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All Journal QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal SOLMA Lectura : Jurnal Pendidikan Jurnal Teknik Elektro dan Komputer TRIAC Jurnal Abdi: Media Pengabdian Kepada Masyarakat ELECTRA : Electrical Engineering Articles Go-Integratif : Jurnal Teknik Sistem dan Industri Jurnal Pengabdian Pada Masyarakat METHABDI
Irna Tri Yuniahastuti
Jurusan Teknik Elektro FT Unesa
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology 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 Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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Perhitungan Keandalan Pembangkit Loss of Load Probability (LOLP) untuk N unit Pembangkit Putra, Reza Aditya; Yuniahastuti, Irna Tri
ELECTRA : Electrical Engineering Articles Vol. 1 No. 2 (2021)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/electra.v1i2.8960

Abstract

Perhitungan keandalan sistem tenaga listrik dapat dianalisis dari seberapa sering suatu sistem mengalami gangguan/seberapa sering listrik padam. Data hasil gangguan suatu sistem dapat dihitung menggunakan rumus LOLP (Loss of Load Probability). Semakin kecil nilai LOLP berarti suatu sistem semakin sedikit peluang mengalami gangguan dan investasi yang diperlukan untuk mendukung juga akan semakin besar. PLN mematok nilai risk level LOLP satu hari per tahun. Untuk perhitungan LOLP dapat dihitung dengan cara manual ataupun dengan program  bantuan. Pada penelitian ini akan diusulkan program perhitungan menggunakan Matlab, dan  dilakukan perbandingan hasil perhitungan dan waktu operasi sistem dengan menggunakan Mic Excell dan program Matlab. Hasil perhitungan LOLP dengan Excell dan Matlab mempuyai deviasi dibawah 1%. Sehingga program yang diusulkan dinyatakan valid. Sedangkan waktu untuk memproses dengan Mic Excell dan Matlab didapatkan hasil yang sangat kontras. Hal ini disebabkan karena dengan penambahan unit pembangkit Mic Excell harus menghitung nilai LDC setiap penambahan pembangkit hal ini menyebabkan proses di excell membuat waktu lebih lama. Sedangkan waktu proses perhitungan dengan menggunakan Matlab didapatkan waktu yang lebih singkat dan input yang lebih sederhana. 
Perhitungan Keandalan Sistem Distribusi 20 kV Menggunakan Metode SAIDI dan SAIFI di PT. PLN (Persero) ULP Maospati Zaki, Ahmad; Yuniahastuti, Irna Tri; Sunaryantiningsih, Ina
ELECTRA : Electrical Engineering Articles Vol. 2 No. 2 (2022)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/electra.v2i2.12253

Abstract

Sistem distribusi memiliki peran yang sangat besar dalam memberikan jaminan serta kualitas penyaluran energi listrik, sehingga dapat memenuhi standart baik secara teknis maupun non teknis pada konsumen. Untuk melakukan perhitungan keandalan sistem pembangkit listrik salah satunya dengan menggunakan metode SAIDI dan SAIFI. Berdasarkan hasil perhitungan, nilai SAIDI pada masing – masing penyulang di ULP Maospati dengan nilai 2,018480854 jam/pelanggan/tahun. Nilai SAIFI pada masing – masing penyulang di ULP dengan nilai 5,233709981 kali/pelanggan/tahun. Perhitungan nilai CAIDI, nilai tertinggi pada penyulang Tegalarum dengan nilai 0,914285714 jam/tahun serta nilai terendah pada penyulang Karas dengan nilai 0 jam/tahun
ANALISA POTENSI SUMBER DAYA AIR SEBAGAI PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO (PLTMH) Anam, Muhammad Syafi'ul; Sunaryantiningsih, Ina; Yuniahastuti, Irna Tri
ELECTRA : Electrical Engineering Articles Vol. 3 No. 1 (2022)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/electra.v3i01.13485

Abstract

Pembangkit Listrik Tenaga Mikrohidro adalah pembangkit listrik yang menggunakan air sebagai penggerak utama turbin dan generator. Daya yang dihasilkan oleh PLTMH bergantung dengan debit air yang mengaliri dan tinggi jatuh air yang tersedia pada Bendungan Gonggang. Penelitian ini bertujuan untuk mengetahui potensi daya pembangkitan listrik dengan memanfaatkan sumber daya air pada Bendungan Gonggang. Metode penelitian yang digunakan dalam penelitian ini adalah observasi lapangan untuk mengetahui data sekunder dan data primer berdasarkan studi literasi yang sudah dilakukan. Penelitian ini memberikan gambaran mengenai potensi daya pembangkitan listrik pada Bendungan Gonggang dengan melakukan observasi lapangan selama 4 bulan. Berdasarkan hasil penelitian didapatkan hasil rata-rata potensi daya pembangkitan listrik di Bendungan Gonggang yaitu sebesar 492 kW
Rancang Bangun Automatic Emergency Berbasis Iot Menggunakan Sensor Infrared Barrier Dan Whatsapp Solikin, Nur; Sari, Churnia; Yuniahastuti, Irna Tri
ELECTRA : Electrical Engineering Articles Vol. 3 No. 2 (2023)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/electra.v3i2.13641

Abstract

Internet of Things juga dikenal sebagai IoT adalah konsep yang berguna untuk memperluas manfaat konektifitas internet yang terhubung secara terus menerus. Penelitian ini didapat dari beberapa permasalahan pada Lab Terpadu Universitas PGRI Madiun, dimana masih terdapat mahasiswa dan dosen yang terkunci di dalam Gedung Lab Terpadu Universitas. Pada penelitian ini dirancang sebuah alat automatic emergency berbasis IoT menggunakan layanan notifikasi WhatsApp dan mikrokontroler Wemos D1 R1 yang dikendalikan oleh sensor Infrared Barrier FC-51. Hasil dari pengujian menunjukan prototype yang dirancang berhasil mendeteksi objek dengan jarak 0-10 cm dengan 10 kali pengujian menggunakan sampel tangan manusia dan berhasil mendeteksi objek pada jarak 0-15 cm dengan 9 kali pengujian menggunakan sampel handphone serta prototype dapat memberikan respon notifikasi dengan rata rata delay 2.40 detik dan telah berhasil direspon oleh alat tersebut dengan berbunyinya Buzzer dan menyalanya LED pada sensor yang kemudian didapat respon notifikasi oleh pengguna Bot WhatsApp, maka prototype dinyatakan telah berhasil dibuat dan bekerja dengan baik.
Optimizing Solar Panel Output with an IoT-Based Solar Tracker: UNIPMA Integrated Lab Case Study Yuniahastuti, Irna Tri; Sunaryantiningsih, Ina; Firmansyah, Arizhal; Akbar, Dian Faisal
invotek Vol 24 No 2 (2024): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v24i2.1222

Abstract

The development and development of new renewable energy has become increasingly widespread recently, one of the most widely used is solar panels. The biggest disadvantage of installing solar panels is that they are not able to follow the movement of the sun so that the power output produced is less than optimal. A solar tracker is a device used to optimize the absorption of sunlight by solar panels by following the movement of the sun. However, the use of sensors on solar trackers often requires quite complicated manufacturing. Therefore, this research aims to design a solar tracker without sensors in photovoltaic (PV) systems. The method in this research is to compare the power produced by solar panels with and without solar trackers based on IoT (Internet of Things) case studies at the UNIPMA Integrated Lab. Data collection was carried out in real time over a period of 3 days starting at 09.00 WIB with a solar panel tilt of 45° until 15.00 WIB with a solar panel tilt of 135°. The results of measurements using a solar tracker on photovoltaic (PV) showed an average current of 0.74 amperes (A), an average voltage of 18.7 volts (V), and an average power output of 14.4 watts. (W). Meanwhile, measurement results without a solar tracker showed an average current of 0.6 amperes (A), an average voltage of 17.9 volts and an average power output of 11.04 watts (W). So, the power produced with a solar tracker is more optimal than without a solar tracker.
Pengenalan Energy Teaching Kits Sebagai Media Energi Terbarukan pada Guru IPAS di SDN 03 Kanigoro Madiun Yuniahastuti, Irna Tri; Maharani, Swasti; Susanti, Vera Dewi; Atmojo, Alief Arida Dhimas
Jurnal SOLMA Vol. 14 No. 2 (2025)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

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Abstract

Background: This community service activity aims to introduce the Energy Teaching Kit to science teachers in schools. Through this program, teachers will be given training and assistance in using the tool so that they can integrate it into the learning process effectively. Awareness of the importance of renewable energy is increasing, especially amidst the challenges of climate change and dependence on fossil fuels. Method: The implementation methods used in community service include; initial observation and problem identification, design of learning media, review, creation of learning media and modules, socialization of learning media, practice of using learning media and assistance and evaluation. Results: The Energy Teaching Kit service was carried out at SDN 03 Kanigoro, Madiun City as a way to overcome various problems regarding renewable energy learning in accordance with the applicable Merdeka Curriculum. The energy kit is very helpful for teachers in explaining the concept of renewable energy and its application in everyday life to students. From this learning media, it can improve students' understanding and motivation, sharpen critical thinking and train them to work in a team
Computational Thinking in Elementary School Students: A Bibliometric Review Maharani, Swasti; Yuniahastuti, Irna Tri; Prastyaningrum, Ihtiari; Susanti, Vera Dewi; Romandoni, Hendrisa Rizqie
QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama Vol. 16 No. 2 (2024): Qalamuna - Jurnal Pendidikan, Sosial, dan Agama
Publisher : Lembaga Penerbitan dan Publikasi Ilmiah Program Pascasarjana IAI Sunan Giri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/qalamuna.v16i2.5824

Abstract

This study aims to provide an in-depth overview of trends in Computational Thinking (CT) learning among elementary school students through bibliometric analysis. The development of CT skills, which include logical thinking, systematic problem-solving, decomposition, pattern recognition, abstraction, and algorithmic design, is essential to prepare students for navigating a technology-driven future. By encouraging CT in primary education, students better understand technology and versatile skills that can be applied in various fields. This study uses a bibliometric approach by systematically collecting and analyzing scientific articles on CT in elementary schools. The analysis used specific metrics, including publication trends, citation analysis, and identifying leading research areas. Data is drawn from leading academic databases and analyzed to track the progress and impact of CT research over time. The results show a significant increase in publications and citations on CT, which peaked in 2021. The main trend highlights the importance of visual programming tools like Scratch in improving students' understanding of programming concepts, logic, and motivation. The study also uncovered research gaps and suggested areas that need further investigation, particularly in developing CT curricula and more effective teaching methodologies. These findings are expected to significantly contribute to advancing CT education and help equip the younger generation with the skills needed.
Pelatihan Teknologi Digital dan Penghematan Energi Berbasis Panel Surya untuk Keluarga Mandiri pada Ibu-Ibu PKK di Dusun Brendil Ngawi Yuniahastuti, Irna Tri; Yudha Adi Kusuma; Ridam Dwi Laksono
Jurnal Pengabdian Pada Masyarakat METHABDI Vol 5 No 2 (2025): Jurnal Pengabdian Pada Masyarakat METHABDI
Publisher : Universitas Methodist Indonesia

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Abstract

The development of digital technology and the increasing need for energy are challenges as well as opportunities in community empowerment efforts, especially in rural areas. Providing targeted and applicable training on the use of digital technology and energy savings based on solar panels is a solution to overcome these problems. The training was conducted on 25 PKK mothers in the Brendil Ngawi hamlet. The results of this training showed an increase in knowledge about digital technology and an increase in knowledge about solar panels by more than 50% of the total participants. It is hoped that after this training, PKK mothers will be able to apply this knowledge in their respective household lives so that they can form independent and self-sufficient families.
Co-Authors Ahmad Zaki Akbar, Dian Faisal Anam, Muhammad Syafi'ul Anggraini, Yussi Atmojo, Alief Arida Dhimas Firmansyah, Arizhal Ihtiari Prastyaningrum, Ihtiari Ina Sunaryantiningsih, Ina Kusuma, Feldinando Altalarik Nur Solikin Prasetya, Hangga Putra, Reza Aditya Romandoni, Hendrisa Rizqie Sari, Churnia Swasti Maharani, Swasti Vera Dewi Susanti Yudha Adi Kusuma