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All Journal International Journal of Electrical and Computer Engineering PROtek : Jurnal Ilmiah Teknik Elektro Jurnal Abdi Insani Jurnal Nasional Teknik Elektro dan Teknologi Informasi
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Pemodelan dan Simulasi Photovoltaic Menggunakan Pendekatan Model Tiga Diode Usman; Ahmad Rosyid Idris; Sofyan; Irfan Syamsuddin
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 9 No 4: November 2020
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1602.625 KB) | DOI: 10.22146/jnteti.v9i4.688

Abstract

Photovoltaic (PV) performance measurement requires a conditioned environment, which are conditions of solar radiation and temperature standard, thus, a special equipment is required. A simple way to do this is by modeling the PV. The method used to describe the characteristics of PV is equalizing the maximum power of model with the maximum power from datasheet, which is implemented in MATLAB. The simulation results show that the difference between ????????????,???? and ????????????,???? is 0.000314 W and the average absolute error of current, compared to measurement, is 2.159%. The I-V curves obtained in this model are also very identical to the I-V curves using two diode approach or one diode model. The simulation results of this model are also compared to the same model, using the MRFO, SFO, COA, WOA, SA, and GA algorithms, which shows high similarities. I-V curves are strongly influenced by the constants ????, ????????, and ????????. The constant ???????? affects the curvature of the I-V curve, to be precise the curvature at ????????, ????????. Whereas ???????? affects the curvature of the I-V curve before ????????, ???????? and ???????? after ????????, ????????.
Penentuan Keandalan Sistem Distribusi 20 KV Penyulang Malili dengan Metode Section Technique dan FMEA Usman Usman; Indra Indra; Muhammad Thahir; Sofyan Sofyan; Ahmad Rosyid Idris; Sarma Thaha
PROtek : Jurnal Ilmiah Teknik Elektro Vol 9, No 2 (2022): PROtek : Jurnal Ilmiah Teknik Elektro
Publisher : Program Studi Teknik Elektro Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/protk.v9i2.4985

Abstract

This paper discusses the determination of the reliability index of the power distribution system. The reliability of the power distribution system is strongly influenced by the duration and frequency of the disturbance, causing customers not to receive electrical energy. This reliability is measured by indices called SAIFI, SAIDI, and CAIDI. The method used to calculate the failure rate required to determine the reliability indexes are the section technique and Failure Mode Effect Analysis (FMEA). The results obtained using the FMEA method are better results. Compared to PLN's SAIFI and SAIDI standards, the Malili feeder is still quite reliable, because its value is smaller than the PLN standard. However, when compared to the IEEE standard, this Malili feeder is not categorized as reliable because the SAIFI value obtained is still higher. While for SAIDI the value is still below the IEEE standard. To improve the reliability index of this feeder, it is necessary to add a protection component to localize the fault.
Determination of location and capacity of distributed generations with reconfiguration in distribution systems for power quality improvement Ontoseno Penangsang; Muhammad Daffa Cahyonoputra; Dimas Fajar Uman Putra; Muhira Dzar Faraby; Sofyan Sofyan; Akhyar Muchtar
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 1: February 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i1.pp28-38

Abstract

The use of non-linear loads and the integration of renewable energy in electricity network can cause power quality problems, especially harmonic distortion. It is a challenge in the operation and design of the radial distribution system. This can happen because harmonics that exceed the limit can cause interference to equipment and systems. This study will discuss the determination of the optimal location and capacity of distributed generation (DG) and network reconfiguration in the radial distribution system to improve the quality of electric power, especially the suppression of harmonic distribution. This study combines the optimal location and capacity of DG and network reconfiguration using the particle swarm optimization method. In addition, this research method is implemented in the distribution system of Bandar Lampung City by considering the effect of using nonlinear loads to improve power quality, especially harmonic distortion. The inverter-based DG type used considers the value of harmonic source when placed. The combination of the proposed methods provides an optimal solution. Increased efficiency in reducing power losses up to 81.17% and %total harmonic distortion voltage (THDv) is below the allowable limit.
IMPLEMENTASI SISTEM POMPA AIR TENAGA SURYA TIPE BATTERY COUPLED DAN WEBSITE PEMASARAN PADA KELOMPOK TANI PAKKOKO KA'JUNG Usman Usman; Muhammad Nur Yasir Utomo; Alamsyah Achmad; Sofyan Sofyan; As'ad Ramadhan; Fikra Ramadhan; Nurhadi Sasono
Jurnal Abdi Insani Vol 10 No 4 (2023): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v10i4.1134

Abstract

The source of water for irrigating shallot plants in the Kelompok Tani Pakkoko Ka'jung comes from Pamsimas. The irrigation method, the water that has been collected in the pool, is then pumped with a gasoline engine-driven pump machine, thus increasing production costs, in addition to water payments from Pamsimas. On the other hand, the method of marketing the harvest is through direct sales to village markets near the partners. The purpose of this activity is to reduce production costs in this case the cost of pump fuel in the process of watering shallot plants, and create a website-based method of selling or marketing crops. The implementation of this program began with a survey to identify problems, discussions to determine problem-solving, and planning to determine the capacity of SPATS and website platform and design. The Implementation consisted of installation, training on SPATS operation and maintenance, and training on website content updates. The implemented SPATS consists of 1820 Wp solar panel, 3 kW inverter, 864 Wh battery and 1 kW pump. Meanwhile, the marketing website was built with the wordpress platform. The SPATS commissioning results show good performance, where the inverter output parameters such as voltage, frequency and power factor show the same thing as the parameters generated by the PLN network. The training on the operation and maintenance of SPATS as well as training on updating the content of the partner website independently has been able to operate SPATS and update the website content that has been made. The implementation of battery-coupled SPATS significantly reduces production costs. Meanwhile, the website as a marketing medium provides a new way of marketing.
Co-Authors Ahmad Rosyid Idris Ahmad Rosyid Idris Akhyar Muchtar Alamsyah Achmad As'ad Ramadhan Dimas Fajar Uman Putra Fikra Ramadhan Indra Indra Irfan Syamsuddin Muhammad Daffa Cahyonoputra Muhammad Nur Yasir Utomo Muhammad Thahir Muhira Dzar Faraby Nurhadi Sasono Ontoseno Penangsang Sarma Thaha Usman Usman