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All Journal International Journal of Electrical and Computer Engineering Jurnal Teknik Mechatronics, Electrical Power, and Vehicular Technology Bulletin of Electrical Engineering and Informatics Jurnal Teknologi Rekayasa Mesin Jurnal EECCIS Jurnal Teknik Mesin JURNAL NASIONAL TEKNIK ELEKTRO JURNAL KAJIAN TEKNIK ELEKTRO Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Manajemen Informatika RESISTOR (Elektronika Kendali Telekomunikasi Tenaga Listrik Komputer) PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Jurnal Teknik Mesin Indonesia Jurnal Ilmiah Teknik Industri Indonesian Journal of Electrical Engineering and Computer Science Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Journal Of World Science Jurnal Nasional Teknik Elektro dan Teknologi Informasi Journal FORTEI-JEERI Jurnal Ilmiah Teknik Elektro J-ENSITEC (Journal of Engineering and Sustainable Technology) Jurnal Polimesin
Halim, Levin
Universitas Katolik Parahyangan
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Initial Design of Dual-Axis Solar Tracker to Increase Efficiency of Monocrystalline Solar Panel Using Fuzzy Logic Method Sin Euy Gun; Levin Halim; Faisal Wahab3
Journal FORTEI-JEERI Vol. 1 No. 2 (2020): FORTEI-JEERI
Publisher : Forum Pendidikan Tinggi Teknik Elektro Indonesia (FORTEI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (742.146 KB) | DOI: 10.46962/forteijeeri.v1i2.17

Abstract

Fossils and mines become the main sources for producing the electricity in Indonesia. Due to availability of the sources, the price gets higher and it has a bad impact to the environment. Therefore, we need a new source to produce the electricity. A solar energy can be a solution, it has an unlimited availability and it’s eco-friendly. Solar panel can be a media to convert sun energy to electrical energy. Solar panel will be more efficient if the face of the panel always facing toward the sun. In this research, a panel will be designed so it can always move towards the sun movement. Fuzzy logic method will be use to the tracking method because it can increase the efficiency higher. Fuzzy logic systems consist of 4 input and 2 output. The inputs are based on each LDR sensor and the output is the motor on each axis. Based on the calculation horizontal has a 0,73% error and the vertical has 0,41%.
PERANCANGAN AWAL DAN ANALISIS KINEMATIKA PURWARUPA MESIN JACRO: Indonesia Levin Halim; Muhammad Fadhilah Sudrajat
J-ENSITEC Vol. 9 No. 01 (2022): December 2022
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (945.911 KB) | DOI: 10.31949/jensitec.v9i01.3074

Abstract

Pengeboran merupakan sebuah kegiatan membuat lubang vertikal ke dalam tanah. Pengeboran dapat dilakukan di mana saja, contohnya tanah, tebing, gua dan lainnya. Pengeboran memiliki resiko kerja yang tinggi, terlebih lagi pengeboran di dalam gua. Dengan tingginya resiko pekerjaan tersebut maka dibuat purwarupa untuk melihat pergerakan mesin dalam keadaan wireless. Purwarupa ini terdapat beberapa kompo- nen yang dibutuhkan, yaitu arduino uno, driver motor L298N, NRF24L01+, motor DC, motor stepper dan modul ULN2003A. Purwarupa ini di analisa dengan metode kinematika forward. Purwarupa ini memiliki desain awal yang dibagi menjadi tiga, yaitu track, rig dan base. Pada bagian kinematika, diagram benda bebas di tentukan arah vektor. Kemudian setelah arah vektor ditentukan, tabel DH dapat ditentukan. Setelah itu tabel DH dapat dijadikan input untuk simulasi MATLAB
Perancangan Awal Sistem Automatic Self-Checkout Untuk Produk Buah Berbasis CNN dan Sensor Berat Loadcell Levin Halim; Wafi Faisal Falah; Nico Saputro
Jurnal Teknik Vol 21 No 1 (2023): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v21i1.255

Abstract

The check-out system is one of the most important systems when we make purchases at a shopping center, shops, supermarkets, or mini markets. Determining different types of fruit is one of the problems faced in making payments, especially in supermarkets, because cashiers must determine the category labeling and weight of a particular fruit to determine the price. In this research, a design is proposed which utilizes Deep Learning in the field of image processing using the Convolutional Neural Network (CNN) algorithm utilizing RaspberryPi3. In making a classification system that uses deep learning, there are several main process stages, such as dataset collection, system design, training, and testing to see the results of the designed CNN model. The processed dataset in this research is a fruit image dataset derived from the Fruits-360. The results of the learning process obtained CNN models with 100% accuracy and loss of ≤ 0.026. The results of the CNN model that has been carried out will be combined with the load cell sensor which is expected to be used as an automatic self-checkout, especially for fruits. On the other hand, the calibration process of the loadcell weight measurement sensor is conducted which resulting an error measurement rate of 0.2 grams.
Kajian Interkoneksi untuk Sistem Pembangkit Listrik Tenaga Surya On-Grid Levin Halim
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 21, Nomor 1, Agustus 2023
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jetri.v21i1.15297

Abstract

As an alternative source of green and renewable energy, a Solar Power Plant can be installed that utilizes solar cells. On-grid PV is one of the easiest types of PV systems to implement because it does not use batteries, but requires interconnection with the grid network system to run properly. On-grid PV interconnection requires technical study to review the impact of On-grid PV interconnection to the grid system and to review its compliance with the applicable Grid Code. Interconnection technical study consists power flow analysis, short circuit analysis, harmonic analysis, and transient stability analysis. The case study of the 7kW On-Grid PLTS installation is reviewed in this study, and the results of this technical study recommend that the On-Grid PLTS installation is feasible to operate and fulfills all the Grid-Code rules.
A critical evaluation of DC microgrid implementation in Indonesia: opportunities and challenges Levin Halim; Pinto Anugrah; Aditya Kurniawan; Khairuddin Karim
Indonesian Journal of Electrical Engineering and Computer Science Vol 34, No 2: May 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v34.i2.pp687-696

Abstract

This study thoroughly investigates the potential of direct current (DC) microgrids to enhance electricity access in rural and remote areas of Indonesia that continue to face significant obstacles despite ongoing national electrification efforts. Utilizing a mixed-methods approach, this research comprehensively evaluates socio-economic and technical factors that influence the adoption of DC microgrids. The results indicate that DC microgrids offer significant potential for enhancing energy access, reliability, and sustainability, particularly when combined with renewable energy sources. This aligns with Indonesia’s move towards renewable energy. Nevertheless, the analysis identifies significant obstacles, such as the substantial initial investment, the requirement for complete regulatory frameworks, and the technological complexities that need to be conquered. In conclusion, DC microgrids present a promising solution for rural electrification. However, the implementation requires a strategy that emphasizes strategic investments, policy innovation, and capacity-building initiatives. This research significantly contributes to the study of sustainable energy by evaluating the criticality of integrating policies and technology for implementing DC microgrids as a key factor in achieving sustainable energy access in Indonesia.
IMPLEMENTASI DAN PENGUJIAN PROTOTIPE TURBIN JENIS PROPELLER UNTUK PEMBANGKIT LISTRIK TENAGA MIKROHIDRO Sudiro, Rafiandi Dyaa; Halim, Levin; Arthaya, Bagus Made
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.1610

Abstract

The implementation of a small-scale Micro-Hydro Power Plant which considering a 2-meter water head river will be discussed in this research. Therefore, a Micro-Hydro Power Plant with a Propeller turbine type was implemented. The turbine components include the turbine wheel, blades, guide vanes, turbine housing, turbine cover, and discharge pipe. Each component was manufactured using a 3D printing process with PLA filament. The testing process involved a miniature dam made from a container with a height of 1 meter, connected vertically with pipes. Water flowing into the turbine rotates the turbine wheel, causing it to rotate on the turbine shaft. Output data, including rthe number of rotations (RPM) and torque (M), were collected using sensors placed on the turbine wheel shaft. The testing results of the prototype Propeller turbine showed an efficiency of over 90% at a flow rate of approximately 0.008 m^3/s. Under the ideal design conditions with 90% efficiency, the prototype turbine would operate at a rotation speed of 2880 RPM and generate a power output (P) of 66 Watts.
Kajian Interkoneksi untuk Sistem Pembangkit Listrik Tenaga Surya On-Grid Halim, Levin
Jetri : Jurnal Ilmiah Teknik Elektro Vol. 21 No. 1 (2023): Jetri, Volume 21, Nomor 1, Agustus 2023
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jetri.v21i1.15297

Abstract

As an alternative source of green and renewable energy, a Solar Power Plant can be installed that utilizes solar cells. On-grid PV is one of the easiest types of PV systems to implement because it does not use batteries, but requires interconnection with the grid network system to run properly. On-grid PV interconnection requires technical study to review the impact of On-grid PV interconnection to the grid system and to review its compliance with the applicable Grid Code. Interconnection technical study consists power flow analysis, short circuit analysis, harmonic analysis, and transient stability analysis. The case study of the 7kW On-Grid PLTS installation is reviewed in this study, and the results of this technical study recommend that the On-Grid PLTS installation is feasible to operate and fulfills all the Grid-Code rules.
Design and CFD simulation of guide vane for multistage Savonius wind turbine Devin, Dionisius; Halim, Levin; Arthaya, Bagus Made; Chandra, Jonathan
Journal of Mechatronics, Electrical Power, and Vehicular Technology Vol 14, No 2 (2023)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/j.mev.2023.v14.186-197

Abstract

This study proposes improving the performance of a fixed-axis multistage Savonius wind turbine by integrating a sixbladed guide vane. Guide vanes aim to direct the incoming wind towards the blades of the Savonius wind turbine so that it can increase the performance value of the turbine itself. There are two methods, the first method is computational fluid dynamics (CFD) simulation to evaluate the best performance guide vane angle variations. The second method is implementing real conditions using 3 m/s until 4.2 m/s wind speed. The implementation of the guide vane to the wind turbine will consider four (4) variants of angles (0°, 20°, 40°, and 60°). The purpose of testing with four kinds of guide vane angles is to find out which guide vane angle can provide the best results among other guide vane angles. This research proposed the initial design of the guide vane addition to the multistage Savonius wind turbine with a fixed rotary axis. From the CFD simulation, the implementation of a guide vane can improve the performance of the multistage Savonius wind turbine with a fixed rotary axis. On the other hand, for the proposed initial design in this research, the 20° angle of guide vane gives the best result compared to the 0°, 40°, 60°, and without guide vane.
Comparative evaluation of centralized and decentralized solar street lighting systems Joviancent, Kenzie; Halim, Levin; Naa, Christian Fredy
International Journal of Electrical and Computer Engineering (IJECE) Vol 14, No 5: October 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v14i5.pp4869-4878

Abstract

Inadequate lighting can hinder outdoor activities such as traffic or pedestrian access. Solar street lighting system is planned to provide sufficient lighting for roads lacking proper illumination. DIALux software uses simulation to determine the lamp power and pole specifications, followed by applying formulas to establish component specifications. In this research, a performance comparison based on voltage drop and power losses will be conducted for solar street lighting systems with decentralized and centralized systems. With a road length of 130 meters and a width of 5 meters, simulations were performed for each variable of lamps (10, 12, 19, and 30 Watt). The calculations show that 4 streetlights are needed, and simulation results indicated that the most suitable lamp power is 12 Watt. The analysis showed that the centralized and decentralized designs do not have voltage drops exceeding the applicable limit. However, the centralized design has higher power losses amounting to 3.68 Watt. Another advantage of the decentralized design is its independence, with each load powered by a separate solar panel, while the centralized design is vulnerable to the overall system. In conclusion, the decentralized design is more suitable for implementation after comparing the centralized and decentralized designs based on the voltage drop and power losses.
Simulasi Perancangan Turbin Propeller untuk Pembangkit Listrik Tenaga Air Berdasarkan Karakteristik Sungai Maliringan Dengan Metode Computational Dynamics Fluid (CFD) Halim, Levin; Nathanlius, David
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 8, No 1 (2019)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v8i1.5702

Abstract

Perancangan sebuah turbin dibutuhkan untuk mengkonversi energi yang terdapat pada sumber tenaga air menjadi energi kinetik yang digunakan untuk memutar poros generator sehingga menghasilkan energi listrik. Pada penelitian ini akan dirancang sebuah turbin propeller yang sesuai dengan karakteristik dari Sungai Maliringan sehingga daya yang dihasilkan oleh turbin propeller tersebut memiliki efisiensi yang maksimum. Daya yang dihasilkan oleh turbin dipengaruhi oleh karakteristik dari sumber tenaga air, yaitu debit air dan ketinggian jatuh air (head). Penelitian ini akan membahas tentang hasil simulasi dengan menggunakan metode Computational Dynamics Fluid (CFD) yang dilakukan dengan tujuan untuk memperoleh daya dan kecepatan putar yang dihasilkan oleh turbin. Turbin propeller ini dirancang berdasarkan karakteristik dari Sungai Maliringan dengan menggunakan software CAD SolidWork dan simulasi dilakukan dengan menggunakan software COMSOL Multiphysics
Co-Authors Aditya Kurniawan Alexander Matthew Ali Sadiyoko Alvin Rinaldi Wiharja Bagus Arthaya Cevin Hutabarat, Frans Chandra, Jonathan Christian Fredy Naa Christian Fredy Naa Devin, Dionisius Faisal Wahab Faisal Wahab3 Felicia A Purnama Felix K Kinata Fredy Naa, Christian Ghozi Witsqa Ramadhan, Muhammad Gun, Sin Euy Icha Pratama Manafe, Lucky Jonathan Chandra Joviancent, Kenzie Khairuddin Karim Lisuarung S.E. Pasande M Chaerul Arief Maydelyn A Soetrisno Muhammad Fadhilah Sudrajat Muhammad Nurdin Naa, Christian Fredy Nanang Hariyanto Nathanlius, David Nico Saputro Noya, Samuel Borgias Oetomo Sudjana Pinto Anugrah Rahayu, Triana Mugia Sena, Mikail Vadim Simorangkir, Arthur Sin Euy Gun Sucianti Adam, Alma Sudiro, Rafiandi Dyaa Wafi Faisal Falah Wiharja, Alvin Rinaldi