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Microgrid Design in Electricity Supply in Paper Factories Arief Pratomo Sitompul; Dhami Johar Damiri
International Journal of Social Service and Research Vol. 3 No. 8 (2023): International Journal of Social Service and Research (IJSSR)
Publisher : Ridwan Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/ijssr.v3i8.475

Abstract

Renewable energy is growing, one of which is by controlling solar energy. A solar power plant (PLTS) is a power generation system that utilizes solar energy to become electrical energy through photovoltaic modules, which are included in environmentally friendly energy so that it becomes a renewable, effective, more efficient, and reliable plant. The research designing the modeling of PLTS on a grid was carried out on the roof of a gas power plant (PLTG) which generated 164.47 MWh / year. Analyzing modeling in the addition of the Rooftop Solar System that enters the network can reduce exhaust emissions from the use of other equipment for four years with an average of PLN by 99.29%, PLTG #1 by 99.06 and PLTG #2 by 99.11%. The impact of the addition of the PLTS Rooftop on the quality of power entering the 3.3 kV network system is seen that the feeder 2-panel bus has improved to 97.82% of the voltage drop of 72.67% in line with the PLN 3 panel, the improvement is made by providing capacitors of 3x4Mvar. Feeder 3 improved to 97.61% of the voltage drop of 78.87%, in line with the PLN 4 panel. The improvement was carried out by providing a capacitor of 2x4Mvar. Panel feeder four was seen to have improved to 99.21% from an excess voltage of 109.23% in line with the generating equipment, and the improvement was made by reducing capacitors by 0.1 Mvar from the used 5x0.1 Mvar.
RANCANG BANGUN APLIKASI SISTEM CERDAS PENILAIAN KEPEMIMPINAN BERDASARKAN TEST PAPI KOSTICK Hesty, Fathia; Damiri, Dhami Johar
Jurnal Algoritma Vol 13 No 1 (2016): Jurnal Algoritma
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/algoritma/v.13-1.122

Abstract

Personality and Preference Inventory (PAPI) Kostick adalah salah satu alat tes penilaian kepribadian terkemuka yang digunakan oleh para profesional HR dan manajer untuk mengevaluasi perilaku dan gaya kerja individu. Penilaiannya masih bersifat manual, sehingga diperlukan waktu dan tingkat ketelitian dalam melakukan skoring. Penilaian PAPI Kostick dapat dibentuk dengan sistem cerdas dengan pendekatan metode fuzzy, dengan dasar pengalaman pada pakar dibidang psikologi. Metode yang digunakan adalah metodologi berorientasi objek dengan pendekatan Unified Software Development Process oleh Nugroho pada tahun 2010 dan pemodelan Unified Modelling Language. Pembuatan interface aplikasi menggunakan pemrograman berbasis desktop dan untuk databasenya menggunakan MYSQL. Dengan adanya aplikasi ini dapat membantu untuk menampilkan informasi yang dibutuhkan dengan lebih cepat, tepat dan akurat terutama dalam skoring dan pembuatan laporan seorang pakar psikolog untuk perusahaan yang menggunakan jasanya.
THD analysis and its mitigation using DSTATCOM integrated with EV charging station in the distribution network Dhami, Kavita; Saggu, Tejinder Singh
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 3: September 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i3.pp1990-1997

Abstract

With the increase in carbon emissions, noise pollution and other environmental impacts caused by conventional vehicles, the demand for electric vehicles (EVs) is continuously increasing in the market. The transport sector has also been revolutionized with the use of EVs. The unique features such as reduction in noise pollution, carbon emissions and running costs and the capability of EVs to work in both grid-vehicle (G2V) and vehicle-grid (V2G) have made EVs popular nowadays. Still, it has several effects on the power distribution grid. There are several power issues due to the incorporation of electric vehicles (EVs) in the distribution network such as voltage instability, harmonics, and voltage fluctuations. This research paper focuses mainly on the harmonics caused in the system when EVs are connected to the distribution side. A distributed static compensator (DSTATCOM) based on the d-q theory is introduced to mitigate the harmonics along with the improvement in the voltage profile of the distribution side. By using MATLAB Simulink, the performance of DSTATCOM is validated and the comparison of the proposed approach is also done with that of similar work already existing in the literature.
Design and Simulation of On-Grid Rooftop Solar Power Plant (Rooftop PV) System on Office Buildings with a PLN Grid System DAMIRI, DHAMI JOHAR; LAMANIA, ROBERTUS RICHARD LAKSANA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 11, No 1: Published January 2023
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v11i1.231

Abstract

ABSTRAKEnergi Terbarukan memiliki peranan penting didalam pengembangan energi di Indonesia. Salah satu Penggunaan Energi terbarukan yang dapat diterapkan adalah energi matahari dari PhotoVoltaic (PV). Penggunaan PV di atap dengan kondisi terhubung jaringan ke sistem disebut Sistem PLTS Atap On Grid. Penelitian ini merencanakan pemasangan Sistem PLTS On Grid di Gedung Perkantoran PT.PLN UP3 Samarinda. Dari perancangan yang telah dilakukan dengan luas area atap sebesar 919,18 m2 menghasilkan 124,640 Kwp berdasrkan simulasi helioscope. Sementara itu didapat GHI (Global Horizontal Irridiance) sebesar 126.51 KWh/m2/yr, energi produksi 144.119 KWh/yr dan Performa Ratio yang dihasilkan sebesar 77.4 %. Peralatan ALL-TEST PRO On-Line II menghasilkan data beban pada Gedung Perkantoran. Simulasi HOMER menghasilkan Sistem PLTS Atap On Grid dan SIstem PLN sebesar 181,718 KWh (55.8%) dan 144.119 KWh (44.2%). Meter EXIM digunakan sebagai impor ekspor energi didalam Sistem.Kata kunci: Energi Terbarukan, Sistem PLTS Atap On Grid, Meter EXIM ABSTRACTRenewable energy is essential in developing energy use in Indonesia. One applicable renewable energy uses solar energy from PhotoVoltaic (PV). Rooftop PV with a network-connected condition to the system is called the On-Grid Rooftop solar power plant System. This research install the On-Grid Rooftop PV System in the office building of PT. PLN UP3 Samarinda. The design that has been prepared with a roof area of 919.18 m2 simulates that it will produce 124,640 KWp based on helioscope simulation. Meanwhile, the GHI (Global Horizontal Irradiance) is 126.51 KWh/m2/yr, with energy production of 144,119 KWh/yr and the Performance Ratio is 77.4%. The ALL-TEST PRO On-Line II Equipment generates a load on the Office Building. With the HOMER simulation, the On-Grid Rooftop solar PV System and the PLN System distribution is 181,718 KWh (55.8%) and 144,119 KWh (44.2%). An EXIM Meter is needed as an energy export import inside System.Keywords: Renewable Energy, System PLTS Rooftop On Grid, Meter EXIM
Automatic Water Level and Pressure Control System Prototype Design Using Programmable Logic Controller and Human Machine Interface Hajar, Ibnu; Damiri, Dhami Johar; Sitorus, Meyharth Torsna Bangkit
International Journal of Advanced Science Computing and Engineering Vol. 5 No. 2 (2023)
Publisher : SOTVI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/ijasce.5.2.127

Abstract

Water level control and pressure control are implemented in many at several industrial processing such as water dam, petrochemical processing plant, pharmacy and food processing plant, overhead tank, waste processing plant, electricity plant, etc. This study analyses a simulation and a needed components for automatically water level control system implementation using programmable logic controller (PLC). The water level control using PLC is designed to control the water level and prevent waste the water from a water tank. PLC is one of devices of automated controller which mostly used. Use of PLCs in industries are indispensable to control parameters which required high precision. In this research studies water level control system using PLC as primary controller and human machine interface (HMI) as remote controller that could visualize state of a system work (plant) in real time on computer screen and could gather field data as well. Main device for this research is Omron PLC CP2E type and touchscreen HMI Omron. At the prototype is used a water tank and a water container (to be one with the water resource), and in the HMI is showed the pages of home, control panel, and plant. From the result of the diagram ladder and the HMI design are got the system run well. The application from this research could be learning media in the system control laboratory for the subject of industrial control system and the others, related to it.
Centralized Design and Analysis of Fiber Optic Communications on Universitas Garut Sani, Sani Moch Sopian; Dhami, Dhami Johar Damiri; Folin Oktafiani; Mokhammad Mirza Etnisa Haqiqi; Tri Arif Wiharso
Telekontran : Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan Vol. 13 No. 2 (2025): TELEKONTRAN vol 13 no 2 Oktober 2025
Publisher : Program Studi Teknik Elektro, Fakultas Teknik dan Ilmu Komputer, Universitas Komputer Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/telekontran.v13i2.17492

Abstract

In response to the increasing digital demands in higher education, this study investigates the design and feasibility of a centralized fiber optic communication system to support high-speed, reliable, and scalable network infrastructure at Universitas Garut. The proposed system replaces legacy copper-based and wireless networks that suffer from limited bandwidth and high signal loss, with a centralized topology using ITU-T G.652.D single-mode fiber to interconnect four campus buildings. A comprehensive design process was conducted, including route mapping based on GIS data, device selection, and technical performance analysis. Link budget and rise time budget calculations were performed to evaluate power losses, signal integrity, and feasibility over distances ranging from 1.4 to 2.14 km. Results show that received power levels across all routes remain significantly above the receiver sensitivity threshold of −24 dBm, with total losses under 13 dB, and rise time values under 40 ps, far below the 4501 ps limit for NRZ systems at 155.52 Mbps. These findings confirm that the proposed architecture ensures both signal strength and timing performance without the need for amplification or dispersion compensation. The system is proven technically feasible, cost-effective, and scalable to accommodate future digital services such as VoIP, CCTV, and campus-wide high-speed internet.
Implementasi Termoelektrik Generator dengan Pemanfaatan Limbah Kelapa sebagai Pembangkit Listrik Damiri, Dhami Johar; Pane*, Muhammad Firdaus
JIM: Jurnal Ilmiah Mahasiswa Pendidikan Sejarah Vol 8, No 4 (2023): Agustus, Social Religious, History of low, Social Econmic and Humanities
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jimps.v8i4.25906

Abstract

Dalam memanfaatkan limbah hasil dari pertanian yaitu berupa buah kelapa seperti serabut dan tempurung kelapa menjadi salah satu bahan bakar energi terbarukan. Serabut kelapa dapat dijadikan sumber bahan baku dalam pembuatan karbon aktif. Penelitian ini merancang alat berupa pemanfaatan termoelektrik jenis TEC1-12706 dengan memanfaatkan panas dari hasil pembakaran limbah tempurung dan serabut kelapa. Hasil pembakaran dapat menghidupkan beban berupa pompa DC, lampu DC, dan kipas DC dengan total 14,22 watt. Pada pengujian ini didapatkan tempurung kelapa dengan massa bahan 300gram, dapat menyalakan beban saat 21 menit, T 31 dan daya 4,68 watt serta diserabut kelapa pada waktu 30 menit, T 27,6 dengan daya sebesar 4,41 watt. Kemudian pengujian tempurung kelapa sebesar 600 gram saat pada pengujian 15 menit, T 42 dan menghasilkan daya 5,15 watt serta serabut kelapa pada waktu 27 menit, T 27, dan daya 4,41 watt sudah menyalakan beban. Dan 900 gram pada tempurung kelapa, dapat menyalakan beban saat 15 menit, T 42 dengan daya 6,01 watt serta serabut kelapa pada waktu 27 menit, T 28,6 dan daya 4,61 watt. Namun pengujian serabut kelapa sebesar 1200 gram tidak dapat dibandingkan karena kuantitas serabut kelapa sudah mencapai maksimum dari ruang media pembakaran sedangkan tempurung kelapa berhenti pengujian dikarenakan rusaknya elemen termoelektrik karena mencapai suhu maksimum.