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All Journal Elektron Jurnal Ilmiah Jurnal Elektro Kontrol (ELKON)
Herisajani Herisajani
Politeknik Negeri Padang
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering

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PERENCANAAN INVERTER PWM SATU FASA UNTUK PENGATURAN TEGANGAN OUTPUT PEMBANGKIT TENAGA ANGIN Herisajani Herisajani; Nasrul Harun; Dasrul Yunus
Elektron : Jurnal Ilmiah Vol 1 No 1 (2009): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (378.792 KB) | DOI: 10.30630/eji.1.1.8

Abstract

Inverter as power circuit is used to change DC to AC voltage. In general, DC which can be changed by inverter is DC voltage with constant value, for example battery or accu. Inverter is design to changed non constant DC voltage which produced by wind power generator become constant ac voltage. In changing process from non constant DC voltage to constant AC voltage is controlled by microcontroller to simplify the design of inverter.
PREDIKSI DISTORSI HARMONISA PADA UTILITY LISTRIK PERUMAHAN YANG DISEBABKAN OLEH BEBAN NONLINIER MENGGUNAKAN STATISTIK PERBANDINGAN LINIER Riza Widia; Herisajani Herisajani; Witrionanda Witrionanda
Elektron : Jurnal Ilmiah Vol 1 No 1 (2009): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (465.473 KB) | DOI: 10.30630/eji.1.1.9

Abstract

Loads of electricity utility consists of linear loads and non linear loads. The non linear loads for example TV, personal computer, VCD player, microwave and fluorescent lamp using electronics ballast. Loads with non linear characteristics become harmonic current source to electricity utility. Condition prediction used statistic linear comparison based on load power to THDi (Distortion of Harmonic Current). Measurement result using power quality analyzer and etap 4.0 (Fluke 43B) find typical THDi. The calculation and measurement result of PF and THD to loads of electricity utility show the differences less than 5%. However power factor formulation and distortions of harmonic current is valid
Merancang Panel Kontrol Untuk Pompa Air dan Motor Pengerak Solar Cell Herisajani herisajani; Nasrul nasrul; Yandrika Putra
Elektron : Jurnal Ilmiah Vol 6 No 1 (2014): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.966 KB) | DOI: 10.30630/eji.6.1.60

Abstract

At this present time increasing electrical energy requirements, and therefore found the latest energy is solar energy. Solar energy can be harnessed as a potential alternative energy source because the energy is very large as well as environmentally friendly. Tool that can be used to convert sunlight directly into electricity is called photovoltaic. On the control panel to control the water pump on the motor control circuit design life turns automatically and manually. To control the timing of the displacement of the pump used to pump two timers. On the control panel of diesel propulsion sell used four times the displacement step. Switching time between steps in the set by a timer. The control panel uses the same circuit with the motor circuit alternating rounds.
Perkiraan Tegangan Lewat Denyar Isolator Tegangan Menengah 20 kV Keramik dan Resin Epoksi berdasarkan Data Arus Bocor Valdi Rizki Yandri; Herisajani Herisajani; Fitriadi fitriadi
Elektron : Jurnal Ilmiah Volume 11 Nomor 1 Tahun 2019
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (691.442 KB) | DOI: 10.30630/eji.11.1.98

Abstract

This paper explains the research results of leakage current data and estimation of flashover voltage on ceramics and epoxy resin as 20 kV outdoor insulator in a chamber with tropical climate conditions. The waveform of leakage current (LC) was measured using a digital oscilloscope. The digital data was transferred to a personal computer using a RS-232 cable. The digital data was analyzed using Fast Fourier Transform. The result showed that LC was affected by various environment conditions like temperature, humidity and pollution. LC of ceramics insulator was higher than epoxy resin insulator in low temperature, high humidity and high pollution condition.
RANCANG BANGUN PENGATUR BEBAN OTOMATIS BERBASIS MIKROKONTROLER SEBAGAI PENSTABIL TEGANGAN PEMBANGKIT LISTRIK TENAGA MIKROHIDRO Muhammad Najmul Fadli; Herisajani Herisajani; Sirojul Hadi; Dyah Ayu Kartika Sari; Fanji Azhary Arsal
Jurnal Elektro Kontrol (ELKON) Vol. 5 No. 2 (2025): Jurnal ELKON
Publisher : Teknik Elektro Fakultas Teknik Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/elkon.v5i2.16228

Abstract

Pembangkit Listrik Tenaga Mikrohidro (PLTMH) merupakan salah satu solusi energi terbarukan yang banyak diterapkan di daerah terpencil. Namun, sistem ini memiliki kelemahan berupa fluktuasi tegangan akibat perubahan beban konsumen secara tiba-tiba. Penelitian ini bertujuan untuk merancang dan mengimplementasikan sistem pengatur beban otomatis berbasis mikrokontroler dengan kontrol Proportional Integral Derivative (PID) untuk menjaga kestabilan tegangan keluaran generator mikrohidro. Perubahan tegangan keluaran sebuah generator dipengaruhi oleh salah satu faktor yaitu pengaturan penggunaan beban. Dalam penelitian ini dibuat suatu sistem pengatur beban otomatis (ELC/Electronic Load Controller) pada generator sinkron 1 fasa untuk menjaga kestabilan tegangan generator sesuai ratingnya sebesar 220 Volt. Mengimplentasikan kontroler PID untuk menstabilkan tegangan terminal pada generator sinkron 1 fasa. Hasil pengujian menunjukkan bahwa sistem dengan kontrol PID mampu menstabilkan tegangan keluaran pada nilai 220 V ± 1%. Dibandingkan dengan sistem tanpa control ELC, selisih tegangan berkurang hingga 80%. Berdasarkan hasil tersebut, kontrol PID terbukti efektif dalam menjaga kestabilan tegangan pada PLTMH skala kecil, serta berpotensi diterapkan pada sistem pembangkit terbarukan lainnya.
Co-Authors Dasrul Yunus Dyah Ayu Kartika Sari Fanji Azhary Arsal Fitriadi fitriadi Muhammad Najmul Fadli Nasrul Nasrul Harun Riza Widia Sirojul Hadi Valdi Rizki Yandri Witrionanda Witrionanda Yandrika Putra