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All Journal Foristek JURNAL ILMIAH MATEMATIKA DAN TERAPAN INTEK: Jurnal Penelitian
Yusnaini Arifin
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Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Mathematics

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AUTOMATIC TRANSFER SWITCH UNTUK RUMAH TINGGAL SEDERHANA BERBASIS ARDUINO NANO Abdi Rayatman; Yusnaini Arifin; Sari Dewi; Mardiansyah Mardiansyah
Foristek Vol. 11 No. 2 (2021): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v11i2.109

Abstract

Automatic Transfer Switch (ATS) is a device that can move the main power source to a backup power source automatically and quickly when the main power source experiences a disturbance or cut-off of supply to the load. In this study, ATS was designed based on the Arduino Nano microcontroller as an automatic control that works based on voltage readings. Using the Arduino Nano microcontroller can facilitate the process of making tools and minimize the use of components. This ATS uses the PZEM-004T voltage sensor module. The voltage sensor module functions to detect and measure the value of the PLN voltage. From the test results, it was found that the time lag between the PLN supply being cut off until the generator was turned on and ready to load was an average of 2.76 seconds. Meanwhile, the time lag when the PLN supply turns on again until the generator supply is cut off and the load supply is again served by PLN is an average of 1.74 seconds. All working status of this ATS panel can be displayed on the LCD indicator, indicator light and analog voltmeter.
Coconut Water as Organic Inhibitor on Corrosion of Low Carbon Steel in 3.5% NaCl Solution Ramang Magga; Muhammad Zuchry; Yusnaini arifin
INTEK: Jurnal Penelitian Vol 7, No 2 (2020): October 2020
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v7i2.2690

Abstract

Investigating coconut water as inhibitors to protect low-carbon steel from corrosion in 3.5% NaCl has been studied by weight loss method. The weight loss of steel was identified by immersion test. The coconut water used was young and old coconut water. The concentration of coconut water, whether young and old, in 3.5% NaCl was varied. The results showed that the corrosion rate of steel decreased with increasing coconut water concentration. Furthermore, old coconut water can further reduce the rate of corrosion in mild steel comparing young coconut water.
PEMODELAN DAN PENGENDALIAN MOTOR LISTRIK U.S ELECTRIC MOTORS TYPE DRIPPROOF 1750 RPM/40 HP/240 Volt Yusnaini Arifin; Ardi Amir
JURNAL ILMIAH MATEMATIKA DAN TERAPAN Vol. 6 No. 1 (2009)
Publisher : Program Studi Matematika, Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/2540766X.2009.v6.i1.15

Abstract

Pemodelan sebuah motor DC penting dalam hal menganalisis secara teoritis karakter dari sebuah motor dc. Dimana dengan pemodelan tersebut diharapkan mampu menggambarkan karakteristik dari ‘fisik’ motor yang sebenarnya. Sebuah motor DC dapat direpresentasikan dalam beberapa jenis model, antara lain: model matematik (model nisbah alih dan ruang keadaan),dan model simulink. Dengan menggunakan spesifikasi data motor DC type Dripproof serta dilakukan pengujian diperoleh nilai n =  55,44 rad/sec  dan  = 0,3518. Karena nilai  lebih kecil dari satu, maka motor DC ini memiliki karakteristik kurang teredam (underdamped). Untuk memperoleh karakteristik kecepatan dan arus jangkar yang baik pada motor DC , dapat dilakukan pengendalian pada saat pengasutan (starting), pembebanan dan pengereman (stopping).
SIMULASI PENGENDALIAN PRIME MOVER KONVENSIONAL Yusnaini Arifin
JURNAL ILMIAH MATEMATIKA DAN TERAPAN Vol. 7 No. 2 (2010)
Publisher : Program Studi Matematika, Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/2540766X.2010.v7.i2.139

Abstract

Tulisan  ini  bertujuan  untuk  mengetahui  bagaimana  primemover  dapat  membuat  kendalian  mencapai keadaan  steady  state  kembali  setelah  adanya  gangguan/perubahan  beban.  Jenis  penelitian  ini menggunakan  simulasi  yaitu  melakukan  analisa  terhadap  respon  kendalian  denga menggunakan primemover konvensional (flyball). Simulasi dilakukan dalam waktu 0 sampai 100 detik, dengan merubah beban masing-masing 0,05 pu, 0,25 pu dan 0,5 pu. Untuk perubahan beban tersebut maka perubahan frekuensi  masing-masing  -0,0024  pu,  -0,012  pu  dan  -0,024  pu.  Sedangkan  waktu  mencapai  keadaan steady masing-masing di  detik ke 30, detik ke 33 dan detik ke 35 dari  setiap perubahan beban.  Hasil menunjukkan bahwa semakin besar beban, maka frekuensi akan semakin turun dan waktu untuk kembali ke keadaan steady akan semakin lama.
RANCANG BANGUN PANEL AUTOMATIC TRANSFER SWITCH (ATS) BERBASIS PHOTOVOLTAIC Yasir Mahaseng; Maryanto Masarrang; Yusnaini Arifin; Mustofa Mustofa; Sari Dewi
Foristek Vol. 12 No. 1 (2022): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v12i1.140

Abstract

Automatic Transfer Switch (ATS) is a device that can move the main power source to a backup power source automatically and quickly when the main power source is interrupted or the supply cuts to the load. In this study, ATS was designed based on the Arduino Nano microcontroller as an automatic control that works based on voltage readings. Using the Arduino Nano microcontroller can facilitate the process of making tools and minimize the use of components. This ATS uses the PZEM-004T voltage sensor module. The voltage sensor module functions to detect and measure the value of the PLN voltage. From the test results, it was found that the time lag between the PLN supply being cut off until the battery was supplying and ready to be loaded was an average of 2.79 seconds. Meanwhile, the time lag when the PLN supply turns on again until the battery supply is cut off and the load supply is again served by PLN is 3.07 seconds on average. Other tests found that in measuring battery resistance with a load of 20 watts, the current obtained is 1.66 amperes with a usage resistance of 27 hours, while when the load is 200 watts the current is 16.66 amperes while the resistance to use is 2.7 hours. The length of battery life is affected by the magnitude of the load.
ANALISA PENGGUNAAN ENERGI ANGIN SEBAGAI PEMBANGKIT LISTRIK ALTERNATIF DI KOTA PALU Rosanti B.; Sari Dewi; Yusnaini Arifin; Nurhani Amin; Baso Mukhlis
Foristek Vol. 13 No. 2 (2022): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v13i2.145

Abstract

Currently, the energy we use is still using fossil energy. In the future, the need for energy will increase because every year there is a large population growth. If you still use fossil energy and don’t find new energy alternatives, then Indonesia will experience a severe energy crisis and certain places will experience blackouts. One of the efforts so that the wind energy crisis can be minimized is to utilize natural energy that has the potensial to generate energy such as the Wind Power Plant. In this study, planning and simulation of Wind Power Plant were carried out to help reduce the use of fossil energy and help the needs of the community in the Talise Beach area. From the results of the study that the average output of wind turbine production is 1,180/hour winh a maximum production of wind turbines per day of 5,665 kW and the construction system cost (NPC) of Rp. 91,340,660,000. Electrical energy that can be generated from wind turbines by utilizing an area of about 42,021.67 m2 is 10,332,498 kWh/year with a total unfulfilled power of 1,416 kW/year. Lack of power or unmet load can be overcome by the existence of a grid/network.
KENDALI TORKA PREDIKTIF DENGAN PREDIKSI DUA LANGKAH MOTOR INDUKSI YANG DICATU OLEH SEBUAH INVERTER TIGA FASE Ahmad Antares Adam; Yusnaini Arifin; Baso Mukhlis; Agustinus Kali; Ratih Mar'atussolihah
Foristek Vol. 14 No. 1 (2023): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v14i1.255

Abstract

The predictive torque control (PTC) technique of electric motor drive is based on the principle that the determined optimum voltage vector will be applied to the motor in the next cycle. If a three-phase inverter is used, this inverter can only realize eight different switching states. One of the eight switching states is used as the optimum inverter switching state for the next cycle. PTC with one-step prediction cannot obtain an experimental motor speed control, because in the real-time implementation, there is a single sampling delay between input and optimal actuation due to a large number of real time calculations. The delay time problem could be solved by modifying the optimization steps by using the two-step prediction of PTC model. The experimental results show that the motor can follow the reference speed and command torque in the step response and variable speed experiments. In variable speed experiment, good speed and torque dynamics can be achieved by selecting the proportional gain value that corresponds to the motor speed
Co-Authors Abdi Rayatman Agustinus Kali Ahmad Antares Adam Ardi Amir Baso Mukhlis Mardiansyah Mardiansyah Maryanto Masarrang Muhammad Zuchry Mustofa Mustofa Nurhani Amin Ramang Magga Ratih Mar'atussolihah Rosanti B. Sari Dewi Yasir Mahaseng