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Sistem Kendali Distribusi Gas Buang pada Waste Heat Recovery Power Generation untuk dikonversi menjadi Energi Terbarukan di Indarung V, PT. Semen Padang, Indonesia Nasrul Harun; Valdi Rizki Yandri
Elektron : Jurnal Ilmiah Volume 12 Nomor 1 Tahun 2020
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (584.471 KB) | DOI: 10.30630/eji.12.1.152

Abstract

The coal combustion processes which require high temperature will produce waste heat energy. The energy can be used as generator propulsion to produce electrical energy. Thus, Semen Padang Corporation has successfully got funding from the Japan government, New Energy Technology Development Organization (NEDO) to build the installation Waste Heat Recovery Power Generation (WHRPG) located in the production area of Semen Padang Corporation, Indarung V. Furthermore, heat energy process can not be operated manually, so control system is needed to control this WHPRG performance. The operational of WHPRG can produce electricity power 196.15 MW as to reduce the electric power that must be supplied by Indonesian Electricity Corporation. Besides that, the outcome of Semen Padang Corporation can be saved 33 billion Rupiah per year and CO2 emission can be declined 33,000 tons per year.
Sistem Pemberian Pakan Ayam Otomatis Berbasis Loadcell nasrul harun
Elektron : Jurnal Ilmiah Volume 11 Nomor 2 Tahun 2019
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1093.664 KB) | DOI: 10.30630/eji.11.2.116

Abstract

Proses pemberian pakan ayam saat ini masih menggunakan tenaga manusia. Pada umumnya, masyarakat menggunakan tangan untuk memberi pakan ayam maka membutuhkan waktu yang lama. Saat ini, pemberian pakan ayam secara manual kurang maksimal dikarenakan makanan ayam yang diberikan tidak merata. Untuk mengurangi dan meminimalisir hal tersebut, maka perlu dibuatnya pemberi pakan ayam otomatis berdasarkan berat dari wadah pakan, berat wadah pakan yang telah terisi dideteksi oleh sensor Loadcell, sehingga makanan ayam yang telah habis dari wadah pakan akan tetap terisi secara otomatis karna wadah pakan akan selalu terisi sesuai dengan kebutuhan makan ayam. Sensor Loadcell sebagai input yang mendeteksi berat dari wadah pakan ayam yang berkurang, sesuai dengan pengaturan Loadcell pada program. Relay pada alat ini berfungsi sebagai kendali motor power window. Motor power window pada alat ini berfungsi sebagai output penggerak wadah pakan ayam, apabila bebannya telah terisi berdasarkan pendeteksian oleh loadcell, motor power window pada alat ini bergerak secara CW (clock wise) dan motor servo bergerak secara CCW (counter clock wise). Bak pakan ayam bergerak secara otomatis secara CW dan CCW yang dikendalikan oleh motor power window dan motor servo, motor bekerja bedasarkan pendeteksian berat oleh sensor Loadcell.
PENGENDALIAN KECEPATAN MOTOR DC DENGAN METODA FUZZY LOGIC BERBASIS MIKROKONTROLLER Nasrul Harun
Elektron : Jurnal Ilmiah Vol 1 No 2 (2009): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (506.972 KB) | DOI: 10.30630/eji.1.2.15

Abstract

The Technology and information development involve production process in industries using microcontroller as a brain in control process. The number of control process with microcontroller using Fuzzy Logic method to get the function as is needed. Motors DC are used in some equipment as a driver, not only in small scale but also in huge scale. It used in low or high speed too. The way of controlled chosen depend on the function of DC motor movement. The another method is Pulse Width Modulation (PWM). This is an effective method to controlled DC motor. This method produces square pulses which have specific comparison between high pulse and low pulse. It is usual scale from 0% to 100%. In this research, both Fuzzy Logic method and Pulse Width Modulation (PWM) method base of microcontroller ATMega 8535, both are integrated to control lthe DC motor speed.
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.