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Forecasting Error Modelling for Improving PV Generation Prediction Aprillia, Happy; Yang, Hong-Tzer
SPECTA Journal of Technology Vol 2 No 1 (2018): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v2i1.92

Abstract

Accurate forecasting of Photovoltaic (PV) generation output is important in operation of high PV-penetrated power systems. In this paper, an adaptive uncertainty modelling method for forecasting error is proposed to improve the prediction accuracy of PV generation. The proposed method models the uncertainty in forecast data using Kernel Density Estimator and guarantee the provision of accurate expected value. Neural Network model is then constructed by the developed uncertainty model to forecast the PV output. The actual confidence level is traced within the day and injected as an input to the Neural Network model by observing the Mean Absolute Prediction Error (MAPE) and Unscaled Mean Bounded Relative Absolute Error (UMBRAE). The proposed method is tested with various significant changes of weather condition and proved to have promising performance on PV generation forecasting. Thus, the developed adaptive uncertainty model can be further used in power system planning that have high-penetration energy sources with stochastic behavior.
Analysis of the effect of a microcontroller-based solar panel cooling system on temperature and power output Vicky Andria Kusuma; Happy Aprillia; Sena Sukmananda Suprapto; Muhammad Nizhom Ramadhani; Aji Akbar Firdaus; Dimas Fajar Uman Putra
International Journal of Applied Power Engineering (IJAPE) Vol 12, No 2: June 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v12.i2.pp119-125

Abstract

This research addresses the problem of temperature fluctuations affecting the efficiency of solar panels. A cooling system has been developed using a Peltier and a combination of air- and water-cooling methods. The air-cooling system involves placing a Peltier coated with a heatsink under the solar panel, while the water-cooling system uses pumped water on the panel's surface. The study aims to design a solar panel cooling system to reduce temperature and power losses and compare its output to standard solar panels. The system includes a Peltier, DC fan, and heatsink. Results indicate that the air-cooling system reduced temperature losses on the bottom milk of solar panels by 14.5%. However, the surface of solar panels showed no reduction in temperature losses. Additionally, solar panels with cooling systems were able to reduce power losses by 4% compared to standard solar panels. This research suggests that the use of an air-cooling system utilizing Peltier as the cooling medium could be a potential solution to reduce temperature losses and power losses on solar panels.
Forecasting Error Modelling for Improving PV Generation Prediction Happy Aprillia; Hong-Tzer Yang
SPECTA Journal of Technology Vol. 2 No. 1 (2018): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1029.579 KB) | DOI: 10.35718/specta.v2i1.92

Abstract

Accurate forecasting of Photovoltaic (PV) generation output is important in operation of high PV-penetrated power systems. In this paper, an adaptive uncertainty modelling method for forecasting error is proposed to improve the prediction accuracy of PV generation. The proposed method models the uncertainty in forecast data using Kernel Density Estimator and guarantee the provision of accurate expected value. Neural Network model is then constructed by the developed uncertainty model to forecast the PV output. The actual confidence level is traced within the day and injected as an input to the Neural Network model by observing the Mean Absolute Prediction Error (MAPE) and Unscaled Mean Bounded Relative Absolute Error (UMBRAE). The proposed method is tested with various significant changes of weather condition and proved to have promising performance on PV generation forecasting. Thus, the developed adaptive uncertainty model can be further used in power system planning that have high-penetration energy sources with stochastic behavior.
Pemodelan dan Simulasi Shunt Active Power Filter (SAPF) Menggunakan Metode PI-GWO pada Sistem Tenaga Listrik IEEE 14 Bus Achmad Rifa’i; Happy Aprillia; Yun Tonce Kusuma Priyanto
SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (624.872 KB) | DOI: 10.35718/specta.v6i3.681

Abstract

Current technological developments generally use sophisticated equipment which is categorized as a non-linear load. The massive use of non-linear loads causes side effects on the quality of electric power. Electric power systems that are connected to non-linear loads will experience distortion in current and voltage by harmonics due to the engineering of voltage waveforms due to the installation of many converters operating at frequencies that do not match the utility frequency of 50 or 60 Hz. Taking into account the great benefits for humans, the use of non-linear loads cannot be reduced but can be applied by keeping non-linear loads operating with good quality electric power. Therefore, harmonic filter equipment is needed to reduce harmonics. Passive filters and active filters can be used where active filters have many advantages compared to passive filters because they can adjust to varying working frequencies. To obtain more optimal harmonic reduction results, an active filter Shunt Active Power Filter (SAPF) using a PI controller tuned with the Gray Wolf Optimizer (GWO) optimization method is designed. The SAPF PI-PSO method is used as a comparison. The SAPF experiment on the IEEE 14 bus test system, PSO obtained better ITAE error results and computation time than GWO. The ITAE value and PSO computing time were 108.5821 second and 4255.097192 second, respectively, while GWO obtained 109.0172 second and 4379.461 second. However, the GWO-tuned SAPF is more able to reduce the THD of the 12 bus current on the IEEE 14 bus system by 13%.
Perancangan Kebijakan Sistem Ketenagalistrikan Kawasan Institut Teknologi Kalimantan Aprillia, Happy; djafar, alfian; Filiana, Firilia
SPECTA Journal of Technology Vol. 7 No. 3 (2023): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v7i3.633

Abstract

The Kalimantan Institute of Technology (ITK) already has 17 study programs and 3002 active students until 2021 and is projected to have 20 study programs by 2025. However, geographical location of ITK affect ITK facilities readiness that later supporting tridharma activities to be carried out perfectly. The Mechanical, Electrical and Plumbing System (MEP) at the ITK Campus needs to be designed with a sustainable design in order to accommodate the needs of electricity, sound, air conditioning, clean water, and dirty water on the ITK Campus until 2025. This study aims to design a sustainable MEP design for distribution of electricity especially in lightning protection in order to meet the characteristics of safe, reliable and appropriate design. The stages involved include 8 (eight) processes, namely: 1) data collection and design of the existing MEP, 2) projecting the growth of the academic community and equipment needs until 2025, 3) reviewing the existing MEP system as the existing protection system, 4) calculation of the suitability of the existing MEP system based on projected needs, SNI and SPLN, 5) planning for improvement of existing systems and plans for developing MEP systems, 6) making working drawings of the MEP system, 7) drafting Bill of Quantity MEP, and 8) MEP budgeting. This research is expected to produce output in the form of MEP planning drawings that are recommendation of detailed engineering design which are documented in strategic policies through the rector's regulation. This research is aimed to be used as a reference for MEP design for ITK development in the future development.
Analisis Perancangan Pembangkit Listrik Tenaga Surya di Gedung Laboratorium Terpadu Institut Teknologi Kalimantan Sutejo, Arya Golong; Farid, Mifta Nur; Aprillia, Happy
Jurnal Teknik Elektro dan Komputasi (ELKOM) Vol 6, No 1 (2024): ELKOM
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/elkom.v6i1.8171

Abstract

Kebutuhan akan energi listrik di Indonesia masih bergantung pada energi fosil, namun untuk mengurangi ketergantungan tersebut, penerapan Energi Baru Terbarukan (EBT) menjadi penting dengan target pemerintah mencapai 23% pada tahun 2025. Wilayah Kalimantan Timur di Indonesia memiliki potensi besar untuk memanfaatkan energi surya, sehingga penelitian ini merancang PLTS on-grid sebagai alternatif pemenuhan kebutuhan listrik Gedung Laboratorium Terpadu ITK, terhubung langsung ke jaringan PLN tanpa menggunakan baterai penyimpanan energi. Penelitian ini menganalisis daya listrik keluaran PLTS on-grid pada cuaca mendung dan cerah di Gedung Laboratorium Terpadu ITK, serta aspek ekonomi terhadap biaya tagihan listrik dengan mengujikan simulasi iradiasi matahari, temperatur, dan daya keluaran PLTS. Hasil penelitian menunjukkan bahwa PLTS on-grid yang optimal pada atap Gedung Laboratorium Terpadu ITK menggunakan 5 inverter 50 KW dan 492 panel surya 480Wp, dipasang dalam 6 seri dan 19 paralel, dengan tingkat suplai daya sebesar 50,06%. Pada cuaca mendung, PLTS menghasilkan daya keluaran sebesar 17,614 kW dengan iradiasi 98 W/m2, dan pada cuaca cerah, daya keluaran meningkat menjadi 224,95 kW dengan iradiasi 965 W/m2 dan temperatur 28,5°C. Dari segi ekonomi, dengan waktu pengembalian modal selama 5 tahun 6 bulan dan modal awal Rp.1.513.700.309 serta perhitungan performance ratio (PR), diperoleh persentase sebesar 86% dengan energi tahunan minimal 70%-90%, sehingga disimpulkan PLTS on-grid layak dibangun sebagai bagian dari penerapan Energi Baru Terbarukan di Gedung Laboratorium Terpadu ITK
Analisis Pembebanan Statis Roll Bar Chassis Mobil Hemat Energi Radyantho, Kholiq Deliasgarin; Rahman, Shafera Maulana; Fadhillah, Muhammad Hakim; Arrizal, Daffa Akmalludin; Ramadhani, Sajri; Malau, Kevin Joshwadi; Hakiky, Rizal Muhammad; Wiratmoko, Eka Yoga; Aprillia, Happy; Sa’adiyah, Devy Setiorini; Djafar, Alfian; Haryono, Hadhimas Dwi
JURNAL CRANKSHAFT Vol 7, No 2 (2024): Jurnal Crankshaft Vol.7 No.2 (2024)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v7i2.12649

Abstract

Regulasi pembatasan emisi gas buang dari kendaraan bermotor mulai banyak diterapkan di banyak negara mendorong industri otomotif untuk beralih menggunakan teknologi yang ramah lingkungan, seperti mobil listrik. Pada penelitian ini analisis pembebanan dilakukan berdasarkan peraturan teknis Kontes Mobil Hemat Energi (KMHE) 2024 untuk mengetahui nilai tegangan, safety factor, dan defleksi pada chassis berbahan galvanized steel dan aluminium 6061 dengan pembebanan sebesar 700 N pada bagian roll hoop/roll bar. Simulasi menggunakan software CAD dengan metode finite element analysis (FEA). Pada chassis berbahan galvanized steel nilai tegangan maksimum 52,420 MPa dari batas yield strength 203,94 MPa, defleksi maksimumnya 0,461 mm, dan safety factor 3,6. Kemudian pada chassis berbahan aluminium 6061 nilai tegangan maksimum 54,410 MPa dari batas yield strength 227,52 MPa, defleksi maksimum nya 1,34 mm, dan nilai safety factor sebesar 4,2. 
Peningkatan Efektivitas Produksi Dan Perluasan Pasar Terasi Udang Di KB Khinasih Dengan Alat Pengering Terasi Dan Rebranding Produk Aprillia, Happy; Jaya, Asma; Waskito, Indra Budi; Hudayana, Nurul; Ananda, Ryan; Iqbal, Muhammad; Yuserby, Muhammad; Ondi, Daniel; Natanael, Sergius
Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Vol 7, No 1 (2024): Januari 2024
Publisher : STMIK Royal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/jurdimas.v7i1.2825

Abstract

This community service (PkM) was conducted near the coast of Manggar Beach, Balikpapan City, in collaboration with partners from the PKK Khinasih Quality Family Village (KB Khinasih) group, which has micro-industry potential for processed shrimp paste. The challenges faced include: 1) the drying method for shrimp paste is conducted by sun-drying, which means that during the rainy season, the drying process for shrimp paste takes a long time and hampers the production process; and 2) sales of processed shrimp paste products are currently limited to the local community. To address these issues related to the extended drying process and to expand marketing efforts, this PkM initiative developed a shrimp paste drying tool tailored to the needs of the PKK KB Khinasih women. Additionally, outreach activities were conducted to educate them about design and packaging strategies that could be beneficial for hosting product exhibitions. The dryer has been handed over to the PKK women for suitability testing with regard to its function, quality, and capacity. KB Khinasih has also adopted label and sticker designs for packaging processed rebon shrimp paste products.            Keywords: dryer; product sticker and label; rebon shrimp paste
Analisis Proses Pengadaan Material dengan Pendekatan Simulasi di Perusahaan Listrik Negara (PLN) Muhammad Ali; Christopher Davito Prabandewa Hertadi; Happy Aprillia; Muqimuddin Muqimuddin
G-Tech: Jurnal Teknologi Terapan Vol 8 No 3 (2024): G-Tech, Vol. 8 No. 3 Juli 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i3.4444

Abstract

In the material procurement process, there are often delays in the arrival of materials that cause maintenance and operational delays. Evaluation of the material procurement process is necessary to identify the factors that cause delays. Utility and waiting time for various staff showed significant variations, with the highest waiting time at the approving stage (4-24 hours) and the creation of TOR, FPB, RAB documents (1-11 hours). Utilization at the FPB, TOR, RAB creation staff from 13% to 62%, RO staff 6%-55%, HPE staff 50%-77%, RKS staff 10%-52%, approving user team, assistant manager to manager of 73%-90%, PDP staff 0%-45%, HPS staff 0%-45%, PPP staff 0%-44%, entry staff 61%-81%, eval staff 4%-41%, BA staff 0-56%, PO staff 8-52%. Three improvement scenarios were developed, with scenarios 2 and 3 being the best, scenario 2 reducing resources and scenario 3 increasing the purchase of certain materials, in order to optimize inventory.
PEMBUATAN KOLAM BUDIDAYA IKAN LELE DENGAN SISTEM KOLAM BIOFLOK DAN PEMBERI PAKAN OTOMATIS Aprillia, Happy; Akmal, Abiyyu; Baihaqi, Achmad; Mahardhika, Arya; Septianto, Oik; Sari, Aisyah; Wardhani, Annisa; Soraya, Ananda
PIKAT Jurnal Pengabdian Kepada Masyarakat ITK Vol. 5 No. 2 (2024): PIKAT : Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Institut Teknologi Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/pikat.v5i2.1280

Abstract

Tri Dharma Perguruan Tinggi merupakan kewajiban mahasiswa, salah satunya melalui program sinergi kepada mitra sebagai bentuk pengabdian kepada masyarakat. Program ini bertujuan untuk memberikan pengalaman ilmu pengetahuan dan teknologi (IPTEK) serta solusi terhadap permasalahan di suatu daerah. Berdasarkan hasil survei yang dilakukan oleh kelompok 1J, diputuskan bahwa kegiatan ini akan dilaksanakan di Kelurahan Sungai Merdeka RT. 07 KM. 36, Kecamatan Samboja Barat, Kabupaten Kutai Kartanegara, Kalimantan Timur. Pertumbuhan populasi dan kebutuhan pangan yang meningkat menjadikan sektor pertanian, termasuk budidaya ikan, sebagai aspek penting untuk pemenuhan kebutuhan protein hewani. Program ini bertujuan untuk mengimplementasikan teknologi inovatif dalam budidaya ikan lele (Clarias sp.), dengan menggabungkan sistem kolam bioflok dan pemberi pakan otomatis. Sistem bioflok akan meningkatkan kualitas air dan efisiensi pemeliharaan ikan, sementara pemberi pakan otomatis akan mengoptimalkan manajemen pakan, mengurangi pemborosan, dan memenuhi kebutuhan nutrisi ikan secara tepat. Dari 25 responden, hasil survey menyatakan bahwa 2% sangat tidak setuju, 13% tidak setuju, 27% netral, 32% setuju dan 26% sangat setuju dengan keberspelaksanaan program bioflok ini.
Co-Authors Achmad Baihaqi Achmad Rifa’i Ade Wahyu Yusariarta Putra Parmita Adi Mahmud Jaya Marindra Adnan Dafa Raihan Aidil Saputra Kirsan Akmal, Abiyyu Ananda, Ryan Anestesia Purba, Arini Anifah, Eka Masrifatus Annisa Wardhani Arrizal, Daffa Akmalludin Augusto, Hengky Barokatun Hasanah Barokatun Hasanah, Barokatun Basransyah Basransyah Basransyah, Basransyah Christopher Davito Prabandewa Hertadi Devy Setiorini Sa’adiyah Dimas Fajar Uman Putra Djafar, Alfian Fadhillah, Muhammad Hakim Falah, Jericho Al Farid, Mifta Nur Fatimatuz Zahrah, Annisa Felecya Sitinjak, Joyce Filiana, Firilia Firdaus, Aji Akbar Firilia Filiana Giyantara, Andhika Hakiky, Rizal Muhammad Hamzah, Muhammad ilham hasby Haryono, Hadhimas Dwi Hong-Tzer Yang Hudayana, Nurul Ifan Awang Riski Widayat Irwansyah, Fazri Rahmadi Ismi Khairunnisa Ariani Jaya, Asma Kartika Nugraheni Kartika Nugraheni Khairunnisa Ariani, Ismi Kharis Sugiarto Khoirul Erfanudin Kholiq Deliasgarin Radyantho Mahardhika, Arya Malau, Kevin Joshwadi Martin Sinambela, Johannes Maulana Ibrahim Mochammad Imron Awalludin Muhammad Agung Nursyeha, Muhammad Agung Muhammad Ali Muhammad Fajar Rivaldi Muhammad Fathur Rozi Muhammad Iqbal Muhammad Nizhom Ramadhani Muqimuddin Muqimuddin Natanael, Sergius Nugraha, Muhamad Alif Nur Sepliana Harfika Oik Rizki Septianto Ondi, Daniel Rahman, Shafera Maulana Ramadhani, Sajri Riza Hudayarizka Rozul Faza, Muhammad Samsu Dlukha N Saputra, Riza Hadi Sari, Aisyah Saroh Qarini, Ayuk Septianto, Oik Soraya, Ananda Sugiarto, Kharis Suprapto, Sena Sukmananda suratno Suratno Sutejo, Arya Golong Thorikul Huda Thorikul Huda Vicky Andria Kusuma Wahyu Yusariarta Putra Parmita, Ade Waskito, Indra Budi Widayat, Ifan Awang Riski Wiratmoko, Eka Yoga Yang, Hong-Tzer Yun Tonce Kusuma Priyanto Yuserby, Muhammad