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All Journal Jurnal Ilmiah Poli Rekayasa Elektron Jurnal Ilmiah JURNAL NASIONAL TEKNIK ELEKTRO Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) SIGMA TEKNIKA Andalasian International Journal of Applied Science, Engineering, and Technology Brilliance: Research of Artificial Intelligence Prosiding Seminar Nasional Sisfotek (Sistem Informasi dan Teknologi Informasi) Jurnal Andalas: Rekayasa dan Penerapan Teknologi Jurnal Abdimas: Pengabdian dan Pengembangan Masyarakat JECCOM
Zulka Hendri
Politeknik Negeri Padang
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Other

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Solar Panel Installation Engineering for Energy Conversion Optimization in Solar Power Plants Yandri, Valdi Rizki; Mayura, Yona; Wiharti, Wiwik; Hendri, Zulka; Hendri, Lenny Novi; Mufid, Ulfiah
JECCOM: International Journal of Electronics Engineering and Applied Science Vol. 2 No. 2 (2024)
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jeccom.2.2.42-49.2024

Abstract

The sunlight absorption is the main technical factor of solar power plants performance because it affects to the amount of solar energy conversion. In order to optimize this absorption, the position of solar panel should be adapted to the direction of sunlight so it can improve the economic factor of solar power plants utilization. Furthermore, in this research, we have designed and tested three serial connection solar panels with single solar tracker (SST) to optimize the absorption of sunlight and its conversion to electricity, where the electrical current from panel with SST (1.41 – 2.52 A) is higher than panel without SST (0.89 – 1.59 A). Another parameter, namely electrical power of solar power plants, is proportional to electrical current and also higher than without SST (65.2 – 102.4 W), so the stored electrical energy in battery can be also increased. The utilization of Arduino Mega 2560, driver motor BTS7960, and linear actuator can optimize the solar panel absorption and finally this control circuit addition can increase the solar energy conversion to electricity. Besides that, this control circuit will reset the position of solar panel at 6.30 pm to the starting position. It means the solar energy conversion can be maximized by using SST and this advantage can increase the efficiency and support the transition to renewable energy.
Rancang Bangun Trainer Pembangkit Lsitrik Tenaga Surya Dengan Metoda Off Grid dan On Grid Sebagai Media Perkuliahan Sistem Pembangkit Asrul, Junaidi; -, Firmansyah; Hendri, Zulka; Putri, Dinda Desti
Jurnal Ilmiah Poli Rekayasa Vol 19, No 1 (2023): Oktober
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.19.1.328

Abstract

The DIV study program is a new study program so there are several courses that require practical equipment that supports the achievement of good learning of power plant systems, the current condition of practical equipment is still lacking and there are some that do not meet practical needs, so this research will create a power plant trainer tool Solar (PLTS) which functions as a learning medium in the integrated generator laboratory in the Electrical Installation Engineering Technology DIV study program. The aim of this research is to improve students' understanding of Solar Cell Power Plants, both installation methods and the working principles of supporting components both with On Grid systems and Off Grid systems. In making this trainer, it was carried out by assembling and making a trainer stand with a welding system and the mid-trainel was made using acrylic to make it easier to assemble the main components of the PLTS system. With this trainer tool, it will be very easy for students to design PLTS systems that will be used according to the energy needs used by customers. so that the installation of PLTS is in accordance with the required requirements, and also with this tool it is able to produce students' skills in assembling and installing PLTS correctly, both with On Grid Systems and Off Grid Systems, and students are able to optimize the placement of the installation position on the Solar Panel Module so that they are able to optimize the lighting received by the solar panels is good.
Peramalan Beban Listrik Kabupaten Pesisir Selatan Dengan Analisis Regresi Hendri, Zulka; Efendi, Efendi; Asrul, Junaidi; Fitriadi, Fitriadi
Elektron : Jurnal Ilmiah Volume 15 Nomor 1 Tahun 2023
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.15.1.340

Abstract

The more electric vehicles emerge, the more electricity demand will increase in each region. This will encourage electricity providers to increase the number or capacity of generators. The construction of a new power plant requires load forecasting to determine how much capacity the plant will build. This study aims to predict the electrical load in Pesisir Selatan, West Sumatra until 2031 using linear regression analysis and time series. Forecasting is done on each sector of PLN customers. Forecasting is done based on the PLN customer sector. The forecasting sectors are the household, business, social and government sectors. The four test criteria were carried out are namely the coefficient of determination test (R2), the F test, the T test and the mean absolute percentage error (MAPE). The forecasting results show that in 2031 the electricity load for the household sector is 120.1 MW, the business sector is 5.7 MW, the social sector is 56.9 MW and the government is 9.5 MW.
Reduksi Harmonisa Pada Saluran Distribusi Tenaga Listrik Dengan Filter Daya Aktif ., Fitriadi; Hamid, M. Imran; Herisanjani, Herisanjani; Firmansyah, Firmansyah; Hendri, Zulka
Elektron : Jurnal Ilmiah Volume 15 Nomor 1 Tahun 2023
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.15.1.350

Abstract

The large use of power converters in distribution lines causes poor power quality such as high produces harmonics in an electric power system that arises due to the operation of non-linear electrical equipment. The presence of harmonics in the power system distribution results in a very large loss in the system. In this paper had been done a simulation of power quality improvement through harmonic reduction using parallel active power filter. Active power filters work with control techniques based on the concept of instantaneous power to determine the amount of compensation currents that must be generated by the power compensator power circuit. The compensating current references generated by the control circuit are used by the hysteresis type controller to provide harmonic compensation arising. From the result of simulation using Simulink MATLAB, the harmonic value (THD) decrease caused by the 3 phase rectifier load on a distribution network which is used as case example. The harmonic value before compensated on the network is 27.85% at each phase, while after computing the harmonic value of the network decreases to 1,43% in R phase, 1,49% in S phase, and 1,34% in T phase.
The Impact of Load Variations on The 300 W Pico-hydro Power Plants Parameters (Voltage, Current, Frequency and Generator Speed) Hendri, Zulka; Seftiani, Yudia Meka; Abadi, Akbar; Wiharti, Wiwik; Herisajani, Herisajani; Yandri, Valdi Rizki; Haryadi, Yuda; Mayura, Yona
Andalasian International Journal of Applied Science, Engineering and Technology Vol. 5 No. 2 (2025): July 2025
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijaset.v5i02.249

Abstract

This research examines how load variations affect the performance of a pico-hydro power system, specifically focusing on voltage, current, frequency, and generator speed. Experiments were carried out through direct measurement under different load conditions. The findings reveal that as the load increases, the output voltage decreases due to higher circuit resistance, while the output current rises significantly. The generator frequency remains relatively stable under light loads but starts to fluctuate near full capacity, indicating the need for improved regulation. Similarly, the generator’s rotational speed declines with higher loads, signaling a performance limit. These results highlight the critical relationship between load changes and system performance, providing valuable insights to enhance the efficiency and stability of pico-hydro systems, especially for renewable energy applications in remote areas.
Design of a Microcontroller-Based Corn Dryer Wiharti, Wiwik; Hendri, Zulka; Mayura, Yona; Rimra, Ihsan Lumasa; Razikin, Ikhwan
Brilliance: Research of Artificial Intelligence Vol. 3 No. 2 (2023): Brilliance: Research of Artificial Intelligence, Article Research November 2023
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/brilliance.v3i2.3057

Abstract

Maize drying is a crucial procedure in the agricultural and food industries, aimed at decreasing the moisture content of maize kernels to prolong their shelf life, inhibit microbial growth and maintain their quality. Two common methods for drying corn include natural techniques, which involve drying the maize in the sun, and artificial techniques, where specialized equipment such as hot air dryers, drum dryers and microwaves are employed. The author constructed a corn dryer utilizing Arduino. This device employs heat elements and fans to expedite the corn drying process. The tool can significantly quicken the corn drying process. The author utilises a DHT22 sensor to gauge temperature and humidity levels of the corn. The device is capable of generating temperatures ranging from 20?C to 90?C, thanks to the assistance of the DHT22 sensor during the drying process.
ALAT MONITORING PENGUKURAN TEKANAN DARAH PORTABLE DENGAN OUTPUT SUARA BERBASIS IoT Aditya Wardhani; Tisa Anggraini; Yultrisna Yultrisna; Zulka Hendri; Reza Nandika
SIGMA TEKNIKA Vol 6, No 2 (2023): SIGMATEKNIKA, VOL. 6, N0. 2, November 2023
Publisher : Fakultas Teknik, Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/sigmateknika.v6i2.5676

Abstract

Telah dilakukan pembuatan alat monitoring pengukuran tekanan darah portable dengan output suara berbasis IoT yang didasarkan perawatan pasien dengan pendekatan berorientasi pasien. Dalam pendekatan ini pasien dilengkapi dengan pengetahuan dan informasi untuk lebih aktif dalam mendiagnosa penyakit dan melakukan tindakan pencegahan salah satunya pengukuran tekanan darah. Sasaran penelitian ini, yaitu (a) membuat sebuah prototipe sistem monitoring pengukuran tekanan darah portable dengan output suara berbasis IoT berbasis IoT, (b) mengukur kinerja sistem. Metode penelitian dimulai dari pembuatan prototipe, dan pengukuran kinerja sistem. Hasil pengukuran kinerja sistem, rata-rata erorr pada pembacaan nilai tekanan darah sebesar 2,49% untuk pembacaan tekanan darah sistolik dan 2,79% untuk pembacaan tekanan darah diastolic. Nilai erorr tersebut diperoleh dari 30 orang responden. Sistem dapat untuk pemantauan pembacaan data dari sensor MPX5050DP dengan penggunaan NodeMCU ESP8266 pada web server Thinkspeak melalui layar smartphone. Secara keseluruhan alat dapat berfungsi dengan baik.
Co-Authors ., Erliwati ., Fitriadi ., Khairullah Aditya Wardhani Agus Rahmad Timor Akbar Abadi Akbar Abadi Akbar Abadi, Akbar Aldi Rahman Ariadi Hazmi Asrul, Junaidi Deddy Prayama EFENDI Efendi Efendi Erliwati . Fibriyanti Fibriyanti Fibriyanti Firmansyah - Firmansyah Firmansyah Fitriadi Fitriadi Hamid, M. Imran Hanalde Andre Haryadi, Yuda Hendri, Lenny Novi Herisajani Herisajani Herisanjani, Herisanjani Hidra Amnur Ihsan Lumasa Rimra Ikhsan Yusda Prima Putra Ismail Ismail Kananda, Kiki Khairullah . Kiki Kananda Lilimiwirdi Lilimiwirdi Mayura, Yona Mufid, Ulfiah Novadilastri Putri, Dinda Desti Razikin, Ikhwan Reza Nandika Riza Widia Seftiani, Yudia Meka Timor, Agus Rahmad Tisa Anggraini Valdi Rizki Yandri Variyetmi Wira Witri Handayani Wiwik Wiharti Yefriadi Yefriadi Yenida Yenida Yona Mayura Yuhefizar Yuhefizar Yultrisna Yultrisna Zas Ressy Aidha