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1
Abidin, Zainal, and Abdul Hadi. "Analisis System Avarage Interruption Frequency Index dan System Average Interruption Duration Index Beroreantasi Pelanggan Pada Gangguan Jaringan Tegangan Rendah dan Menengah." INOVTEK - Seri Elektro 2, no. 2 (2020): 63. http://dx.doi.org/10.35314/ise.v2i2.1427.
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Nilai indeks parameter SAIFI dan SAIDI dipengaruhi oleh waktu keluar (pemadaman), waktu masuk (nyala) dan wama padam (durasi) yang dialami rata-rata pelanggan selama satu tahun. SAIFI dan SAIDI tahun 2019 sistem distribusi 20 kV PT. PLN (Persero) rayon bengkalis merupakan SAIFI dan SAIDI terbaik disemua gangguan SR & APP, SUTR dan SUTM jika dibandingkan SAIFI dan SAIDI tahun 2017 dan 2018. SAIFI = 0,998746 dan SAIDI = 0,169709 terendah tahun 2019 di SUTR, dan SAIFI = 4,142909 tertinggi tahun 2018 serta SAIDI = 3,642906 tahun 2017 di SR & APP. SAIDI tahun 2019 hasil perhitungan memenuhi standar (sistim handal) terhadap nilai Standar SPLN 68-2 : 1986 di SR & APP, SUTR , SUTM, dan terhadap nilai Standar IEEE Std 1366-2003 di SUTR dan SUTM. Persentase gangguan terbesar terjadi pada peralatan JTM = 46% dan layang-layang = 24%, yang mengakibatkan terhentinya pasokan energi listrik kekonsumen dengan berdampak padamnya feeder 4 = 28% dan feeder 3 = 26%
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Ajenikoko, Ganiyu Adedayo, and Ridwan Abiola Oladepo. "Impact of System Average Interruption Duration Index Threshold on the Reliability Assessment of Electrical Power Distribution Systems." International Journal of Electrical and Electronics Research 6, no. 2 (2018): 17–31. http://dx.doi.org/10.37391/ijeer.060203.
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System Average Interruption Duration Index (SAIDI) is one of the parametric indices used for assessment of the performance of electrical power network. It is the ratio of customers’ interruption duration to the total number of customers served. SAIDI threshold is used to determine the calendar days upon which either the system design limits or operational limits are exceeded. This research paper presents the impact of SAIDI threshold on the reliability assessment of electrical power distribution system. Data were collected from ten selected feeders of Ibadan distribution system for a period of five years. The daily SAIDI, natural logarithm of SAIDI, the log-average of SAIDI and the standard derivation of the logarithm of SAIDI were used as input parameters in the development of SAIDI threshold model. The result of the research paper shows that the SAIDI threshold values fluctuate over the years with the least and highest SAIDI threshold values as 2.11596 and 4.62518 respectively which were recorded in the months of September and April. The SAIDI thresholds in the months of January, February, March, April, May and June are 3.18318, 3.32458, 4.22242, 4.62518, 2.71360 and 3.27760 respectively suggesting an indefinite pattern in the SAIDI threshold as a result of unexpected interruptions experienced by customers attached to the distribution feeders. SAIDI threshold forms a basis for power system planning and maintenance strategies.
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Rizal, Syaipul, Zulfahri Zulfahri, and Usaha Situmeang. "Studi Optimalisasi Keandalan Jaringan Distribusi 13,8 kV pada Bangko Substation PT. Chevron Pacific Indonesia (CPI)." JURNAL TEKNIK 15, no. 1 (2021): 56–65. http://dx.doi.org/10.31849/teknik.v15i1.6215.
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Analisa keandalan sistem distribusi membutuhkan informasi yang akurat untuk menilai kinerja sistem, sehingga keandalan dapat ditingkatkan dengan maksimal dan keinginan pelanggan terpenuhi. Tingkat keandalan sistem distribusi dapat diukur dari sejauh mana penyaluran tenaga listrik dapat berlangsung secara kontiniu kepada pelanggan tanpa harus terjadi pemadaman. Saat ini, perhitungan keandalan sistem distribusi pada PT. CPI masih menggunakan perhitungan konvensional, sehingga akan sangat sulit untuk membandingkan keandalan sistem distribusi PT.CPI dengan industri lainnya karena tidak menggunakan standar perhitungan yang sama. Beberapa indeks yang sudah banyak digunakan untuk menghitung kinerja keandalan sistem tenaga listrik antara lain adalah System Average Interruption Duration Index (SAIDI), System Average Interruption Frequency Index (SAIFI), dan Costumer Average Interruption Duration Index (CAIDI). Pada tugas akhir ini akan dilakukan Studi Optimalisasi indeks keandalan penyulang # 1 Gardu Induk Bangko menggunakan pendekatan historical assessment dan predictive assessment dengan metode Reliability Index Assessment (RIA). Dari studi ini diketahui bahwa pada Tahun 2019, rata-rata indeks keandalan SAIDI adalah 6.9358 hour/costumer/year, SAIFI = 2,87 interruption/costumer/year dan CAIDI = 2,4166 hour/costumer interruption. Sedangkan untuk memperbaiki indeks keandalan menggunakan metode RIA, dari 5 opsi yang ditetapkan, diperoleh sistem ke 5 dapat menghasilkan penurunan yang optimal yaitu SAIDI = 13,8829 hour/costumer/year atau turun 57,0 % jika dibanding kondisi eksisting, SAIFI = 8,6537 interruption/costumer/year atau naik 0,5 % dibanding kondisi eksisting, dan CAIDI = 1,6043 hours/costumer interruption atau turun 57,7 % dibanding kondisi eksisting.adapun perkiraan Biaya Penambahan Peralatan untuk sistem ke 5 ini sebesar RP 1,182,150,000.00
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Paillin, Daniel B., and Galang Pradipta. "PENGARUH PENGGUNAAN SISTEM SCADA PADA KEANDALAN JARINGAN DISTRIBUSI PT. PLN AREA MASOHI." ARIKA 12, no. 1 (2018): 41–52. http://dx.doi.org/10.30598/arika.2018.12.1.41.
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Penelitian ini bertujuan untuk mengetahui pengaruh sebelum dan sesudah penggunanan system SCADA terhadap keandalan jaringan distribusi PT. PLN Wilayah Maluku dan Maluku Utara Area Masohi. Hasil penelitian menunjukan adanya peningkatan indeks keandalan setelah terintegrasi dengan sistem Supervisory Control And Data Acquisition (SCADA) dengan parameter indeks System Average Interruption Duration Index (SAIDI) sebesar 15,04 Jam/pelanggan dan System Average Interruption Frequency Index (SAIFI) sebesar 14,92 kali/pelanggan serta penghematan sebesar Rp 35.369.361
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Sugianto, Sugianto, and Asri Dewi Mustikasari. "PEMASANGAN AUTOMATIC CHANGE OVER (ACO) UNTUK MENINGKATKAN KEANDALAN PADA PELANGGAN PREMIUM." Jurnal Ilmu Teknik dan Komputer 3, no. 1 (2019): 57. http://dx.doi.org/10.22441/jitkom.2020.v3.i1.008.
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ABSTRACT Energi listrik memegang peranan yang sangat dominan dalam kehidupan masyarakat sehari-hari, sehingga jika terjadi pemadaman listrik akan menimbulkan kerugian. Guna mengurangi pemadaman maka diperlukan back up sumber tegangan untuk mensupply beban. Back up sumber tegangan dipasang parallel yang bekerja secara bergantian otomatis sebelum sebelum masuk ke beban yang disebut System Spot Network. System parallel dua sumber tegangan menggunkan suatu kubikel tegangan menengah yang disebut Automatic Change Over. Untuk mengetahui keandalan sebelum dan sesudah dipasang ACO maka ditetapkan suatu indeks keandalan yaitu SAIDI (System Average Interruption Duration Index) dan SAIFI (System Average Interruption Frequency Index). Setelah dipasang ACO tidak pernah mengalami pemadaman sehingga nilai perhitungan indeks SAIFI realisasi di lapangan sebelumnya adalah 0,05 pemadaman/tahun menjadi Nol. Begitu pula dengan perhitungan SAIDI realisasi di lapangan sebelumnya adalah 0,112 jam/tahun menjadi Nol
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Samudra, Hery, I. G. Dyana Arjana, and I. Wayan Artha Wijaya. "Studi Peningkatan Kualitas Pelayanan Penyulang Menggunakan Load Break Switch (LBS) Three Way." Majalah Ilmiah Teknologi Elektro 15, no. 1 (2016): 48. http://dx.doi.org/10.24843/mite.2016.v15i01p09.
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Pada sistem distribusi, kualitas keandalan dapat dilihat dari lamanya pemadaman atau SAIDI (System Average Interruption Duration Index) dan seberapa sering pemadaman terjadi dalam satuan waktu atau SAIFI (System Average Interruption Frequency Index). Sebuah upaya yang telah dilakukan oleh PT. PLN (persero) Distribusi Bali AJ Bali Selatan untuk mengurangi jumlah pelanggan padam saat terjadi gangguan yaitu dengan cara pemasangan LBS Three Way. Berdasarkan hasil perhitungan kualitas keandalan pada penyulang Gunung Agung setelah pemasangan LBS Three Way yaitu SAIFI sebesar 0.989688526 dan SAIDI sebesar 5.737530618, penyulang Imam Bonjol setelah pemasangan LBS Tree Way yaitu SAIFI sebesar 0.683913253 dan SAIDI sebesar 3.908243775. Hasil analisa pengaruh pemasangan LBS Three Way terhadp pelanggan DB0133 (United Overseas Bank) yaitu pelanggan pada DB133 tidak mengalami pemadaman apabila terjadi gangguan pada penyulang Gunung Agung karena pelanggan dapat dimanuver oleh penyulang Imam Bonjol. Berdasarkan perhitungan kemampuan manuver beban pada penyulang Gunung Agung dan Imam Bonjol dapat dikatakan penyulang Gunung Agung mampu memanuver beban seksi I dan III pada penyulang Imam Bonjol, dan penyulang Imam Bonjol mampu memanuver beban seksi III, IV dan V pada penyulang Gunung Agung. DOI: 10.24843/MITE.1501.09
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Makruf, Abdul, Rani Ilham, Bima Sakti, Erdin Syam, Muhammad Akbar, and Y. Yudistira. "Analisis Keandalan Sistem Distribusi 20 Kv dari Gi Tengkawang Pada Penyulang T4." Emitor: Jurnal Teknik Elektro 22, no. 2 (2022): 155–60. http://dx.doi.org/10.23917/emitor.v22i2.16770.
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Abstrak-.Listrik merupakan kebutuhan pokok manusia didalam menjalankan aktivitasnya sehari-hari. PLN merupakan perusahaan milik negara yang melayani kebutuhan listrik diindonesia. Semakin banyak industri dan perusahaan serta rumah tangga yang tumbuh dan berkembang, maka dibutuhkan tenaga listrik yang handal, murah dan ekonomis. Dengan demikian kebutuhan listrik tersebut membutuhkan pengembangan kapasitas pembangkit dan saluran transmisi atau distribusinya. Jarak antara pembangkit dan konsumen sangatlah jauh, hal ini dapat memicu terjadinya gangguan pada jaringan udara terbuka, gangguan ini dapat menyebabkan arus gangguan yang akan menggangu sistem distribusi, yang berakibatkan suatu sistem tidak bisa dikatakan handal.Untuk meningkatkan nilai keandalan yaitu dengan mengurangi frekuensi terjadinya gangguan dan dilakukan pemeliharaan secara preventif guna meningkatkan keandalan dari sistem distribusi. Agar dapat melihat keandalan dari sistem distribusi diperlukan perhitungan terhadap nilai SAIDI (System Average Interruption Duration Index) dan SAIFI (System Average Interruption Frequency Index) Kata kunci: Sistem Distribusi, Keandalan, Gangguan, SAIDI, SAIFI
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Jurnal, Redaksi Tim. "ANALISA NILAI SAIDI SAIFI SEBAGAI INDEKS KEANDALAN PENYEDIAAN TENAGA LISTRIK PADA PENYULANG CAHAYA PT. PLN (PERSERO) AREA CIPUTAT." Energi & Kelistrikan 10, no. 1 (2019): 70–77. http://dx.doi.org/10.33322/energi.v10i1.330.
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The demand for electricity will continues to increase each time, this is because of the number of PLN’s customers will continues too to grow each year. Therefore, this is directly proportional to growing the amount of electricity that have to be streamed. With the increasing of the number of PLN’s customers, the provider (PLN) have to increase the amount of electricity supply as well. In the era of globalization, the efficiency of electrical power has always been the main issued, both from the providers and the customers. Therefore, the realibility of distribution system of electrical power will been the main issued as well. The index that showing the reliability of the distribution system of electrical power is SAIDI (System Average Interruption Duration Index) and SAIFI (System Average Interuption Frequency Index). As small as the value of the indexes, both SAIDI and SAIFI is so the more reliable the system, which means the efficiency of the distribution system is good (high efficiency). In this research will be discussed about the analysis of SAIDI and SAIFI values of Cahaya feeder, as well as how to suppress the value of SAIDI and SAIFI. Realibilty index SAIDI and SAIFI on Cahaya Feeder in the year of 2017 is 2.277 hours/costumers/year dan 2.406 time/costumers/years. That is reliable based on SPLN 59:1985 standard. Cost loss in year of 2017 due to outage on the Cahaya Feeder is IDR 12,794,305,-
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Rusyda Roslan, Nur Nabihah, NoorFatin Farhanie Mohd Fauzi, and Mohd Ikhwan Muhammad Ridzuan. "Variance reduction technique in reliability evaluation for distribution system by using sequential Monte Carlo simulation." Bulletin of Electrical Engineering and Informatics 11, no. 6 (2022): 3061–68. http://dx.doi.org/10.11591/eei.v11i6.3950.
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This paper discusses the need for variance reduction in simulations in order to reduce the time required to compute a simulation. The large and complex network is commonly evaluated using a large-scale Monte Carlo simulation. Unfortunately, due to the different sizes of the network, it takes some time to complete a simulation. However, variance reduction techniques (VRT) can help to solve the issues. The effect of VRT changes the behaviors of a simulation, particularly the time required to run the simulation. To evaluate the reliability indices, two sequential Monte Carlo (SMC) methods are used. SMC with VRT and SMC without VRT are the two options. The presence of VRT in the simulation distinguishes the two simulations. Finally, reliability indices: system average interruption frequency index (SAIFI), system average interruption duration index (SAIDI), and customer average interruption duration index (CAIDI) will be calculated at the end of the simulation to determine the efficiency for the SMC with and without VRT. Overall, the SMC with VRT is more efficient because it is more convenient and saves time than the SMC without VRT.
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Peter, Geno, Albert Alexander Stonier, Punit Gupta, Daniel Gavilanes, Manuel Masias Vergara, and Jong Lung sin. "Smart Fault Monitoring and Normalizing of a Power Distribution System Using IoT." Energies 15, no. 21 (2022): 8206. http://dx.doi.org/10.3390/en15218206.
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Conventional outage management practices in distribution systems are tedious and complex due to the long time taken to locate the fault. Emerging smart technologies and various cloud services offered could be utilized and integrated into the power industry to enhance the overall process, especially in the fault monitoring and normalizing fields in distribution systems. This paper introduces smart fault monitoring and normalizing technologies in distribution systems by using one of the most popular cloud service platforms, the Microsoft Azure Internet of Things (IoT) Hub, together with some of the related services. A hardware prototype was constructed based on part of a real underground distribution system network, and the fault monitoring and normalizing techniques were integrated to form a system. Such a system with IoT integration effectively reduces the power outage experienced by customers in the healthy section of the faulted feeder from approximately 1 h to less than 5 min and is able to improve the System Average Interruption Duration Index (SAIDI) and System Average Interruption Frequency Index (SAIFI) in electric utility companies significantly.
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Al-Yami, Ibrahim M. "The Impact of Distributed Generators Placements on the Reliability of Typical Industrial Power Distribution System." Applied Mechanics and Materials 799-800 (October 2015): 1278–87. http://dx.doi.org/10.4028/www.scientific.net/amm.799-800.1278.
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Electrical Distribution systems that are radially configured with one utility power source are inherently exposed to higher rates of outages and interruptions, due to failures of system components, including: transformers, breakers and switching devices. In addition, fault conditions can also be caused by weather, animals or human error. Historically in Saudi Arabia, many industrial and residential distribution networks suffered from these problems. Large-size, growing demand and cost — with the time requirements for enhancement projects — results in distributed generation (DG) — as online or backup —playing a key role in the residential, commercial and industrial sectors of the power system. In this paper, the value of DG — installed as an online power source for typical industrial distribution network in Saudi Arabia — is quantified by reliability indices that include System Average Interruption Duration Index (SAIDI), Customer Average Interruption Duration Index (CAIDI) and Energy Not Supplied (ENS). The study outcomes will provide power system engineers with the reliability benefits of DG penetration and an approach to assessing its installations, based on different factors such as size and location.
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Khajeh Ahmad Attari, Sina, Mohammad Bakhshipour, Mahmoudreza Shakarami, and Farhad Namdari. "A Novel Method Based on Teaching-Learning-Based Optimization for Recloser Placement with Load Model Consideration in Distribution System." Indonesian Journal of Electrical Engineering and Computer Science 2, no. 1 (2016): 1. http://dx.doi.org/10.11591/ijeecs.v2.i1.pp1-10.
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<em>This paper proposed a novel technique based on teaching-learning-based optimization (TLBO) algorithm in order to find optimal placement of reclosers in the distribution networks which is applied to improve reliability. Reclosers use to eliminate transient faults, faults isolation, network management and enhance reliability to reduce customer outages. According to recloser role in network reliability, the cost for the installation and maintenance must be sustained by distribution companies. Therefore, selecting sufficient number and suitable location for reclosers are important issue. In this paper, the proposed objective function for optimal recloser number and placement has been formulated to improve three reliability indices which consists of three terms; i.e. System Average Interruption Frequency Index (SAIFI), System Average Interruption Duration Index (SAIDI) and Average Energy Not Supplied (AENS). Besides the load model effectiveness has been considered to the simulation. To verify the efficiency of proposed method, it has been conducted to IEEE 69-bus radial distribution system. The obtained simulation results demonstrate the reliability improvement.</em>
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Musthopa, Musthopa, Budi Harsanto, and Akhmad Yunani. "Usulan Model Pemeliharaan Distribusi Tenaga Listrik Menggunakan Metode TRDX Untuk Meningkatkan Keandalan Pada Pelanggan Industri." Operations Excellence Journal of Applied Industrial Engineering 13, no. 3 (2021): 342. http://dx.doi.org/10.22441/oe.2021.v13.i3.032.
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Reliability of electricity supply is urgently needed by modern industry because disruptions can directly impact production levels, costs and company profitability. The purpose of this study is to determine the characteristics of the existing maintenance of electric power distribution to industrial customers of PT PLN (Persero) UP3 Karawang and to propose appropriate maintenance methods to improve its performance. The method used is a case study with data collected through observation, interviews, and analysis of relevant documents. The results of the study indicate that the trend of feeder disturbances during 2017-2020 has not met expectations, the realization of the average interruption frequency index (SAIFI) system continues to increase in succession 3.12; 3.85; 5.47; and 6.92 times/customer, as well as the realization of the system average interruption duration index (SAIDI) with an increasing trend, respectively, 182.97; 314.31; 1015.55; and 612 minutes/customer. The three highest causes of disturbances were jointing (39%), followed by third party causes (36%) and cubicle damage (15%). The author proposes the TRDX method to improve the reliability of electric power supply to industrial customers.
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Chaves, Tiago Rabelo, Marcos Aurélio Izumida Martins, Kennedy Alves Martins, Amadeu Fernandes de Macedo, and Silvia de Francisci. "Application Study in the Field of Solutions for the Monitoring Distribution Transformers of the Overhead Power Grid." Energies 14, no. 19 (2021): 6072. http://dx.doi.org/10.3390/en14196072.
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This paper will present the development and application of overhead transformers of the distribution grid, as well as the different technologies used for the gathering of electrical quantities, in the field of a monitoring solution. The solution reports the values of the quantities and alarms of operation remotely and almost in real-time. The development of this solution seeks to provide an electrical grid with greater reliability, proposing the reduction of KPIs (Key Performance Indicator), such as SAIDI (System Average Interruption Duration Index) and SAIFI (System Average Interruption Frequency Index), through more transparent monitoring of the behavior of the electrical distribution grid and its equipment. Through the research and development (R&D) project Urban Futurability, ENEL (Ente nazionale per l’energia elettrica) Distribution São Paulo seeks to apply the solution by implementing the concept of smart grids, an idea that has been growing each year by virtue of technological developments and the employment of new sensors in electrical distribution grids. Urban Futurability seeks to innovate the automation area, digital twin, and construction enhancement in the Vila Olímpia neighborhood of São Paulo, Brazil.
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Kornatka, Mirosław, and Anna Gawlak. "An Analysis of the Operation of Distribution Networks Using Kernel Density Estimators." Energies 14, no. 21 (2021): 6984. http://dx.doi.org/10.3390/en14216984.
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Efficiency in the operation of distribution networks is one of the commonly recognised goals of the Smart Grid aspect. Novel approaches are needed to assess the level of energy loss and reliability in electricity distribution. Transmission of electricity in the power system is invariably accompanied by certain physical phenomena and random events causing losses. Identifying areas where excessive energy losses or excessive grid failure occur is a key element for energy companies in resource management. The study presented in the article is based on data obtained from distribution system operators concerning 41 distribution regions in Poland for a period of 5 years. The first part of the article presents an analysis of the distribution of values for the introduced energy density and energy losses in the lines of medium- and low-voltage networks and in transformers supplying the low-voltage network. The second part of the article presents the assessment of the network reliability of the same distribution regions based on analysis of the distributions of System Average Interruption Duration Index (SAIDI) and System Average Interruption Frequency Index (SAIFI) values for planned and unplanned outages. Data analysis is performed by non-parametric methods by means of kernel estimators.
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Wahyunitya S, I. N. Tidi, A. A. Gede Maharta Pemayun, and Antonius Ibi Weking. "ANALISIS PEMELIHARAAN SALURAN DISTRIBUSI 20 KV DALAM KEADAAN BERTEGANGAN DI RAYON KUTA." Jurnal SPEKTRUM 4, no. 1 (2017): 42. http://dx.doi.org/10.24843/spektrum.2017.v04.i01.p07.
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Pemadaman yang dilakukan untuk pekerjaan pemeliharaan, menyebabkan kerugian bagi konsumen dan PLN. Kerugian yang dialami adalah diskontinuitas pelayanan penyaluran energi listrik dan kWH yang diproduksi oleh PLN tidak dapat tersalurkan, maka dari itu perlu dilakukan pemeliharaan dalam keadaan bertegangan (PDKB). Sebelum melakukan pekerjaan bertegangan, perlu dilakukan studi kelayakan investasi peralatan bertegangan dari aspek ekonomis. Metode yang digunakan pada penelitian ini yaitu Net Present Value (NPV), Internal Rate Of Return (IRR) dan Net Benefit Cost Ratio (NET B/C), sehingga dapat diketahui besar nilai tingkat keuntungan melalui pemeliharaan bertegangan. Pemeliharaan dalam keadaan bertegangan (PDKB) di PT PLN (Persero) Rayon Kuta dapat menyelamatkan rupiah kWh sebesar Rp.8.941.763.694/ tahun. Sistem Average Interruption Duration Index (SAIDI) yang ditekan adalah 991,812243 menit/ pelanggan, untuk System Average Interruption Frequency Index (SAIFI) adalah 14.60000046 kali/ pelanggan, Net Present Value bernilai positif sebesar Rp.27.347.312.169, Internal Rate Of Return diperoleh sebesar 18,111%, sedangkan Net Benefit Cost Ratio diperoleh 6,462 lebih besar dari 1. Dengan demikian pekerjaan pe-meliharaan bertegangan secara teknis dan ekonomis sangat layak untuk dilaksanakan.
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Kornatka, Mirosław, and Tomasz Popławski. "Advanced Metering Infrastructure—Towards a Reliable Network." Energies 14, no. 18 (2021): 5986. http://dx.doi.org/10.3390/en14185986.
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In order to ensure continuous energy supply, Distribution System Operators (DSOs) have to monitor and analyze the condition of the power grid, especially checking for random events, such as breakdowns or other disturbances. Still, relatively little information is available on the operation of the Low Voltage (LV) grid. This can be improved thanks to digital tools, offering online processing of data, which ultimately increases effectiveness of the power grid. Among those tools, the use of the Advanced Metering Infrastructure (AMI) is especially conducive for improving reliability. AMI is one of the elements of the system Supervisory Control and Data Acquisition (SCADA) for the LV grid. Exact knowledge of the reliability conditions of a power grid is also indispensable for optimizing investment. AMI is also key in providing operational capacity for carrying out energy balance in virtual power plants (VPPs). This paper deals with methodology of identification and location of faults in the AMI-supervised LV grid and with calculating the System Average Interruption Duration Index (SAIDI) and System Average Interruption Frequency Index (SAIFI) on the basis of the recorded events. The results presented in the paper are based on data obtained from seven MV/LV transformer stations that supply over 2000 customers.
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Kim, Yong-Ha, Hye-Seon Lee, Seong-Hee Kim, In-Yong Seo, and Seong-Yeon Hyeon. "Development of Optimal Reliability Estimation Algorithm in Power Distribution Systems – Focus on SAIDI(System Average Interruption Duration Index)." Journal of the Korean Institute of Illuminating and Electrical Installation Engineers 32, no. 2 (2018): 77–88. http://dx.doi.org/10.5207/jieie.2018.32.2.077.
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Maharjan, Lizon, Mark Ditsworth, and Babak Fahimi. "Critical Reliability Improvement Using Q-Learning-Based Energy Management System for Microgrids." Energies 15, no. 23 (2022): 8779. http://dx.doi.org/10.3390/en15238779.
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This paper presents a power distribution system that prioritizes the reliability of power to critical loads within a community. The proposed system utilizes reinforcement learning methods (Q-learning) to train multi-port power electronic interface (MPEI) systems within a community of microgrids. The primary contributions of this article are to present a system where Q-learning is successfully integrated with MPEI to reduce the impact of power contingencies on critical loads and to explore the effectiveness of the subsequent system. The feasibility of the proposed method has been proven through simulation and experiments. It has been demonstrated that the proposed method can effectively improve the reliability of the local power system—for a case study where 20% of the total loads are classified as critical loads, the system average interruption duration index (SAIDI) has been improved by 75% compared to traditional microgrids with no load schedule.
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Hebda, Kamil, and Eryk Ostapiuk. "Possibilities of using a superconducting energy magnetic storage to improve the reliability of the SN distribution net-work in distribution companies." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 24, no. 6 (2019): 174–78. http://dx.doi.org/10.24136/atest.2019.146.
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The purpose of this work is to analyze the application of superconducting magnetic energy storage in radio controlled disconnector. For the purpose of improving the indicator of the duration of interruptions in the supply of electricity to SAIDI by electricity distribution operators. (System Average Interruption Duration Index). The topic is so important for the Polish economy that it can be treated as a social problem, which can not only reduce the quality of life, but also the economic development of small towns and villages where power outages are much longer than in cities. However, at the same time investment activities for improving the quality of electricity distribution in Poland represent a very high chance for the development of new innovative technologies. The article presents not only aspects related to the automation of the medium voltage network, but also due to its technical and economic capabilities of modern devices. The key in the article is the effective solution to the problem of reliability in Poland and the presentation of the use of an energy reserve in radio disconnector in order to improve the reliability of their work.
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Nweke, J. N., A. G. Gusau, and L. M. Isah. "Reliability and protection in distribution power system considering customer-based indices." Nigerian Journal of Technology 39, no. 4 (2021): 1198–205. http://dx.doi.org/10.4314/njt.v39i4.28.
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A stable and reliable electric power supply system is a pre-requisite for the technological and economic growth of any nation. Nigeria's power supply has been experiencing incessant power interruptions caused by a failure in the distribution system. This paper developed a system planning approach as part of the key mitigation strategies for improved reliability and protection of the distribution network. The developed algorithm is tested using 33kV feeder supplying electricity to Kaura-Namoda, Zamfara State, Nigeria. A customer-based reliability index was used as a tool to evaluate the reliability assessment of the feeder test system. The result showed that alternative 3 gives better results in terms of improvement of the system average interruption duration index (SAIDI), which in turn gives the minimum interrupted energy. Also, it is found that a greater number of sectionalizing switches do not give better results. It is very important to place the sectionalizing switches at a strategic location. If it is located at such points that will facilitate to sectionalize the faulty sections faster and to make the supply available to the unfaulty part of the network. Hence the utility company should apply this mitigation algorithm for system reliability improvement, depending on their needs and requirements. Thus, utilities can optimize network performance and better serve customers by adopting mitigation strategies in addressing trouble-prone areas to achieve a stable and reliable supply
 Keywords: distribution system; reliability; reliability indices; system performance evaluation; protection system; mitigation algorithms and sectionalizing switches
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Liao, Ziyan, and Alessandra Parisio. "Reliability Optimization of Multi-Energy System Considering Energy Storage Devices Effects under Weather Uncertainties." Energies 15, no. 3 (2022): 696. http://dx.doi.org/10.3390/en15030696.
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Multi-energy systems (MES) allow various energy forms, such as electricity, gas, and heat, to interact and achieve energy transfer and mutually benefit, reducing the probability of load cutting in the event of a failure, increasing the energy utilization efficiency, and improving the reliability and robustness of the overall energy supply system. Since energy storage systems can help to restore power in the case of failure and store the surplus energy to enhance the flexibility of MES, this work provides a methodology for reliability optimization, considering different energy storage configuration schemes under weather uncertainties. First of all, a reliability evaluation model of a multi-energy system under weather uncertainties based on a sequential Monte Carlo simulation is established. Then, the reliability optimization problem is formulated as a multi-objective optimization problem to minimize the reliability index, SAIDI (system average interruption duration index), and the reliability cost. Finally, a case study implemented on a typical MES layout is used to demonstrate the proposed methodology. A comparative analysis of three widely adopted multi-objective metaheuristic algorithms, including NSGA-II (non-dominated sorting genetic algorithm II), MOPSO (multiple objective particle swarm optimization), and SPEA2 (strength Pareto evolution algorithm 2), is performed to validate the effectiveness of the proposed method. The simulation results show that the NSGA-II algorithm leads to better optimal values and converges the fastest compared to the other two methods.
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Saniawa, Dionizy, Eryk Ostapiuk, Kamil Hebda, and Agata Bandrowska-Kaim. "Possibility of application hybrid solutions for improving SAIDI coefficient in medium voltage lines." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 19, no. 12 (2018): 1129–34. http://dx.doi.org/10.24136/atest.2018.564.
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The purpose of this work is to analyze the indicator of the duration of interruptions in the supply of electricity SAIDI (System Average Interupption Duration Index) given by power distribution operators (DSOs). The topic is so important for the Polish economy that it can be treated as a social problem that can not only reduce the quality of life, but also the economic development of small towns and villages where power outages are much longer than in cities. However, at the same time investment activities aimed at improving the quality of electricity distribution in Poland represent a very high chance for the development of new innovative technologies. The article presents not only related aspects with medium voltage network automation, but also due to their technical and economic capabilities, modern devices. The key in the article is the effective solution to the problem of reliability in Poland and the presentation of selected directions of investment.
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Hidayat, Surya Nur, Karnoto Karnoto, and Agung Warsito. "ANALISIS PERBANDINGAN NILAI SAIDI(SYSTEM AVERAGE INTERRUPTION DURRATION INDEX) DAN SAIFI (SYSTEM AVERAGE INTERRUPTION FREQUENCY INDEX) PLN APJ PURWOKERTO TAHUN 2014, 2015 DAN 2016 DENGAN STANDAR SPLN 1985." TRANSIENT 7, no. 1 (2018): 8. http://dx.doi.org/10.14710/transient.7.1.8-12.
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SPLN 1985 merupakan standar yang ditetapkan pada tahun 1985, sudah lebih dari 30 tahun SPLN 1985 dipakai sebagai standar. Seiring dengan perkembangan jaman, SPLN 1985 yang digunakan masih sama seperti yang tahun 1985 sehingga perlu dilakukan penelitian kembali apakah standar SPLN 1985 masih sesuai dengan kondisi sekarang. Perbedaan infrastruktur, peralatan listrik dan jumlah pelanggan pada tahun 1985 dengan tahun-tahun sekarang ini tentunya terdapat perbedaan, hal tersebut memberikan pengaruh yang berbeda dengan nilai keandalan listrik seperti SAIDI dan SAIFI. Pada penelitian ini dilakukan pengkajian standar SPLN 1985 dengan data lapangan yang diperoleh dari PLN APJ Purwokerto tahun 2014, 2015 dan 2016 dengan membandingkan hasil perhitungan nilai SAIDI dan SAIFI data lapangan dengan standar SPLN 1985. Pada penelitian ini, dilakukan perhitungan nilai SAIDI dan SAIFI tahun 2014, 2015 dan 2016 kemudian dibandingkan dengan SPLN 1985. Dari perhitungan diketahui nilai SAIFI data lapangan tahun 2014 didapatkan hasil sebesar 11,47 kali/tahun, tahun 2015 sebesar 20,74 kali/tahun dan 2016 sebesar 20,36 kali/tahun sementara standar SAIFI SPLN sebesar 3,2 kali/tahun.. Nilai SAIDI data lapangan tahun 2014 sebesar 16,76 jam/tahun, tahun 2015 sebesar 30,28 jam/tahun dan tahun 2016 sebesar 35,16 jam/tahun sementara standar SPLN sebesar 21 jam/tahun.
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RAJU*, K., P. Mercy hepciba rani, and J. Prashanthi. "Distributed Generation Impact on Distribution System Reliability." International Journal of Engineering and Advanced Technology 10, no. 3 (2021): 193–200. http://dx.doi.org/10.35940/ijeat.c2274.0210321.
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Reliability is the most important factor of distribution system and this system should be operated economically with low customer loads interruption. This is because that the distribution system gives supply to customers from transmission system. There are some power quality issues due to the failures of components in distribution system. Researchers are going on to assess the reliability of the power system. In the power system, reliability evaluation is an important aspect in complete electric distribution system planning and operation. Due to the extreme scale of problem, it is not possible to conduct reliability on complete power system, it is performed independently. Hence, In this paper, the reliability of distribution system is evaluated by using an analytical method is described and is applied to the IEEE RBTS BUS-6. Development of reliability model of distribution system using Electrical Transient Analyzer Program (ETAP) software is developed. And the Distributed Generation is introduced for the improvement of reliability. Reliability indices are such as System Average Interruption Frequency Indices (SAIFI), System Average Interruption Duration Indices (SAIDI), Customer Average Interruption Frequency Indices (CAIFI), Customer Average Interruption Duration Indices (CAIDI), Energy Not Supplied (ENS), Average Service Availability Indices (ASAI), etc. The performance of reliability of the system is shown by these indices
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Widyastuti, Christine, Oktaria Handayani, and Tony Koerniawan. "Keandalan Sistem Penyaluran Listrik Berdasarkan Saidi Dan Saifi Sebelum Dan Sesudah Pemasangan Kubikel Arrester di PT PLN UP3 Serpong." ENERGI & KELISTRIKAN 13, no. 2 (2021): 95–103. http://dx.doi.org/10.33322/energi.v13i2.1031.
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Keandalan sistem penyaluran tenaga listrik merupakan faktor yang sangat diperhatikan oleh PT PLN (Persero) UP3 Serpong. Parameter keandalan penyaluran tenaga listrik terdiri dari SAIFI (System Average Interuption Frequency Index) yang merupakan rata-rata frekuensi (kali) padam yang dirasakan oleh pelanggan per tahun dan SAIDI (System Average Interuption Duration Index) yang merupakan durasi (lama) padam yang dirasakan oleh pelanggan per tahun. Jaringan listrik di PT PLN UP3 Serpong banyak menggunakan saluran kabel, dimana pada saluran kabel sering terdapat titik jointing. Gangguan pada saluran kabel bisa diakibatkan karena adanya arus inrush ketika terjadi peralihan beban di jaringan dan merusak jointing kabel. Oleh karena itu sekarang metode pemasangan kubikel arrester di saluran kabel dilakukan PT PLN UP3 Serpong untuk mengurangi intensitas gangguan tersebut, sehingga nilai keandalan sistem seperti parameter SAIDI dan SAIFI menjadi lebih baik. Nilai SAIDI dan SAIFI sebelum pemasangan arrester adalah SAIDI 9,39 jam/pelanggan/tahun dan SAIFI 6,98 kali/pelanggan/tahun. Nilai tersebut belum sesuai dengan SPLN 68-2:1986.
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Sabbagh Alvani, Amir, and Seyed Mehdi Mahaei. "Reconfiguration of Distribution Networks with Presence of DGs to improving the Reliability." Indonesian Journal of Electrical Engineering and Computer Science 2, no. 2 (2016): 241. http://dx.doi.org/10.11591/ijeecs.v2.i2.pp241-247.
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In this paper, the network reconfiguration in the presence of distributed generation units with the aim of improving the reliability of the network is studied. For this purpose four reliability parameters in the objective function are considered, which is average energy not supplied system average interruption frequency index, system average interruption duration index and momentary average interruption frequency index. The new method will be normalized objective function. Another suggestion of this paper are considering the different fault rates, locating time of faults type and prioritization of customers based on their importance. This nonlinear problem has optimized by particle swarm optimization (PSO) algorithm.
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Mohd Fauzi, Noorfatin Farhanie, Nur Nabihah Rusyda Roslan, and Mohd Ikhwan Muhammad Ridzuan. "Reliability performance of distribution network by various probability distribution functions." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 2 (2023): 2316. http://dx.doi.org/10.11591/ijece.v13i2.pp2316-2325.
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Electricity is one of the essential sources for the daily basis activities. The continuous electricity supplied to the customers is one of the main goals for electricity provider. Reliability is one of the main aspects that is focused more on the planning of the power system especially in distribution network. The performance of reliability in the system is evaluated with three main reliability indices: system average interruption frequency index, system average interruption duration index, and customer average interruption duration index. These indices will only give information about the overall condition of the power system without showing the details about the specific of the consumers such as the amount interruptions experienced by customer in the system. In this paper, probability distribution function (PDF) observing the behavior of the components in the system is used in the reliability analysis. Weibull distribution, also known as Weibull family, is one of the most common PDF used in reliability analysis. As Weibull distribution is also related to several distributions, such as exponential and Rayleigh, these types of distributions are applied in the output reliability analysis to observe the performance of reliability in the system. IEEE 9-bus is used as distribution network and carried out using Monte-Carlo simulation.
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Fauzi, Adryan Fahri Zul, Agus Kiswantono, and Saidah Saidah. "Power Outage Sensing Device based on IOT for Service Quality Evaluation in the PLN Distribution System." ELKHA 13, no. 2 (2021): 155. http://dx.doi.org/10.26418/elkha.v13i2.43741.
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In overcoming electrical disturbances, PLN implements an equipment protection system that aims to reduce the areas experiencing power outage. However, this protection system has not been integrated with the SCADA system. As a parameter to maintain customer service continuity, PLN uses customer-based indexes, i.e., the Customer Average Interruption Duration Index (CAIDI) and Customer Average Interruption Frequency Index (CAIFI). In the calculation of those index values, the record of power outage occurrence at PLN is still not accurate because the duration and frequency of power outage based on customer complaints. In this study, a Power Outage Sensing device is installed on the secondary distribution system transformer 380/220 which can ensure the location, record the frequency and duration of power outage and serve customers in real time based on IOT using WEMOS D1 and optocoupler sensors which can then be accessed on a web. In its implementation, all power outage is recorded in the database and can be accessed on the web interface. This device can speed up the recovery of disturbances in the system after an outage and perform accurate CAIDI and CAIFI index calculations as customer service evaluations.
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Szott, Marcin, Szymon Wermiński, Marcin Jarnut, Jacek Kaniewski, and Grzegorz Benysek. "Battery Energy Storage System for Emergency Supply and Improved Reliability of Power Networks." Energies 14, no. 3 (2021): 720. http://dx.doi.org/10.3390/en14030720.
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This paper introduces the concept of a battery energy storage system as an emergency power supply for a separated power network, with the possibility of island operation for a power substation with one-side supply. This system, with an appropriately sized energy storage capacity, allows improvement in the continuity of the power supply and increases the reliability of the separated network at a specified time during the limitation of power transmission as a result of damage or disconnection of the main power line. This paper presents and describes a specific method of energy storage system dimensioning based on real measurement data. Based on the obtained parameters, an analysis of the reliability improvement of the considered network was performed. The implementation of the battery energy storage system will contribute to a more than 5-fold reduction in the occurrence of power outages in the time interval from 3 min to 1.5 h, which will clearly reduce the System Average Interruption Frequency Index and System Average Interruption Duration Index factors. In this paper, the network conditions for operational normality and failure are presented and the cost for implementation of an energy storage system (about EUR 1 million) is compared with the possible implementation of an additional power line (about EUR 5 million) to a specific power substation.
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Cruz, Laura M., David L. Alvarez, Ameena S. Al-Sumaiti, and Sergio Rivera. "Load Curtailment Optimization Using the PSO Algorithm for Enhancing the Reliability of Distribution Networks." Energies 13, no. 12 (2020): 3236. http://dx.doi.org/10.3390/en13123236.
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Power systems are susceptible to disturbances due to their nature. These disturbances can cause overloads or even contingencies of greater impact. In case of an extreme situation, load curtailment is considered the last resort for reducing the contingency impact, its activation being necessary to avoid the collapse of the system. However, load shedding systems seldom work optimally and cause either excessive or insufficient reduction of the load. To resolve this issue, the present paper proposes a methodology to enhance the load curtailment management in medium voltage distribution systems using Particle Swarm Optimization (PSO). This optimization seeks to minimize the amount of load to be cut off. Restrictions on the optimization problem consist of the security operation margins of both loading and voltage of the system elements. Heuristic optimization algorithms were chosen, since they are considered an online basis (allowing a short processing time) to solve the formulated load curtailment optimization problem. Best performances regarding optimal value and processing time were obtained using a PSO algorithm, qualifying the technique as the most appropriate for this study. To assess the methodology, the CIGRE MV distribution network benchmark was used, assuming dynamic load profiles during an entire week. Results show that it is possible to determine the optimal unattended power of the system. This way, improvements in the minimization of the expected energy not supplied (ENS) as well as the System Average Interruption Frequency Index (SAIDI) at specific hours of the day were made.
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Kozyrsky, V., A. Gai, and P. Petrov. "Approach to placing reclousers in distribution networks." Energy and Automation, no. 4 (September 23, 2020): 5–18. http://dx.doi.org/10.31548/energiya2020.04.005.
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Today, the electricity supplier is not able to declare the possible level of reliability of electricity supply, and the consumer simply does not have the opportunity to buy such “reliable” electricity. In such conditions, a differentiated approach to tariff formation is inevitable, which has been implemented in practice today, albeit in its infancy. Further improvement of the tariff-forming mechanism is impossible without creating a "flexible" dependence of the tariff on the indicators of the consumer's power supply reliability. Reliability indicators, in turn, are based, on the one hand, on the methods and approaches for their determination, and on the other, on statistically reliable data on the reliability of the elements that make up the equipment in the "generation-consumer" chain. Localization by automatic sectioning points at the design stage in the context of RAB tariff setting (incentive tariff setting) ensures the target nature of reducing SAIDI (index of average duration of outages in the system) and, as a result, assessing the possibility of achieving the target ENS (estimated volume of non-supplied electrical energy) significantly reduces the cost of network design and reconfiguration. In this regard, it is necessary to revise the state and topology of problem networks, including the operated partitioning hardware; to define support services in the energy company; be trained in software (for example, TELARM) as a design tool; to create the standards of the company (group of companies), taking into account the experience of colleagues from Moldova, the Security Council, the Baltic States, far abroad. As part of a scientific search, an approach was proposed, which is the basis for calculations to determine the optimal installation locations for automatic sectioning points for an average air line, as well as a parallel-serial air line with "targeted" automatic reserve input, corresponding to the optimal SAIDI value. The results obtained are presented in the framework of a joint technical meeting of leading specialists of operating enterprises, the customer and the staff of the Department of Power Supply named after A. V.M. Sinkova NULES of Ukraine.
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Parihar, Shradha, and Nitin Malik. "Optimal allocation of multiple DGS in RDS using PSO and its impact on system reliability." Facta universitatis - series: Electronics and Energetics 34, no. 2 (2021): 219–37. http://dx.doi.org/10.2298/fuee2102219p.
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This article presents the distributed generator (DG) integration in a radial distribution system (RDS). The DG penetration changes the single power source to multiple power sources and bidirectional load flow which enhances the system reliability and reduces system power losses. The particle swarm optimization and gravitational search algorithm are implemented for the optimal siting and sizing of one and three DG units in the RDS to examine its impact on system reliability and loss reduction. The types of DGs considered are Type I (injects real power) and Type IV (injects reactive and real power). The constant power is the chosen load model. The reliability indices taken for the analysis of system reliability are Average Energy Not Supplied, Total Energy Not Supplied and Average System Interruption Duration Index. The efficacy of the proposed method is validated on 33-bus in the presence of single and multiple DGs. The significant decrease in system power losses with the upgraded bus voltage profile, system reliability and remarkable annual loss saving is analyzed for Type IV DG over Type I DG. The results determined are compared to other meta-heuristic approaches as well as analytical techniques to demonstrate the superiority of the proposed methodology. The results are also statistically verified.
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Guzmán, Diego A., Guilherme S. Mohor, and Eduardo M. Mendiondo. "Multi-Year Index-Based Insurance for Adapting Water Utility Companies to Hydrological Drought: Case Study of a Water Supply System of the Sao Paulo Metropolitan Region, Brazil." Water 12, no. 11 (2020): 2954. http://dx.doi.org/10.3390/w12112954.
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The sustainability of water utility companies is threatened by non-stationary drivers, such as climate and anthropogenic changes. To cope with potential economic losses, instruments such as insurance are useful for planning scenarios and mitigating impacts, but data limitations and risk uncertainties affect premium estimation and, consequently, business sustainability. This research estimated the possible economic impacts of business interruption to the Sao Paulo Water Utility Company derived from hydrological drought and how this could be mitigated with an insurance scheme. Multi-year insurance (MYI) was proposed through a set of “change” drivers: the climate driver, through forcing the water evaluation and planning system (WEAP) hydrological tool; the anthropogenic driver, through water demand projections; and the economic driver, associated with recent water price policies adopted by the utility company during water scarcity periods. In our study case, the evaluated indices showed that MYI contracts that cover only longer droughts, regardless of the magnitude, offer better financial performance than contracts that cover all events (in terms of drought duration). Moreover, through MYI contracts, we demonstrate solvency for the insurance fund in the long term and an annual average actuarially fair premium close to the total expected revenue reduction.
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Trunova, Iryna, Oleksandr Miroshnyk, Oleksandr Moroz, Anatolii Sereda, and Volodymyr Pazii. "ANALYSIS OF THE EFFICIENCY OF USING INVESTMENTS FOR INCREASE OF CONTINUITY OF ELECTRICITY SUPPLY." Energy saving. Power engineering. Energy audit., no. 10(152) (April 24, 2021): 23–29. http://dx.doi.org/10.20998/2313-8890.2020.09.03.
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The method of the analysis of efficiency of use of investments for increase of continuity of electricity supply for customers is offered. The use of coefficients which are identical to product of average specific financing of investment programs with taking into account of standard units of electric equipment and a target System Average Interruption Duration Index in a method of the comparative analysis of efficiency of use of investments is offered. The calculation of factors of an inefficiency of use of investments for increase of continuity of electricity supply of customers which are in rural and city areas is offered. It is offered optimization model of efficiency of use of investments for increase of continuity of electricity supply of customers. The example of practical application of the offered method for definition of companies with inefficient use of investments for increase of continuity of electricity supply of customers in rural and city areas is given. The rank of companies which are chosen for research, by efficiency of use of investments for increase of continuity of electricity supply for customers is determined. Application of this method for the analysis of efficiency of use of investments in the sub-units of the companies and for the use of the calculated coefficients as Key Performance Indicators and corresponding stimulation of sub-units of the regulated companies to more effective use of investments is offered. Conclusion that in sub-units of the regulated companies which are certain as such where inefficiently use investments, on the basis of the analysis of the organization of technical operation and quality of performance of works, uses of modern technologies of repair and maintenance service of an electric equipment, improvement of professional skill of the personnel, and, using corresponding provision of economic incentives, probably to reach increase of continuity of electricity supply of customers is given.
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Wirayanto, Samuel Dwi, Arlenny Arlenny, and Elvira Zondra. "Sistem SCADA Pada Jaringan Distribusi PT.PLN (Persero) UP2D Pekanbaru." JURNAL TEKNIK 16, no. 2 (2022). http://dx.doi.org/10.31849/teknik.v16i2.11094.
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ABSTRAK
 Pada jaringan distribusi PT. PLN (Persero) UP2D Pekanbaru Penyulang eksisting sudah terkoneksi dengan sistem SCADA, namun jika dilihat dari infrastruktur pendukungnya, integrasi sistem SCADA dengan jaringan distribusi PT. PLN (Persero) UP2D Pekanbaru masih belum optimal, sehingga pada tugas akhir ini akan dibahas perbaikan kinerja sistem SCADA untuk meningkatkan keandalan jaringan distribusi PT. PLN (Persero) UP2D Pekanbaru Penggunaan SCADA (Supervisory Control and Data Aquisition) pada jaringan sistem distribusi UP2D Pekanbaru sangat berpengaruh kepada tingkat indeks keandalan SAIDI (system average interruption duration index),SAIFI (system average interruption frequency index ) dan CAIDI CAIDI (customer average interruption duration index), Indeks keandalan SAIDI pada jaringan Distrbusi UP2D Pekanbaru mengalami penurunan dari nilai indeks 2.115 menit/pelanggan sebelum terintegrasi dengan SCADA menjadi 1.802 menit/pelanggan setelah terintegrasi dengan sistem SCADA, sedangkan untuk indek SAIFI mengalami penurunan nilai indeks 23,164 kali/pelanggan sebelum terintegrasi dengan sistem SCADA menjadi 21,685 kali/pelanggan setelah terintegrasi dengan sistem SCADA, untuk indeks CAIDI dari nilai indeks 85,805 menit/pelanggan sebelum terintegrasi dengan sistem SCADA, mengalami penurunan nilai indeks menjadi 85,561 menit/pelanggan setelah terintegrasi dengan sistem SCADA. Sistem Distribusi UP2D Pekanbaru mengalami peningkatan indeks keandalan sistem Distribusi setelah terintegrasi dengan sistem SCADA, dengan parameter indeks SAIDI, SAIFI dan CAIDI, perhitungan analisis indeks SAIDI yaitu sebesar 14,799% dan SAIFI sebesar 6,384%, sedangkan untuk indeks CAIDI yaitu sebesar 0,337%.
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Mangera, Paulus. "Reliability Analysis of 20 kV Medium Voltage Air Line Distribution System at Semangga Switch Substation in Merauke Regency." Engineering and Technology Journal 07, no. 10 (2022). http://dx.doi.org/10.47191/etj/v7i10.04.
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The breakdown of electrical energy can be caused by the unwanted failures that occur in the electric power system, especially in the distribution system, and have an impact on service continuity which can be a permanent failure, temporary failure, three phase short circuit failure, double phase short circuit failure, and black out. To anticipate this, a study needs to be done to analyze and find out how well the distribution system reliability index. Determination of the analysis was done by the method of data retrieval related to the analysis variable. Besides, in determining the results of the analysis, calculations using System Average Interruption Frequency Index (SAIFI), Customer Interruption Frequency Index (CAIFI), System Average Interruption Duration Index (SAIDI) and Customer Average Interruption Duration Index (CAIDI) analyses were performed. Based on the reliability of the distribution network, the SAIFI and CAIDI maximum threshold value setup by PT. PLN (The National Electricity Company) at the Semangga substation each worth 3.00 failures/customer.year and 3.00 failures/customerr while SAIDI and CAIDI each worth value of 3.40 hours/customer.year and 3.40 hours/customer.failure. All feeders installed at Semangga switch substation in realization gives reliability indices smaller than the target that has been set., it is mean that 20 kV medium voltage air line distribution system at Semangga switch substation still reliable and the duration of the failure time for each feeder was an average of 3 minutes of each failure and the number of failures every month was an average of 15 times of each feeder.
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Wardani, Sartika Kusuma, and Subali Subali. "KOORDINASI SETTING RELAI ARUS LEBIH PADA INCOMING 2 KUDUS TERHADAP OUTGOING KUDUS 5 DAN 6 YANG MENGGUNAKAN JARINGAN DOUBLE CIRCUIT DI GI 150 KV KUDUS." Gema Teknologi 18, no. 2 (2015). http://dx.doi.org/10.14710/gt.v18i2.8975.
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Sartika Kusuma Wardani, Subali, in paper coordination of flow over relay setting in incoming 2 kudus to outgoing 5 and 6 using double circuit network on GI 150 KV kudus explain that PT PLN make every effort to improve service to customers , one of them by increasing the reliability of the distribution of electrical energy . Reliability of the distribution network is very important for both consumers and PLN. One measure of the reliability of the system / network is a factor SAIDI (System Average Interruption Duration Index) and SAIFI (System Average Interruption Frequency Index). Steps that have been done one way to minimize the possibility of interference is by installing protective devices on medium voltage networks. However, installation of protection equipment is not enough if the relay setting coordination between the incoming and outgoing imprecise. In fact in recent months, an interruption in the feeder distribution network which affects the incoming relay tripnya due to failure of the feeder protection system. One of the events that have happened several times is the same disorder in a double feeder circuit (network supplied from a single source by using two networks ( two feeder ) were included in the bus and in 1 pole) and holy 5 and 6 which causes the incoming PMT trip. It is very risky to happen, because the resulting trip relays at all incoming feeder that gets supply voltage of the incoming. So it takes coordination of overcurrent relay settings right so that the incidence of the incoming trip Sacred 2 does not happen again . Keywords: distribution, protection, relay settings, incoming, outgoing
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Ndjependa, Patrik Roger, Alexandre Teplaira Boum, and Salomé Ndjakomo Essiane. "A novel approach of a dynamic multi objective optimization of a power distribution system." Journal of Electrical Systems and Information Technology 8, no. 1 (2021). http://dx.doi.org/10.1186/s43067-021-00039-6.
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AbstractA new dynamic multi objective optimization approach is covered in this paper. The technique for optimizing the power distribution system is dynamic reconfiguration. The goal is to propose an optimal dynamic reconfiguration which minimizes the active power losses and the voltage deviation of the nodes of the power distribution system according to the energy available at the source, while constantly guaranteeing the supply of the electrical energy to priority consumers. The reliability indices considered in this paper are the system average interruption frequency index (SAIFI) and the system average interruption duration index (SAIDI) and are used to check the reliability of the optimal configurations obtained. This study subdivides a day into periods. The variations in the available power of the source and the power requested by the load, cause a new optimal configuration of the network at each period. In this work, the load adapts to the source and the optimal network topology evolves according to the maximum available power of the source. A mathematical formulation of the dynamic optimization problem by period or piece is proposed. The dynamic approach consists in acquiring the power of the load and of the source by period or piece and to compare them. When the available energy is sufficient, an optimal configuration that minimizes the power losses and voltage deviation while ensuring the supply of electrical energy to all consumers in the network is proposed. On the other hand, when the available energy is insufficient, an optimal topology of the power system minimizing the power losses and voltage deviation while guaranteeing the supply of electrical energy to priority consumers of the network is proposed. The optimal solutions per period are obtained using the MIP and MINLP methods. The approach is implemented on standard IEEE 15, 33 and 69 node power distribution system. The results obtained are satisfactory and prove the effectiveness of this new vision for the conduct of the power distribution system.