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All Journal Jurnal Ampere JMM (Jurnal Masyarakat Mandiri) JURNAL SURYA ENERGY Journal of Robotics and Control (JRC) Frontiers Jurnal Teknik Elektro
Yosi Apriani, Yosi
Program Studi Ilmu Gizi, Fakultas Kedokteran,Universitas Brawijaya, Jl. Veteran Malang 65145
Aerospace Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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INVERTER BERBASIS ACCUMULATOR SEBAGAI ALTERNATIF PENGHEMAT DAYA LISTRIK RUMAH TANGGA Apriani, Yosi; Barlian, Taufik
JURNAL SURYA ENERGY Vol. 3 No. 1 2018
Publisher : UNIVERSITAS MUHAMMADIYAH PALEMBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v3i1.1233

Abstract

Inverter dapat mengubah arus listrik searah menjadi arus listrik bolak-balik, dari tegangan input 12Vdc menjadi tegangan output 220Vac, dengan kebutuhan daya tergantung dari kebutuhan beban yang terpasang pada inverter. Inverter dirancang pada daya maksimum 1300 Watt. Daya input inverter yang sebenarnya dapat menampung daya sebesar 960 Watt. Tujuan  penelitian ini adalah membuat suatu perangkat elektronik yang bisa menjadi sumber energi listrik dengan mengubah arus searah menjadi arus bolak-balik, yang memanfaatkan accumulator sebagai sumber energi listrik arus searah. Metode penelitian yang digunakan dalam penelitian ini menggunakan diagram flowchart yang memiliki tahapan sebagai berikut: 1). Mendesign rangkaian inverter, 2). Merakit rangkaian inverter sesuai design/ rancangan,3). Menguji hasil rancang bangun inverter dengan peralatan rumah tangga, 4). Menghitung dan menganalisa hasil perancangan. Hasil penelitian di dapat daya input minimum pada beban variasi 191.82 Watt, sedangkan daya input maksimum 715. Daya output minimum pada beban variasi 192.37 Watt, sedangkan daya output maksimum 780 Watt. Efisiensi daya input jika dihitung dari batas kemampuan daya inverter  sebesar 25.5-80.0%. Efisiensi daya output jika dihitung dari batas kemampuan daya inverter sebesar 9.55-77.69%.
ANALISIS KARAKTERISTIK TURBIN CROSSFLOW KAPASITAS 5 kW Saleh, Zulkiffli; Apriani, Yosi; Ardianto, Feby; Purwanto, Ricky
JURNAL SURYA ENERGY Vol. 3 No. 2 2019
Publisher : UNIVERSITAS MUHAMMADIYAH PALEMBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v3i2.1484

Abstract

Turbin crossflow dikelompokkan dalam  jenis turbin skala mikro dengan rentang tinggi jatuh efektif aliran dibawah 30 m, dengan sudut peletakan turbin maksimal 30o. Kajian penelitian ini bertujuan untuk menganalisis karakteristik turbin crossflow kapasitas 5 kW. Metode penelitian kasus berdasarkan pengumpulan data pada objek kajian. Kesimpulan yang disarikan dari kajian penelitian tersebut berupa kecenderungan kenaikan putaran poros turbin berbanding dengan penambahan kecepatan alir fluida. Fenomena ini cukup signifikan dengan karakteristik kurva turbin crossflow. Indikasi perubahan daya terbangkitkan yang diakibatkan oleh perubahan putaran pada poros turbin yang beragam disebabkan oleh heterogenitas aliran pada saluran pembawa. Karakteristik mekanis menghasilkan putaran sebesar 256,30 rpm dan daya yang terbangkitkan pada turbin sebesar 4,88 kW.
PENGATURAN KECEPATAN MOTOR AC SEBAGAI AERATOR UNTUK BUDIDAYA TAMBAK UDANG DENGAN MENGGUNAKAN SOLAR CELL Sofiah, Sofiah; apriani, yosi
JURNAL AMPERE Vol 4, No 1 (2019): JURNAL AMPERE
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (373.068 KB) | DOI: 10.31851/ampere.v4i1.2825

Abstract

Abstract------ Aerator is a tool to help shrimp farmers to drain air or increase the value of oxygen so that more oxygen will enter the water to help grow the shrimp. Aerator consists of several supporting components namely AC motor, accumulator, inverter, impeller and frame. This aerator is designed using solar cells as an energy source. In the results of testing the solar cell supplying 5.7 amperes of current with a voltage of 17.5 volts, the accumulator works on a voltage of 12v / 70Ah, with charging current from the solar cell and accumulator charger 5.7 amperes with a charging time of approximately 12.2 hours, maximum calculated inverter power is 500 watts
ANALISIS PENAMBAHAN ANTENA 3G DI SITE SEI BUAH PT.TELKOMSEL PALEMBANG DIVISI SERVICE QUALITY ASSURANCE Apriani, Yosi
JURNAL SURYA ENERGY Vol. 1 No. 1 2016
Publisher : UNIVERSITAS MUHAMMADIYAH PALEMBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v1i1.523

Abstract

Penambahan BTS 3G bertujuan untuk memberikan layanan yang selalu lebih baik dan cepat. Perbandingancoverage 2G dan coverage 3G yang sangat dapat dirasakan oleh pelanggan adalah kualitas nilai level voice3G jauh lebih baik dibandingkan dengan nilai level voice 2G. Untuk mengetahui kulitas layanan maka bisadilakukan drive test. Dari drive test ini akan diketahui kualitas layanan seperti SMS (Short MessageService), video, voice dan data. Dari hasil drive test tersebut maka akan dianalisa apakah service suatu BTSpada suatu daerah tertentu dapat dikatakan baik atau belum. Maka service BTS tersebut akan dilakukansetting parameter, optimasi, audit site bahkan sampai akan dilakukan downlitl atau uplitl atau perluditambahkan BTS baru. Standar untuk nilai voice yang baik adalah 10 dBm sampai dengan 85 dBm,untuk nilai kecepatan akses data 2G yang baik adalah  51 Kbps  256 Kbps  sedangkan pada kecepatanakses data 3G 380 Kbps  1200 Kbps. Faktor yang mempengeruhi baik buruknya nilai received level sinyalvoice baik untuk 2G maupun untuk 3G adalah jarak antara antenna kelokasi pengukuran. Yangmempengaruhi nilai kecepatan akses data tersebut baik/cepat dan lambat/buruk adalah durasi akses data.
DESIGNING A SINGLE PHASE INVERTER TO CALCULATE PUBLIC ROADS LIGHTING EFFICIENCY USING SODIUM LAMP TYPES Apriani, Yosi; Barlian, Taufik; Danus, Muhar; Sofian, Ian Mochamad; Hidayat, Fahmi
FRONTIERS: JURNAL SAINS DAN TEKNOLOGI Vol 1, No 3 (2018): DESEMBER 2018
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1057.741 KB)

Abstract

An inverter is a circuit which converts the AC voltage into DC voltage. Current use of inverters is very large, especially in industries, offices and housing. Even though now there are many inverter markets, but many are used for household loads, no one uses an inverter for roads lighting system namely sodium lamp because it requires a high frequency and voltage Then the surveyors placed a single phase inverter from the sodium lamp. Single phase inverter tool designed produces a voltage of 10,000 V, Amperage current of 0.20 A and 2000 w Power when tested against overloaded and not overloaded inverter, the results are quite good but in the design and manufacture of a single phase inverter is still lacking, which is only able to start the initial lighting of the sodium lamp because the current is small and the resulting voltage is unstable.Keywords: Single phase inverter, electrical energy, public road lighting, sodium lamp.
Analysis of the local energy potential connection with power plants based on archimedes turbine 10 kW Apriani, Yosi; Saleh, Zulkiffli; Dillah, Riyan Kurnia; Sofian, Ian Mochamad
Journal of Robotics and Control (JRC) Vol 1, No 5 (2020): September
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jrc.1533

Abstract

Research on the availability of water potential for the development of power plants with various scales and types of power plants has been done. Since most existing water sources have small discharges and low heads, this study aimed at designing a micro-hydropower center as one of the ways the electrical energy crisis could be avoided, with one of the renewable energy potentials, namely the potential energy of water in Micro Hydro Power Plant. Further studies were related to water resources to Micro Hydro Power Plants (MHPP) construction, especially Archimedes screw turbines guide parameters that corresponded to flow velocity, channel cross-section, and flow volume. It aimed to connect the local energy potential to the output power of the Archimedes screw turbine. The methods used for this study were 1. Observation 2. Data collection, and 3. Data Analysis. The study was carried out using an observation method that adopted field data collection techniques assisted by measuring equipment to collect data coverage that refers to related parameters. The power available on the channel resulted was 946 kW, and the power generated in the turbine was 5.9 kW.
Continuous Power Flow and Time Domain Analysis for Assessing Voltage Stability Oktaviani, Wiwin Armoldo; Barlian, Taufik; Apriani, Yosi; Syarif, Nugraha
Journal of Robotics and Control (JRC) Vol 1, No 6 (2020): November
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jrc.1637

Abstract

Voltage instability is considered one of the primary sources of insecurity in power systems. Voltage instability is the phenomenon in which the voltage on the receiver's side is dropping far below the normal value and does not return even after establishing a voltage recovery mechanism, or continue to oscillate due to lack of attenuation. In this study, there will be a voltage stability analysis on the power system in several phases by conducting a power flow analysis, static voltage stability analysis using continuous power flow method, and dynamic voltage stability analysis using the time-domain analysis. The power system tested on this research is the IEEE 6 bus system from Wood Wollenberg, with the software used for the simulation, which is PSAT. The results show that voltage stability analysis using Continuous Power Flow and Time Domain Analysis can provide a more comprehensive overview of a power system stability level.  The highest decrease in voltage with a value of 1.5% appears in Bus 5 which is also suffering the lowest stability level. The system has a load margin (λ) value of 1.6130 a clearing time of under 0.4 seconds
Analysis of Performance of Permanent Magnet Generator Fluks Axial 1 Phasa with Variation Load Saleh, Zulkiffli; Apriani, Yosi; Karim, Khoirul; Aldiansyah, Aldiansyah
Journal of Robotics and Control (JRC) Vol 2, No 2 (2021): March (Forthcoming Issue)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

With the potential of low water head energy and relatively small water discharge then it takes a low round generator to be applied to the potential of existing energy. The development of Permanent Magnet Generator (PMG), being an alternative considering the pole construction of the rotor is relatively simple compared to conventional generators, so it is technically required a more number of rotor poles in the effort to lower the speed The nominal dial generator. The purpose of this research is to analyze the 1-phase axial generator performance with varied resistive loads and inductive loads. This research has 4 stages of research: 1). Study literature.  2). Carried out testing tools. 3). Measurement of data retrieval.  4). Data analysis. From this research obtained results from the tools and measurements of the data retrieval of the performance of axial generator 1 phase with inductive and resistive load Vaiasi. Load mounted 15 watts, voltage 35.10, current 0.80, RPM 2550 when load 75 Waat, Voltage 11.50, current 1.54, RPM 2220. From these results can be concluded axial generator 1 phase currents also get bigger but voltage and rpm decreases.
SOSIALISASI PENGGUNAAN INVERTER BERBASIS SOLAR SEL DI LAYANAN KESEHATAN CUMA-CUMA (LKC) DOMPET DUAFA PALEMBANG SEBAGAI UPAYA PENINGKATAN KUALITAS LAYANAN KESEHATAN Apriani, Yosi; Anwar, Wiwin Oktaviani; Rasyad, Ade Arinia
JMM (Jurnal Masyarakat Mandiri) Vol. 3, No. 2: Desember 2019
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (187.715 KB) | DOI: 10.31764/jmm.v0i0.1153

Abstract

Abstrak: Kegiatan pengabdian ini bertujuan meningkatkan pelayanan kesehatan oleh mitra kepada masyarakat yang kurang mampu (kaum dhuafa). Mitra yang dipilih adalah sebuah lembaga yang sangat memperhatikan kondisi masyarakat yang miskin (kaum dhuafa), Layanan Kesehatan Cuma-Cuma ini sebuah lembaga nirlaba yang merupakan salah satu unit dari Dompet Dhuafa Palembang. Staf dan karyawan di LKC berjumlah 15 orang, dan hampir semuanya belum memahami pentingnya penggunaan inverter sebagai penghemat daya di klinik LKC. Permasalahan di klinik LKC DD Sumsel adalah belum memiliki peralatan penghemat daya berupa inverter berbasis solar sel yang aman terhadap lingkungan, sedangkan perlatan kesehatan di LKC banyak yang menggunakan listrik. Berdasarkan kondisi tersebut tim pengabdian berinisiatif mengadakan sosialisasi penggunaan inverter sebagai penghemat daya yang benar dan tepat, serta sosialisasi pemeliharaan instalasi listrik yang benar. Setelah sosialisasi terjadi peningkatan pemahaman pemakaian peralatan inverter sebesar 75%, dari 25%, sehingga terjadi peningkatan kualitas pelayanan kesehatan.Abstract: This service activity aims to improve health services by partners to disadvantaged communities (the poor). The partner chosen is an institution that is very concerned about the conditions of the poor (poor), Free Medical Services is a non-profit organization which is a unit of the Dompet Dhuafa Palembang. The staff and employees at LKC are 15 people, and almost all of them do not yet understand the importance of using an inverter as a power saver at LKC clinics. The problem at the LKC DD Sumsel clinic is that it does not yet have power-saving equipment in the form of solar cell-based inverters that are safe for the environment, while many health equipment in LKC uses electricity. Based on these conditions the dedication team took the initiative to conduct socialization of the use of inverters as a true and right power saver, as well as a socialization of the maintenance of the correct electrical installations. After the socialization, there was an increase in understanding of the use of inverter equipment by 75%, from 25%, resulting in an increase in the quality of health services. 
Analisis Kapasitor Bank Untuk Memperbaiki Tegangan Barlian, Taufik; Apriani, Yosi; Savitri, Nina; Hurairah, Muhammad
JURNAL SURYA ENERGY Vol. 4 No. 2 2020
Publisher : UNIVERSITAS MUHAMMADIYAH PALEMBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v4i2.2562

Abstract

Tenaga Listrik disalurkan kekonsumen melalui sistem tenaga listrik yang terdiri dari beberapa sub sistem yaitu  pembangkit, transmisi, dan distribusi. Penyulang Gurami Gardu Induk Kedukan mengalami penurunan tegangan pada 4 bus yaitu 43, 45, 47, dan 49. Dengan nilai penurunan bus 43 sebesar 19,599 kV, bus 45 sebesar 19,596 kV, bus 47 sebesar 19,595 kV, dan bus 49 sebesar 19,594 kV. Bus- bus tersebut mengalami penurunan dengan kondisi marginal (2%). Cara meningkatkan tegangan pada Bus bisa dilakukan dengan cara menambahkan kapasitor bank yang berfungsi meningkakan tegangan pada bus,  dengan menaikan faktor daya beban dari 0,85 menjadi 0,95 pada bus 43, 45, 47, dan 49. Penelitian ini menggunakan metode segitiga daya, Metode ini dipakai jika data yang diketahui adalah daya aktif (P) dan daya nyata (S) serta power factor sebenarnya ( dan power factor yang diinginkan . Hasil penelitian menunjukkan bahwa setelah dipasang  kapasitor bank pada bus yang mengalami penurunan terjadilah peningkatan tegangan dengan nilai peningkatan di bus 45 sebesar 19,62 kV, bus 45 sebesar 19,617 kV, bus 47 sebesar 19,616 kV, dan bus 49 sebear 19,615 Kv. Pada saat bus-bus yang mengalami penurunan (43,45,47, dan 49) dipasang  kapasitor bank maka terjadinya peningkatan tegangan pada bus- bus tersebut sehingga mengakibatkan peningkatan tegangan kembali.Electricity is channeled to consumers through an electric power system consisting of several sub-systems, namely generation, transmission, and distribution. The Kedukan substation feeder Gurami feeder experienced a decrease in voltage on 4 buses namely 43, 45, 47, and 49. With a reduction in bus 43 of 19,599 kV, bus 45 of 19,596 kV, bus 47 of 19,595 kV, and bus 49 of 19,594 kV. The buses have decreased with marginal conditions (2%). How to increase the voltage on the bus can be done by adding a capacitor bank that serves to increase the voltage on the bus, by increasing the load power factor from 0.85 to 0.95 on buses 43, 45, 47, and 49. This study uses the triangle power method, This method is used if the data known are active power (P) and real power (S) as well as the actual power factor (cos?_1) and the desired power factor (cos?_2). The results showed that after the capacitor bank was installed on the bus that experienced a decrease there was an increase in voltage with an increase in value of bus 45 of 19.62 kV, bus 45 of 19,617 kV, bus 47 of 19,616 kV, and bus 49 of 19,615 Kv. When the declining buses ((43,45,47 and 49) are installed with bank capacitors, an increase in voltage on these buses results in an increase in voltage again.
Co-Authors Ade Arinia Rasyad Aldiansyah, Aldiansyah Anwar, Wiwin Oktaviani Danus, Muhar Dillah, Riyan Kurnia Fahmi Hidayat Feby Ardianto Hurairah, Muhammad Karim, Khoirul Novid, Muhammad Ade Oktaviani, Wiwin Armoldo Purwanto, Ricky Saleh, Zulkiffli Saleh, Zulkiffli Saputra, Try Edo Savitri, Nina Sofiah Sofiah Sofian, Ian Mochamad Suppermen, Suppermen Syarif, Nugraha Taufik Barlian Yuniarti, Erliza