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All Journal Seminar Nasional Informatika (SEMNASIF) JURNAL INTEGRASI Manutech : Jurnal Teknologi Manufaktur Journal of Applied Electrical Engineering
Didi Istardi
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering Other

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Rancang Bangun Square Wave Full-Bridge Inverter Untuk Pembangkit Listrik Tenaga Angin Mikro Didi Istardi; Agus Wirabowo
Manutech : Jurnal Teknologi Manufaktur Vol. 9 No. 01 (2017): Manutech : Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (833.715 KB) | DOI: 10.33504/manutech.v9i01.26

Abstract

The simple principle of wind power plant is use wind as main exciter to rotate the turbine. The turbine convert wind to electric energy. The output signal is alternating (AC) current. This current was changed to direct current (DC) by rectifier circuit. The DC current was used as charge the energy storage, battery. Next step, the DC current from battery convert to AC current using inverter circuit. The result of inverter shows that the error is 20% with 240V no load.
OPTIMAL POWER FLOW: MODELING AND SIMULATION, SOLUTION METHODS, AND ITS APPLICATION USING POWERWORLD SOFTWARE® Didi Istardi
Seminar Nasional Informatika (SEMNASIF) Vol 1, No 1 (2010): Computatinal
Publisher : Jurusan Teknik Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Optimal power flow has been used to solve a large class of problems in the power industry, including planning, generation dispatch, and security constrained dispatch. The OPF problem can be described as the cost of minimization of real power generation in an interconnected system where real and reactive power, transformer taps, and phase-shift angles are controllable and a wide range of inequality constraints are imposed. It is a static and a nonlinear optimization problem. In this paper, we will try to see how the OPF is modeled and simulated using powerworld software®, and what solution methods can be used to implement the models. Applications of the optimal power flow methods will also be analyzed based on this software.
Alat Pengendali Arus pada Mesin DC-400 Berbasis Mikrokontroler dan Android Didi Istardi; Muhammad Abdul Ghafur; Nugroho Pratomo Ariyanto
JURNAL INTEGRASI Vol 10 No 2 (2018): Jurnal Integrasi - Oktober 2018
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v10i2.907

Abstract

Power source is a device that serves to supply electrical current in type of welding SMAW (Shield Metal Arc Welding), an example is DC-400 machine. The output current of machine is set using a knob on the output control panel in order to generate heat as needed welding. Along with the development, welder realized that there are limitations in the way of controlling current on the machine. Distance control that requires users to go directly to the machine caused inefficiency in work. Therefore, we need a controller for adjusting the output current from long distance. It is necessary to create "Current Control Device for DC-400 Machine Based Microcontroller and Android". This device can adjust the output current value from long distance and wireless which is a microcontroller as the central controller and android as the input source. From the results of research, the greater value of R1 in potentiometer is set, the greater welding current is generated. The average error between the welding current using the knob and remote is 4.65%.
KAJIAN PROYEKSI PEMENUHAN KEBUTUHAN ENERGI PROVINSI KEPULAUAN RIAU Ihsan Saputra; Didi Istardi; Muslim Ansori; Cahyo Budi Nugroho; Abulija Maskarai
JURNAL INTEGRASI Vol 11 No 2 (2019): Jurnal Integrasi - Oktober 2019
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (424.398 KB) | DOI: 10.30871/ji.v11i2.1116

Abstract

Energi memiliki peranan penting dalam perkembangan pertumbuhan ekonomi dan pertumbuhan industri baik jangka panjang maupun jangka pendek. Dengan tingkat pertumbuhan ekonomi 5,02% dan tingkat pertumbuhan penduduk 1,79% tiap tahun di Provinsi Kepulauan Riau, perlu direncanakan dengan baik strategi pemenuhan energi. Pada penelitian ini akan dikaji tentang sumber energi dan kebutuhan energi di Provinsi Kepulauan Riau. Selain itu dilakukan pemodelan menggunakan LEAP untuk memprediksi kebutuhan energi hingga tahun 2025 di Provinsi Kepulauan Riau. Dari hasil penelitian didapat kebutuhan energi Kepulauan Riau didominasi oleh kebutuh Natural Gas sebesar 53% dari total 1,73 Mtoe pada tahun 2015 dan sektor pengguna paling besar adalah sektor rumah tangga dan industri. Selain itu dari hasil proyeksi penggunaan energi, tahun 2025 energi paling besar di konsumsi adalah Natural gas sebesar 0,98 Mtoe dari total 2,4 Mtoe dan sektor pengguna paling besar adalah sektor industri. Produksi Natural gas dan minyak bumi provinsi kepulauan riau menurun tiap tahunnya sehingga perlu dilakukan diversifikasi energi untuk pemenuhan kebutuhan energi di Provinsi Kepulauan Riau.
Uji Kinerja Membrane Sea Water Reverse Osmosis Sebelum Dan Sesudah Pemeliharaan Di PLTGU Tanjung Uncang Hasnira, Hasnira; Olfhie Stevani; Muhammad Syafei Gozali; Didi Istardi; Arif Febriansyah Juwito; Fauzun Atabiq; Fitriyanti Nakul
Journal of Applied Electrical Engineering Vol. 9 No. 1 (2025): JAEE, June 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v9i1.9462

Abstract

Sea Water Reverse Osmosis (SWRO) di PLTGU Tanjung Uncang berfungsi untuk menyuplai air baku melalui permurnian air laut menggunakan membrane. Dalam operasinya, membrane sering mengalami fouling dan scaling yang menurunkan kinerja sistem. Penelitian ini bertujuan mengevaluasi kinerja membrane SWRO sebelum dan sesudah proses pembersihan menggunakan metode Cleanig in Place (CIP) dan pembersihan manual (pembongkaran). Evaluasi dilakukan berdasarkan data conductivity dan differential pressure dalam tiga kondisi: sebelum Cleanig in Place (CIP), sesudah Cleanig in Place (CIP), dan setelah pembersihan manual. Hasil menunjukkan bahwa Cleanig in Place (CIP) efektif mengurangi fouling ringan, namun tidak cukup untuk fouling berat seperti lumpur. Sebaliknya, pembersihan manual lebih efektif dalam mengembalikan performa membrane ke batas normal (differential pressure ≤ 1,5 bar dan conductivity ≤ 600 µS/cm), meskipun membutuhkan waktu lebih lama. Dengan mengombinasikan kedua metode ini, efisiensi operasional SWRO dapat ditingkatkan secara signifikan.
Co-Authors Abulija Maskarai Agus Wirabowo Arif Febriansyah Juwito Cahyo Budi Nugroho Fauzun Atabiq Fitriyanti Nakul Hasnira Hasnira, Hasnira Ihsan Saputra Muhammad Abdul Ghafur Muhammad Syafei Gozali Muslim Ansori Nugroho Pratomo Ariyanto Olfhie Stevani