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All Journal RELE: Rekayasa Elektrikal dan Energi Jurnal Teknik Elektro JISTech (Journal of Islamic Science and Technology) Jurnal Teknologi Rekayasa Jaringan Telekomunikasi (TRekRiTel) International Journal of Research in Vocational Studies (IJRVOCAS) International Journal of Economic, Technology and Social Sciences (Injects)
Juli Iriani
Politeknik Negeri Medan
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Rancang Bangun I – V Tracer Panel Surya Menggunakan Metode Faktor Pengisian Kapasitor Cholish; Rischa Devita; Juli Iriani
Teknologi Rekayasa Jaringan Telekomunikasi Vol. 1 No. 2 (2021): Oktober 2021
Publisher : P3M Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1423.129 KB)

Abstract

Perancangan peralatan instrumentasi dalam membaca nilai karakteristik arus dan tegangan dilakukan menggunakan peralatan yang disebut I-V Tracer. Pembacaan nilai pada Panel Surya secara menyeluruh sangat dipengaruhi pada kondisi lingkungan sekitar akan memperlihatkan kinerja apakah sesuai dengan datasheet yang ada. Metode yang digunakan dalam mencari data kinerja maksimal ialah dengan melakukan hubung singkat pada keluaran panel surya yang digunakan. Perekaman data yang dilakukan melalui perekaman pada sistem pengisian kapasitor pengujian berdasarkan variasi nilai kapasitor yang digunakan sehingga ditemukan ukuran komponen yang baik untuk memperlihatkan kurva karakteristik Panel Surya tersebut. Hasil akhir penelitian ini memperlihatkan Beban kapasitif dapat menampilkan bentuk kurva arus dan tegangan dengan melakukan penelusuran terhadap faktor pengisian kapasitor. Penelusuran terhadap variasi tegangan sel surya, selanjutnya dengan melakukan perhitungan terhadap arus pengisian pada kapasitor disebabkan kecilnya arus yang dihasilkan oleh sel surya. Kapasitor dengan ukuran 3300 uF dapat menampilkan bentuk kurva yang sesuai dengan simulasi pada program Psim sehingga dipilih ukuran kapasitor tersebut. Mosfet yang digunakan memberikan hasil keluaran waktu pengisian muatan kapasitor secara real time serta pembacaan dalam waktu yang cepat yakni dalam milisekon.
SISTEM PENGATURAN NILAI KEMIRINGAN PANEL SURYA DALAM PENINGKATAN KINERJA OUTPUT PANEL SURYA TERMONITORING INTERNET OF THINGS Abdullah Abdullah; Maharani Putri; Juli Iriani; Fitria Nova Hulu; Cholish Cholish; Masthura Masthura
JISTech (Journal of Islamic Science and Technology) Vol 7, No 2 (2022)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v7i2.14178

Abstract

Penggunaan panel surya banyak dimanfaatkan masyarakat karena mampu bekerja menyerap energi matahari untuk menghasilkan sumber energi listrik, akan tetapi pergerakan panel surya kearah cahaya matahari masih bersifat manual (dibantu dengan manusia). Sistem terintegrasi Internet of Things bertujuan untuk memantau kerja dari panel surya dengan cara memperlihatkan sistem monitoring jarak jauh yang memanfaatkan jaringan internet. Variabel yang dimonitoring yaitu varibel pergerakan panel surya yang terdiri dari nilai tegangan analog, intensitas cahaya matahari, nilai kemiringan, posisi dan kondisi cuaca panel surya. Pada pengujian sudut pergerakan motor pengaturan derajat kemiringan dapat diatur pada posisi maksimal cahaya matahari. Posisi maksimal didapat sebesar 125o sejalan dengan intensitas cahaya yang didapat sebesar 1680 Lux, menghasilkan tegangan rata-rata sebesar 20,22 V, arus sebesar 2,10 A dan daya sebesar 43,07 W.
Design of Earthquake Warning Alarm Using Accelerometer Sensor Based on Internet of Things Gunoro; Suprapto; Juli Iriani; Bakti Viyata Sundawa; Abdullah; Cholish
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 1 (2023): IJRVOCAS - April
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i1.194

Abstract

Earthquake is natural event due to release of energy suddenly from within that creates seismic waves. The vibrations are usually caused by movement of earth's plates. It cannot be predicted when they are coming. Therefore, need to build an early warning system. It is for anticipation of save the community when an earthquake occurs. It provides solutions to minimize the impact of earthquake events. This system uses accelerometer sensor and arduino nano as a main controller and it is accompanied by Blynk application. This works for sent notification via smartphone. This tool has been successfully designed with manual testing to be able to see the sensitivity of earthquake sensor made. Accelerometer sensor works is using Tilt Method. Accelerometer sensor will tilt on surface as parable of earthquake. Accelerometer sensor will send vibration signal when earthquake occurs. Signal processing is done by Arduino nano as the main controller in system. If the signal is received by sensor then value of earthquake will be displayed on LCD screen. Status of earthquake was separated into 4 levels such as standby, alert, dangerous, dangerous and dangerous. After earthquake value appears on the LCD screen and the status is known then buzzer will sound. It indicates that the earthquake warning alarm is properly functioning. Next, NodeMCU also sends information to Blynk application, which is used as a notification and monitoring of earthquake conditions. Buzzer will sound as a warning alarm to notify peoples to save themselves. This sensor has three output coordinate points, namely X, Y, Z, which have analog values ​​on Arduino Nano. This analog value can be converted into Richter Scale. Based on experimental results, an analog value is 100 – 400.
SISTEM PENDINGINAN PERMUKAAN PANEL SURYA DALAM OPTIMALISASI KERJA PANEL SURYA DENGAN MONITORING INTERNET OF THINGS Abdullah Abdullah; Maharani Putri; Juli Iriani; Fitria Nova Hulu; Cholish Cholish
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Publisher : RELE (Rekayasa Elektrikal dan Energi) : Jurnal Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rele.v6i1.15491

Abstract

The problem of the need for energy continues to increase, so a solution is needed in the form of alternative energy so that the problem of energy supply can be overcome. One of the solutions is through the utilization of solar energy by using solar panels with their photovoltaic properties. The problem is that solar panels must be optimized to work so that the output power can be optimal. The method in this study is the concept of a cooling system to overcome solar panels that are above their working temperature range where 1oC (starting from 25oC) will reduce the output power generated by solar panels by around 0.5% using two pumps placed on the east and west to flow water on the surface of the solar panels, so that the cooling system can move flexibly for the cooling process, where the condition of the cooling water is water that has been cooled using a combination of heatsinks and peltiers. From the test results it can be seen that the solar panel optimization system with a cooling system obtained a total solar panel output power of 140.64 Watts with an average output power of 14.06 Watts and a solar panel output power without a cooling system of 95.09 Watts with an average output power of 14.06 Watts. the average output power is 9.51 Watt with a percentage increase in the output power optimization system of 47.90% where all control and monitoring systems have worked well by integrating the Internet of Things.
Anomalies in the 110 VDC System at PT. PLN (Persero) Transmission Service Unit and Binjai Substation Gunoro; Juli Iriani; Dian Anggina Thamrin; Cholish; Abdullah
International Journal of Economic, Technology and Social Sciences (Injects) Vol. 3 No. 1 (2022): May 2022
Publisher : CERED Indonesia Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (820.022 KB) | DOI: 10.53695/injects.v3i1.631

Abstract

Anomalies in the DC system, both in the rectifier and the battery, will occur sooner or later, and the cause is equipment age, maintenance, and fault. The purpose of this study was to determine the anomaly that occurred in the 110 VDC system at PT. PLN ULTG Binjai. The research method is to observe, examine and measure the DC system. The research was carried out at the Paya Geli Substation and Pangkalan Brandan Substation. From the results of the study, it was found that the anomaly that occurred in the 110 VDC system at ULTG Binjai was the final voltage per battery cell which was less than 1 volt, namely the battery cell numbers 1, 34 and 39 in the Payageli substation 2 bank battery. DC ground occurs in bank 1 at the Paya Geli substation with the negative side connected to ground, the positive side voltage to ground is 95.2 volts, while the voltage on the negative side to ground is 8.4 volts. The main fault (phase loss) anomaly at the Pangkalan Brandan substation was due to the burning of the input line in the rectifier control module, causing the rectifier to fail and the DC supply from the rectifier to be lost and temporarily supplied by the battery. Regular maintenance is required for reliability to avoid anomalies and immediately recondition if the battery capacity is less than 60% and the final voltage per battery cell is less than 1 volt.
Co-Authors Abdullah Bakti Viyata Sundawa Cholish Dian Anggina Thamrin Fitria Nova Hulu Gunoro Maharani Putri Masthura, Masthura Rischa Devita Suprapto Widodo