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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Teknika Jurnal Teknologi Elektro ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika CYCLOTRON Prosiding Seminar Nasional Sains dan Teknologi Terapan Jurnal Kreativitas PKM TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol Jurnal Intake : Jurnal Penelitian Ilmu Teknik dan Terapan Indonesian Journal of Electrical Engineering and Computer Science Jurnal JEETech Journal of Electrical Engineering and Computer (JEECOM) BEES: Bulletin of Electrical and Electronics Engineering SinarFe7 Prosiding Seminar Nasional Teknik Elektro, Sistem Informasi, dan Teknik Informatika (SNESTIK) PELS (Procedia of Engineering and Life Science) Jurnal Rekayasa elektrika Emitor: Jurnal Teknik Elektro

Titiek Suheta

Institut Teknologi Adhi Tama Surabaya

Author-ID : 2458546

Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Health Professions Mechanical Engineering Medicine & Pharmacology Nursing Public Health

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Articles

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Optimasi Output Photovoltaic Dengan Menggunakan Tracking Dinamis Berdasarkan Waktu Penyinaran Matahari Alfi Bahar; Misbahul Munir; Titiek Suheta
SinarFe7 Vol. 2 No. 1 (2019): Sinarfe7-2 2019
Publisher : FORTEI Regional VII Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (519.127 KB)

Teknologi dual axis solar panel adalah sebuah teknologi untuk menggerakkan solar panel dengan 2 poros yang telah ditentukan. Cara untuk membuat 2 poros yaitu dengan membuat perancangan mekanik yang dirancang sedemikian rupa dengan dua engsel dan dua buah motor sehingga solar panel dapat selalu menghadap ke arah pergerakan matahari. Tujuan dari pembuatan dual axis solar panel dan boost converter yaitu untuk meningkatkan optimasi dari solar panel itu sendiri. Selama ini efisiensi untuk solar panel masih sangat rendah berkisar 16% saja. Berbagai macam penelitian dan pengembangan telah dilakukan untuk mengoptimalkan kinerja dari solar panel. Dimulai dari pengembangan material hingga yang terbaru adalah pengembangan konnstruksi dari solar panel. Untuk penelitian ini digunakan metode dual axis solar panel dan boost converter. Dikarenakan posisi solar panel yang dapat secara continue menghadap posisi matahari. Dan penambahan boost converter sebagai penaik tegangan, maka dapat menghasilkan optimasi hingga 5% lebih dari pada solar panel statis dan output tegangan dapat dinaikkan hingga 24V sehingga dapat membuat pembangkit listrik tenaga surya yang lebih optimal.

Analisis Harmonisa pada Sistem Kelistrikan di Sekolah Menengah Kejuruan Negeri 5 Surabaya Nanik Sukmawati; Titiek Suheta; Mat Syai'in
Prosiding Seminar Nasional Teknik Elektro, Sistem Informasi, dan Teknik Informatika (SNESTIK) 2021: SNESTIK I
Publisher : Institut Teknologi Adhi Tama Surabaya

Sekolah Menengah Kejuruan Negeri 5 merupakan sekolah teknik yang di dalamnya banyak terdapat alat-alat praktik di setiap laboratoriumnya dan memiliki banyak beban non-linear seperti komputer, charger, perangkat elektronika daya, dan lain sebagainya. Salah satu laboratorium yang sering mengalami kerusakan, seperti perangkat CPU dan UPS adalah laboratorium komputer. Dari hasil pengukuran, didapatkan bahwa nilai harmonisa pada laboratorium komputer cukup tinggi, yaitu sebesar 90,76% yang sudah melebihi batas standar IEEE STD 519-2014, yaitu 5%. Jika nilai harmonisa dibiarkan terus-menerus, akan menimbulkan masalah pada peralatan listrik lainnya, seperti pada transformator. Yang terjadi ialah dayanya menurun dan bertambahnya losses, rusaknya peralatan listrik karena umur dari alat tersebut berkurang, dan terbakarnya kabel. Oleh karena itu, perlu dilakukan peredaman harmonisa dengan mendesain simulasi filter pasif single tuned yang dipasang pada bus laboratorium komputer sehingga dapat mengurangi nilai harmonisa yang ditimbulkan dan memenuhi standar 5%.

PERKIRAAN UMUR TRANSFORMATOR DISTRIBUSI DI EDTL CAI-COLI DILI (TIMOR-LESTE) Benedito xavier; Titiek Suheta; Nasyith Hananur R
Prosiding Seminar Nasional Teknik Elektro, Sistem Informasi, dan Teknik Informatika (SNESTIK) 2022: SNESTIK II
Publisher : Institut Teknologi Adhi Tama Surabaya

Penyebab berkurangnya umur transformator adalah pembebanan yang mengakibatkan meningkatnya temperatur pada transformator, sehingga menimbulkan panas berlebih. Hal ini akan merubah sifat konstruksi bagian-bagian dari transformator, karena pada setiap kenaikan temperatur sekitar 6°C dari batas yang diizinkan akan mengakibatkan berkurangnya umur transformator tersebut. Penelitian ini membahas pengaruh pembebanan, pengaruh suhu lingkungan terhadap sisa umur transformator tenaga di Edtl Cai-Coli Dili (Timor-Leste) dengan mengacu pada standar IEC 354 tahun 1972. Hasil penelitian pada transfromator yang berkapasitas 315 kVA diperoleh sisa umur sebesar 0,9085 jam /hari dan dalam tahun sebesar 17,85 (tahun), sedangkan untuk transformator yang berkapasitas 400 kVA diperoleh sisa umur transformator sebesar 1,6143 jam /hari dan dalam tahun sebesar 17,30 (tahun).

Optimizing the Distribution Transformer Placement Based on the Maximum Loading and Drop Voltage at PLN Tegalsari Rayon Fawzy Tio Prasetyo; Titiek Suheta
Procedia of Engineering and Life Science Vol 2 (2021): Proceedings of the 3rd Seminar Nasional Sains 2021
Publisher : Universitas Muhammadiyah Sidoarjo

One of Problems in Indonesia regarding electricity distribution is far power station from the load (consumer). As a result, the electric energy distribution often becomes ineffective due to big enough voltage drop along the transmission and distribution channels. To overcome this problem, voltage drop must be reduced by placing the distribution transformer optimally. Therefore, this research aimed at determining the new distance from the transformer obtaining voltage drop above 10% along the channel of PLN Ltd in Tegalsari Rayon. For this reason, the researcher employed maximum loading on a certain bus or Continous Power Flow (CPF) and calculated the voltage drop in each channel simulated by Matlab. The simulation results demonstrated that bus 2 gained the maximum load 7.8 times, consequently, there were 15 buses getting voltage drop more than10%. Those buses comprised: bus 6 0.9%, bus 7 11.6%, bus 8 14.3%, bus 9 14.3%, bus 10 16.1%, bus 11 16.2%, bus 12 17.9%, bus 13 17.6%, bus 14 17.5%, bus 15 17%, bus 16 17%, bus 17 16.9%, bus 18 16.8%, bus 19 16.8%, and 20 16.8%. Meanwhile, the alteration of new distances occurring in several buses included: bus 6 from 151.9 m to 138.784 m, bus 7 from 48 m to 41.184 m, bus 8 from 211 m to 146.884 m, bus 9 from 50 m to 34.734 m, bus 10 from 205.89 m to 127.842 m, bus 11 to 167.01 m, bus 12 to 316.23 m, bus 13 to 141.44 m, bus 14 to 17.9 m, bus 15 to 1141.85 m, bus 16 to 19.61 m, bus 17 to 38.13 m, bus 18 to 59.31 m, bus 19 to 13.33 m, and 20 to 19.99 m.

Implementation of 1D convolutional neural network for improvement remote photoplethysmography measurement Riza Agung Firmansyah; Yuliyanto Agung Prabowo; Titiek Suheta; Syahri Muharom
Indonesian Journal of Electrical Engineering and Computer Science Vol 29, No 3: March 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v29.i3.pp1326-1335

Remote photoplethysmography (rPPG) for non-contact heart rate measurement has been widely developed and shows good development. However, motion artifact due to changes in illumination and subject movement is still the main problem. Especially when measurements are taken in real conditions. In these conditions, it will be vulnerable to rPPG signal readings with poor signal quality. So, in this paper, it is proposed to classify the signal quality using one dimensional convolutional neural network (1D CNN). The classification is carried out based on the extraction of the temporal features of the rPPG signal that has been obtained from the plane orthogonal to skin algorithm and the magnitude of the subject's movement when measured. The classification results are entered into a compensated network if the signal obtained shows moderate quality. The compensated network will provide a more accurate estimate of hr value. The test was carried out using a dataset of 10 subjects, each measured with 3 different types of illumination. In the experiments conducted, the system's performance showed an improvement compared to the POS algorithm alone. The experiment found that the mean absolute error measurement was 2.78, and the mean error was relative at 3.67%.

Keandalan Sistem Distribusi 20KV Pada Penyulang Sistem Distribusi PT.PLN UP3 Surabaya Utara Dengan Metode Reliability Network Equivalent Approach (RNEA) Riny Sulistyowati; Ma’rifanto Nur Ramadhan; Titiek Suheta; Novian Patria Uman Putra; Nasyith Hananur Rohiem; Ilmiatul Masfufiah
Prosiding Seminar Nasional Sains dan Teknologi Terapan 2022: Energi Terbarukan dan Keberlanjutannya di Berbagai Sektor
Publisher : Institut Teknologi Adhi Tama Surabaya

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

In an electrical energy service network, the quality of reliability can be known from the frequency of blackouts and the duration of blackouts in a certain time interval. Therefore, this study aims to determine the reliability of the 20 kV distribution network power system at the Distribution System Feeder PT.PLN UP3 North Surabaya and make efforts to increase the reliability index. The method chosen in conducting this research to determine the reliability index is the Reliability Network Equivalent Approach (RNEA) method. It is used to analyze the reliability of large and complex distribution systems with an equivalent element approach. Equivalent circuits are used to replace parts of the distribution network and rearrange the distribution system into a simple series. Based on the analysis obtained from the feeder, the SAIFI reliability index value is 1,303 times/customer/year and the SAIDI reliability index value is 3,303 hours/customer/year

Analisa dan Rancang Single Tuned Passive Filter Untuk Mereduksi Harmonisa Dari Dampak Penggunaan Variable Frequency Drive (VFD) Titiek Suheta; Novian Patria Uman Putra; Safi Udin
Prosiding Seminar Nasional Sains dan Teknologi Terapan 2022: Energi Terbarukan dan Keberlanjutannya di Berbagai Sektor
Publisher : Institut Teknologi Adhi Tama Surabaya

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

Penggunaan Variable Frequency Drive (VFD) dapat menyebabkan timbulnya harmonisa dalam suatu sistem kelistrikan dan apabila diabaikan secara terus menerus akan menimbulkan masalah pada peralatan listrik seperti meningkatnya rugi-rugi pada kawat konduktor, suhu kumparan primer dan sekunder pada transformer, memperpendek masa pakai peralatan elektronik. Salah satu cara untuk mereduksi harmonisa adalah dengan melakukan pemasangan Single Tuned Passive Filter. Pada penelitian ini sebelum dilakukan pemasangan filter, nilai awal THDV pada bus 8, 9, dan 10 masing-masing bernilai 5.00 %, 5.13 %, dan 5.14 %. Namun setelah pemasangan filter yang dituning pada orde ke-5 didapatkan nilai THDV mengalami penurunan sebesar 4.11 %, 4.21 %, dan 4.22 % dan pada orde ke-7 nilai THDV sebesar 4.19 %, 4.30 %, dan 4.31 %.

Designing ANFIS Controller for MPPT on Photovoltaic System Wahyu Setyo Pambudi; Riza Agung Firmansyah; Yuliyanto Agung Prabowo; Titiek Suheta; Fathammubina Fathammubina
Jurnal Rekayasa Elektrika Vol 19, No 2 (2023)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v19i2.23394

Photovoltaics’ current and voltage output characteristics depend on the intensity of solar radiation and temperature. Maximum Power Point works with maximum energy output and has the highest efficiency. The maximum energy point tracking method (MPPT) keeps the solar cell operating point at its maximum point. This study uses the Adaptive Neuro-Fuzzy Inference System (ANFIS) method designed and used to maintain that point. The Perturb and Observe (PnO) method is used to test the results, often used in determining this tracking. Based on the test, it was found that the average power efficiency obtained was 84.79%, and using PnO was 83.87%. The transient response using ANFIS is relatively smoother than that of using PnO, which will cause chattering when there is a change in radiation and temperature.

Analisa Efisiensi Daya Solarcell dengan Integrasi Sistem Pendingin Abid, Muhammad Suryo; Pambudi, Wahyu Setyo; Suheta, Titiek; Wati, Trisna; Munir, Misbahul
BEES: Bulletin of Electrical and Electronics Engineering Vol 4 No 3 (2024): March 2024
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/bees.v4i3.4964

One of the advantages of solar cells is their ability to generate electricity without creating noise or air pollution. However, they have the disadvantage of increasing temperature due to continuous exposure to solar radiation, thereby decreasing solar cell efficiency. A solution to mitigate this effect is a cooling system for solar cells. Cooling methods for solar cells consist of active and passive methods. Active cooling methods for solar cells require power consumption, necessitating analysis and evaluation of their efficiency in practical applications. This research analyzed the power efficiency of a cooling system using a water pump, peltier, and fan. The power measurements generated by the cooled solar cell produced a power efficiency of 8.64%, compared to a solar cell without cooling. Meanwhile, the average power efficiency over six data collections was 7.82%.

Analisa Relay Jarak Pada Saluran Transmisi 150 Kv Pada Gardu Induk Sekarputih Ke Gardu Induk Balongbendo Wati, Trisna; Pambudi, Wahyu Setyo; Suheta, Titiek; Warsono, Ridho Gustianto Singgih
BEES: Bulletin of Electrical and Electronics Engineering Vol 4 No 3 (2024): March 2024
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/bees.v4i3.4967

In the electric power system it does not always run normally. There are many disturbances or disturbance anomalies that can disrupt the operation of the system. One of them is at the Sekarputih main substation. last two years, the channel has experienced five short- circuit disruptions. As a result, electromagnetic distance relays must be replaced with digital distance relays equipped with reclosers. The reclosers will function when there is a relay disturbance on a trip and automatically reconnect. The disruptions may occur due to damage brought by unstable weather conditions. Indirectly, the value of relay settings will change and deviate from the PLN (state electricity company) standards. Therefore, relay re-setting was performed using two methods: the Fuzzy Mamdhani and the ANFIS methods. Using the Fuzzy Mamdhani method, the relay distance settings were as follows: Zone 1 = 0.523 Ω, Zone 2 = 0.54 Ω, and Zone 3 = 1.58 Ω. Meanwhile, the relay distance settings by the ANFIS method were: Zone 1 = 0.432 Ω, Zone 2 = 0.65 Ω, and Zone 3 = 1.22 Ω. The previous values of relay distance settings by PLN were Zone 1 = 0.587 Ω, Zone 2 = 1.046 Ω, and Zone 3 = 1.766 Ω.

Co-Authors Aang Fras Setiawan Abd. Rasyid Syamsuri Abid, Muhammad Suryo Aditya Anggoro, Fitra Agustiawan, Saiful Ahmad Khusaeri Alfi Bahar Alfi Bahar Andy Suryowinoto Antonius Ari Kunto Ari Nugraha, Mochamad Bintang Arief Budijanto Bagus Priyo Raharjo Benedito xavier Bere, Novendra Rivaldo Bustomi, Yazid Cahyono, Nurmansyah Dwi Cahyono, Wahyu Dwi Choirul Anam AM Diponegoro Ekawati, Elfira Dyah Fahruzi, Akhmad Faisal A, Muhammad Fathammubina Fathammubina Fawzy Tio Prasetyo Firmansyah, Riza Agung Ikhwanunnadzir, Yani Ilmiatul Masfufiah INDRAWAN, MELLIANTO Koba, Nobertus Lamataro, Fadly Madani, Moh Mat Syai'in Ma’rifanto Nur Ramadhan Misbahul Munir Misbahul Munir Moh Madani Mohammad Fikri Sahbana Mohammad Rexy Hanif Mohammad Rexy Hanif Muharom, Syahri Nanik Sukmawati Nasyith Hananur R Nasyith Hananur Rohiem Novian Patria Uman Putra Odinanto, Tjahja Patria Uman Putra, Novian Pratama, Aji Indra Putra, Ilham Pratama Raharjo, Bagus Priyo Ramadhan, Alfian Riny Sulistyowati Safi Udin Soares, Celestino Surya Adi Sutopo, Krisna Syahrorini, Syamsudduha Tjahja Odinanto Trisna Wati, Trisna Uman, Novian Patria Urzhasa, Viznor Utomo, Afri Nanda Dwi Wahyu S. Pambudi Wahyu Setyawan Wahyu Setyo Pambudi Warsono, Ridho Gustianto Singgih Wicaksono, M. Rizki Wicaksono, Nur Kukuh Yuliyanto Agung Prabowo

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