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All Journal IPTEK Journal of Proceedings Series TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Jurnal Teknik Elektro Jurnal Teknologi Semesta Teknika Jurnal Teknik Elektro Journal of Electrical Technology UMY Emerging Science Journal BERDIKARI : Jurnal Inovasi dan Penerapan Ipteks Jurnal Intake : Jurnal Penelitian Ilmu Teknik dan Terapan JEEE-U (Journal of Electrical and Electronic Engineering-UMSIDA) Prosiding Seminar Nasional Program Pengabdian Masyarakat
Ramadoni Syahputra
Universitas Muhammadiyah Yogyakarta
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Mechanical Engineering Medicine & Pharmacology Social Sciences

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Model Power System Stabilizer Berbasis Neuro-Fuzzy Adaptif Ramadoni Syahputra, Agus Jamal ,
Jurnal Semesta Teknika Vol 14, No 2 (2011): NOVEMBER 2011
Publisher : Jurnal Semesta Teknika

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Abstract

Low frequency oscillations are detrimental to the goals of maximum power transfer and optimal power system security. A contemporary solution to this problem is the addition of power system stabilizers (PSS) to the automatic voltage regulators on the generators in the power system. For large scale power systems comprising of many interconnected machines, the PSS parameter tuning is a complex exercise due to the presence of several poorly damped modes of oscillation. The problem is further being complicated by continuous variation in power system operating conditions. This research proposes the PSS model based on adaptive neuro-fuzzy for designing robust power system stabilizers for a multi machine system. Simulations were carried out using several fault tests at transmission line on a Two-Area Multimachine Power System. Simulation is done by using Matlab-Simulink software. The result shows that power transfer response using the model is more robust than Delta w PSS, especially for single phase to ground fault.
Characteristic Test of Current Transformer Based EMTP Shoftware Syahputra, Ramadoni
Jurnal Teknik Elektro Vol 1, No 1 (2015): JTE-U
Publisher : Fakultas Teknik, Prodi Teknik Elektro

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Abstract

Pemodelan transformator arus merupakan salah satu cara yang praktis untuk mengevaluasi unjuk kerja perlengkapan proteksi. Pada makalah ini disajikan penggunaan perangkat lunak Electromagnetic Transients Program (EMTP), The Output Processor (TOP), dan Mathcad® untuk memodelkan transformator arus (CT) untuk mendapatkan kurva yang menunjukkan karakteristik transformator arus. Disajikan juga pengaruh beban terhadap faktor koreksi rasio dan faktor koreksi sudut fasa transformator arus.Dalam makalah ini transformator arus dimodelkan menggunakan EMTP untuk memvisualkan arus dan tegangan CT. Keluaran dari EMTP ditransfer ke dalam Mathcad melalui perangkat lunak TOP untuk menguji transformator arus terhadap keakuratan dan pengaruh bebannya. Model transformator arus yang dibahas adalah model CT 1200/5 kelas C800. Hasil simulasi menunjukkan bahwa untuk uji karakteristik dengan metode 9 titik memberikan hasil yang terbaik untuk menampilkan karakteristik CT. Hasil simulasi uji eksitasi CT menunjukkan bahwa error rasio maksimum yang terjadi adalah 0,09%. Hasil simulasi ini mengindikasikan bahwa transformator arus ini dapat digunakan dalam aplikasi pengukuran.
SIMULASI PENGENDALIAN TEMPERATUR PADA HEAT EXCHANGER MENGGUNAKAN TEKNIK NEURO-FUZZY ADAPTIF Syahputra, Ramadoni
Jurnal Teknologi Vol 8 No 2 (2015): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

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Abstract

Makalah ini menyajikan simulasi suhu penukar panas mengendalikan menggunakan teknik neuro-fuzzy. Heat exchanger merupakan proses yang sangat non-linear. Oleh karena itu, teknik prediksi non-linear diharapkan dapat menjadi solusi yang lebih baik dalam strategi kontrol prediktif. Suatu sistem kendali berbasis neuro-fuzzy adaptif prediktif dirancang untuk mengendalikan suatu plant yaitu heat exchanger yang sangat dinamis. Keuntungan penggunaan jaringan saraf dan logika fuzzy untuk pemodelan proses yang dipelajari dan prediktor berbasis neuro-fuzzy dirancang, dilatih dan diuji sebagai bagian dari kontroler prediktif. Dinamika plant diidentifikasi menggunakan jaringan neural tipe backpropagation. Selanjutnya strategi kontrol prediktif berdasarkan model neuro-fuzzy dari plant tersebut diterapkan untuk mencapai set-point titik output dari plant yang diharapkan. Simulasi dilakukan menggunakan perangkat-lunak aplikasi Matlab-Simulink. Hasil yang diperoleh menunjukkan efektivitas dan keunggulan dari pendekatan yang diusulkan.
Prediksi Beban Listrik Menggunakan Algoritma Jaringan Syaraf Tiruan Tipe Propagasi-Balik Syahputra, Ramadoni; Syahfitra, Febrian Dhimas; Putra, Karisma Trinanda; Soesanti, Indah
Semesta Teknika Vol 23, No 2 (2020): NOVEMBER 2020
Publisher : Semesta Teknika

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Abstract

Artikel ini mengusulkan prediksi beban puncak menggunakan metode jaringan syaraf tiruan tipe propagasi-balik. Prediksi beban puncak transformator tenaga merupakan tugas penting dalam mengantisipasi pertumbuhan beban listrik di masa mendatang. Prediksi yang tepat dan akurat akan memfasilitasi perencanaan kapasitas pembangkit listrik yang memadai pada waktu yang tepat. Metode jaringan syaraf tiruan tipe propagasi-balik memiliki akurasi yang baik dalam tugas-tugas prediksi. Pada penelitian ini dilakukan prediksi beban puncak pada dua buah transformator tenaga dengan studi kasus di Gardu Induk Bumiayu, Brebes, Jawa Tengah, Indonesia. Parameter pelatihan adalah data pertumbuhan penduduk, produk domestik regional bruto (PDRB), dan data beban puncak selama sepuluh tahun terakhir. Hasil penelitian menunjukkan bahwa kedua unit transformator tenaga tersebut masih dapat melayani beban listrik di wilayah pelayanan Gardu Induk Bumiayu selama sepuluh tahun ke depan.   This article proposes a peak load prediction using the backpropagation neural network method. Predicting the peak load of power transformers is an important task in anticipating load growth in the future. Precise and accurate predictions will facilitate the planning of sufficient power generation capacity at the right time. The backpropagation type neural network method has good accuracy in the prediction task. In this study, a case study was carried out by predicting the peak load of power transformers at Bumiayu Substation, Brebes, Central Java, Indonesia. Training parameters consists of population growth data, gross regional domestic product (GRDP), and peak load data for the last ten years. The results showed that the two power transformer units could still serve the electricity load in the Bumiayu substation service area for the next ten years.   
Analisis Indeks Keandalan Pembangkit Listrik Tenaga Hibrid Angin-Surya Menggunakan Metode EENS Syahputra, Ramadoni; Noor, Fahrian; Mujaahid, Faaris
Semesta Teknika Vol 23, No 1 (2020): MEI 2020
Publisher : Semesta Teknika

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Abstract

Pengembangan sumber energi terbarukan, terutama pembangkit listrik tenaga angin dan surya sangat penting di Indonesia. Hal ini disebabkan kedua jenis pembangkit tersebut dinilai paling potensial dan realistis untuk mendukung program pengembangan energi terbarukan di Indonesia. Dalam penelitian ini disajikan studi tentang indeks keandalan pembangkit listrik hibrid tenaga angin dan surya. Metode untuk menganalisis indeks keandalan adalah metode EENS (expected energy not supplied). Dalam penelitian ini dilakukan analisis lapangan pada pembangkit listrik yang telah beroperasi di Kabupaten Bantul Provinsi Daerah Istimewa Yogyakarta. Hasil penelitian menunjukkan bahwa nilai EENS masih belum memenuhi standar yaitu 0,002% per tahun. Studi yang dilakukan pada tahun 2019 ini menyimpulkan bahwa pembangkit listrik hibrid berbasis tenaga angin dan surya ini belum dapat diandalkan untuk mendukung ketersediaan energi listrik di wilayah Bantul.    The development of renewable energy sources, especially wind and solar power plants, is very important in Indonesia. This fact is because these two types of power plants are considered the most potential and realistic to support renewable energy development programs in Indonesia. In this research, a study on the reliability index of wind and solar-based power plants is presented. The method for analyzing the reliability index is the EENS (expected energy not supplied) method. This study conducted a field analysis on a power plant that has been operated in Bantul district, Yogyakarta Special Region province. The results of the study show that the EENS value still does not meet the standard, namely 0.002% per year. The study conducted in 2019 concluded that wind and solar-based hybrid power plants could not be relied on to support the availability of electrical energy in the Bantul area.     
Optimisasi Multi-objektif pada Rekonfigurasi Jaringan Distribusi Tenaga Listrik dengan Integrasi Pembangkit Terdistribusi Menggunakan Metode Sistem Kekebalan Buatan Syahputra, Ramadoni; Soesanti, Indah
Jurnal Teknik Elektro Vol 12, No 2 (2020): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jte.v12i2.26353

Abstract

This study proposes a multi-objective optimization for power distribution network reconfiguration by integrating distributed generators using an artificial immune system (AIS) method. The most effective and inexpensive technique in reducing power losses in distribution networks is optimizing the network reconfiguration. On the other hand, small to medium scale renewable energy power plant applications are growing rapidly. These power plants are operated on-grid to a distribution network, known as distributed generation (DG). The presence of DG in this distribution network poses new challenges in distribution network operations. In this study, the distribution network optimization was carried out using the AIS method. In optimization, the goal to be achieved is not only one objective but should be multiple objectives. Multi-objective optimization aims to reduce power losses, improve the voltage profile, and maintain a maintained network load balance. The AIS method has the advantage of fast convergence and avoids local minima. To test the superiority of the AIS method, the distribution network optimization with and without DG integration was carried out for the 33-bus and 71-bus models of the IEEE standard distribution networks. The results show that the AIS method can produce better system operating conditions than before the optimization. The parameters for the success of the optimization are minimal active power losses, suitable voltage profiles, and maintained load balance. This optimization has successfully increased the efficiency of the distribution network by an average of 0.61%.
Evaluation of Differential Protection in a Main Power Transformer: A Case Study in PT Pertamina Geothermal Energy Area of Kamojang Altama, Gady; Mustar, Muhamad Yusvin; Syahputra, Ramadoni; Prasetyo, Teguh Iman
Journal of Electrical Technology UMY Vol 3, No 2 (2019): June
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.3256

Abstract

The electric power system consists of various components, ranging from the components of generation, transmission, and distribution. The systems are quite expensive, so that excellent, reliable, and economic protection is needed to avoid internal and external faults.  The faults can trigger damage to components, especially on the main transformers in the Power Plant Geothermal Unit 4 of the Kamojang area managed by PT Pertamina Geothermal Energy. Disturbances that occur in the main transformers of various types so that the primary protection needed in the transformer is a differential relay to protect to avoid interference that occurs. This study discusses the comparison of theoretical differential relay calculation calculations with actual differential relay setting data in the Kamojang Unit 4 Geothermal Power Plant and simulates with ETAP 12.6 software. The problem that occurs in the main transformer of the Geothermal Power Unit Unit 4 Kamojang area is the difference in the slope 1 of the actual setting data with a mathematical calculation that is the actual setting data of 40% and the numerical calculation data worth 8.5%. Please note that the minimum slope one limit is 5%. PT Pertamina Geothermal Energy made slope one changes, so that differential relays are not too sensitive to the interference current that occurs within the protection zone of differential relays.
Estimation of Overhead Transmission Line Fault Distance Using Unsynchronized Two-Terminal Method Syahputra, Ramadoni; Soesanti, Indah
Journal of Electrical Technology UMY Vol 2, No 1 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.2130

Abstract

This paper presents the estimation of transmission line fault distance using unsynchronized two-terminal method. In operation, high or extra-high overhead voltage transmission lines can be interrupted. The disturbance can come from internal or external interference, which is permanent or temporary. For permanent interference, the network operator must visit the location of the disturbance in order to fix it. Because the transmission line is very long, while it takes quick time to find out the location of the disturbance so that it can be repaired immediately, then a method is needed to find out the location of the disturbance. This research proposes a method for determining the location of faults based on voltage and current data at the time of interference from both ends of the transmission line. The interference voltage and current data need not be synchronized. The use of this data makes this method very simple and easy to use. However, the accuracy of the estimation results can still be relied upon. In this study, a simulation was carried out on a two-end transmission line. The transmission line has a phase disturbance to the ground. The noise resistance applied in the simulation is 0 ohms, 10 ohms, 50 ohms, and 100 ohms. The results showed that the highest estimated error was 0.3%, which indicates that this method has a high degree of accuracy.
Potentials of Organic Waste Conversion in a Green Campus Concept Mujaahid, Faaris; Fauzi, Argi Mochamad; Syahputra, Ramadoni; Putra, Karisma Trinanda; Purwanto, Kunnu
Journal of Electrical Technology UMY Vol 1, No 4 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1424

Abstract

Development of waste-to-energy plant is regarded as one of a solution to reduce fossil energy dependency and switch to another alternative energy sources, thus needs to be implemented immediately. Research on the potential of organic waste by taking case studies at UMY green campus program can be an illustration that in the future UMY can process this potential into an alternative renewable energy. This research was conducted by studying waste management and data collection methods, such as field observations, discussions with related parties about the waste cycle, and calculations with the concept of gasification. Calculation of biomass produced by organic waste is then supplied to the motor generator for electricity production. Annually, 31.8 tons of organic waste could produce 7.9 kiloliters of biomass and channel it to the power plant system for generating electricity energy as much as 5.3 MWh per year. This number equals to the electricity supply of five small-housing in Indonesian typical house.
Coordination Analysis of Over Current Protection Using ETAP Software: A Case Study in PT Indocement Tunggal Prakarsa Tarjun, Kotabaru, South Kalimantan Setiawan, Aditiya; Syahputra, Ramadoni; Chamim, Anna Nur Nazilah; Jeckson, Jeckson
Journal of Electrical Technology UMY Vol 3, No 1 (2019): March
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.3151

Abstract

PT Indocement Tunggal Prakarsa Tarjun, Tbk Plant 12, is the largest cement company in Kalimantan. The growing industrial world in the field of cement that is very rapidly will significantly affect the speed of the economy. Thus the increase in the field of electricity will be more felt. PT Indocement Tunggal Prakarsa Plant 12, located in South Kalimantan, requires a reliable electrical system, both in terms of its power supply, in terms of backup of installed electrical systems, as well as safeguards that meet the electricity standards. In the short-circuit settlement is not desired, then the protection of the current relays more with proper coordination protection and reliable required. The coordination of the protection of the current relay is more necessary than the others in order to occur short circuit occurs in the field. No widespread damage occurred in its electricity and existing industrial equipment. To maintain the condition of the electric power system in optimum absence, a re-study of the coordination of current relational protection in PT Indocement Tunggal Prakarsa, Tbk Plant 12. This final project will discuss coordination analysis of overcurrent relay protection at PT. Indocement Tunggal Prakarsa, Tbk. In analyzing the coordination of overcurrent protection, then using several methods in a more coordinated way with coordination protection resetting using ETAP software. They are also resetting coordination protection overcurrent relays using manual calculations. After making the comparison, it can be seen as more current relay protection installed in the field. Some do not work well. It is pronounced in the work of existence, which does not match the standard ie, 0.2 - 0.35 seconds from the IEEE.
Co-Authors Agus Jamal Agus Jamal Ahdi Kurniawan Altama, Gady Andi Wahyu Nugroho Anna Nur Nazilah Chamim Anna Nur Nazilah Chamim Anna Nur Nazilah Chamim Anna Nur Nazilah Chamim Anna Nur Nazilah Chamim Aprilian, Salman Muntaqo Ardianta, Dimas Septe Arrozak, Loudy Fajar Danis Dwi Istiawan Dedy Prasetiyo Destria Yoga Ningrum Dwi Susanto Faaris Mujaahid Faaris Mujaahid Faaris Mujaahid Faaris Mujaahid, Faaris Fahrian Noor Fauzi, Argi Mochamad Febrian Dhimas Syahfitra Firdaus, Ilyas Eryansyah Gatot Supangkat Girindra Rosyadi Hedi Purwanto Hernawa Maulana Hidayat, Arief Rahman Imam Robandi Indah Soesanti Isnaini Muallidin iswanto iswanto Jamaaluddin Jeckson, Jeckson Jimmy Trio Putra Jusman, Yessi Karisma Trinanda Putra Karisma Trinanda Putra Karisma Trinanda Putra Karisma Trinanda Putra, Karisma Trinanda Khaidir Ali, Khaidir Khomarudin, Riki Kunnu Purwanto Kunnu Purwanto Kunnu Purwanto Kunnu Purwanto Kunnu Purwanto Mochamad Ashari Muhamad Yusvin Mustar Muhammad Heri Zulfiar Mustar, Muhamad Yusvin Mustika, Doane Puri Noor, Fahrian Oki Iwan Pambudi Pamungkas, Rizky Catur Peggy Irawan, Agil Prasetyo, Teguh Iman Purwanto, Kunnu Putra, Jimmy Trio Revi Muhammad Fasha Riki Khomarudin Ryan Permana Putra Setiawan, Aditiya Siregar, Rahmat Fauzi Subarkah, Yudha Agung Suripto, Slamet Syahfitra, Febrian Dhimas Taufiq Akbar Teguh Iman Prasetyo Teguh Iman Prasetyo Tony K Hariadi Widyasmoro, Widyasmoro Wiyagi, Rama Okta