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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) JURNAL NASIONAL TEKNIK ELEKTRO Proceeding of the Electrical Engineering Computer Science and Informatics Indonesian Journal of Electrical Engineering and Computer Science Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Andalasian International Journal of Applied Science, Engineering, and Technology Andalas Journal of Electrical and Electronic Engineering Technology Jurnal Andalas: Rekayasa dan Penerapan Teknologi ASEAN Marketing Journal Journal Of Artificial Intelligence And Software Engineering Jurnal INFOTEL Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering)
Refdinal Nazir
Universitas Andalas
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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The Camparison of Harmonic Distortion Self-Excited Induction Generator with Isolated Synchronous Generator under Non-linear Loads Refdinal Nazir; Krismadinata Krismadinata; Rizka Amalia
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 6, No 4: December 2015
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v6.i4.pp759-771

Abstract

In this paper, the harmonic distortion for Self-Excited Induction Generator (SEIG) and an isolated synchronous generator (ISG) under non-linear load during steady state conditions are analyzed. The voltage and current harmonics distortion for both generators are calculated using the transfer function method in frequency domain for SEIG and phasor diagram method for ISG. This analysis is done independently one by one component for all harmonic components appear. The analysis results for both generators are verified to the laboratory test results. For loading with the same non-linear load to both generators, the harmonics distortion on the stator windings of SEIG was smaller than compare ISG. In addition, the harmonic distortion effects on other loads connected to PCC point of SEIG was lower than the other loads connected to ISG.
Performance and Energy Saving Analysis of Grid Connected Photovoltaic in West Sumatera Syafii Ghazali; Refdinal Nazir
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 7, No 4: December 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v7.i4.pp1348-1354

Abstract

The paper presents performance and energy saving analysis of 1.25 kWp grid connected Photovoltaic system under difference weather condition in West Sumatera.  The measured data were performed during weather data that often occur in West Sumatra i.e. sunny, overcast, raining and cloudy. The synchronizing process successfully done even bad weather conditions when sunlight was low automatically. Photovoltaic in average start producing power from 7:00 AM to 6:00 PM for normal or clear sky, however under overcast, raining and cloudy weather, the PV power decreased and disconnected earlier before sunset. During intermittent raining, overcast and cloud covered the PV power output show an irregular profile. The PV energy saving performed for three residential connection cases: 1300 VA, 900 VA with subsidized and 900 VA without subsidized. The solar PV installation have more benefits and energy saving for 1300 VA, 900 VA without subsidized with payback period around 8.5 years. However, the 900 VA with subsidized take longer 20.8 years, but still in PV lifespan 25 years. In the future, household subsidies may be reduced or eliminated, the solar energy will be viable alternative of energy resources when it can produce electricity at a cost equivalent to utility grid PLN rate. 
Differences in the impact of harmonic distortion due to the installation of electronic load controller in self-excited induction generator and synchronous generator Refdinal Nazir; Syafii Syafii; Andi Pawawoi; Fajril Akbar; Axel Doriza
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 10, No 1: March 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v10.i1.pp104-116

Abstract

In general, the application of Self-Excited Induction Generator (SEIG) or Synchronous Generator (SG) on the Stand-Alone Micro Hydel Power Plant (MHPP) is equipped with Electronic Load Controller (ELC) to control generator output during variations in consumer load. One type of ELC that is cheap and rigid developed today is the ELC, which is constructed by the uncontrolled bridge rectifier with DC Chopper. Based on the operational concept, basically this type of ELC can be implemented on both SEIG and SG, but both of these generators will have a different harmonic distortion effect on the output and its load. This paper examines the differences in the effects of harmonic distortions due to ELC installation on SEIG and SG. The initial stage of this study was to design the ELC developed. Then, the harmonic distortion response due to the installation of ELC on SEIG and SG is tested, which includes harmonic distortion in: stator current, PCC voltage, and consumer load current. THDI (Current Total Harmonic Distortion) stator current at SEIG with ELC has shown an average value smaller than the THD stator current in SG with ELC. Likewise, the THDV (Voltage Total Harmonic Distortion) value of PCC voltage and THDI value of the current consumer load on SEIG equipped with ELC has been shown to be smaller than the THDV value of PCC voltage and THDI value of the current consumer load on SG equipped with ELC. The effects of harmonic distortions due to the installation of ELCs that developed in this study on SEIG is still within the permitted limits, while on the SG, the harmonic distortion reduction is needed at the generator output.
Konsep Pengaturan Aliran Daya Untuk PLTS Tersambung Ke Sistem Grid Pada Rumah Tinggal Kiki Kananda; Refdinal Nazir
JURNAL NASIONAL TEKNIK ELEKTRO Vol 2 No 2: September 2013
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (637.346 KB) | DOI: 10.25077/jnte.v2n2.87.2013

Abstract

Utilization of renewable energy is a very important issue in the effort to reduce the use of fossil energy are depleting. Given that the largest user of electrical energy is managed by the household sector PLN to 41.21% of the total electrical energy supplied by PLN. For that,  solar energy is one renewable energy as a convenient alternative to the provision of residential electricity in Indonesia, with a building of solar power generation. For area  available grid (on grid), the use of PLTS through SHS can not be developed because the price of electrical energy more expensive than PLN’s electricity. With solar technology connected to the grid (grid), battery usage can be reduced. This paper proposes a concept of power flow between the solar arrangement, PLN grid and load. Expenses connected with solar systems and grid use the same energy to that supplied by solar power within a specified period. In this case, the grid into storage or temporary lender to meet the load demand. So the application of this concept we only pay costs of the solar system without battery and the cost of leased lines in homes with solar systems. The discussion in this paper includes a series of modeling, modeling with MATLAB and Simulation of the proposed concept.Keyword : PV system, grid, simulink  AbstrakPemanfaatan energy terbarukan merupakan isu yang sangat penting dalam upaya untuk mengurangi penggunaan energy fossil yang makin menipis. Mengingat pengguna terbesar energi listrik yang dikelola oleh PLN adalah sektor rumah tangga hingga 41.21% dari total energi listrik yang disediakan oleh PLN. Untuk itu energi solar merupakan salah satu energi terbarukan sebagai alternatif yang mudah digunakan untuk penyediaan listrik rumah tinggal di Indonesia, dengan membangun pembangkit tenaga surya.Untuk daerah yang tersedia jaringan listrik (on Grid), penggunaan PLTS melalui  SHS tidak dapat dikembangkan karena harga energi listriknya lebih mahal dari listrik PLN. Dengan teknologi PLTS tersambung ke grid (jaringan PLN), penggunaan baterai pun dapat dikurangi. Paper ini mengajukan suatu konsep pengaturan aliran daya antara PLTS, grid PLN dan beban. Beban yang tersambung dengan sistem PLTS dan grid  menggunakan energy yang sama dengan yang disalurkan oleh PLTS dalam jangka waktu tertentu. Dalam hal ini, grid menjadi penyimpan atau pemberi pinjaman sementara untuk pemenuhan permintaan beban. Sehingga dengan penerapan  konsep ini kita hanya mengeluarkan biaya investasi dari sistem PLTS tanpa baterai dan biaya sewa jaringan di sistem rumah tinggal  dengan PLTS. Pembahasan dalam paper ini meliputi rangkaian pemodelan, pemodelan dengan MATLAB dan Simulasi dari konsep yang diajukan. Keyword : PV system, grid, simulink  
Analisa Proses Charging Akumulator Pada Prototipe Turbin Angin Sumbu Horizontal Di Pantai Purus Padang Melda Latif; Refdinal Nazir; Hamdi Reza
JURNAL NASIONAL TEKNIK ELEKTRO Vol 2 No 1: Maret 2013
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1050.42 KB) | DOI: 10.25077/jnte.v2n1.91.2013

Abstract

Tenaga listrik merupakan kebutuhan vital untuk pembangunan ekonomi dan pembangunan sosial. Hampir semua aktifitas sehari-hari dan perindustrian tidak lepas dari penggunaan tenaga listrik. Akan tetapi tidak semua daerah bisa menikmati energi listrik karena keterbatasan jangkauan sumber energi listrik oleh Pembangkit Listrik Negara (PLN). Karena tidak semua daerah menerima pasokan listrik PLN, maka kita bisa mendapatkan energi listrik dari energi angin yang merupakan energi terbarukan dan ramah lingkungan. Energi listrik  yang berasal dari turbin angin sumbu horizontal disimpan di akumulator (baterai). Akumulator merupakan sumber energi listrik portable yang bisa digunakan dimana saja dan kapan saja. Energi listrik pada akumulator juga bisa habis jika digunakan terus menerus dan bisa diisi (charging) kembali dengan input listrik DC yang berasal dari sistem konversi energi angin. Output dari turbin angin sumbu horizontal ini adalah tegangan AC 3 fasa. Dalam penelitian ini digunakan transformator, rectifier, dan dioda sebelum diteruskan ke akumulator. Turbin angin sumbu horizontal dipasang di daerah pantai Purus Padang. Dari hasil penelitian didapatkan bahwa alat dan rangkaian yang dirancang bisa melakukan proses charging dengan kecepatan angin minimum yang diperlukan untuk menghasilkan tegangan output 12 Volt DC adalah 4,5 m/s atau dengan kecepatan putar generator turbin angin sebesar 450 rpm.Kata kunci: energi terbarukan, angin, turbin angin sumbu horizontal, akumulator, transformator, rectifier, dioda
Optimalisasi Desain Sistem Pembangkit Listrik Tenaga Hybrid Diesel Generator - Photovoltaic Array Menggunakan Homer (Studi Kasus : Desa Sirilogui, Kabupaten Kepulauan Mentawai) Dewi Purnama Sari; Refdinal Nazir
JURNAL NASIONAL TEKNIK ELEKTRO Vol 4 No 1: Maret 2015
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1476.302 KB) | DOI: 10.25077/jnte.v4n1.104.2015

Abstract

Pembangkit Listrik Tenaga Hybrid merupakan salah satu solusi untuk mengatasi kekurangan pasokan listrik di daerah tertinggal dan terisolir yang tidak terjangkau oleh jaringan listrik PLN, dikarenakan daerah tertinggal pada umumnya memiliki letak geografi dan topografi yang tidak memungkinkan adanya perluasan jaringan listrik PLN. Integrasi dua pembangkit listrik yaitu pembangkit listrik tenaga konvensional (diesel generator) yang bersumber dari bahan bakar minyak (BBM) dengan pembangkit listrik yang bersumber dari energi terbarukan (photovoltaic array) merupakan suatu solusi yang menguntungkan untuk memenuhi kebutuhan beban listrik harian di daerah terpencil seperti Desa Sirilogui yang terletak di Kecamatan Siberut Utara Kabupaten Kepulauan Mentawai, karena dengan integrasi diesel generator-photovoltaic array ini dapat memberikan solusi penerangan 24 jam bagi 310 kepala keluarga (KK) di Desa Sirilogui yang pada mulanya hanya menikmati penerangan selama 4 jam, itupun hanya di malam hari yaitu dari pukul 18.00-22.00 WIB yang bersumber dari 3 unit diesel generator. Dengan adanya integrasi dua pembangkit listrik ini, pengoperasian diesel generator dapat diminimalisir sehingga menghemat pemakaian BBM dan mengurangi emisi CO2 yang ditimbulkan akibat pengoperasian diesel generator. Penelitian ini memfokuskan pembahasan mengenai Optimalisasi Desain Sistem Pembangkit Listrik Tenaga Hybrid Diesel Generator-Photovoltaic Array dengan menggunakan HOMER sebagai alat bantu simulasinya. HOMER merupakan perangkat lunak yang dipergunakan untuk membantu menyederhanakan tugas modeler dalam mengevaluasi desain sistem pembangkit listrik tenaga hybrid yang memungkinkan dengan mengurutkan berdasarkan pada total net present cost (TNPC) terendah untuk mendapatkan sistem yang paling optimal. Pada penelitian ini, hasil desain untuk sistem dengan beban listrik harian sebesar 479,280 kWh yang paling optimal berdasarkan hasil simulasi menggunakan HOMER yaitu photovoltaic berkapasitas 65 kW, 3 unit diesel generator masing-masing berkapasitas 15 kW, 156 unit battery dan bidirectional converter berkapasitas 78 kW dengan TNPC sebesar $ 1.362.474 dan cost of energy (COE) sebesar 1,485 $/kWh. Sistem Pembangkit Listrik Tenaga Hybrid Diesel Generator-Photovoltaic Array diusulkan dapat mengurangi emisi CO2 0,06% per tahun dibandingkan dengan penggunaan diesel generator saja.           Kata Kunci: Pembangkit Listrik Tenaga Hybrid, Diesel Generator, Photovoltaic Array, HOMER, Optimalisasi, TNPC Abstract—Hybrid Power Plant is one of the solutions to overcome the shortage of electricity in underdeveloped and isolated areas not covered by PLN electricity network, due to underdeveloped regions generally have the geography and topography that does not allow for expansion of PLN electricity network. Integration of the two power plants is a conventional power plant (diesel generator) that comes from fuel oil (BBM) with power plants sourced from renewable energy (photovoltaic arrays) is an advantageous solution to meet the needs of daily electricity load in remote areas such as the Village Sirilogui located in the District of North Siberut Mentawai Islands, because the integration of photovoltaic arrays diesel generator can provide 24 hour lighting solution for 310 households (families) in the village Sirilogui which at first only enjoy the lighting for 4 hours, and even then only at night days, from 06.00 to 10.00 pm o'clock sourced from 3 units of diesel generator. With the integration of these two power plants, diesel generator operation can be minimized so it saves fuel consumption and reduce CO2 emissions caused by the operation of the diesel generator. This study focuses the discussion on Design Optimization of Hybrid Power Plant System Diesel Generator-Photovoltaic Array by using HOMER as a tool for simulation. HOMER software is used to help simplify the task of the modeler in evaluating the design of hybrid power plant system that allows to sort based on the total net present cost (TNPC), the lowest for the most optimal system. In this study, the results of the design for the system with the daily electricity load of 479,280 kWh most optimal based on the simulation results using HOMER ie photovoltaic capacity of 65 kW, 3 units of diesel generators with a capacity of each 15 kW, 156 units of battery and bidirectional converter with a capacity of 78 kW TNPC amounted to $ 1.362.474 and the cost of energy (COE) of $ 1,485/kWh. Hybrid Power Plant System Diesel Generator-Photovoltaic Array proposed can reduce CO2 emissions by 0,06% per year compared with the use of diesel generators only.Keywords: Hybrid Power Plant, Diesel Generator, Photovoltaic Array, HOMER, Optimization, TNPC  
Analisis Mode Sistem Pembangkit Listrik Tenaga Hibrid Microhydro - Photovoltaic Array Menggunakan Homer (Studi Kasus : Kampung Bayang Janiah, Kabupaten Pesisir Selatan) Novi Kurniasih; Refdinal Nazir
JURNAL NASIONAL TEKNIK ELEKTRO Vol 4 No 1: Maret 2015
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1353.57 KB) | DOI: 10.25077/jnte.v4n1.114.2015

Abstract

Dalam penelitian ini membahas tentang optimisasi desain dan analisis ekonomi teknik dari Pembangkit Listrik Tenaga Hibrid Off-Grid Microhydro-Photovoltaic Array dengan menggunakan bantuan perangkat lunak HOMER 2 versi 2.81. Pemanfaatan sistem Pembangkit Listrik Tenaga Hibrid (PLTH) dapat mengatasi permasalahan kelistrikan di Kampung Bayang Janiah, Nagari Koto Ranah, Kecamatan Bayang Utara, Kabupaten Pesisir Selatan yaitu jauh dari jangkauan jaringan listrik PLN dan dapat meningkatkan keandalan secara ekonomis dimana awalnya listrik beroperasi hanya 12 jam/hari yang bersumber dari PLTMH saja, dapat ditingkatkan menjadi beroperasi penuh selama 24 jam/hari. Dari analisa yang telah dilakukan, diperoleh ketersediaan debit bulanan air sungai Bayang Janiah dengan menggunakan metode    F. J. Mock yaitu debit andalan 90% sebesar 102 L/s dengan head efektif 14 m mampu menggerakkan hydro turbine sehingga menghasilkan daya sekitar 11,3 kW. Sementara itu, untuk sistem photovoltaic array menghasilkan daya sebesar 8,4 kW dengan jumlah modul surya sebanyak 84 modul dan jumlah battery 6 V 1.091 Ah yang dibutuhkan sebanyak 8 unit serta bidirectional converter dengan total kapasitas sebesar 10 kW, berjumlah 2 unit. Hasil simulasi HOMER menunjukkan bahwa penentuan konfigurasi desain sistem PLTH yang paling optimal untuk diterapkan di Kampung Bayang Janiah berdasarkan Total NPC terendah adalah integrasi antara microhydro-photovoltaic array-battery bank-bidirectional converter. Pada konfigurasi sistem yang optimal tersebut, kontribusi microhydro sebesar 78.945 kWh/yr, photovoltaic array sebesar 11.404 kWh/yr, dengan Total NPC sebesar $ 146.041, Levelized COE sebesar $ 0,525/kWh, sedangkan untuk konsumsi energi listrik per tahun sebesar 30.668 kWh dan memiliki kelebihan energinya sebesar 59.608 kWh/yr, sehingga dapat memenuhi kebutuhan listrik rumah tangga sebanyak 56 kk termasuk juga sarana sosial yang ada di kampung tersebut.Kata Kunci: PLTH Off-Grid Microhydro-Photovoltaic Array, Optimisasi Desain, Simulasi, HOMER, Total NPC, Levelized COE Abstract—In this study discusses the optimization of the design and analysis of engineering economics Hybrid Power Plant Off-Grid Microhydro - Photovoltaic Array with the help of software HOMER 2 version 2.81. Utilization of Hybrid Power Plant System can overcome the electrical problems in Bayang Janiah village, Nagari Koto Ranah, Bayang Utara Subdistrict, Pesisir Selatan District that is far from the reach of the grid and can improve the reliability of electricity economically in which initially operated only 12 hours/day sourced from microhydro power plant only, can be upgraded to full operation       24 hours/day. From the analysis that has been conducted, obtained monthly discharge of Bayang Janiah river availability using dependable discharge F. J. Mock 90% of 102 L/s to 14 m of effective head is able to move the hydro turbine to produce power of about 11,3 kW. Meanwhile, for an array of photovoltaic systems produce power equal to 8.4 kW with a number of solar modules by 84 modules and the number of battery 6 V 1.091 Ah required 8 units and a bidirectional converter with a total capacity of 10 kW, totaling 2 units. HOMER simulation results show that the determination of the configuration of the hybrid power plant system design most optimal for application in Bayang Janiah village lowest Total NPC is based on the integration between microhydro - photovoltaic array - battery bank - bidirectional converter. On the optimal system configuration, microhydro contribution of 78.945 kWh/yr, a photovoltaic array of  11.404 kWh/yr, with a Total NPC of $ 146.041, Levelized COE of $ 0,525/kWh, while the electrical energy consumption of 30.668 kWh per year and has excess energy of 59.608 kWh/yr, so it can meet the needs of household electricity to 56 households as well as social facilities in the village.Keywords: Off-Grid Hybrid Power System Microhydro-Photovoltaic Array, Optimization Design, Simulation, HOMER, Total NPC, Levelized COE 
Studi Penempatan Kapasitor Eksitasi Pada Generator Induksi Satu Fasa Rahmat Hidayat; Refdinal Nazir
JURNAL NASIONAL TEKNIK ELEKTRO Vol 4 No 2: September 2015
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (446.454 KB) | DOI: 10.25077/jnte.v4n2.116.2015

Abstract

Single phase induction motor can only operate as a single-phase self-excited induction generator (SPSEIG) when the rotor is rotated above synchronous speed, as well as auxiliary windings and / or main windings is connected capacitor excitation. This paper analyzes the influence of the placement of excitation capacitor on the performance of SPSEIG, which include: voltage and frequency generator. Computer simulation results compared with the results of laboratory testing to verify the accuracy of the models and methods of analysis are proposed. Based on test results and simulation, the use of two capacitors excitation coil mounted in the main and auxiliary windings produce best performance of voltage and frequency stability. The use of a capacitor excitation in the main windings  will cause relatively high  voltage drop when loaded.Keywords :SPSEIG,excitation capacitor,main windings, auxiliary windings, admitance matrixAbstrak—Motor induksi satu fasa hanya dapat beroperasi sebagai generator induksi satu fasa eksitasi sendiri (SPSEIG) jika rotornya diputar diatas kecepatan sinkron, serta kumparan bantu dan/atau kumparan utama dihubungkan kapasitor eksitasi. Paper ini menganalisis pengaruh penempatan kapasitor eksitasi terhadap performansi dari SPSEIG, yang meliputi: tegangan dan frekuensi generator. Hasil simulasi komputer dibandingkan dengan hasil pengujian laboratorium untuk menguji keakuratan model dan metode analisis yang diajukan. Berdasarkan hasil pengujian dan simulasi, penggunaan dua buah kapasitor eksitasi yang dipasang di kumparan utama dan kumparan bantu menghasilkan performansi paling baik dari kestabilan  tegangan dan frekuensi. Penggunaan satu kapasitor eksitasi di kumparan utama akan menyebabkan drop tegangan relatif lebih besar ketika dibebani.           Kata Kunci :SPSEIG, kapasitor eksitasi, kumparan utama, kumparan bantu, matrik admitansi    
Pemodelan dan Simulasi Beban Non-Linier 3-Fasa dengan Metoda Sumber Arus Harmonik Rizka Amalia; Refdinal Nazir
JURNAL NASIONAL TEKNIK ELEKTRO Vol 4 No 2: September 2015
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (824.592 KB) | DOI: 10.25077/jnte.v4n2.154.2015

Abstract

The fast technological development in electronics fields leads to the increasing use of non-linear loads in households, offices, industry, or other fields. Harmonic caused by non-linear loads are very unique, which means that each non-linear load produces different nature a characteristcs of the resulting harmonic. Usually, non-linier loads have so complicated equivalent circuit that it is more difficult to describe the nature and characteristic of each non-linier load. Therefore, in order to make the study easier, modeling approach of non-linier loads is needed so that it makes it easier to see the nature and characteristics of them. In this approach, harmonic current wave is used as the base to make simulation model of non-linear load using current source in SIMULINK MATLAB. By using the concept of phase shifted and phase sequences current source are connected in parallel in which each current source represent one harmonic order. From simulation, it is found out that the result is approximately the same as that of laboratory test. The harmonic current wave is the same at phase a, phase b, and phase c, with 120 º shift.  Keywords : Self Excited Induction Generator (SEIG), Non-linear load, Harmonic, Total Harmonic  Distortion (THD).Abstrak— Perkembangan teknologi dibidang elektronika yang sangat pesat menyebabkan meningkatnya penggunaan beban non-linier, baik di rumah tangga, perkantoran, industi atau bidang lainnya. Harmonisa yang ditimbulkan beban non-linier sangat unik, artinya setiap beban non-linier berbeda sifat dan karakteristik harmonisa yang dihasilkannya. Biasanya beban non-linier memiliki rangkaian ekivalen yang lebih rumit, sehingga lebih sulit di jabarkan untuk tujuan melihat sifat dan karakteristik masing-masing beban non-linier.  Oleh Karena itu dibutuhkan kajian pemodelan beban non-linier untuk mempermudah melihat sifat dan karakteristiknya. Pada kajian ini data arus harmonisa menjadi dasar pembuatan model simulasi beban non-linier menggunakan sumber arus pada simulink MATLAB. Dengan menggunakan aturan beda fasa dan urutan fasa sumber arus dirangkai secara paralel, dimana setiap sumber arus mewakili satu orde harmonisa. Dari simulasi yang dilakukan didapatkan hasil yang  mendekati  hasil pengujian di laboratorium. Gelombang arus harmonisa sama pada fasa a, fasa b dan fasa c hanya saja bergeser  120º.Kata Kunci : Generator Induksi Penguatan Sendiri (GIPS), Beban Nonlinier, Harmonisa,Total Harmonic Distortion (THD).     
Efek Pengintegrasian Pembangkit Listrik Tersebar pada Jaringan Distribusi Radial terhadap Perosotan Tegangan Eka Fitrianto; Refdinal Nazir
JURNAL NASIONAL TEKNIK ELEKTRO Vol 5 No 1: Maret 2016
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (726.278 KB) | DOI: 10.25077/jnte.v5n1.157.2016

Abstract

Electrical systems supplied from a substation (GI) which is quite far away from the center of the furthest load will cause a voltage drop in radial distribution network. Integration of distributed generation (Distributed Generation, DG) on the distribution network will be one of the solutions to improve the voltage drop. This paper analyzes integrating several distributed generation (DG) in a radial distribution network to repair a voltage with Matlab program. Method using flow injection analysis of load and DG on each bus. The analysis showed that the penetration of DG on the distribution network will improve bus voltage, especially at bus adjacent to the DG.Keywords: distributed generation (DG), radial distribution, voltage drop, integration.Abstrak— Pada sistem distribusi radial 20 kV yang suplainya dipasok oleh Gardu Induk (GI) dalam jarak yang cukup jauh dari pusat beban akan menyebabkan terjadinya penurunan tegangan. Pengintegrasian pembangkit tersebar (Distributed Generation, DG) pada jaringan distribusi tersebut akan menjadi salah satu solusi untuk memperbaiki penurunan tegangan tersebut.  Tulisan ini menganalisis pengintegrasian beberapa pembangkit listrik tersebar (DG) pada suatu jaringan distribusi radial terhadap perbaikan tegangan dengan program Matlab.  Metoda analisis menggunakan arus injeksi dari beban dan DG pada setiap bus. Hasil analisis menunjukkan bahwa penetrasi DG pada jaringan distribusi akan memperbaiki tegangan bus terutama pada bus yang berdekatan dengan DG.Kata Kunci : Pembangkit  listrik  tersebar(DG), distribusi radial,  perosotan tegangan, Arus injeksi.
Co-Authors ,, Kamsory Adytia Putra, Ryan Ahmad Ahmad Alfitman Alfitman Alfitman Alfitman Amalia, Rizka Andi Pawawoi Andi Pawowoi Arief Rufiyanto Asnil Asnil Axel Doriza Dewi Purnama Sari Diana, Mery Eka Fitrianto Eka Fitrianto Eka Fitrianto Eka Fitrianto, Eka Elsi Alfionita Syawal Fajril Akbar Fitrianto, Eka Gellysa Urva Ghazali, Syafii Hamdi Reza Hasmat Malik Hidayat, Rahmat Kamsory , Kamsory Kamsory, Kamsory Kananda, Kiki Kiki Kananda Krismadinata Krismadinata, Krismadinata Kurniasih, Novi M. Yogi Riyantama Isjoni Melda Latif Melda Latif Mery Diana Mochammad Rismansyah Muhammad Hadi Putra, Muhammad Hadi Muhammad Imran Hamid Muhammad Nasir Muhammad Nurdin Muhammad Rahman Muharram, Igo Cikal Novi Kurniasih Pinto Anugrah Purnama Sari, Dewi Rahmat Hidayat Refki Budiman Reza, Hamdi Rika Ampuh Hadiguna Riska Amalia Rismansyah, Mochammad Rizka Amalia Rufiyanto, Arief Ryan Adytia Putra Saputra, Dendi Adi Syafii . Syafii Ghazali Vera Pujani Vera Pujani Wahyu Rizki Muslyadi Yazrina Yahya Yazrina Yahya Yudi Arfan Zuheldi Zuheldi Zuriman Anthony Zuriman Anthony