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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) International Journal of Reconfigurable and Embedded Systems (IJRES) International Journal of Applied Power Engineering (IJAPE) Majalah Ilmiah Teknologi Elektro The Journal of Experimental Life Sciences (JELS) Jurnal Teknik Elektro TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Indonesian Journal of Electrical Engineering and Informatics (IJEEI) JURNAL NASIONAL TEKNIK ELEKTRO Proceeding of the Electrical Engineering Computer Science and Informatics Arty: Jurnal Seni Rupa Jurnal SOLMA JURNAL MUQODDIMAH : Jurnal Ilmu Sosial, Politik dan Hummaniora Buletin LOUPE (Laporan Umum Penelitian) Indonesian Journal of Electrical Engineering and Computer Science International Journal of Electrical, Energy and Power System Engineering (IJEEPSE) Jurnal Kepastian Hukum dan Keadilan Andalasian International Journal of Applied Science, Engineering, and Technology Akuntansi'45 COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Andalas Journal of Electrical and Electronic Engineering Technology Jurnal Andalas: Rekayasa dan Penerapan Teknologi Jurnal Rekayasa elektrika JAMBIS : Jurnal Administrasi Bisnis Eduarts: Jurnal Pendidikan Seni
Syafii .
Electrical Engineering, Dept., Engineering Faculty, Universitas Andalas
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Neuroscience Social Sciences Other

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Analisa Operasi Ekonomis Pembangkit Termal untuk Melayani Beban Puncak Sistem Kelistrikan Sumbar Syafii Syafii; Kartika Ika Putri
JURNAL NASIONAL TEKNIK ELEKTRO Vol 7, No 1: March 2018
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (782.557 KB) | DOI: 10.25077/jnte.v7n1.458.2018

Abstract

The economical operation of electric power systems is an important aspect in energy system management. The research aim is analyzing the economical operation of thermal generators by performing calculations to obtain optimal power and minimum generation costs, using the lamda iteration method. The case study of the operation of the plant in serving the peak load is taken on the West Sumatera electrical system with the assumption that the thermal generator units used are the PLTD, PLTG Pauh Limo, and PLTU Ombilin power plant. The power demand (PD) to be serviced by the thermal generator is 76.8 MW taken from 15% of maximum load duration curve 512 MW. The distribution of load demand for each thermal generating unit obtained through the economic dispatch calculation. The resulted of economical operation of the thermal generator P1 = 1,25 MW, P2 = 15,867 MW, and P3 = 59,683 MW with total generation cost 57,295,977.57 IDR/h. The calculation and comparison with other configuration scheduling results showed that by using economic dispatch method in power generation scheduling, has obtained efficient generation configuration with minimum operating cost to serve the peak load. Thus, the generation cost can be saved as the generation capacity can be optimized or operated in accordance with the calculation of economic operation.Keywords : Thermal Power Plant, Economic Dispatch, Lamda Iteration MethodAbstrakOperasi ekonomis sistem tenaga listrik merupakan aspek penting dalam manajemen sistem energi. Penelitian ini bertujuan melakukan analisa operasi ekonomis pembangkit termal dengan melakukan perhitungan untuk mendapatkan daya yang optimal serta biaya pembangkitan minimum, dengan  menggunakan metode iterasi lamda. Studi kasus operasi pembangkit dalam melayani beban puncak diambil pada sistem kelistrikan Sumbar dengan asumsi unit pembangkit termal yang digunakan adalah PLTD, PLTG Pauh Limo, dan PLTU Ombilin. Besar daya beban (PD) yang akan dilayani oleh pembangkit termal tersebut diambil 15 % dari kurva lama beban harian maksimum 512 MW yaitu 76,8 MW. Pembagian pembebanan untuk masing-masing unit pembangkit termal diperoleh melalui perhitungan economic dispatch. Hasil perhitungan operasi ekonomis untuk masing-masing pembangkit termal tersebut adalah P1 = 1,25 MW, P2 = 15,867 MW, dan P3 = 59,683 MW dengan total biaya pembangkitan Rp 57.295.977,57 per jam. Hasil perhitungan dan perbandingan dengan konfigurasi penjadwalan lainnya memperlihatkan bahwa dengan menggunakan perhitungan operasi ekonomis dalam penjadwalan pembangkit, telah diperoleh konfigurasi pembangkitan yang efisien dengan biaya operasi minimum untuk melayani beban puncak.  Dengan demikian biaya pembangkitan dapat dihemat sekirannya kapasitas pembangkitan dapat dioptimalkan atau dioperasikan sesuai dengan hasil perhitungan operasi ekonomis.Kata Kunci :  Pembangkit Termal, Economic Dispatch, Metode Iterasi Lamda
Tracker Tiga Posisi Panel Surya untuk Peningkatan Konversi Energi dengan Catu Daya Rendah Welly Yandi; Syafii Syafii; Ali Basrah Pulungan
JURNAL NASIONAL TEKNIK ELEKTRO Vol 6, No 3: November 2017
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1470.277 KB) | DOI: 10.25077/jnte.v6n3.468.2017

Abstract

This article describes the use of a three-position tracker to increase the conversion of electrical energy from the sun with a low power supply. The three-position tracker system has been tested using two identical solar panels with 250 Wp capacities mounted flat and with tracker. The testing process carried out for 3 days in the top of the building Department of Electrical Engineering Andalas University of Padang. The test results show the average percentage increase in energy conversion is 0.263 kWh / day or 27.9% per day. While the energy requirement for three position tracker actuator are 0.624 Wh / day and track control system of 18 Wh / day. So that the energy consumption of tracker system three positions is equal to 0.0186 kWh / day. This is because the three-position tracker system uses actuators with DC motors equipped with a gearbox so that the tracker's torque becomes greater. Energy consumption for tracker control using arduino is greater than tracker energy itself because the control is always active for 24 hours. While the three-position tracker is only active for 100 seconds. Thus, the energy consumption used by the three-position tracker system is much smaller than the increase in energy conversion produced by solar panels.Keywords : Three position tracker, Increased solar panel energy conversionAbstrak Artikel ini memaparkan tentang penggunaan tracker tiga posisi untuk meningkatkan konversi energi listrik dari matahari dengan catu daya rendah. Sistem tracker tiga posisi telah diuji menggunakan dua buah panel surya yang identik dengan kapasitas 250 Wp yang dipasang flat dan dengan tracker. Proses pengujian dilakukan selama 3 hari di atas gedung Jurusan Teknik Elektro Universitas Andalas Padang.  Hasil pengujian menunjukkan  persentase rata-rata peningkatan konversi energi sebesar 0,263 kWh/hari atau 27,9% per hari. Sedangkan kebutuhan energi untuk aktuator tracker tiga posisi sebesar 0,624 Wh/hari dan sistem kontrol tracker sebesar 18 Wh/hari. Sehingga besar konsumsi energi sistem tracker tiga posisi adalah sebesar 0,0186 kWh/hari. Hal ini disebabkan karena sistem tracker tiga posisi menggunakan aktuator dengan motor DC yang dilengkapi gearbox sehingga kemampuan torsi tracker menjadi lebih besar. Konsumsi energi untuk pengontrolan tracker menggunakan arduino lebih besar dibandingkan energi tracker itu sendiri karena pengontrolan selalu dalam keadaan aktif selama 24 jam. Sementara tracker tiga posisi hanya aktif selama 100 detik. Dengan demikian, konsumsi energi yang digunakan oleh sistem tracker tiga posisi jauh lebih kecil dibandingkan peningkatan konversi energi yang dihasilkan panel surya.Kata Kunci : Tracker tiga posisi, Peningkatan konversi energi panel surya
Feasibility Study of Rooftop Grid Connected PV System for Peak Load Reduction Syafii Syafii; Novizon Novizon; Wati Wati; Dona Juliandri
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 5: EECSI 2018
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (334.777 KB) | DOI: 10.11591/eecsi.v5.1652

Abstract

This paper presented the economic feasibility analysis of grid-connected photovoltaic on the roof of building, to reduce peak electrical demand. The Engineering Faculty electrical system is used as case study of PV system economic feasibility. The economic calculation assumptions used are: electricity tariff IDR 1114.74 per kWh based on electricity tariff for medium voltage load, estimated annual module degradation 0.5% and the life expectancy of the solar panels 25 years. The interest rate using of Bank Indonesia (BI) rate for 2018 i.e. 4.25% and inflation rate 3% also considered. The initial investment required to build 117.5 kWp PV system is IDR 2,413 million. The operational and maintenance costs are estimated 1% of initial investment per year. The result of cash flow rate shows that a positive NPV is achievable and payback period less then solar panels life expectancy. The simple payback period is 11 years and discounted payback period calculated by consider multiple parameters to be 14 years. The result of economic analysis using current rate value indicate that the project is profitable.
A Review of Solar Tracker Control Strategies Ali Basrah Pulungan; Lovely Son; Syafii Syafii
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 5: EECSI 2018
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (294.03 KB) | DOI: 10.11591/eecsi.v5.1658

Abstract

The efficiency of solar panels is an interesting study now, due to the limitation of material capabilities used in the manufacture of solar panels. The increasing of the received radiation intensity from the sun is a way to improve the performance of solar panels. In this paper will be exposed increased efficiency of solar panels using the method of tracking the sun. The commonly used sunlight tracking is an active tracker, due to significant efficiency improvements compared to passive trackers. The active tracker consists of a single axis and a double axis, both of which use a motor as a driver. This motor is controlled using a microcontroller or a programmable logic controller (PLC). Furthermore, the automatic tracker based on microcontroller or programmable logic controller (PLC) on single axis or double axis which is implemented and can be tested in real time or periodically.
Optimal Sizing of Micro Hydropower to Improve Hybrid Renewable Power System Syafii Syafii; Heru Dibyo Laksono; Novizon Novizon; Rahmad Fahreza
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 7, No 1: EECSI 2020
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eecsi.v7.2094

Abstract

This paper presents an analysis of optimal micro hydropower (MH) capacity of hybrid systems to improve renewable energy based power systems. The electricity system was designed by considering river water flow data and solar radiation data at the research location, Andalas University. Optimal results obtained for the configuration of the Grid, MH, and PV with a head height of 30 m and a flow rate of 800 L/s with the lowest COE value of $ 0.065. As an optimal sizing system has been able to increase the composition of renewable energy generation in the Unand electrical network. The renewable energy fraction has increased from 26.4% to 36.5%. Therefore, determining the optimal capacity will increase the use of renewable energy generation. Conversely, an increase in electricity supply from renewable energy plants will reduce electricity consumption from the PLN grid. The latest excess power generation at a low load can be sold to the PLN grid
Home Industry Powered Grid-Connected PV System an Economic Feasibility Study Kartika Sri Kumala Sari; Wati Wati; Syafii Syafii
Andalas Journal of Electrical and Electronic Engineering Technology Vol. 1 No. 2 (2021): November 2021
Publisher : Electrical Engineering Dept, Engineering Faculty, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (246.244 KB) | DOI: 10.25077/ajeeet.v1i2.16

Abstract

This paper presents an analysis and feasibility of grid connected PV System for small scale home industry of welding workshop in Kambang Pesisir Selatan, Indonesia. The purpose of this paper is to analyze the feasibility of the on-grid PV system and obtain a comparison of the simulation results between the PV connected and only grid. The optimization results show that a feasible and optimal design configuration is a gid-connected PV system consisting of a Grid, PV system 3.48 kW, and a 5 kW inverter because it has a large intensity of solar radiation, which produces an economical generating system with a COE of Rp. 829/kWh, smaller than the basic cost of electricity provision that has been determined by the Ministry of Energy and Mineral Resources, which is IDR 1,058/kWh, in accordance with the criteria, the project is feasible to build.
Online Monitoring of Grid Connected Residential Photovoltaic System using Zigbee and Web Server Syafii Ghazali; Roni Putra; Hasdi Putra
Indonesian Journal of Electrical Engineering and Computer Science Vol 7, No 3: September 2017
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v7.i3.pp668-675

Abstract

The paper presents grid-tied PV monitoring system using wireless sensor networks.  The temperature and humidity parameters were measured using DHT22. While ACS 712 5A current sensor and Arduino voltage sensor modules were used to measure photovoltaic output current and voltage respectively. Web application has been developed in the base station using PHP programming web server to access the sensor nodes through Zigbee wireless data communication. The user can access the HTML web interface of Photovoltaic monitoring system through local Ethernet or Wi-Fi connection. The residential 1.25 kWp grid connected photovoltaic system used to test the developed monitoring system. The data received exactly same as data sensed from remote area with average delay time 3 to 4 seconds. The result shows the photovoltaic power generation caracteristics under clear sky, cloud cover, and rainy weather conditions. The power 608.12 Wp has been generated by the solar panel from 7.00 am to 6.00 pm or 6.7 kWh per day during clear sky. During intermittent cloud covered the photovoltaic power graph have shown fluctuation power profile and energy conversion were decreased as well as in raining weather condition. The electrical power has been generated by photovoltaic for almost 12 hours per day in tropics area, but energy conversion is highly influenced by weather conditions, especially cloud cover, overcast and rainy.
Design of arduino-based loading management system to improve continuity of solar power supply Muhardika Muhardika; Syafii Syafii
Indonesian Journal of Electrical Engineering and Computer Science Vol 20, No 3: December 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v20.i3.pp1677-1684

Abstract

Solar power plants using environmentally friendly technology in the process of harvesting energy from the sun can be a solution to the future electricity crisis so that it has been the most widely developed and reliable alternative. However, the conversion of solar energy depends on the availability and conditions of sunlight. In sunny conditions, the PV system can serve large loads while charging the battery to the maximum. While in cloudy weather conditions or at night, the PV system serves the load and without charge of the battery. The battery will discharge the stored energy until it runs out, and the supply to the load will be cut off before the desired time. Therefore, research on the PV system loading management system is needed to increase the amount of electricity from solar energy and maintain the continuity of electricity supply to the load. The load power management strategy follows the conditions of sunny, cloudy, rainy, or night time by considering the remaining capacity of the battery that can be used. Load installations are designed to consist of low, medium, and high load installations. Simulation results show that the use of PV loading management strategies can increase the operating time of the PV system. When the remaining less than 10% battery capacity and PLN supply is available, the supply will be switched to PLN. The remaining 10% of PV battery capacity could be used to maintain electricity supply to a low load if the PLN supply interrupted. Thus, the use of a loading management strategy will increase the electricity supply from renewable energy and improve the sustainability of electricity supply.
Catu Daya Tenaga Surya Sebagai Cadangan Listrik Pondok Pasantren di Teluk Buo, Padang Syafii Syafii; Adrianti Adrianti; Muhammad Nasir; Syukri Yunus
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 2 No. 1 (2022): Juni 2022
Publisher : Jurusan Teknik Elektro, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.499 KB) | DOI: 10.25077/jarpet.v2i1.22

Abstract

Kegiatan pengabdian penyediaan catu daya tenaga surya sebagai cadangan listrik Pondok Tahfidz Teluk Buo telah dilakukan. Catu daya ini dapat dimanfaatkan sebagai alternatif cadangan ketersediaan tenaga listrik saat terputusnya suplai tenaga listrik dari PLN. Catu daya listrik panel surya ini terdiri dari 2 unit panel surya 150 Wp, inverter 850 VA, dan 2 unit baterai @100 Ah. Baterai dapat diisi ulang dengan menggunakan daya listrik dari panel surya pada saat matahari bersinar (pagi sampai sore hari) untuk selanjutnya dapat digunakan pada saat terputusnya suplai tenaga listrik dari PLN. Catu daya tenaga surya memiiki keunggulan dibandingkan genset diesel krena tidak bising dan tidak membutuhkan bahan bakar minyak. Semoga ke depan proses pendidikan tahfidz qur’an dapat berjalan dengan baik meskipun listrik PLN padam. Kemajuan Pondok Tahfidz menjadi kemajuan warga di Teluk Buo.
Pemeliharaan dan Perbaikan Instalasi Listrik Pondok Tahfidz Darul Hijrah Wal Amanah Muhammad Nasir; Adrianti Adrianti; Syafii Syafii; Syukri Yunus
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 2 No. 2 (2022): Desember 2022
Publisher : Jurusan Teknik Elektro, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jarpet.v2i2.35

Abstract

Ketersediaan catu daya cadangan saat terjadi pemadaman listrik PLN sangat dibutuhkan di Pondok Tahfidz Darul Hijrah Wal Amanah, Teluk Buo, Padang. Catu daya cadangan bertenaga surya yang sudah dimiliki perlu dilakukan pemeliharaan agar awet dan berfungsi maksimal. Demikian juga dengan instalasi listrik pada area pondok yang masih memiliki banyak kekurangan. Departemen Teknik Elektro Universitas Andalas telah melakukan kegiatan Pengabdian Masyarakat di Pondok Tahfidz tersebut dengan tujuan melakukan pemeliharan catu daya cadangan dan perbaikan pada instalasi listrik di area Pondok. Kegiatan pengabdian dimulai dengan perencanaan, survei dan pengecekan, perbaikan dan diakhiri dengan kegiatan pembimbingan/training pemeliharaan kepada pengelola Pondok. Hasil kegiatan pengabdian adalah catu daya cadangan dapat berfungsi dengan baik kembali dan instalasi listrik telah ditambahkan sehingga pemakaian listrik dapat lebih mudah dan juga efisien.
Co-Authors ., Cahayahati ., Delima ., Erliwati ., Kamshory Abadi, Akbar Aditio Pribadi, Rizki Adrianti Adrianti Adrianti, Adrianti Agung W. Setiawan Akshar, Muh Alex, Taman Ali Basrah Pulungan Almoataz Youssef Abdelaziz Andi Pawawoi Andrivo Rusydi Arnawan Hasibuan Arya, Engla Harda Asrizal . Aswardi Aswardi Aulia Aulia Aulia Aulia Axel Doriza Azhari Zakri , Azriyenni Azizah, Farah Azriyenni Azhari Zakri Azzahrah, Nadia Fatimah Beni Nugroho, Dionysius Benriwati Maharmi Budi Endarto Cahayahati . Chamdani, Chamdani Dadan Ramdan Danas, Aidil Darmana, Ija Dawam Habibullah Dawam Habibullah Delima . Dina Maizana Dona Juliandri Edyan Noveri Elmiyasna Kimin Elysia Sholiha, Almira Rahma Endang Tri Wahyuni Erliwati . Fahreza, Rahmad Fajril Akbar Farah Azizah Fierda Nurany, Fierda Fikriyatullatifah, Anisa Fitriyan, Rahmawati Gumilar, Candra Habib Satria Habib Satria Habibullah, Dawam Hanalde Andre Handayani, Mia Putri Hasdi Putra, Hasdi Herris Yamashika Herris Yamashika Heru Irianto Ija Darmana Ika Putri, Kartika Ilham Cholid Ilhamdi Rusydi, Muhammad Imam Fauzi Ath Thaariq Indrajaja, Nobella Indri Dayana Irfan El Fakhri Ita Merni Patulak Jaka Windarta Juliandri, Dona K. M. Nor K. M. Nor K. M. Nor Kamsidjo Budi Utomo Kamsory Kamsory, Kamsory Kartika Ika Putri Kartika Sri Kumala Sari Khin Moe Moe Kurniawan, Sulistyo Agung Dwi Kusnadi, Sekar Ayumeida Laksono, Heru Dibyo Layrenshia, Belinda Leily Wustha Johar Liambana, Junlianty Lovely Son, Lovely M. Yonggi Puriza Maharmi, Benriwati Marroh, Zahrotul Isti'anah Matalata, Hendi Maulidi, M. Alfi Moe, Khin Moe Mohammad Taufiq Hidayat Monice Monice Moranain Mungkin Muhammad Fadlan Siregar Muhammad Hadi Putra, Muhammad Hadi Muhammad Imran Hamid Muhammad Khahfi Zuhanda Muhammad Nasir Muhammad Nurdin Muhammad Ridha Fauzi Muhardika Muhardika Mumtazah, Lutfia Anis Muzamir Isa Nasir, Hikmah Afifah Nasir, Muhammad Nofri Dodi Noor Azahra, Anggraeni Noviandri, Dian Novizon, Novizon Nur Izrillah, Imra Nurdin, Muhammad Nurmarini, Eva Perdana Putra, Ilham Prihadini, Diana Purwadhi Purwadhi Putri, Lusi Ngestina Rahmad B.Y Syah Rahmad Fahreza Rahmawati Fitriyan Refdinal Nazir Ricky Maulana Ridwan, Ridwan Rizka Hadelina Roni Putra Rudi Salam Rusydi, Muhammad Ilhamdi Salfikri, Iqbal Sapto Nisworo Since Yuliana Frans, Inggrid Slamet Raharjo Sugiono Sugiono Syah, Rahmad B. Y. Syah, Rahmad B.Y Syukri Yunus Tahrir, Muhammad Thoriq Kurnia Agung Thoriq Kurnia Agung Veranita, Mira Wati Wati Wati Wati Wati, Wati Welly Yandi Yandi, Welly Yona Mayura Yudi Arfan Yusdiansyah, Yusdiansyah Zahroni, Teguh Rizali Zarta, Abdul Rasyid Zulwisli .