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All Journal Jurnal Teknik Elektro PROtek : Jurnal Ilmiah Teknik Elektro JTT (Jurnal Teknologi Terpadu) Patria Artha Technological Journal INTEK: Jurnal Penelitian Jurnal Teknologi Terapan Jurnal Teknologi Elekterika Jurnal Abdi Insani Jurnal Nasional Teknik Elektro dan Teknologi Informasi Jurnal Teknik Elektro
Usman Usman
Politeknik Negeri Ujung Pandang
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering

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Design and Development of Solar Pump System for Automatic Watering of Shallots Muh. Ilham; Yuliana; Idris, Ahmad Rosyid; Usman; Achmad, Alamsyah
Jurnal Teknologi Elekterika Vol. 21 No. 2 (2024)
Publisher : Jurusan Teknik Elektro Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/elekterika.v21i2.5117

Abstract

Agriculture is a key sector of the Indonesian economy, with shallots being one of the most important commodities. However, limited access to electricity in rural areas is often a barrier to the implementation of efficient irrigation systems. This research focuses on developing an automatic shallot irrigation system using a solar pump. The system is designed by using solar panels to convert solar energy into electricity to power the water pump. They use an Arduino-based control system integrated with a real-time clock (RTC) to automatically set the watering schedule so that plants can be watered at the right time without human intervention. Tests were conducted on 96 m² of land to evaluate the performance of the automation system, energy efficiency, and system performance under actual operating conditions. The testing results show that the system can operate efficiently, with the solar panel generating enough energy to power the pump and maintain watering continuity. The system can reduce dependence on conventional electricity, providing a sustainable and environmentally friendly irrigation solution. As such, the system provides an effective solution for agricultural systems in areas with limited access to electricity, while supporting the use of renewable energy.
MEDIUM VOLTAGE INSULATOR CRACK DETECTION USING MOBILENetV2 AND TENSORFLOW Yani, Ahmad; Sofyan, Sofyan; Lukman, Musfirah Putri; Usman, Usman; Junaidi, Apri
Jurnal Teknologi Elekterika Vol. 22 No. 1 (2025)
Publisher : Jurusan Teknik Elektro Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/elekterika.v22i1.5420

Abstract

This study discusses the detection of medium voltage insulator cracks using object detection technology. This study uses medium voltage ceramic insulator image data at the ULP Daya Waste Material Warehouse. Ceramic insulator image data is categorized into good and damaged conditions. Preprocessing involves labeling, dividing train data, validation, and testing, and exporting data to Pascal VOC format. MobileNetV2 is implemented on Google Collab to train the object detection model. The evaluation of the model accuracy is in the COCO matrix, while the performance graph shows that the model can read objects well because the reading curve is in line with the smooth curve. Furthermore, this model is applied in creating an Android application that uses the device's camera to detect objects in real-time. This application processes images, converts from YUV to RGB, and performs object detection using the trained model. The detection results are displayed with bounding boxes and labels on the camera reviewer, namely the good class with a reading value of 1.0, the damaged class with a reading value of 0.67 and the background 1.0. This application also tracks detected objects and updates the display according to the detection results.
Investigating the Effect of PV Panel Mounting Orientation under Partial Shading Conditions (A Simulation-Based Study) Usman, Usman; Achmad , Alamsyah; Sofyan , Sofyan; Sirad, Mochammad Apriyadi Hadi; Hidayatullah, Syarif; Isman, Muh
INTEK: Jurnal Penelitian Vol 12 No 1 (2025): April 2025
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v12i1.5174

Abstract

This study aims to investigate the effect of shading on the mounting orientation of PV panel and the availability or unavailability of Bypass Diodes on the performance of PV panel under partially shading conditions. In this study, for each PV panel mounting orientation, the number of PV cells that received shading was grouped into three categories: 9 cells, 18 cells and 27 cells respectively with the shading fixed vertically. The study also considers the availability and unavailability of bypass diodes. The simulation results show that with vertical shading partially covering the PV cells, the landscape mounting orientation is the best orientation for PV panels with bypass diodes to avoid the partial shading effect
Microcontroller-based Design a Supporting System for Irradiance, Temperature and Tilt Angle Conditioning of PV Performance Measurement Ahmad Rosyid Idris; Usman Usman; Faturahman Fauzan; Alamsyah Achmad
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/q29bb079

Abstract

Several factors influence PV output, including irradiance, temperature, and panel tilt angle. Irradiance and tilt angle affect the Photovoltaic (PV) current, while temperature affects the PV voltage. To accurately measure the performance of PVs in the field, it is necessary to condition these three parameters. Therefore, a system should be created to condition these parameters. This research aims to develop a control and monitoring system based on the set point to condition irradiance, temperature, and tilt angle. This research started with system design, fabrication, functionality testing with the black box method, sensor reading accuracy, and PV performance testing. The functionality testing results indicate that each test item can perform as expected. The sensor testing revealed of 1%, 0.26%, and 1.8% errors for MLX90614, BH1750, and MPU6050, respectively. The system's performance was tested, and it was discovered that the input value, which is the setpoint of the three variables, i.e., irradiance, temperature, and tilt angle of the PV, can produce outputs that are almost the same as the input value and settling time is different to reach the setpoint of each parameter. PV performance measurement using this system can represent PV performance by conducting direct testing using direct sunlight.
Co-Authors Achmad , Alamsyah Achmad, Alamsyah Ahmad Rizal Sultan Ahmad Rosyid Ahmad Rosyid Idris Ahmad Rosyid Idris Ahmad Rosyid Idris Ahmad Rosyid Idris ahmad yani Akhyar Muchtar, Akhyar Alamsyah Achmad Alamsyah Achmad Alamsyah Achmad Andarini Asri Apri Junaidi, Apri Ardy Wirana As'ad Ramadhan Fahmi Ryadin Fajri Apriadi, Nur Fatmawati Azis Faturahman Fauzan Fikra Ramadhan Indra Indra Irfan Syamsuddin Isman, Muh Lestari, Nunik Lukman, Musfirah Putri Muh. Ikhra Aliefka Putramardani Muh. Ilham Muhammad Nur Yasir Utomo Muhammad Ruswandi Djalal Muhammad Thahir Muhammad Thalib Mustika Ayu Nurhadi Sasono Parawangsa, Akbar Naro Rahmansyah, Abdul Azis Rahmiani Habibuddin Sarma Thaha Sirad, Mochammad Apriyadi Hadi Sofyan Sofyan , Sofyan Sofyan Sofyan Sofyan Sofyan Sofyan Sofyan Sunding, Alang Syarif Hidayatullah Umar Muhammad Wobowo, Nanang Roni Yuliana Yuliana