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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Kitektro JURNAL NASIONAL TEKNIK ELEKTRO Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Inotera Jurnal Nasional Komputasi dan Teknologi Informasi Dielektrika : Jurnal Ilmiah Kajian Teori dan Aplikasi Teknik Elektro Indonesian Journal of Electrical Engineering and Computer Science Journal of Renewable Energy, Electrical, and Computer Engineering Jurnal Rekayasa elektrika Proceeding of International Conference on Information Science and Technology Innovation (ICoSTEC) kawanad jes Jurnal Polimesin Jurnal Solusi Masyarakat Dikara Jurnal Pengabdian Rekayasa dan Wirausaha

Ira Devi Sara

Department Of Electrical And Computer Engineering, Syiah Kuala University, Banda Aceh

Author-ID : 2756767

Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering 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 Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Neuroscience Social Sciences Transportation Other

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PERHITUNGAN KORONA, AUDIBLE NOISE DAN RADIO INTERFERENCE AKIBAT CUACA BURUK PADA SALURAN TRANSMISI 275 KV MEDAN-BANDA ACEH Andri, Andri; Lubis, Rakhmad Syafutra; Sara, Ira Devi
Jurnal Komputer, Informasi Teknologi, dan Elektro Vol 2, No 4 (2017)
Publisher : Universitas Syiah Kuala

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

Saat proses transmisi energi listrik berlangsung maka akan terjadi losses atau rugi-rugi daya sehingga mengalami drop tegangan. Penggunaan saluran transmisi tegangan ekstra tinggi (SUTET) merupakan salah satu solusi untuk mengatasi masalah tersebut. Namun hal tersebut mengakibatkan timbulnya peristiwa korona. Korona dapat menimbulkan rugi-rugi korona serta gangguan terhadap lingkungan sekitar seperti timbulnya audible noise (suara bising) serta radio interference (interferensi gelombang radio). Untuk itu dalam perencanaan pembangunan jaringan SUTET diperlukan analisa tingkat rugi-rugi korona, audible noise dan radio interference yang akan terjadi pada saat level tegangan dinaikkan dari 150 kV menjadi 275 kV. Besar rugi-rugi korona saat cuaca baik terbesar terjadi pada saluran Nagan Raya-Sigli sebesar 29,8669 kW sedangkan yang terkecil terjadi pada saluran Lhokseumawe-Arun sebesar 3,004 kW. Untuk besar rugi-rugi korona saat cuaca buruk terbesar terjadi pada saluran Nagan Raya-Sigli sebesar 82,9637 kW sedangkan yang terkecil terjadi pada saluran Lhokseumawe-Arun sebesar 8,3443 kW. Besar audible noise yang dihasilkan 45,35 dB dimana termasuk dalam skala tingkat rendah menurut Kriteria Perry. Sedangkan radio interference yang dihasilkan 52,77 dB, namun hasil tersebut hanya berpengaruh pada gelombang AM.

Implementasi Sistem Cerdas Pada Gedung Workshop Otomasi Industri Balai Latihan Kerja Banda Aceh sebagai Solusi dalam Penghematan Energi Listrik Yusuf, Muhammad; Sara, Ira Devi
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 2: July 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

The increase in electricity consumption does not only occur in the industrial and household sectors but also in the government office sector. The government through the Minister of Energy and Mineral Resources regulation No. 13 of 2012 demands savings in electricity usage. Balai Latihan Kerja Industri Banda Aceh is a building managed by considering the efficiency of electricity. In this research, a smart system that can control the use of equipment is designed to be able to streamline usage costs. System was controlled using a Programmable Logic Control (PLC). Input for the system are a PIR sensor, a smoke detector, a water level sensor, a photocell sensor, switch, emergency button, door lock, and window sensor. The controlled equipment consists of four air conditioners, fifteen lights, a water pump, main door lock, alarm, and telephone. The system is controlled by on/off method, PLC analyzes the input signal and then adjusts the output state according to the conditions specified based on the control program. The results shows that this system succeeded in controlling equipment efficiently. Management can reduce the electricity accounts by Rp. 11.398.962,- in a year. The payback period is less seven months. The implementation of a smart system in Balai Latihan Kerja Industri Banda Aceh for electricity efficiency can support government programs for energy sustainability.Keywords : Electric power, smart systems, PLC,efficiencyÂ AbstrakPeningkatan konsumsi energi listrik bukan hanya terjadi di sektor industri dan rumah tangga tetapi juga terjadi di sektor perkantoran pemerintah. Pemerintah melalui peraturan Menteri ESDM No. 13 tahun 2012 menuntut penghematan pemakaian energi listrik. Balai Latihan Kerja Industri Banda Aceh merupakan salah satu gedung yang memperhatikan penghematan energi listrik tersebut. Pada penelitian ini dirancang sebuah sistem cerdas yang dapat mengendalikan penggunaan peralatan listrik untuk dapat mengefesienkan biaya penggunaan. Pengendalian dilakukan menggunakan programmable logic controller (PLC). Masukan dari sistem adalah sensor PIR, sensor asap, sensor ketinggian air, sensor fotocell, saklar, tombol darurat, tombol buka pintu utama dan sensor jendela. Peralatan yang dikendalikan terdiri dari empat pendingin ruangan, lima belas lampu, satu pompa air, kunci pintu utama, alarm dan telepon. Peralatan dikendalikan dengan metode on/off dimana PLC menganalisa sinyal input kemudian mengatur keadaan output sesuai dengan kondisi yang telah ditentukan berdasarkan kontrol program sistem cerdas yang telah deprogram pada PLC. Sistem telah berhasil mengendalikan peralatan secara efisien sehingga diperoleh penghematan penggunaan energy listrik. Balai Latihan Kerja Banda Aceh dapat menekan penghematan pembayaran rekening pemakaian energi listrik sebesar Rp. 11.398.962,-. Berdasarkan biaya yang dikeluarkan untuk membuat sistem dan efisiensi yang dihasilkan, maka modal dapat dikembalikan dalam rentang waktu kurang dari tujuh bulan. Dengan diimplementasikan sistem cerdas penghematan pemakaian energi listrik yang dicanangkan dalam peraturan pemerintah dapat direalisasikan.Kata Kunci : Sistem cerdas, PLC dan Penghematan

Microcontroller based dual energy Moringa leaf dryer design and development Saifuddin Muhammad Jalil; Husaini Husaini; Rizal Munadi; Ira Devi Sara
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 13, No 2: June 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v13.i2.pp1075-1081

This paper presents the design and development of an automatic dual energy solar powered Moringa dryer used to remove moisture. Moringa leaves are circulated by hot air evenly in a cylindrical mesh of aluminum mesh which rotates at 20 revolutions per minute through which hot air is passed to extract moisture from the leaves. The Arduino Uno or Atmega32 microcontroller works in conjunction with appropriate sensors to monitor and control humidity, moisture content, motor speed, room temperature, heater, and fan. Based on the moisture content in the Moringa leaves, the sensor sends a control signal to the controller. The results showed a good response in removing the initial moisture content from 18.5% to the final moisture content to 4% of green leaves without changing the nutritional value. Qualitative analysis showed that traditional drying, namely open drying, drying Moringa leaves each for 3 days in 12 hours with a final moisture content of 7%, while double solar drying only takes 3 days in 12 hours with a final moisture content of 4%, and produce better quality Moringa leaves. High efficiency in the drying process of Moringa leaves compared to traditional drying, where this tool can dry Moringa leaves faster by 3%.

Perancangan Alat Pencatat Data Kurva Karakteristik Arus dan Tegangan (I-V) Modul Surya Cholis Cholis; Ira Devi Sara; Yuwaldi Away
CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Vol 2, No 1 (2016)
Publisher : PTE FTK UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/crc.v2i1.762

Untuk menampilkan kurva karakteristik I-V diperlukan sebuah peralatan dalam menelusuri keluaran sebuah modul surya yang disebut IV Tracer. IV Tracer bekerja berdasarkan nilai tegangan kerja yang divariasikan terhadap sebuah modul surya mulai dari titik nol sampai nilai tegangan rangkaian terbuka (open circuit). Berdasarkan hasil percobaan menggunakan rangkaian snubber dengan nilai kapasitor 47 uF, tahanan 5 â„¦ dan dioda FR207 memperlihatkan bentuk kurva arus dan tegangan yang sesuai datasheet dengan selisih rata-rata sebesar 8,89 % berdasarkan parameter nilai modul surya yang diuji. Data yang diperoleh merupakan nilai variasi tegangan saat switching MOSFET IRF540 selama 1600 milisekon dengan mengumpulkan sebanyak 52 titik pengujian. IV tracer yang dirancang memiliki batasan sebesar 200 mA - 8V berdasarkan pengaturan yang dilakukan pada layar TFT 1,8â€. Kata kunci:

Implementasi Sistem Cerdas Pada Gedung Workshop Otomasi Industri Balai Latihan Kerja Banda Aceh sebagai Solusi dalam Penghematan Energi Listrik Muhammad Yusuf; Ira Devi Sara
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 2: July 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

The increase in electricity consumption does not only occur in the industrial and household sectors but also in the government office sector. The government through the Minister of Energy and Mineral Resources regulation No. 13 of 2012 demands savings in electricity usage. Balai Latihan Kerja Industri Banda Aceh is a building managed by considering the efficiency of electricity. In this research, a smart system that can control the use of equipment is designed to be able to streamline usage costs. System was controlled using a Programmable Logic Control (PLC). Input for the system are a PIR sensor, a smoke detector, a water level sensor, a photocell sensor, switch, emergency button, door lock, and window sensor. The controlled equipment consists of four air conditioners, fifteen lights, a water pump, main door lock, alarm, and telephone. The system is controlled by on/off method, PLC analyzes the input signal and then adjusts the output state according to the conditions specified based on the control program. The results shows that this system succeeded in controlling equipment efficiently. Management can reduce the electricity accounts by Rp. 11.398.962,- in a year. The payback period is less seven months. The implementation of a smart system in Balai Latihan Kerja Industri Banda Aceh for electricity efficiency can support government programs for energy sustainability.Keywords : Electric power, smart systems, PLC,efficiency AbstrakPeningkatan konsumsi energi listrik bukan hanya terjadi di sektor industri dan rumah tangga tetapi juga terjadi di sektor perkantoran pemerintah. Pemerintah melalui peraturan Menteri ESDM No. 13 tahun 2012 menuntut penghematan pemakaian energi listrik. Balai Latihan Kerja Industri Banda Aceh merupakan salah satu gedung yang memperhatikan penghematan energi listrik tersebut. Pada penelitian ini dirancang sebuah sistem cerdas yang dapat mengendalikan penggunaan peralatan listrik untuk dapat mengefesienkan biaya penggunaan. Pengendalian dilakukan menggunakan programmable logic controller (PLC). Masukan dari sistem adalah sensor PIR, sensor asap, sensor ketinggian air, sensor fotocell, saklar, tombol darurat, tombol buka pintu utama dan sensor jendela. Peralatan yang dikendalikan terdiri dari empat pendingin ruangan, lima belas lampu, satu pompa air, kunci pintu utama, alarm dan telepon. Peralatan dikendalikan dengan metode on/off dimana PLC menganalisa sinyal input kemudian mengatur keadaan output sesuai dengan kondisi yang telah ditentukan berdasarkan kontrol program sistem cerdas yang telah deprogram pada PLC. Sistem telah berhasil mengendalikan peralatan secara efisien sehingga diperoleh penghematan penggunaan energy listrik. Balai Latihan Kerja Banda Aceh dapat menekan penghematan pembayaran rekening pemakaian energi listrik sebesar Rp. 11.398.962,-. Berdasarkan biaya yang dikeluarkan untuk membuat sistem dan efisiensi yang dihasilkan, maka modal dapat dikembalikan dalam rentang waktu kurang dari tujuh bulan. Dengan diimplementasikan sistem cerdas penghematan pemakaian energi listrik yang dicanangkan dalam peraturan pemerintah dapat direalisasikan.Kata Kunci : Sistem cerdas, PLC dan Penghematan

Design and Analysis of Home Automation Systems Based on MAC Address Muhammad Aden Fahadi; Yuwaldi Away; Ira Devi Sara
Jurnal Inotera Vol. 5 No. 1 (2020): January-June 2020
Publisher : LPPM Politeknik Aceh Selatan

Home Automation is one of the advances in technology and communication by automating the control of electrical devices at home. With this method, home electronic devices can be controlled using a remote control system without having to touch the home appliances themselves. Along with the development of the operating system on mobile devices gives birth to innovation and creativity that is in line with the needs of its users, from mere communication tools to information centers. One of the innovations in the field of daily life of its users is Home Automation which allows control of electrical devices so that it can save electricity consumption at home that can be done remotely both in the same location or in other rooms with sensors and user interface design from Android to simplify monitoring. The Home Automation application communicates via MAC addresses on Android registered in Wemos D1, which Android can be used to control automatically, in this study using the Wemos D1 module as a brain or control center that will receive data from Android for later processing to the lamp output , motion sensor (PIR), DHT22 sensor, fan, and door lock by using a solenoid that can be controlled automatically from any sensors connected to the Wemos D1 microcontroller.

Studi Simulasi Aerodinamika Airfoil dan Prediksi Performa Picth Tetap Turbin Angin Poros Tegak (Darrieus) terhadap Output Power untuk Aplikasi Kecepatan Angin Rendah Wahyu Priyanto; Ira Devi Sara; Rakhmad Syafutra Lubis
Jurnal Nasional Komputasi dan Teknologi Informasi (JNKTI) Vol 2, No 1 (2019): APRIL 2019
Publisher : Program Studi Teknik Informatika, Fakultas Teknik. Universitas Serambi Mekkah

Turbin angin sumbu vertikal adalah turbin angin yang sangat efektif di terapkan ada wilayah perkotaan. Integrasi dengan infrastuktur bangunan kota, turbin angin ini sangat memungkinkan untuk bersinergi, serta memiliki respon yang lebih baik dalam turbulensi aliran yang umum di wilayah perkotaan. Artikel ini memberikan kontribusi untuk pengembangan aerodinamis rotor turbin dalam mempelajari turbin angin sumbu vertikal, dengan metode Double Multiple Stream Tube (DMS). Metode DMS ini menggunakan software Qblade untuk mengembangkan serta memprediksi picth yang digunakan secara tetap pada turbin angin vertikal sekala kecil di Banda Aceh dengan koordinat latitude 5.58° longitude 95.37°.Pengembangan mengunakan NACA airfoil 4418 konvensional dan 4418 yang telah di modifikasi bagian trillingnya, telah terbukti dapat meningkatkan nilai koefisien daya (Cp) yang mampu bekerja pada tip speed rasio yang rendah serta lebih efesien dalam pengunaan turbin angin jenis Darrieus poros tegak,dengan mengubah serta menghilangkan pada bagian trilling 10° terbukti mampu meningkatkan nilai koefisien daya (Cp) 26% dengan nilai puncak 43% dari sebelumnya (bentuk airfoil konvensional) dengan nilai Cp 19% dengan nilai puncak 37% yang mampu bekerja pada rasio tip yang relatif rendah dengan nilai TSR 1.9 dengan meningkatnya nilai Cp maka efesiensi maksimum dapat didekati.Dengan menggunakan airfoil ini untuk lebih mengutamakan gaya lift sebagai kelebihannya, yang mampu bekerja pada kecepatan angin yang relativ rendah.

Virtual inertia support for wind turbine system Nor Shahida Hasan; Norzanah Rosmin; Nor Julia Mohd Nordin; Aede Hatib Mustaamal; Siti Maherah Husin; Aripriharta Aripriharta; Ira Devi Sara
Indonesian Journal of Electrical Engineering and Computer Science Vol 17, No 2: February 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v17.i2.pp629-636

Previously, a conventional synchronous generator is adapted into the wind energy conversion system to supply the required inertial support; however its slow behaviour may worsening the stability problem of the system during frequency event. In this paper, a new approach that enables virtual inertial support from supercapacitor during sudden load increase e.g. when wind turbine experiencing sudden wind or load changes is presented. Here, a new approach that can regulate the system frequency by controlling the charging and discharging process of supercapacitor is demonstrated. Hence, an algorithm on how to derive the behavior of supercapacitor and power converter is presented. From the simulation results, it has been found that this proposed approach successfully reduces the frequency nadir and ROCOF of the system frequency. It also able to avoid the second frequency dips during frequency recovery time.

Simulasi Pelacakan Titik Daya Maksimum Modul Surya dengan Metode Grey Wolf Optimization Rizki Faulianur; Ira Devi Sara; Fitri Arnia
Jurnal Rekayasa Elektrika Vol 14, No 1 (2018)
Publisher : Universitas Syiah Kuala

The photovoltaic module has a nonlinear current and voltage characteristic curve where there is a maximum power point to be tracked to avoid wasted energy. Some methods for tracking the maximum power points have been developed such as perturb and observe (P O), Incremental Conductance (IC), and Hill Climbing (HC). However, those methods were not so accurate to find the maximum power point and they were also slow to respond the changes in solar radiation and temperature. To overcome the shortcomings of the method, a new optimization approach was developed. This method is called Gray Wolf Optimization (GWO). It work based on the wolf behavior in capturing the prey. In this study, it will be determined to what extent the GWO method can track the maximum working point of solar modules that undergo changes in radiation and working temperature quickly and accurately. This research was conducted by simulation using Matlab/Simulink by comparing the extract of power GWO method with its power characteristics. The results obtained by the GWO method trace maximum power with an average accuracy rate of 99.14 % with time less than 0.1 second. From this data, it can be concluded that the GWO method successfully responds well and accurately to changes in radiation and temperature.

Performa Konfigurasi Modul Surya Seri dan Seri Paralel pada Kondisi Mismatch Karakteristik Arus-Tegangan (I-V) terhadap Daya Output Nurlaila Amna; Ira Devi Sara; Tarmizi Tarmizi
Jurnal Rekayasa Elektrika Vol 17, No 4 (2021)
Publisher : Universitas Syiah Kuala

The installation of a Solar Power System (PLTS) within the ideal conditions still uses the type of solar module with the same current and voltage characteristics. However, these ideal conditions can be different if the commonly used modules are no longer available on the market. Once there is damage or interference in the operating system, such as cracks in the module plate, it will take a significantly long time to replace. This particular condition can obstruct electrical power distribution to its intended loads in the other end. Therefore, creating a robust solar panel system that operates at its maximum capacity requires an alternative or approach to find such a similar module replacement. It is expected that the replacement module will have the I-V characteristics, which relatively resemble that of the earlier module and can help to maintain the energy availability of the solar panel system. This study aims to analyze which factors affect the characteristic irregularity of currents and voltages in a solar panel installation towards the output of a solar panel under certain conditions. The solar panel system is designed using 20 solar modules with each capacity is 250 WP power that is simulated with Simulink. The method creates the mismatch condition of the current and voltage on the solar module in a specific panel configuration. These mismatch conditions are created by combining solar modules with different currents and voltages in the Series (S) and Series-Parallel (SP) configurations. The simulation is carried out by replacing the main solar module with a 5% to 100% replacement solar module. The selection of the replacement module is based on Isc, which is close to the same because the current flowing in the series circuit is the same. The simulation results showed that the solar panel system still functioned properly and produced maximum power under mismatch conditions. Of all three configurations with mismatch conditions, it is found that the best performing configuration works with the Series-Parallel (SP) configuration of the STC conditions. The maximum power which can be sustained with Series-Parallel (SP) configuration reaches up to 40% of the original modules.

Co-Authors . Roslidar Aede Hatib Mustaamal Ahmad Syuhada Akhyar Amir Zaki Mubarak Andri Andri Aqsa SH, Aidil Arianto, Sofyan Aripriharta - Arnawan Hasibuan Asran Asran Asri Asri Asri Cholis Cholis Effendi Effendi Ezwarsyah Ezwarsyah Fikrel Jasman Fitri Arnia Gunawan, Doni Hafidh Hafidh Hari Anna Lastya Husaini Husaini Jalil, Asri Muhammad Lisman Lisman Lubis, Rakhmad Syafutra M Ikhsan M. Nizar Machmud Mahdi Syukri Masri Masri Maulana, Edi Muamar Kadafi, Muamar Muhammad Aden Fahadi Muhammad Irhamsyah Muhammad Rizal Fachri Muhammad Yusuf Muhibbuddin Nasaruddin Nasaruddin Nikmal Maula Mirda Nor Julia Mohd Nordin Nor Shahida Hasan Norzanah Rosmin Novandri, Andri Nurlaila Amna Nurmuthaharah, Cut Nurul Malahayati Rachmad Ikhsan Rakhmad Syafutra Lubis Rakhmad Syafutra Lubis Rakhmad Syafutra Lubis Ramdhan Halid Siregar Rizal Munadi Rizki Faulianur Saddam Azmi Saifuddin Muhammad Jalil Saiful Siti Maherah Husin Suhaeri Suriadi Suriadi Syahrizal Syukriyadin Syukriyadin, Syukriyadin T. Edisah Putra Tarmizi Tarmizi Tarmizi Tarmizi Tarmizi Tarmizi Tarmizi Tarmizi Ulya Zikra Umurani, Khairul Wahyu Priyanto Yusuf, Muhammad Yuwaldi Away Yuwaldi Away Yuwaldi Away Yuwaldi Away Yuwaldi Away Zainuddin

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