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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) Lontar Komputer: Jurnal Ilmiah Teknologi Informasi SOCA: Jurnal Sosial Ekonomi Pertanian Jurnal SPEKTRUM TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Teknik Elektro JURNAL NASIONAL TEKNIK ELEKTRO Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pengabdian Magister Pendidikan IPA Jurnal Gema Ngabdi Dielektrika : Jurnal Ilmiah Kajian Teori dan Aplikasi Teknik Elektro Jurnal Abdi Insani Journal of Classroom Action Research Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun Journal of Renewable Energy, Electrical, and Computer Engineering Jurnal Bakti Nusa Jurnal Karya Pengabdian Teknik Mesin Jurnal Pepadu Jurnal Pendidikan dan Pengabdian Masyarakat Jurnal Rekayasa elektrika
I Made Ginarsa
University Of Mataram
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Dynamic Stability Improvement of Multimachine Power Systems using ANFIS-based Power System Stabilizer Agung Budi Muljono; I Made Ginarsa; I Made Ari Nrartha
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 13, No 4: December 2015
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v13i4.2049

Abstract

Modern power system are very vurnerable to against load fluctuation during their operation. Load fluctuation identified as small disturbance is important to test dynamic (small signal) stability. This research is focused on improvement of multimachine dynamic stability by using ANFIS-based power system stabilizer (proposed PSS). ANFIS method is proposed because the ANFIS computation is more efective than Mamdani fuzzy computation. Simulation results show that the proposed PSS is able to maintain the dynamic stability by decreasing peak overshoot (Po) to the value -3,37´10-5 pu/pu and accelerating settling time (St) to the time 4.01 s for rotor speed deviation Machine-2. Also, the Po is decreased to the value -3,37´10-5 pu/pu and the St is accelerated to the time 3.98 s for rotor speed deviation Machine-3.
Perbaikan Stabilitas Dinamik Sistem Tenaga Terintegrasi Pembangkit Listrik Tenaga Mikro Hidro dan Diesel Menggunakan PSS Berbasis ANFIS I Made Ginarsa; I Made Ari Nrartha; Sultan Sultan; Agung Budi Muljono; Sabar Nababan
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 6 No. 2 (2020): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v6i2.197

Abstract

Power generating units should be built closed to load centers according to electric power company regulation. These units are generally small in capacity, so that makes power transfer among inter- and outer-areas is easier to be done. This study aims to improve dynamic stability of a Micro Hydro Power Plant (MHPP) on perspective of 5% load increased in Diesel Power Plant (DPP). The DPP is equipped by an ANFIS-based Power System Stabilizer (PSS) in this scheme. Two inputs with Gauss2mf membership function (MF) type and 5-number of the each MF are used to implement the ANFIS model. Simulation results show that overshoot of MHPP power angle deviation is reduced to the values of 0.023, 0.0138 and 0.0132°, for the DPP without PSS, conventional and ANFIS PSS, respectively.  Also, reduction in setting time is achieved at times >6, 4.051 and 3.553 s. It is shown that the ANFIS PSS is more effective to enhance the dynamic stability compared to other PSS
Aplikasi Fuzzy Type-2 PSS untuk Perbaikan Stabilitas Dinamik Pembangkit Listrik Tenaga Mikro Hidro dan Diesel: Application of Fuzzy Type-2 PSS to Improve Dynamic Stability of Micro Hydro and Diesel Power Plants I Made Ari Nrartha; I Made Ginarsa; Sultan Sultan; Agung Budi Muljono; Warindi Warindi
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 7 No. 2 (2021): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v7i2.272

Abstract

Teknologi fuzzy tipe 2 (FT2) berkembang sangat pesat dan memasuki bidang stabilitas sistem tenaga listrik. Pembangkit listrik tenaga mikro hidro (PLTMH) dan diesel (PLTD) riskan terhadap gangguan perubahan beban. Studi stabilitas penting dikerjakan untuk memastikan bahwa operasi PLTMH-PLTD tetap stabil ketika dan setelah beban berubah. Maka power system stabilizer (PSS) berbasis FT2 diusulkan untuk perbaikan stabilitas sistem tersebut. FT2PSS didesain dengan input kecepatan rotor dan derivatifnya. Outputnya adalah sinyal stabilitas yang diumpankan pada sistem eksitasi. Hasilnya, FT2PSS mampu mereduksi overshoot -0,035 deg. Sedangkan overshoot untuk CPSS adalah -0,051 deg. FT2PSS juga dapat mempersingkat settling time dan mempercepat steady state. Stabilitas PLTMH-PLTD yang dilengkapi dengan FT2PSS diperbaiki secara significan.
Aplikasi Pengukuran Tahanan Pentanahan Untuk Pengamanan Tegangan Sentuh Dan Pelatihan Teknik Instalasi Listrik Bagi Masyarakat Desa Semparu Kecamatan Kopang Kabupaten Lombok Tengah Agung Budi Muljono; I Made Ari Nrartha; Sultan Sultan; I Made Ginarsa; Sudi Mariyanto Al Sasongko
Jurnal Gema Ngabdi Vol. 1 No. 3 (2019): JURNAL GEMA NGABDI
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jgn.v1i3.18

Abstract

Electrical energy is one of the vital needs that cannot be separated from the needs of everyday life. In energy use, a protection in the electrical installation system is needed for safety related to electricity, among others, to avoid the danger of touch voltage. Protection intended in this electricity system is to provide a protection system to realize reliable and safe conditions, both for workers and the general public, in accordance with General Standard of Electrical Instalation PUIL 2011 and the Electricity Law of 2002. Activities are carried out in Semparu Village, Kopang District, Central Lombok Regency, through counseling, training and direct measurement of detainee detention. With the aim of providing installation techniques according to standards and grounding systems for security of installation of touch stresses that are harmful to human safety. Based on the results of the evaluation, the mean pretest score of 39.375 was 65.3 in the posttest mean or there was an increase in basic understanding and further participants by 72%. The results of the grounding resistance test at the village office in Semparu with the earth tester obtained a mean yield of 4.2 Ω with a post depth of 1.5 m with the wet soil type of the former rice field already in accordance with the PUIL 2011 standard which is smaller than 5 Ω
ANALISIS TEGANGAN LEBIH INDUKSI AKIBATMEDAN LISTRIK (E) DAN MEDAN MAGNET (H)PADA DUA BUAH TOWER YANG TERINJEKSI ARUS PETIR Ni Made Seniari; Aan Kurniawan; I Made Ginarsa
DIELEKTRIKA Vol 6 No 2 (2019): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (782.629 KB) | DOI: 10.29303/dielektrika.v6i2.204

Abstract

Sambaran petir dapat merusak objek yang disambar secara langsung maupun tidak langsung. Disekitar titik sambaran petir terinduksi medan listrik (E), medan magnet (H) dan tegangan induksi (Vind). Pada sebuah studi kasus, terdapat dua buah tower telekomunikasi yang bertempat di jalan Guru Bangkol, Pagesangan Timur, Kota Mataram yang diasumsikan tersambar petir secara langsung. Jarak antara kedua tower adalah 25 m dengan tinggi yang sama yaitu 40 m. Bangunan (objek) yang disambar tidak langsung yaitu salah satu rumah warga disekitar tower tersebut, dengan jarak dari tower 1= 5 m dan dari tower 2= 12 m. Parameter petir yang menyambar kedua tower, disimulasikan sebesar 392, 30, 18 kA dan 200, 100, 25 kHz. Simulasi menunjukkan bahwa dengan injeksi arus 18 kA dan frekuensi petir 200 kHz pada kedua tower, maka yang dirasakan objek dari tower 1 dan tower 2, masing-masing adalah medan listrik (E) = 358,119 dan144,489 kV/m, medan magnet (H)= 142,235 dan 57,386 A/m, dan tegangan induksi (Vind)= 5.391,454 dan 3.657,047 kV. Hasil simulasi dibandingkan dengan standar ICNIRP, dan IEC. Nilai medan listrik (E) dan tegangan induksi (Vind) berada diatas ambang batas yang diizinkan, sedangkan nilai medan magnet (H) masih berada dibawah ambang batas yang diizinkan.
Analisis Rugi Daya pada Penyulang dengan Pembangkit Energi Terbarukan akibat Ketidakseimbangan Beban Sultan .; I Made Ari Nrartha; I Made Ginarsa; Agung Budi Muljono
DIELEKTRIKA Vol 6 No 2 (2019): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (637.159 KB) | DOI: 10.29303/dielektrika.v6i2.214

Abstract

Abstract—Penetration of renewable energy generation is getting deeper due to reduced fossil fuel reserves and rising prices. Renewable energy generation enter in a three-phase distribution system which have unbalanced load. Three-phase power flow with unbalanced loads is used to analyze power loss in feeders with renewables generation in the system. A robust three phase power flow method for distribution networks is a backward-forward method. The results of the study on Hilbron feeders and Out 3 Gili feeders supplied from GH Senggigi, PLTS on three gilis, and Segara PLTM, that the load imbalance resulted in a power losses increase exponentially. The power loss percentage due to imbalance is 3.5%, 12.4%, and 26.7% for Hilbron feeders with Segara PLTM and Gili Air PLTS, Out 3 Gili feeders with PLTS on three gilis, and Hilbron feeders with Segara PLTM, respectively. Intisari—Penetrasi pembangkit energi terbarukan semakin dalam karena berkurangnya cadangan bahan bakar fosil dan naiknya harga bahan bakar tersebut. Pembangkitan energi terbarukan masuk dalam sistem distribusi tiga fase yang memiliki beban tidak seimbang.Aliran daya tiga fase dengan beban tidak seimbang digunakan untuk menganalisis kehilangan daya pada penyulang dengan pembangkitan energi terbarukan pada sistem. Metode aliran daya tiga fase yang kuat untuk jaringan distribusi adalah metode backward-forward. Hasil penelitian pada penyulang Hilbron dan penyulang Out 3 Gili yang disuplai dari GH Senggigi, PLTS pada tiga gilis, dan PLTM Segara, bahwa ketidakseimbangan beban mengakibatkan kerugian daya meningkat secara eksponensial. Persentase kehilangan daya karena ketidakseimbangan adalah 3,5%, 12,4%, dan 26,7% untuk penyulang Hilbron dengan PLTM Segara dan PLTS Gili Air, penyulang Out 3 Gili dengan PLTS pada tiga gili, dan penyulang Hilbron dengan PLTM Segara.
Analisis Unjuk Kerja High Voltage Direct Current (HVDC) Berbasis Voltage Source Converter (VSC) Saat Starting dan Hubung Singkat Rizal Ermiazis Kesuma; I Made Ginarsa; Sultan Sultan
DIELEKTRIKA Vol 6 No 2 (2019): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (657.348 KB) | DOI: 10.29303/dielektrika.v6i2.208

Abstract

Switching surge merupakan transien tegangan lebih yang serius pada transmisi tegangan tinggi. Kasus transmisi AC didapatkan dua atau tiga kali tegangan puncak normal sedangkan DC adalah 1,7 kalinya. Voltage Source Converter (VSC) yang mampu melakukan komutasi tanpa bergantung kondisi jala-jala, pengaturan daya aktif dan reaktif independen, serta black-start, menjadi alasan penelitian menggunakan teknologi ini. Penelitian ini melakukan analisis unjuk kerja High Voltage Direct Current (HVDC) berbasis VSC saat starting dan gangguan hubung singkat menggunakan model Matlab Simulink. Hasilnya saat starting ketika t=0 detik nilai arus DC 0 pu, dan naik selama 1 detik untuk menuju steady state yang bernilai 0,6 pu dengan nilai overshoot 0,731 pu. Pada gangguan satu fasa ke tanah dibutuhkan waktu 0,184 detik setelah terjadi gangguan untuk kembali ke keadaan steady state dan nilai overshoot 1,119 pu. Sedangkan gangguan tiga fasa ke tanah membutuhkan waktu 0,196 detik setelah gangguan untuk kembali ke keadaan steady state dengan nilai overshoot 1,262 pu.
ANALISIS RENCANA PEMASANGAN TRANSFORMATOR SISIPAN PADA SALURAN TRANSFORMATOR DISTRIBUSI PENYULANG PAGUTAN (Studi Kasus: Transformator Distribusi AM097 Di Jalan Banda Seraya, Pagesangan, Kota Mataram) NI Made Seniari; M. Najmul Fadli; I Made Ginarsa
DIELEKTRIKA Vol 7 No 1 (2020): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v7i1.226

Abstract

Data lapangan menunjukkan pembebanan Transformator Distribusi AM097 di Jalan Banda Seraya Pagutan, Kota Mataram, sudah overload sebesar 92,82%, tegangan pelanggan paling ujung bernilai 183,85 V, rugi daya saluran 15,87 kW. Drop tegangan mencapai 25,10% melebihi batas yang diizinkan dalam SPLN No.72 tahun 1987 dengan nilai maksimal 5%. Untuk memperbaiki kondisi jaringan maka dilakukan analisis rencana pemasangan transformator sisipan menggunakan simulasi ETAP. Dengan memperhatikan penempatan transformator sisipan pada jarak 313,18 m dari transformator utama, beban transformator utama 69,16%, transformator sisipan kapasitas 100 kVA dibebani 47,13%. Hasil simulasi menunjukkan tegangan di ujung beban 222,3 V, drop tegangan 3,16%, dan rugi daya saluran sebesar 4,16%.
ANALISIS TEGANGAN LEBIH INDUKSI DISEKITAR DOWN CONDUCTOR YANG TERINJEKSI ARUS PETIR (Studi Kasus Gedung STAHN GDE PUDJA MATARAM DAN GARDU HUBUNG GOMONG) I Wayan Sutrisna; Ni Made Seniari; I Made Ginarsa
DIELEKTRIKA Vol 4 No 1 (2017): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (300.401 KB)

Abstract

Petir merupakan peristiwa listrik alam yang sangat berbahaya dalam kehidupan. Sambaran petir dapat merusak objek yang disambar langsung maupun objek disekitar titik sambaran petir. Disekitar titik sambaran petir terinduksi medan listrik (E), medan magnet (H) dan tegangan lebih induksi (Vind). Objek di sekitar titik sambaran yang diamati Objek I dan Objek II adalah gedung kampus STAHN Gde Pudja Mataram dan Gardu Hubung Gomong, akibat gedung Rektorat STAHN Gde Pudja tersambar petir langsung 10, 50, 100 kA dan 25, 50, 100, 150, 200 kHz. Parameter petir tersebut menghasilkan E, H dan Vind pada objek yang diamati, dengan H sesuai standar, tetapi E dan Vind tidak sesuai standar. Rekomendasi untuk penurunan E dan Vind menambahkan SPP eksternal dengan pemasangan konduktor bentuk mesh sejumlah 2x4 mesh dengan ukuran 10x6,5 m pada kerangka plapon gedung. Injeksi 100 kA, 200 kHz pada rangkaian mesh tersebut menurunkan E, H dan Vind pada objek I dan objek II masing-masing 3,586 kV/m; 16,393 A/m; 344,459 kV dan 0,184 kV/m; 0,875A/m; 63,699 kV. Penambahan rangkaian konduktor mesh pada SPP eksternal tersebut dapat mengurangi nilai medan listrik (E), medan magnet (H) dan tegangan induksi (Vind) hingga 50 % dari nilai sebelumnya. ABSTRACT Lightning, an electrical event of nature, is a very dangerous phenomenon in daily life. Lightning strikes can harm both the object struck directly by lightning and the object around lightning strikes point. Object around the point of a lightning strike is induced by electric field (E), magnetic field (H) and overvoltage induction (Vind). Objects around lightning strike point observed in this paper objects one and two are STAHN Gde Pudja Mataram building and Gomong Substation circuit due to the fact that STAHN Gde Pudja Rectorate building was directly struck by lightning of 10, 50, 100 kA and 25, 50, 100, 150, 200 kHz. The lightning parameters showed the value of E, H and Vind on the observed. It is revealed that H value meets the standards while E and Vind values did not meet standards. In order to standardize the E and Vind values, it is recommended to add external SPP of 2x4 mesh with sized mesh of 10x6,5 m shaped conductor installation on framework ceiling. The Injection of 100 kA, 200 kHz from the mesh circuit decrease E, H and Vind value for the first and the second objects each 3.586 kV/m; 16.393 A/m; 344.459 kV and 0.184 kV/m; 0.875A/m; 63.699 kV. It can be conclude that the addition of mesh conductor circuit on the external SPP could reduce the value of the electric field (E), magnetic field (H) and the induced voltage (Vind) up to 50% of the initial value.
PENGUKURAN DAN SIMULASI PENGURANGAN HARMONISA DENGAN FILTER PASIF PADA SISTEM PLTS Agung Budi Muljono; I Made Ginarsa
DIELEKTRIKA Vol 6 No 2 (2019): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v6i2.209

Abstract

Power quality consists of several variables such as voltage, current, frequency, power factor, and harmonics. All of these variables must have good quality when operating so that electricity reaches consumers. Indonesia is a country that has two seasons namely the rainy season and the dry season so that the suitable renewable generating system is the photovoltaic system. The National Energy Council (DEN) has introduced, in 2025 the utilization of EBT is expected to increase from 5.7% to 23% in 2025. The photovoltaic system has an energy conversion process using an inverter which is a non-linear device that can generate harmonics which are usually denoted by Total Harmonic Distortion (THD). If harmonics continue to occur, the performance of the equipment or load will not have good performance when operating. In this research, measurements and simulations of harmonic reduction with a passive filter were taken, namely single tune filter on the photovoltaic On-Grid system. Measurements were made using a power quality measuring device namely 3 Phase Power and Harmonic Analyzer. The measurement results obtained by the value of THDi of 33.33% using linear and non-linear combined loads. After the measurement, a filter simulation was designed to reduce harmonics on order 3, 5, 7, 9, and 11. Simulation results after filter installation, harmonics which can be reduced by 20.55% in order 3 with parameters L = 0.200 mH and C = 2.95 uF . Based on the IEEE standard 512-1992 the harmonic value is in accordance with the permitted standard of 20%.
Co-Authors A. Dharma A. Ibi Weking Aan Kurniawan Abdul Natsir Adha, Farhan Adi Soeprijanto Agung Budi Muljono Agung Budi Mulyono Agung Budi Mulyono Ahmilurrizqi D, M. Alfandi, Ahmad Nova Anugerah, Fitra Arnawan Hasibuan Bagus Widhi Dharma Bagus Widhi Dharma S. Budi Darmawan Bulkis Kanata Desi Widianty DHARMA S, BAGUS WIDHI Eduarsa, Made Octa Faris, M Salman Firmansah, Danu Hadi A, Muh. Saihul Hamdi, Haidar Harjian, Muhammad Rivaldi I Ketut Wiryajati I Made Ari Nrartha I Made Ari Nratha I Made Budi Suksmadana I Made Budi Suksmadana I N Satya Kumara I Nyoman Wahyu Satiawan I Wayan Sutrisna I.B. Fery Citarsa Ida Ayu Sri Adnyani Karni, Wais Al Karyawan, I Dewa Made Alit Ketut Perdana Putra, I M. Najmul Fadli M. Widi Triyatno Made Sutha Yadnya Mahdi, Muh. Sultanul Mahendra, Aldi Aryanugraha Mauridhi Hery Purnomo Muhamad Tohri Mulijono, Agung Budi Muljono, Agung B Nababan, Sabar Natsir, Abdul Nawi Naufan Nada Ni Luh Sinar Ayu Ratna Dewi Ni Made Seniari NI Made Seniari Ni Made Seniari Ni Made Seniari Nrartha I Made Ari Osea Zebua Osea Zebua Osea Zebua Paniran Paniran Putra, I Ketut Perdana Ramdhani, Zainul Hadi Rangga Akbar Rizal Ermiazis Kesuma S, Bagus Widhi Dharma Sasongko, Sudi M. Al. Sasongko, Sudi Mariyato Al Sasongko, Sudi Maryanto Al Seniari, Ni Made Sudi Mariyanto Al Sasongko Sudi Mariyato Al Sasongko sultan Sultan . Sultan . Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Supriyatna Supriyatna Supriyatna Tohri, M. Triyatno, M. Widi Warindi D Widianty , Desi Zainuddin, Abdullah Zebua, Osea