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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) IAES International Journal of Artificial Intelligence (IJ-AI) Transmisi: Jurnal Ilmiah Teknik Elektro KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Bulletin of Electrical Engineering and Informatics Jurnal Mahasiswa TEUB Jurnal Teknologi Jurnal EECCIS REKAYASA e-Jurnal Arus Elektro Indonesia ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Bulletin of Electrical Engineering and Informatics Proceeding of the Electrical Engineering Computer Science and Informatics Network Engineering Research Operation [NERO] Jurnal Media Elektro : Journal of Electrical Power, Informatics, Telecommunication, Electronics, Computer and Control System JOURNAL OF SCIENCE AND APPLIED ENGINEERING Jurnal Kelautan Nasional Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Journal of Robotics and Control (JRC) Indonesian Journal of Electrical Engineering and Computer Science ALINIER: Journal of Artificial Intelligence & Applications Jurnal Nasional Teknik Elektro dan Teknologi Informasi SNTE
Rini Nur Hasanah
Departemen Teknik Elektro, Fakultas Teknik, Universitas Brawijaya
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Other

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PENGENDALIAN MPPT BERBASIS METODE P&O MENGGUNAKAN BOOST CONVERTER Frediawan Yuniar; Rini Nur Hasanah; Onny Setyawati
Jurnal Arus Elektro Indonesia Vol 3 No 1 (2017)
Publisher : Fakultas Teknik, Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jaei.v3i1.5497

Abstract

Sinar matahari merupakan sumber energi terbarukan yang tersedia secara gratis dan dapat menjadi alternatif sumber energi listrik selain yang disediakan oleh Perusahaan Listrik Negara (PLN). Dalam bentuk photovoltaic (PV), penyediaan energi listrik bersumber sinar matahari diharapkan mampu memberikan suplai daya yang sama handalnya dengan PLN. Untuk memaksimalkan daya yang dihasilkan sistem PV, diterapkan teknik maximum power point tracking (MPPT). Berbagai algoritme pengendalian dicari untuk memaksimalkan daya sistem PV. Pada penelitian ini dikaji penggunaan metode perturb and observe (P&O) yang diimplementasikan pada modulasi lebar pulsa (pulse-width modulation/PWM) untuk mengendalikan boost converter. Untuk mengatasi timbulnya osilasi di sekitar titik daya maksimum karena penggunaan metode P&O, pada penelitian ini diusulkan modifikasi dengan menambahkan pengukuran variabel arus saat perubahan iradiasi. Hasil simulasi menunjukkan bahwa hilangnya potensi daya yang dibangkitkan dapat dikurangi, yang tidak dapat dilacak jika menggunakan metode P&O konvensional.
Pengaturan Injeksi Arus pada Coilgun dengan PWM menggunakan Metode Algoritma Genetika Basuki Winarno; Wijono Wijono; Rini Nur Hasanah
Jurnal Arus Elektro Indonesia Vol 1 No 3 (2015)
Publisher : Fakultas Teknik, Universitas Jember

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Abstract

Paper ini membahas tentang pengaturan injeksi arus pada coilgun untuk menghasilkan suatu profil kecepatan tertentu. Rancangan konstruksi koil yang diperlukan disusun dari 3 bagian area. Pergerakan proyektil dalam tiap area dibatasi oleh energi maksimal yang disediakan masing-masing koil sesuai kemampuan hantar arus konduktornya. Pengaturan duty cyclepada pulse-width modulation (PWM) digunakan untuk menghasilkan besar tegangan keluaran yang menentukan besar arus injeksi ke dalam koil. Arus yang diinjeksikan ke dalam koil diubah setiap 1 ms selama 24 ms, yaitu waktu tempuh proyektil dalam melewati 3 area, sesuai dengan kebutuhan energi yang berubah terhadap jarak. Jumlah layer pada masing-masing koil ditentukan secara iteratif untuk mempertimbangkanketerkaitan antar parameter koil. Injeksi arus pada ketiga koil dilakukan secara terpisah pada saat yang bersamaan, sehingga untuk setiap posisi proyektil tertentu dalam koil diperlukan pengaturanduty cycleyang berbeda.Algoritma genetika digunakan untuk keperluan tersebut. Setiapduty cycledikodekan menggunakan bilangan biner 8 bit, sehingga untuk setiap injeksi diperlukan pengkodean menggunakan 3x8 bit, yang membentuk populasi duty cycle. Hasil penelitian menunjukkan untuk mencapai kesesuaian yang baik antara profil kecepatan gerak proyektil menggunakan metode yang diusulkan dan profil kecepatan yang digunakan sebagai acuan. Besar arus maksimal untuk koil 1 adalah 1460 A, koil 2 adalah 1752 A, dan koil 3 adalah 1898 A dengan kecepatan akhir sebesar 54,5 m/s.    
PENENTUAN LOKASI PENEMPATAN TCSC PADA SISTEM KELISITRIKAN SULAWESI SELATAN DAN BARAT MENGGUNAKAN INDEKS SENSITIVITAS Nur Vidya Ramadhani; Rini Nur Hasanah; Hadi Suyono
Jurnal Media Elektro Vol 11 No 1 (2022): April 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v0i0.5958

Abstract

The transmission line that functions to distribute energy from the generating center to the load center must function efficiently. However, the extensive network allows the line operation to be inefficient. This allows the occurrence of power losses and voltage drop in the system. Therefore, efforts are needed to effectively utilize the available power system capacity, one of which is by installing new devices such as TCSC (Thyristor Controlled Series Capacitor). The method used is the Sensitivity Index. Power flow analysis using PSAT (Power System Analysis Toolbox) program. Based on the data analysis that has been done, it was found that the most sensitive line is Pngkep70kV–Mndai. After the installation of the TCSC device on the sensitive line, there was a decrease in power losses and an increase in voltage stability in the system compared to before the installation of TCSC. Thus it can be concluded that the installation of TCSC provides a positive performance on the electricity system of South and West Sulawesi.
Power Factor Improvement of The Glenmore Sugar Industry Electrical System Resi Dwi Jayanti Kartika Sari; Rini Nur Hasanah; Wijono Wijono
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 5, No 1 (2022): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v5i1.3282

Abstract

AbstractThis study discusses the improvement of the power factor in the Glenmore Sugar Industry electrical system. Low power factor can be caused by variations in inductive loads. This has an impact on large currents and high reactive power so that a black out can occur in the Glenmore Sugar Industry electrical system. Low power factor is corrected with the most effective Costum Power Devices, namely Static Var Compensator (SVC) and Static Synchronous Compensator (STATCOM). The evaluated and corrected load buses are those with low power factor.The simulation results show in the application of SVC for the lowest results, power factor increased from 0.76 to 0.78 with reactive power values in the range from + 1.6 to – 0.64 MVAR. The power factor increased from 0.76 to 0.85 with reactive power values in the range from +4.9 to –1.9 MVAR. And for the highest results, the power factor increased from 0.82 to 0.92 with reactive power values in the range from +3.9 to –1.5 MVAR.The application of STATCOM can increase the power factor with reactive power values in the range from +4.9 to – 0.994 MVAR, +1.6 to -0.32 MVAR and +3.9 to -0.7875 MVAR. Keywords – Power factor, SVC, STATCOM, Reactive power, Industry.
ANALISIS KELAYAKAN PEMBANGKIT LISTRIK TENAGA SURYA (PLTS) ON GRID MENGGUNAKAN SOFTWARE PVSYST 7.2.6 DI GEDUNG SEKOLAH Lintang Gadis Ratu Rachellya; Teguh Utomo; Rini Nur Hasanah
Jurnal Mahasiswa TEUB Vol. 10 No. 2 (2022)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

Abstrak-Pada tahun 2020-2029, kebutuhan listrik di Indonesia diproyeksikan meningkat yaitu rata-rata sebesar 6.42% (Twh) khusus dalam kebutuhan listrik (PLN, 2020). Implementasi dari sistem PLTS On Grid merupakan sistem yang memiliki pengeluaran biaya paling sedikit dikarenakan tidak diperlukannya baterai pada sistem On Grid (Kananda et. all, 2013). Salah satu pemenuhan kebutuhan listrik adalah penerapan PLTS, seperti PLTS di gedung SMA Negeri 1 Waru. Jika dilakukan tanpa koneksi on-grid, kelebihan penggunaan daya listrik PLTS tidak dapat dimanfaatkan, karena tidak dapat diekspor ke jaringan PLN. Perencanaan pemasangan sistem PLTS On Grid di SMA Negeri 1 Waru diharapkan dapat menjadi alternative solusi dalam mengurangi pembayaran dari kelistrikan pada gedung sekolah dan mengurangi penggunaan bahan bakar fosil sebagai bahan bakar utama. Adapun tujuan yang akan dicapai dalam penelitian ini dilakukan analisis performansi dan analisis ekonomis dari sistem PLTS On Grid dengan software PVSyst 7.2.6 pada SMA Negeri 1 Waru. Perancangan sistem PLTS On Grid di SMA Negeri 1 Waru Sidoarjo memiliki kapasitas sebesar 330 Wp/unit yang terdiri dari 580 unit panel surya merk JAM72-S10-330-SC pabrikan JA Solar, 6 buah inverter model MID 30KTL3-X pabrikan Growatt New Energy dengan daya nominal sebesar 30 kW/unit. Simulasi sistem PLTS dengan PVSyst 7.2.6 menghasilkan energi listrik sebesar 267,8 MWh/tahun. Perancangan sistem PLTS On Grid di SMA Negeri 1 Waru memiliki rasio performansi (PR) sebesar 76,64% untuk hasil simulasi dan 85% untuk perhitungan teori dengan investasi sebesar Rp2.332.418.971,-, Life Cycle Cost (LCC) selama 25 tahun senilai Rp2.716.836.944,, Cost of Energy (COE) senilai Rp435.404/kWh berdasarkan hasil simulasi dan Rp617,90/kWh berdasarkan perhitungan teori. Sistem PLTS di SMA Negeri 1 Waru Sidoarjo memiliki nilai Net Present Value (NPV) sebesar Rp4.773.017.432 nilai Profitability Index (PI) sebesar 3,05 dan tahun pengembalian setelah tahun ke-6,6 berdasarkan simulasi PVSyst setelah tahun ke-7 berdasarkan perhitungan manual. Pemodelan dan DED dari sistem PLTS On Grid disarankan untuk dibuat sebelum melakukan pemasangan untuk memperjelas detail ruangan, beban, dan wiring dalam gedung. Kelayakan PLTS On Grid di SMA Negeri 1 Waru Sidoarjo layak untuk dibangun dilihat dari aspek teknis dan aspek ekonomi.Kata kunci— Gedung Sekolah, PLTS, PVsyst, On-Grid, Analisa KelayakanAbstract-In 2020-2029, electricity demand in Indonesia is projected to increase by an average of 6.42% (Twh) specifically in electricity needs (PLN, 2020). The implementation of the PLTS On Grid system is a system that has the least cost because there is no need for batteries in the On Grid system (Kananda et. all, 2013). One of the potential applications of PLTS On Grid in elementary school buildings. This study conducted a performance analysis and economic analysis of the PLTS On Grid system with PVSyst 7.2.6 software at SMA Negeri 1 Waru. The design of the On Grid PLTS system at SMA Negeri 1 Waru Sidoarjo has a capacity of 330 Wp/unit consisting of 580 units of solar panel brand JAM72-S10-330-SC manufacturer JA Solar, 6 inverters model MID 30KTL3-X manufacturer Growatt New Energy with nominal power of 30 kW/unit. The PLTS system simulation with PVSyst 7.2.6 produces electrical energy of 267.8 MWh/year. The PLTS On Grid system design at SMA Negeri 1 Waru has a performance ratio (PR) of 76.64% for simulation results and 85% for theoretical calculations with an investment of Rp.2,332,418,971,-, Life Cycle Cost (LCC) for 25 years worth Rp2,716,836,944, Cost of Energy (COE) worth Rp435,404/kWh based on simulation results and Rp617.90/kWh based on theoretical calculations. The PLTS system at SMA Negeri 1 Waru Sidoarjo has a Net Present Value (NPV) of IDR 4,773,017,432, a Profitability Index (PI) value of 3.05 and the return year after the 6th year based on the PVSyst simulation after the 7th year. based on manual calculations. Modeling and DED of the PLTS On Grid system is recommended to be made prior to installation to clarify the details of the room, load, and wiring in the building. The feasibility of PLTS On Grid at SMA Negeri 1 Waru Sidoarjo is feasible to be built from the technical and economic aspects.Keywords— School Building, PLTS, PVsyst, On-Grid, Feasibility AnalysisAbstract— In 2020-2029, the electricity demand in Indonesia projected to increase by an average of 6.42% (Twh) specifically in electricity needs (PLN, 2020). Implementation of On Grid PLTS system is a system that has least expense because it is not needed battery on the On Grid system (Kananda et. all, 2013). One of fulfillment of electricity needs is the application of PLTS, such as PLTS in the SMA Negeri 1 Waru building. If done without on-grid connection, excess use of PLTS electrical power is not can be utilized, because it cannot be exported to the PLN network. Planning for the installation of the PLTS On Grid system at SMA Negeri 1 Waru is expected to be an alternative solution in reduce payments for electricity in school buildings and reduce the use of fossil fuels as fuel main. The objectives to be achieved in this research perform performance analysis and economic analysis of the system PLTS On Grid with PVSyst 7.2.6 software at SMA Negeri 1 waru. PLTS On Grid system design at SMA Negeri 1 Waru Sidoarjo has a capacity of 330 Wp/unit consisting of: 580 units of solar panels brand JAM72-S10-330-SC manufacturer JA Solar, 6 inverters MID model 30KTL3-X manufacturer Growatt New Energy with a nominal power of 30 kW/unit. System simulation PLTS with PVSyst 7.2.6 produces electrical energy of 267.8 MWh/year. PLTS On Grid system design in SMA Negeri 1 Waru has a performance ratio (PR) of 76.64% for simulation results and 85% for theoretical calculations with investment of Rp2,332,418,971,-, Life Cycle Cost (LCC) for 25 years worth IDR 2,716,836,944, Cost of Energy (COE) worth Rp435,404/kWh based on simulation results and Rp617.90/kWh based on theoretical calculations. PLTS system at SMA Negeri 1 Waru Sidoarjo has a Net Present Value (NPV) of Rp4.773.017.432 Profitability Index (PI) value of 3.05 and payback year after 6,6 year based on simulation PVSyst after 7th year based on manual calculation. Modeling and DED of the PV mini-grid system is recommended for made prior to installation to clarify details space, load, and wiring in the building. Eligibility of PLTS On The grid at SMA Negeri 1 Waru Sidoarjo is worth looking at from the technical and economic aspects. Keywords— School Building, PLTS, PVsyst, On-Grid, Analysis Appropriateness
EFFECT OF STEP SKEWING METHOD ON THE COGGING TORQUE VALUE OF PERMANENT MAGNET SYNCHRONOUS GENERATOR Bernadus Blasio Arsoni; n/a Wijono; Rini Nur Hasanah
Jurnal Mahasiswa TEUB Vol. 10 No. 2 (2022)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

Abstrak–-PMSG (Generator Sinkron Magnet Permanen) adalah generator yang medan magnetnya dibangkitkan oleh magnet permanen yang terletak pada rotor dan tidak memerlukan sumber eksitasi eksternal untuk membangkitkan medan magnet. Meskipun mesin magnet permanen adalah mesin listrik berperforma tinggi, ada komponen torsi yang mempengaruhi kinerja keluarannya yang disebut torsi cogging. Torsi cogging juga menciptakan riak torsi selama operasi yang juga menyebabkan kerugian lain seperti berkurangnya efisiensi, kebisingan, dan getaran pada sistem. Untuk mengatasi masalah tersebut, penelitian ini menawarkan metode step skewing. Tujuan dari metode ini adalah untuk mengurangi nilai perubahan reluktansi terhadap posisi. Dengan demikian, perubahan desain dimensi aksial rotor akan mengurangi nilai perubahan reluktansi dalam arah keliling dan dengan demikian torsi cogging akan berkurang. Tujuan dari penelitian ini adalah untuk menguji pengaruh metode step-skewing dalam menurunkan torsi cogging pada generator sinkron magnet permanen. Metode yang digunakan adalah simulasi 3D dengan menggunakan software berbasis finiteelement method (FEM). Pada simulasi metode step skewing ini, parameter yang divariasikan adalah jumlah segmen magnetik (j) sebesar 3, 4, 5, 6, dan 7. Hasil simulasi dan analisis menunjukkan bahwa metode step-skewing dapat mengurangi nilai torsi cogging pada generator sinkron magnet permanen. Semakin besar jumlah segmen magnetik (j), semakin kecil nilai torsi cogging.Kata Kunci— Cogging, Segmen, Skewing, PMSG.Abstract—PMSG (Permanent Magnet Synchronous Generator) is a generator whose magnetic field is generated by a permanent magnet located on the rotor and does not require an external excitation source to generate a magnetic field. Although permanent magnet machines are high performance electric machines, there is a torque component that affects their output performance called cogging torque. Cogging torque also creates torque ripple during operation which also causes other disadvantages such as reduced efficiency, noise, and vibration in the system. To overcome this problem, this research offers a step skewing method. The purpose of this method is to reduce the value of the change in reluctance with respect to position. Thus, a change in the design of the axial dimension of the rotor will reduce the value of the change in reluctance in the circumferential direction and thus the cogging torque will be reduced. The purpose of this study is to examine the effect of the step-skewing method in reducing the cogging torque on a permanent magnet synchronous generator. The method used is 3D simulation using finite-element method (FEM) based software. In this simulation of the step skewing method, the parameters that are varied are the number of magnetic segments(j) of 3, 4, 5, 6, and 7. The results of the simulation and analysis show that the step-skewing method can reduce the value of the cogging torque on the permanent magnet synchronous generator. The greater the number of magnetic segments (j), the smaller the cogging torque value.Index Terms—Cogging, Segment, Skewing, PMSG.
RANCANG BANGUN PEMBANGKIT LISTRIK TENAGA SURYA SEBAGAI CATU DAYA SISTEM PENYINARAN DAN KENDALI NUTRISI PADA TANAMAN HIDROPONIK OUTDOOR Imam Prakoso; n/a Nurussa'adah; Rini Nur Hasanah
Jurnal Mahasiswa TEUB Vol. 10 No. 2 (2022)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

ABSTRAKPada era moderen ini banyak petani sayur yang mengganti dan mencari alternatif media tanam yang lebih baik. Petani mencari alternatif yang mudah untuk menananam tanamannya selain di lahan atau media tanah. Lahan yang membutuhkan luas yang besar memeberatkan petani yang tidak memiliki lahan dan beralih mencari media yang baru. Hidroponik merupakan salah satu sarana menanam tanpa menggunakan lahan yang luas dengan media air. Para petani sayur dapat bercocok tanam dengan lahan yang minim, namun dikarenakan lahan yang kecil petani hanya dapat panen sedikit selama 1 bulan. Pemeliharaan hidroponik juga tidaklah mudah ada beberapa factor untuk menjaga media tanam yaitu air agar memiliki nutrisi yang tepat. Faktor ini ada dua yaitu mengetahui PH air dan kepadatan mineral, logam dan garam pada air. PH air dapat diukur menggunakan PH meter dimana PH yang cocok pada tanaman adalah 7, sedangkan untuk mengetahui kepadatan pada media tanam adalah TDS meter. TDS meter berfungsi untuk mengatur berapa mineral, logam , dan garam dalam satuan PPM ( part per million ). Hal ini sangat perlu di jaga dalam pemeliharaan, jika PH dan kepadatan air tidak diperhatikan maka tanaman yang ditanam akan kekurangan nutrisi ataupun kelebihan nutris. Oleh karena itu dengan menggunakan sistem control jarak jauh dan sensor otomatis maka kendala tersebut dapat dihindari. Alat ini bertujuan agar tanaman dapat dijaga secara virtual ataupun jarak jauh. Kendali ini di tenagai oleh tenaga surya yang energi nya akan tersimpan di sebuah baterai. Beban yang digunakan terdapat 4 komponen yaitu PH meter, TDS meter, 2 motor DC dan LED. Alat ini dapat dikendalikan secara virtual melalui thinger.io platform IOT yang dapat memiliki kendali dan memonitor jumlah PH, jumlah kepadatan air, mengendalikan motor dc sebgai pompa, dan menyalakan LED.Kata kunci- TDS METER, PH, Solar panel, Hidroponik.ABSTRACTIn this modern era, many vegetable farmers are replacing and looking for better alternative planting media. Farmers are looking for an easy alternative to growing their crops other than on land or soil media. Land that requires a large area is burdensome for farmers who do not own land and turn to looking for new media. Hydroponics is a means of planting without using large areas of water as a medium. Vegetable farmers can grow crops with minimal land, but because the land is small farmers can only harvest a little for 1 month. Hydroponic maintenance is also easy, there are several factors to maintain planting, namely water to have the right nutrients. There are two factors, namely knowing the pH of the water and the density of minerals, metals and salts in the water. The pH of the air can be measured using a PH meter where the suitable PH for plants is 7, while the density of the growing media is the TDS meter. The TDS meter is used to control how many minerals, metals, and salts are in PPM (parts per million) units. This really needs to be done in maintenance, if the PH and air density are not considered, the plants to be planted will lack nutrients or have excess nutrients. Therefore, by using a remote control system and automatic sensors, these obstacles can be avoided. This tool is intended so that plants can be maintained virtually or remotely. This control is powered by solar energy whose energy will be stored in a battery. The load used has 4 components, namely PH meter, TDS meter, 2 DC motors and LED. This tool can be controlled virtually through the IOT thinger.io platform which can control and monitor the amount of PH, the amount of air density, control the dc motor as a pump, and LEDKeywords - TDS METER, PH, Solar panel, Hidroponik.
Empowering Traditional Education Institution Through the Implementation of Potable Water Provision System Rini Nur Hasanah; Ainul Hayat; Moh. Farid Rahman; Zainul Abidin; Hadi Suyono
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 4, No 2 (2021): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v4i2.2975

Abstract

The activity reported in this journal was aimed to empower the traditional education institutions commonly found and not formally financed by government of Indonesia. Empowering was carried out through the implementation of an action plan to ensure the potable water provision. Clean as well as potable water is indispensable for daily life and activities of students and teachers, especially those who were living and boarding in the school complex. The action was also potential to improve the financial independence of organization and to develop the entrepreneurship skills of students. The obtained tangible results of the action were in the form of production facility with ready-to-drink water quality of less than 10 ppm (parts per million) of total dissolved solids.
Analisis Turbin Darrieus Tipe V-Shaped Blade Untuk Aplikasi Konverter Energi Arus Laut Menggunakan Software QBlade Rizki Mendung Ariefianto; Rini Nur Hasanah; Wijono Wijono
Jurnal Kelautan Nasional Vol 17, No 2 (2022): AGUSTUS
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (717.647 KB) | DOI: 10.15578/jkn.v17i2.10842

Abstract

Turbin tipe Darrieus merupakan salah satu jenis turbin sumbu vertikal yang memiliki prospek menjanjikan dalam pengembangan turbin hidrokinetik, salah satunya dalam aplikasi untuk pembangkit arus laut. Berbagai penelitian telah dilakukan untuk meningkatkan performa turbin Darrieus yang pada umumnya memiliki performa efisiensi dan self-starting lebih rendah dibandingkan jenis turbin sumbu horisontal. Tujuan penelitian ini adalah untuk mengevaluasi performa turbin Darrieus yang ditinjau dari aspek efisiensi dan kemampuan self-starting. Skenario pengujian berupa penerapan bentuk foil dan blade swept angle (γ) pada desain turbin dipertimbangkan dalam penelitian ini. Pada evaluasi pengaruh bentuk foil, diterapkan foil NACA 634021 sebagai foil utama kemudian dibandingkan dengan foil lain seperti NACA 0018. Sedangkan evaluasi pengaruh blade swept angle, dipertimbangkan nilai γ = 30° agar menghasilkan turbin dengan bentuk V-shaped blade yang kemudian dibandingkan dengan turbin Straight blade dengan γ = 0°. Software QBlade digunakan untuk mensimulasikan turbin V-shaped blade selama kondisi kerja. Hasil simulasi menunjukkan bahwa turbin V-shaped blade yang berbasis foil NACA 634021 mampu mencapai efisiensi terbesar yaitu 0,425 dan memiliki self-starting yang baik pada cut-in speed arus laut sebesar 1,765 m/s. Selain itu, turbin ini juga mampu menghasilkan daya sebesar 27,64 kW pada kecepatan ratingnya dengan rata-rata peningkatan daya tiap 1 m/s arus laut sebesar 2,51 kW.
Prediction of Solar Radiation Intensity using Extreme Learning Machine Hadi Suyono; Hari Santoso; Rini Nur Hasanah; Unggul Wibawa; Ismail Musirin
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 2: November 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i2.pp691-698

Abstract

The generated energy capacity at a solar power plant depends on the availability of solar radiation. In some regions, solar radiation is not always available throughout the day, or even week, depending on the weather and climate in the area. To be able to produce energy optimally throughout the year, the availability of solar radiation needs to be predicted based on the weather and climate behavior data. Many methods have been so far used to predict the availability of solar radiation, either by mathematical approach, statistical probability, or even artificial intelligence-based methods. This paper describes a method of predicting the availability of solar radiation using the Extreme Learning Machine (ELM) method. It is based on the artificial intelligence methods and known to have a good prediction accuracy. To measure the performance of the ELM method, a conventional forecasting method using the Multiple Linear Regression (MLR) method has been used as a comparison. The implementation of both the ELM and MLR methods has been tested using the solar radiation data of the Basel City, Switzerland, which are available to public. Five years of data have been divided into training data and testing data for 6 case-studies considered. Root Mean Square Error (RMSE) and Mean Absolute Error (MAE) have been used as the parameters to measure the prediction results based on the actual data analysis. The results show that the obtained average values of RMSE and MAE by using the ELM method respectively are 122.45 W/m2 and 84.04 W/m2, while using the MLR method they are 141.18 W/m2 and 104.87 W/m2 respectively. It means that the ELM method proved to perform better than the MLR method, giving 15.29% better value of RMSE parameter and 24.79% better value of MAE parameter.
Co-Authors Abdi Pandu Kusuma Abdurrasyid Jahdan ABDURROHIM, MOHAMMAD SALMAN Achmad Basuki Achmad Yahya Chasanuddin Adi, Hari Purnomo Aditya Bagus Setyawan Aditya Dwi Putranto Adityara, Farrel Billy Ahmad Fajar Robiyanto Ahsein Jomaa Alshibani Ainul Hayat Akbar, Alif Aulia Al Fawwaz, Muhammad Ghozi Alief Aulia Pradika Wijaya Alief Nasruddin Allaam, Hisyam Ghozi Alsabah, Mus Ali Altajim, Fauzan Aiman Amir Fahmi Ananda, Andhika Dwi Andreyanto, Tegar Setyo Andrian Dwiputro Andy Surya Adi Angkasa, Aulia Anik Nur Handayani Ansyaruddin Rahmatdiansyah Anthony Wijoyo Ardiansyah, Muhammad Doni Ardiansyah, Rendy Ardiansyah, Rizky Ariefianto, Rizki Mendung Arif Resnu Putra Aripriharta - Ariq Kusuma Wardana Arizky Erwinsyah H. Armeyelia, Bulan Assariy, Muhammad Faiz Astuti, Khairina Noor Avrizal Riva Belan Ayob, Shahrin Md. Azmi, Azralmukmin Banu Hermawan Yuditya Basuki Winarno Basuki Winarno, Basuki Bernadus Blasio Arsoni Berry Bustan Bastian Bimo Ardiansyah Bobby Pratama Budiono Mismail Censa Widianing Mulya Baskara Chandra Wiharya Chandra, Aulia Adi Cita Rahiim Tama Claudio Bryllian Adam Z. Corina Martineac Danang Dwi Andaru Dandhi Tri Laksono David Suban Koten Derry Putranugraha Devanda Antonius Y. R. Dhofir, Mochammad Dicky Indratama Didik Rahadi Santoso Dimas Diar Aidi Ditza Pasca Irwangsa Dodit Suprianto Duta Narendratama Dzikrullah, Hafeeza Rinn Edypoerwa, Mugni Labib Edypoerwa, Mugni Labib Eka Maulana Eko Kuncoro Erwan Aryanto Erya Septy Dwi Wardhani Fadhil Ilma Fairuz Milkiy Kuswa Faiz Yusky Ahlian Fariz Aulia Rifqi Fauzi, Zulfa Anang Fianto, Aulia Ramadhan Fitra Rahmat Indyanto Frediawan Yuniar Galuh Prawestri Citra Handani Gatut Yulisusianto Goegoes Dwi Nusantoro Gwo-Jiun Horng Gymnastiar, Muhammad Ilham Habibah, Nisrina Rania Habriansyah Basta Nugraha Hadi Suyono Hadi Suyono Hadi Suyono Hadi Suyono Hadi Suyono Handani, Galuh Prawestri Citra Handari, Yosi Dwi Handoyono, Tito Tri Harfin Pratama Hari Santoso Hari Santoso Haris Altamira Harry Soekotjo Dachlan Hatorangan, Orlando Hazlie Mokhlis Hendrik Kenedy Tupan Heru Purnomo Hery Aprianto Hery Purnomo Hidayat, Ryan Mevi Hikam, Aldi Lutfil Himam, Fanisha Laila Himawan, Achmad Faisal I Nyoman Gde Wardana Ihza Aulia Rahman Ilham Ramadhan Maulana Imam Prakoso Indah Permata Sari Safti Indra Setyawan Irfan Aditya Primanto Irvan, Muh. 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