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Prototype Teknologi Home Assistant Berbasis Internet of Things (IoT) Irvawansyah Irvawansyah; Umar Muhammad; Muhammad Ihsan; Anjas Renanda; Kurnia Kurnia
Joule (Journal of Electrical Engineering). Vol 4, No 1: Februari 2023
Publisher : Politeknik Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61141/joule.v4i1.376

Abstract

Kondisi sosial masyarakat di zaman sekarang khususnya masyarakat menengah ke atas memiliki mobilitas yang tinggi, demgan sarana transportasi yang mendukung untuk perjalanan jauh, sehingga penduduk akan sering berpergian dan rumah sering dalam keadaan kosong yang mengakibatkan peralatan rumah sampai tidak terpantau sehinnga banyak pemborosan daya listrik yang sering terpakai. Melalui hal tersebut dirancanglah sebuah Prototype Teknologi Home Assistant yang berbasis Internet of Things (IoT). Penelitian ini memanfaatkan Wifi sebagai pusat koneksi sehingga dapat mengontrol semua sistem yang diberikan perintah dari Aplikasi Android ke Server Raspberry Pi4, kemudian memberikan perintah ke Arduino Mega +ESP8266. Home Assitant ini dapat berfungsi dengan delay 2 detiksehingga memudahkan dalam mengendalikan perangkat dari jarak jauh. Sistem Kontrol yang terdapat pada Home Assitantini berupa menyalakan dan mematikan lampu, membuka dan  menutup pengunci pintu serta gerbang, dan  mendeteksi  kebocoran gas  dengan menyalakan kipas sehingga gas terbuang. Pada pemakaian lampu dapat dilihat pada monitoring yang menggunakan sensor arus, dan tegangan dengan tambahan database dapat lihat pada website yang terhubung pada Wifi.
Perancangan Sistem Monitoring Penggunaan Daya Listrik Dan Load Controller Menggunakan Mikrokontroller Umar Muhammad; Rendra Darwis
Joule (Journal of Electrical Engineering). Vol 4, No 1: Februari 2023
Publisher : Politeknik Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61141/joule.v4i1.379

Abstract

Ditengah krisis listrik seperti saat ini konsumen juga harus turut berperan aktif membantu PLN dalam hal ini sebagai pengatur listrik di Indonesia agar tidak terjadi pemadaman bergilir dalam waktu lama karena kurangnya pasokan listrik. Oleh karena itu,  konsumen harus mengatur pemakaian listrik seoptimal mungkin. Sehingga perlu adanya suatu sistem yang dapat membantu dalam mengamati penggunaan daya listrik. Dengan demikian kami merancang sistem monitoring dan control beban yang dapat di jadwalkan. Sistem ini dapat memberikan informasi mengenai penggunaan daya dan mengendalikan beban sesuai jadwal yang telah ditentukan secara otomatis,sehingga pengunaa daya listrik bisa lebih efisien.
SISTEM ON/OFF BEBAN AC DAN MONITORING ARUS JARAK JAUH MENGGUNAKAN LORA RA-02 SX1278 Syah, Herman; Wicaksono, Muhammad Ali Akbar; Muhammad, Umar; Irvawansyah, Irvawansyah
Joule (Journal of Electrical Engineering). Vol 4, No 2: Agustus 2023
Publisher : Politeknik Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61141/joule.v4i2.452

Abstract

Sistem kontrol telah memegang peranan yang sangat penting pada suatu sistem yang dapat menghasilkan nilai tertentu sebagai keluarannya dengan mengontrol atau mengubah masukan sistem. Tujuan peneltian ini untuk memudahkan pengontrolan dan monitoring beban ac dari jarak jauh. Metode penelitian eksperimental ini menggunakan LoRa Ra-02 SX1278. Penilitian ini memperoleh 2 pengujian yaitu pengujian sensor arus  SCT 013 dan jarak transmisi LoRa. Hasil persentanse pengujia n sensor arus mendapatkan nilai persentase kesalahan 6% dan untuk jarak transmisi LoRa memperoleh hasil jarak optimal 600 meter pada kondsi malam dan 300 meter pada kondisi pagi. 
Identifikasi Permasalahan Pengoperasian PLTS Offgrid Muhammad, Umar
Joule (Journal of Electrical Engineering). Vol 4, No 1: Februari 2023
Publisher : Politeknik Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61141/joule.v4i1.440

Abstract

PLTS dengan Sistem Terpusat (Off-Grid) digunakan di daerah yang tidak terjangkau oleh jaringan distribusi PLN karena output sistem ini terhubung dengan baterai penyimpanan atau langsung ke beban sesuai kebutuhan. Pada saat pengoperasian PLTS mengalami beberapa masalah sehingga pada penelitian ini mengkaji masalah-masalah yang terjadi pada PLTS berdasarkan literatur dari penelitian sebelumnya maupun dari media-media onine. Hasil kajian menunjukkan bahwa ada 4 komponen utama penyusun PLTS yaitu panel surya, Solar Charge Controlled, baterai dan inverter dan 3 diantaranya perlu mendapat pemeriksaan rutin pada saat pengoperasian PLTS. Masalah – masalah yang selalu dipantau yaitu hot spot, kerusakan fisik dan wiring pada panel surya, kemudian penurunan tegangan secara cepat, resistansi dalam tinffi pada baterai, serta sistem grounding, pembebanan berlebih pada inverter. Pemantauan rutin pada PLTS dapat dilakukan oleh operator dan teknologi sistem monitoring.
GENETIC ALGORITHM-BASED OPTIMIZATION OF DISTRIBUTED GENERATOR PLACEMENT IN DISTRIBUTION NETWORKS TO MINIMIZE POWER LOSSES An-Nizha, Nurul; Sofyan, Sofyan; Sultan, Ahmad Rizal; Bachtiar, Muh. Imran; Muhammad, Umar; Arni, Sitti
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.v21i2.5101

Abstract

An increase in electrical energy can lead to an increase in power losses and a decrease in voltage in the system. One of the efforts made to reduce power losses that occur in the distribution network is by placing the optimal Distributed Generation (DG) in the right location. Installation of DGs with suboptimal capacity and placement location can result in greater active power losses and further reduce voltage stability. This study discusses the optimization of DG placement in the electric power distribution network using genetic algorithm methods that are known to be effective in solving complex optimization problems. The IEEE 33 bus distribution system, which is a standard system frequently employed in power flow research, was the subject of the case study. The Newton-Raphson method is a commonly used iterative method for power flow analysis due to its accuracy in calculating power flow in electrical networks. The research findings indicate that the most suitable location for two DG units with an injection power of 6,626 MW is on buses 3 and 4. The placement of this DG has the potential to substantially mitigate power losses within the distribution network. The placement of two DG units on buses 3 and 4 results in a more significant improvement in system power losses than the placement of DG units on other buses. Power losses of buses 3 and 4 experienced power losses of 67724.69 MW, while system losses were reduced by 1137621.21 MW, or 5.61 percent.
Evaluasi Degradasi dan Performa Panel Surya Multikristal di Kondisi Iklim Tropis dengan Translasi IEC 60891 Assalam, Imam Faried; Muhammad, Umar; Irvawansyah, Irvawansyah
Joule (Journal of Electrical Engineering). Vol 5, No 1: Februari 2024
Publisher : Politeknik Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61141/joule.v5i1.631

Abstract

Every year, solar panels experience a decline in production, so it is necessary to evaluate the degradation and performance of multicrystalline silicon (mc-Si) solar panels in tropical climate conditions. This research uses SEAWARD PV 200 (Complete Kit) to measure solar panel output data, which is then analyzed using the translation method according to IEC 60891 Procedure 1 to determine Standard Test Conditions (STC). The translational results showed a solar panel degradation rate of ±1.16% per year. Performance evaluation using the linear regression method revealed that a tropical climate that increases the temperature of the solar panel increases the percentage of degradation, where every 1°C increase in temperature causes an increase in degradation of approximately ±0.15%. 
ENVIRONMENTAL CONDITION MEASUREMENT SYSTEM WITH A MINI WEATHER STATION USING ESP32 Umar Muhammad; Irvawansyah; Dirham Muhammad
Jurnal Media Elektrik Vol. 21 No. 1 (2023): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v21i1.657

Abstract

Weather conditions are important to know because they have an impact on various human activities, such as agriculture, infrastructure, hydrology, and more. Several factors affect the weather, including wind speed, temperature, and air humidity. However, in this study, a mini weather station was designed to provide information not only on wind speed, temperature, and humidity but also on solar radiation. The research employed several sensors, including the DHT11, anemometer, and pyranometer. The research results indicate that the DHT11 error indoors is 1.4%, but it increases to 9% outdoors. The pyranometer shows a 3.62% error from direct solar radiation measurements. However, the wind speed sensor is still unstable, suggesting the need for improvement in future research.
Simulasi Sensor Radiasi Matahari dengan Algoritma ANFIS menggunakan MATLAB Muhammad, Umar
Joule (Journal of Electrical Engineering). Vol 5, No 2: Agustus 2024
Publisher : Politeknik Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61141/joule.v5i2.645

Abstract

Solar energy has become one of the renewable energy sources that can be converted into electrical energy. Solar cells are used to convert solar energy into electrical energy. Solar radiation is an important factor to consider in the use of solar cells or solar power generation systems. Therefore, it is necessary to develop a solar radiation measurement device. This research is a simulation of a solar cell as a solar radiation sensor using the ANFIS algorithm to calculate the solar radiation value based on the voltage and current from the solar cell. The simulation, conducted using Matlab with solar cell features, a 12-ohm resistor, ANFIS features, and a Fuzzy block, showed good results with an error rate of 0.038 percent. Future research development will involve testing on actual solar cell devices
Evaluasi Degradasi dan Performa Panel Surya Multikristal di Kondisi Iklim Tropis dengan Translasi IEC 60891 Assalam, Imam Faried; Muhammad, Umar; Irvawansyah, Irvawansyah
Joule (Journal of Electrical Engineering) Vol 5 No 1: Februari 2024
Publisher : Politeknik Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61141/joule.v5i1.631

Abstract

Every year, solar panels experience a decline in production, so it is necessary to evaluate the degradation and performance of multicrystalline silicon (mc-Si) solar panels in tropical climate conditions. This research uses SEAWARD PV 200 (Complete Kit) to measure solar panel output data, which is then analyzed using the translation method according to IEC 60891 Procedure 1 to determine Standard Test Conditions (STC). The translational results showed a solar panel degradation rate of ±1.16% per year. Performance evaluation using the linear regression method revealed that a tropical climate that increases the temperature of the solar panel increases the percentage of degradation, where every 1°C increase in temperature causes an increase in degradation of approximately ±0.15%. 
Simulasi Sensor Radiasi Matahari dengan Algoritma ANFIS menggunakan MATLAB Muhammad, Umar
Joule (Journal of Electrical Engineering) Vol 5, No 2: Agustus 2024
Publisher : Politeknik Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61141/joule.v5i2.645

Abstract

Solar energy has become one of the renewable energy sources that can be converted into electrical energy. Solar cells are used to convert solar energy into electrical energy. Solar radiation is an important factor to consider in the use of solar cells or solar power generation systems. Therefore, it is necessary to develop a solar radiation measurement device. This research is a simulation of a solar cell as a solar radiation sensor using the ANFIS algorithm to calculate the solar radiation value based on the voltage and current from the solar cell. The simulation, conducted using Matlab with solar cell features, a 12-ohm resistor, ANFIS features, and a Fuzzy block, showed good results with an error rate of 0.038 percent. Future research development will involve testing on actual solar cell devices