasi. Hasil penelitian wawancara menunjukkan bahwa Supervisi yang dilakukan oleh Kepala Madrasah terhadap guru maupun pegawai dengan cara membuat pembinaan, mensosialisasikan, membuat jadwal pelaksanaan, menganalisis dan mengambil tindakan lanjut berjalan dengan baik serta peran Kepala Madrasah dalam supervisi mengunjungi kelas sangatlah penting karena untuk memperbaiki kinerja guru, yaitu pengajaran agar lebih baik lagi. Serta berguna untuk meningkatkan daya tarik bagi siswa untuk terciptanya kelas dalam kondisi yang menyenangkan dan nyaman untuk berjalannya proses belajar mengajar. Pelaksanaan supervisi pembelajaran oleh kepala madrasah diklaim sangat baik sebab hasil supervisi tersebut guru mampu mendapatkan pengetahuan serta pula guru mampu mengetahui kekurangan dan kelebihan mereka selama ini dalam melaksanakan tugas menjadi pendidik.  
Analisis Penambahan Teknologi Baterai pada Diesel Electric Multiple Unit (DEMU) Setyawan, Romal Hadi; Nizam, Muhammad; Putra, Mufti Reza Aulia
JiTEKH Vol. 14 No. 1 (2026): March 2026
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v14i1.1356

Abstract

This study analyzes the impact of integrating a 70 kWh Lithium Titanate Oxide (LTO)-based Battery Energy Storage System (BESS) into the traction system of a Diesel Electric Multiple Unit (DEMU) operating on the Bandung–Cimahi–Padalarang corridor. Two primary problems are addressed: (1) regenerative braking energy wasted as heat in brake resistors, and (2) limited diesel engine power ramp-up response during acceleration. The methodology applies technical analysis based on real operational data loggers at 0.5-second resolution and numerical power flow simulation on a 1,500 VDC link across 12 daily trip cycles. Results show that battery integration increases initial traction effort by 18.1% (82.75 kN → 97.77 kN), reduces 0–25 km/h acceleration time by 26.7% (24.54 s → 17.98 s), and improves notch-P7 acceleration by 39.3%. Fuel savings reach 4.99 liters/cycle (7.14%), equivalent to 21,856 liters/year. Recovered regenerative energy is 6.48 kWh/cycle. CO₂ reductions total 59,228 kg/year, equivalent to planting 2,692 trees. Investment analysis yields a positive NPV of IDR 192,064,475 with a 2.35-year payback period, within the 3.42-year battery service life.
The Effect of Battery Manufacturing Under Different Conditions and Its Contribution to CO Emissions Putra, Mufti Reza Aulia; Nizam, Muhammad; Setiawan, Bagas; Santoso, Henry Probo
Mekanika: Majalah Ilmiah Mekanika Vol 24, No 1 (2025): MEKANIKA : Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v24i1.99093

Abstract

Lithium-ion (Li-ion) batteries play a crucial role as energy sources for electric vehicles and portable electronic devices due to their high energy density. However, this high energy density leads to increased temperatures during operation, which negatively impacts the performance of nickel strips as the primary electrical connectors within the battery. Suboptimal welding of nickel strips results in safety issues, evidenced by gas leaks from the battery. This research aims to explore the impact of welding defects on battery performance, considering the role of gas sensors in enhancing safety. The test samples used are nickel strips with a thickness of 0.1 mm and a width of 5 mm, evaluated using varying currents of 10A, 20A, 40A, and 50A at room temperature. Observations were made regarding nickel degradation, followed by an analysis of carbon monoxide (CO) and carbon dioxide (CO₂) emissions. The results indicate a temperature increase of up to 78,8°C at the nickel tip, along with the identification of three welding points representing efficient values. Furthermore, the welding results on the battery produced microstructural defects that led to an increase in CO emissions by 18 ppm and CO₂ emissions by 500 ppm during the 1C charging process until reaching 100%.
REGENERATIVE BRAKING MONITORING SYSTEM OF ELECTRIC VEHICLE Pratama, Jusuf Abimas; Anwar, Miftahul; Arsri, Sifaus Wulaning; Farisi, Ferdiansyah Ashil; Nizam, Muhammad
Journal of Electrical, Electronic, Information, and Communication Technology Vol 1, No 1 (2019): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.v1i1.34474

Abstract

Electric vehicles is in rapid development. The energy commonly used as a driving force for electric vehicles comes from batteries. The development of electric vehicle technology is currently concentrated on efforts to charge the battery used by utilizing the power wasted when braking electrically. The gearbox and final drive are installed as a mechanical transmission system for electric vehicles to increase the torque of the BLDC motor as the main driving force of the vehicle. The regenerative process occurs when the Kelly-KBL motor controller electric braking feature is activated. For this reason, Arduino Mega and LabVIEW software are used to observe the current and voltage of lead acid batteries with voltage 48 V and capacity 225 Ah (C20). In addition, a 2 kW BLDC motor RPM was also observed in the electric braking monitoring system. From the results of monitoring and data collection, the vehicle traveled a distance of 36.06 m in 68 s time intervals with an average speed of 16.8 m / s. The average torque value when electric braking on a BLDC motor supplies 154 Nm, while the average torque of the vehicle is 996.99 Nm. The average regenerative power of the wheels is 17.07 kW, while the average mechanical power of the wheels is 13.67 kW. Coulometric state of charge (SOC) shows an increase in battery capacity of 4.27% and 99.97% voltage SOC at the beginning of the activation of the electric brake pedal. Maximum battery power movement when charging, 2.25 kW is caused by the activation of the electric brake pedal. Whereas when using a maximum of 1.52 kW. The application of electric braking has a power consumption efficiency of 0.042%. and charging power charging 18.97%.
Design of Microhydro Power Plants Based on Load Flow and Short Circuit Study Using ETAP: A Case Study in East Java, Indonesia Apribowo, Chico Hermanu Brillianto; Nizam, Muhammad; Ramelan, Agus; Maghfiroh, Hari; Vici Yunitasari, Aulia
Journal of Electrical, Electronic, Information, and Communication Technology Vol 4, No 2 (2022): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.4.2.67505

Abstract

This study was conducted to determine the feasibility level of the microhydro power plant development plan in Ngentep Village for the Off Grid On Grid system system and Sarangan Lake, Magetan Regency, East Java. The methodology used includes field survey activities, hydrological analysis, power and energy calculations, mechanical and electrical equipment planning, and technical analysis. In this system there are 4 study cases, including the Off Grid system in Ngntep, the Off Grid system with Hybrid in Ngentep, the On Grid system in Sarangan Lake and the on grid system with hybrid in Sarangan Lake. The results showed that the water discharge was able to generate minimal power in Sarangan Lake and Ngentep, 1.59kW and 1.18kW respectively. Power value for the On Grid system with a value of 1,598 kW. While the power value for Off Grid is 0.072 kW. And has a power factor of up to 99.7% but this is very helpful for the community, especially those in remote rural areas and suppliers in tourist areas. As for the current value in the On Grid system is 2.126 kA and for the Off Grid system it is 1.0209 kA. 
Development of Solar Power Plant to Support Smart Farming 4.0 at Hubbul Khoir Islamic Boarding School Indonesia Ibrahim, Sutrisno W.; Nizam, Muhammad; Ramelan, Agus; Nugroho, Adriel Satrio; Putri, Salsabila
Journal of Electrical, Electronic, Information, and Communication Technology Vol 5, No 2 (2023): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.5.2.77435

Abstract

Electricity is a very crucial thing in human life today such as for communications, education, offices, household appliances, and transportation. Unfortunately, most of the electricity in Indonesia is still generated by fossil fuels such as coal. Indonesia which is on the equator has an advantage in solar power generation. Every area in Indonesia gets sunlight for a full year. In this paper, we develop a 1.62 kWp solar power plant at the Hubbul Khoir Islamic Boarding School Indonesia. Energy generated from solar panels is used to support the hydroponic farming system owned by the Islamic boarding school. Economic analysis is used to find out whether the installed generating system is profitable or not. Power quality analysis is used to determine whether the load can be supplied with good power quality. The results obtained by the monitoring system can monitor the PV output power and the power to the load with a display on the LCD screen and on the web with overall accuracy above 96%, economic analysis results show that the system will return on investment after 6.8 years with a profit in the 25th year of Rp20,871,282, and quality the power in this system has good power quality from the PLN side and the inverter side.
Experimental Study of Lithium-ion Battery Performance Based on Mini-channel Cooling Plate Rushadiawan, Ihsan Pratama; Tjahjana, Dominicus Danardono Dwi Prija; Nizam, Muhammad; Arifwardana, Julian Fikri; Putra, Mufti Reza Aulia
Journal of Electrical, Electronic, Information, and Communication Technology Vol 6, No 2 (2024): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.6.2.92488

Abstract

Making efficient batteries is important nowadays. One potential problem that can hinder this is the thermal runaway that occurs in battery cells. There are various causes of thermal runaway, one of the most common is an increase in temperature that exceeds the optimal allowable limit. Additional cooling will be required in vehicles that use batteries. Battery Thermal Management System (BTMS) with mini-channel cooling plate is one of the methods often used to maintain battery performance. In this study, the performance of Lithium-ion batteries is affected by fluid flow velocity. The experimental process was carried out by charging and discharging with a C-rate of 1C. Cooling is done with ethylene glycol fluid with fluid velocity variations of 0.21 L/min; 0.42 L/min and 0.63 L/min. The results show that fluid flow velocity affects the final battery temperature and battery performance. The optimal fluid velocity is shown at 4.2 L/min. At this speed it can reduce the battery temperature by 6.7°C.
Design and Build Automatic Transfer Switch (ATS) Based Internet of Things on Microgrid System Putera, Andhika Rizkita; Nizam, Muhammad; Adriyanto, Feri
Journal of Electrical, Electronic, Information, and Communication Technology Vol 4, No 2 (2022): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.4.2.64700

Abstract

Electrical energy is a primary human requirement for continuously operating electronic devices. However, nonrenewable electrical energy is becoming increasingly scarce. As a backup power source, regenerative energy sources are an option. Because the conventional power grid transfer system takes a relatively long time, the application of a control system on the power grid transfer automatically can maximize efficiency, safety, and accuracy. In this study, an ATS system was developed using the electrical grid switching method for 300ms, 600ms, and 1000ms, as well as IoT to optimize the ATS manual override system with monitor voltage, current, and power. The test results show that the switching accuracy of 300ms is 98.40% and 98.18% with an average voltage of 19.65V and 41.22V when switching, 600ms switching is 98.14% and 99.25% with an average voltage of 17.77V and 18.18V when switching, and 1000ms switching is 99.40% and 99.41% with an average voltage of 17.52V and 21.05V, respectively. The voltage overshoot is obtained for 16ms and 40ms in linear loading and is stable within 2ms. There is harmonic distortion when loading non-linear for 9 cycles and 2 cycles of periodic frequency. The hardware data transmission accuracy is 97.94%, and the success rate of manual override is 100%.
V2G And G2V System Design As An Alternative Power On Microgrid With Smart Switching Method Based On Microcontroller Pangestu, Alvian Aji; Nizam, Muhammad; Ramelan, Agus
Journal of Electrical, Electronic, Information, and Communication Technology Vol 4, No 2 (2022): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.4.2.65035

Abstract

Solar energy is very easy to get in Indonesia because it is located in the tropics and equatorial regions. With the abundance of solar energy, the PLTS system is very suitable for use in Indonesia. Apart from these advantages, the microgrid system with a PV mini-grid still has drawbacks, namely intermittent sun exposure, so the reliability of the PV mini-grid system is affected by time, climate, and weather. Therefore, the PLTS system requires electrical energy storage technology in the form of batteries. In addition to the use of batteries, the use of battery electric vehicles (BEV) can also be used as an alternative to help supply power to the microgrid system. Its application uses the Vehicle to Grid (V2G) and Grid to Vehicle (G2V) methods. In this study, the design of the V2G and G2V systems was made with the Smart Switching method as an alternative power source to the microgrid system. The Smart Switching method is used to consider the condition of the battery to prevent overheating, overcharging, and deep discharging. It is equipped with a battery condition monitoring system that can be monitored on the LCD screen. The results of this study showed that the design of the V2G and G2V switching systems can run according to the plan. The system can provide power to the microgrid busbar. The system can automatically cut off when the maximum temperature, the upper and lower limits of the battery voltage, and the monitoring system can provide information in the form of battery conditions, temperature values, voltages, and currents. Thus, the V2G and G2V systems with the Smart Switching method can already be applied as an alternative power source to the microgrid system.
DESIGN AND DEVELOPMENT OF FAST CHARGING BATTERY USING FUZZY LOGIC CONTROL TECHNIQUE Nizam, Muhammad; Ali, Naji Abdalaziz
Journal of Electrical, Electronic, Information, and Communication Technology Vol 1, No 1 (2019): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.v1i1.34770

Abstract

Battery charging is an important issue when it is associated with battery life and cycle performance. The aim of this research is to design and promote fast battery chargers using fuzzy logic control techniques (FLC) for LiFePO4 batteries have been developed. The proposed charger is controlled by voltage and current to activate the PWM duty. The results show that the proposed battery charger has the potential to accelerate charging up to 37% at the rate when charging 2C. This means it is faster than the existing filling. The charger proposed by the FLC method is also capable of charging LiFePO4 batteries with greater efficiency, which is 82%. It can be concluded that the FLC application method has better performance than the CC-CV method
Co-Authors Abadi, Muhammad Alkhan Dwiki Adriyanto, Feri Ajat Sudrajat Ali, Naji Abdalaziz Almuhtadi Billah, Louay Anwar, Miftahul Anwar, Miftahul Apribowo, Chico Hermanu Brillianto Arifwardana, Julian Fikri Arsri, Sifaus Wulaning Asia Boy, Nur Atia, Hasan M.S. Bagas Setiawan, Bagas Baiek, Mohamed Milad Brilianto Apribowo, Chico Hermanu Buston, Erni Dalimin, Mohd Noh Danardono Dwi Prija Tjahjana, Dominicus Didik Djoko Susilo dompak, timbul Effendi, Pauzan Elfany, Yuna Esmaio, Ahmad E. Farisi, Ferdiansyah Ashil Herry Widyastono, Herry Ibrahim, Sutrisno W. Inayati Inayati Jasmidi Jasmidi Joko Slamet Saputro Juwitaningsih, Tita Magfiroh, Hari Maghfiroh, Hari Mayang Sari Meiyanto Eko Sulistyo Mufti Reza Aulia Putra Muhammad Akhyar Nugroho, Adriel Satrio Nur Indah, Nur Nurul Nurul Pangestu, Alvian Aji Pratama, Jusuf Abimas Putera, Andhika Rizkita Putra, Mufti Reza Aulia Putri, Salsabila Rabiah Afifah Daulay Rachmi, Naila Syabina Ramelan, Agus Ranteallo, Rara Ratna Sari Dewi Rini Anggrainingsih Ritonga, Dina Arfah Rushadiawan, Ihsan Pratama Sahdan, Mohd Zainizan Santoso, Henry Probo Sengaji, Asmawati R. Setyawan, Romal Hadi Sinaga, Anggian Nurjelita Siregar, Muhammad Isa Sri Sumarni Ubaidillah Ubaidillah Vici Yunitasari, Aulia Warindi D Widya, Risa Dwy Yusfiani, Marnida