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All Journal Foristek Mechatronics, Electrical Power, and Vehicular Technology SMARTICS Journal Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat JE-Unisla JESICA
Ratih Mar'atus Sholihah
Electrical Engineering Study Program, Faculty Of Engineering, Tadulako University, Palu, Indonesia
Religion Agriculture, Biological Sciences & Forestry Arts Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Social Sciences

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PENGARUH MODIFIKASI PADA ALGORITMA HILL CLIMBING UNTUK PELACAKAN TITIK DAYA MAKSIMUM PHOTOVOLTAIC MENGGUNAKAN SEPIC CONVERTER Ratih Mar'atus Sholihah; Irwan Mahmudi; Yuli Asmi Rahman; Sundun Sada Maripi
Jurnal JE-UNISLA : Electronic Control, Telecomunication, Computer Information and Power System Vol 8, No 1 (2023)
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/je-unisla.v8i1.1043

Abstract

Renewable energy is an alternative energy to reduce the use of fossil energy, one of the renewable energy used today is photovoltaic. photovoltaic converts solar energy into electrical energy. The efficiency of photovoltaic is very low, so a method is needed to get the maximum power. The method for getting maximum power from photovoltaic is called Maximum Power Point Tracking (MPPT). MPPT is a method to track the power point of an energy source to produce maximum power. There are various methods and ways to realize MPPT control, one of which is the Modified Hill Climbing Algorithm (MHC) . The algorithm determines the duty cycle setting on the SEPIC Converter. It is intended that the converter work at maximum power. In testing using measurement and calculation data, the average tracking efficiency value = 99.99486%, the average tracking speed value = 0.189978s and the average tracking power value = 50.56408 Watt. Modified Hill Climbing Method provides better tracking power and efficiency when compared to simple Hill Climbing, but makes the Steady state response time 0.1s longer.
Desain, Simulasi dan Evaluasi Biaya Pembangkit Listrik Tenaga Surya 5 MW di Universitas Tadulako menggunakan Pvsyst Irwan Mahmudi; sholihah, ratih mar'atus; Nurahani Amin; Oktadli Pratama Simbaju
Jurnal JE-UNISLA : Electronic Control, Telecomunication, Computer Information and Power System Vol 9 No 2 (2024): SEPTEMBER
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/je-unisla.v9i2.1313

Abstract

Energi matahari (solar) memberikan banyak manfaat bagi kehidupan manusia. Salah satu pemanfaatan energi surya yang dapat diimplementasikan adalah dalam bentuk Pembangkit Listrik Tenaga Surya (PLTS). Universitas Tadulako berkomitmen untuk melaksanakan PLTS secara mandiri. Salah satu upaya yang dilakukan adalah dengan memanfaatkan lahan yang luas sebagai lahan PLTS yang saling terhubung, yang sering disebut dengan PLTS on-grid atau grid-connected. PLTS on-grid merupakan sistem PLTS yang terhubung dengan jaringan distribusi PLN. Pada sistem ini, jaringan listrik PLN berperan sebagai penyalur atau penyambung arus listrik yang berasal dari panel surya yang disalurkan ke beban. Dari hasil pengukuran diketahui luas lahan kosong Universitas Tadulako menurut masterplan UNTAD sekitar 5 hektar. Melalui software PVSyst total daya yang dihasilkan oleh PV sebesar 5544 kWp dan total daya inverter sebesar 4620 kWac dengan total PV terpasang sebanyak 10080 panel. Panel tersebut terhubung dengan 42 inverter. Setiap satu unit inverter mempunyai 12 string dan setiap string pada inverter terdiri dari 20 panel surya. Dari hasil tersebut, investasi sistem PLTS di Universitas Tadulako diperkirakan mencapai Rp. 75.907.251.114,00.
Implementation of modified trapezoidal commutation scheme for speed control of 1 kW BLDC motor Sholihah, Ratih Mar'atus; Fahrul, Fahrul; Kurniawan, Adhika; Mahmudi, Irwan
Journal of Mechatronics, Electrical Power, and Vehicular Technology Vol 14, No 2 (2023)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/j.mev.2023.v14.127-137

Abstract

The commutation process in brushless DC (BLDC) motors is done electrically and depends on the rotor position feedback. The Six-Step method is the most commonly used method in BLDC control, as it is easy to implement. However, this method has a high root mean square (RMS) current. On the other hand, a perfect sinusoidal commutation method is very complicated. Therefore, this research proposes a simple modified scheme of trapezoidal commutation circuits that can produce sinusoidal BLDC output voltage. This circuit can still responsively control the speed of the BLDC motor. This scheme uses 2 Arduinos. Pulse width modulation (PWM) signal from Arduino2 is then combined with hall signals from Arduino1, resulting in six outputs which are modified electrical commutation signals. This commutation signal is used as a MOSFET controller in a 3-phase inverter to produce a sinusoidal waveform. The average efficiency obtained when implementing the commutation is 75 % at low and high speeds.
RANCANG BANGUN DC TO DC CONVERTER UNTUK SISTEM MONITORING SALINITAS AIR LAUT DENGAN PHOTOVOLTAIC SEBAGAI SUMBER ENERGI Samad, Mohammad Syafar; Adam, Ahmad Antares; Arifin, Yusnaini; Mahmudi, Irwan; Sholihah, Ratih Mar'atus
Foristek Vol. 14 No. 2 (2024): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v14i2.581

Abstract

Renewable energy is an energy source that can be utilized continuously and is available by nature. One example of using renewable energy is photovoltaic. Photovoltaic is a tool used to absorb solar energy and convert it into electrical energy using the photovoltaic effect method. This research aims to monitor the salinity (salt content) of sea water by utilizing solar energy using the Buck Converter type DC to DC Converter method to regulate and reduce the higher voltage to a lower voltage to be loaded on the microcontroller as the reading output. This research was designed using a 20 WP photovoltaic with a maximum voltage of 20 volts which functions as a power supplier or energy source whose voltage is then reduced by a buck converter circuit to a smaller voltage of 5 volts to be charged to the Arduino Uno in processing salinity measurement data using a TDS sensor. as a measuring tool. The test results of the equipment show that the DC to DC Converter circuit is successful in reducing the photovoltaic voltage so that it can operate the microcontroller.
Testing the Electrical Safety Aspects of The Emergency Shut Down Multi Indicator (Esin) Innovation Tool for Refueling De-Refueling Trucks (RDT) at The Mutiara Palu Aircraft Filling Depot Ratih Mar'atus Sholihah; Irwan Mahmudi; Lutfiyana Andi Anshar
ABDIMAS: Jurnal Pengabdian Masyarakat Vol. 7 No. 2 (2024): ABDIMAS UMTAS: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35568/abdimas.v7i2.4622

Abstract

As the commercial and trading subholding of PT Pertamina (Persero), Pertamina Patra Niaga also provides aviation fuel to airlines. The aviation fuel refueling place is called the Aircraft Refueling Depot. One of the aircraft filling depots in Palu is the Mutiara Aircraft Filling Depot, located in the Mutiara Sis Al-Jufri Airport Area. The Mutiara Aircraft Refueling Depot uses a Refueling De-Refueling Truck (RDT) to fill aircraft with fuel while on the ground. This refueler unit can also pump and store fuel from aircraft. One of the problems when refueling aviation fuel by RDT at the Mutiara Aircraft Filling Depot was the activation of the emergency stop when the Certified Refueler Operator (CRO) was carrying out the service. The aviation fuel-filling system stopped without anyone realizing it, causing flight delays. The active emergency stop without a clear indicator initiates the FT Prove Pin Point group to create an Emergency Shut-Down Multi-Indicator (ESIn) tool that can monitor the active status of the emergency fuel or engine stop. Before the ESIn tool is used, one of the steps that must be carried out is a feasibility test on electrical safety aspects. Testing is carried out using three criteria, namely visual testing, component electrical parameters, and performance. Based on visual and performance testing, the tool is in good condition and can operate according to the planned purpose. Likewise, when testing component electrical parameters, the measured parameter values show values according to applicable electrical standards.
Optimalisasi Penerangan Jalan Umum (PJU) di Dermaga Pelabuhan Wani 2 dengan Simulasi Dialux Evo Nawawi, Alfi; Kali, Agustinus; Mahmudi, Irwan; Sholihah, Ratih Mar'atus
SMARTICS Journal Vol 11 No 1 (2025): SMARTICS Journal (April 2025)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/smartics.v11i1.11856

Abstract

The Wani 2 Port Pier, located in Tanantovea District, Donggala Regency, is a vital infrastructure equipped with a Gantry Crane that requires optimal street lighting to support loading and unloading activities as well as maritime and land transportation. This study aims to analyze the lighting intensity and its compliance with the standards set by SNI 7391:2008, the Ministry of Public Works and Public Housing, the Ministry of Maritime Transportation, and the Ministry of Health Regulation No. 70 of 2016, which recommends a minimum illumination level of 20 lux. An evaluation of the existing street lighting system indicates that the average lighting intensity remains below the established standard, ranging from 8 to 16 lux. This discrepancy is attributed to the varying distances between light poles, which range from 15–20.5 meters and the use of 100-watt LED lamps with an output of 12,500 lumens and a color temperature of 4000 Kelvin, which are not optimal. To address this issue, this study optimizes the street lighting system through simulations conducted using DIALux Evo software. The proposed improvements include modifying the lamp specifications and increasing the number of lamps. This upgrade results in a total luminous output of 30,000 lumens. Additionally, adding one streetlight with a 14-meters spacing between poles enhances overall illumination. The simulation results indicate that modifying the lamp specifications and adding streetlight points significantly improve light distribution. The achieved illumination levels comply with SNI 7391:2008 and the Ministry of Health Regulation No. 70 of 2016.
IMPLEMENTASI SISTEM POINT OF SALE PADA APLIKASI SNEAK-APP UNTUK UMKM SNEAK CRAFTERS Mar'atus Sholihah, Ratih; Zaky, Muhammad
JESICA (Jurnal Teknologi Informasi , Sistem Informasi, dan Data Science) Vol 3 No 1 (2025): Maret 2025
Publisher : LPPM AMIK Taruna Probolinggo

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

Abstract

UMKM Sneak Crafters menghadapi kendala dalam pengelolaan transaksi dan manajemen stok karena masih menggunakan sistem manual, yang menyebabkan ketidakefisienan serta meningkatkan risiko kesalahan pencatatan. Untuk mengatasi permasalahan tersebut, penelitian ini mengembangkan aplikasi Point of Sale (POS) Sneak-App menggunakan metode Software Development Life Cycle (SDLC) model Waterfall. Aplikasi ini dirancang untuk membantu pencatatan transaksi secara otomatis serta mengelola stok barang dengan lebih efisien. Pengujian dilakukan menggunakan metode black box testing untuk mengevaluasi fungsionalitas sistem, dan hasilnya menunjukkan bahwa fitur utama, seperti registrasi pengguna, pengelolaan produk, transaksi, serta pemrosesan pesanan, telah berjalan sesuai spesifikasi yang dirancang. Penelitian ini merupakan bagian dari Project-Based Learning mahasiswa Teknik Informatika Politeknik Negeri Jember yang bekerja sama dengan UMKM Sneak Crafters. Dengan adanya aplikasi ini, diharapkan Sneak Crafters dapat meningkatkan efisiensi operasional dan mengurangi risiko kesalahan dalam proses bisnisnya.
SISTEM PINTAR KONTROL AIR CONDITIONER (AC) BERBASIS FUZZY LOGIC DAN PENGARUHNYA PADA KONSUMSI ENERGI LISTRIK Palallo, Tomas; Amin, Nurhani; Arifin, Yusnaini; Sholihah, Ratih mar'atus; Mahmudi, Irwan
Foristek Vol. 15 No. 2 (2025): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v15i2.840

Abstract

The manual use of Air Conditioners (AC) often leads to excessive electricity consumption, as temperature settings are not adjusted to actual environmental conditions. This study aims to design and implement an AC control system based on Mamdani fuzzy logic to automatically regulate room temperature according to thermal comfort standards, as well as to analyze its effect on electricity consumption. The system was developed using four DHT11 sensors connected to an ESP32 microcontroller as the main controller, while energy consumption was monitored using a PZEM-004T sensor and transmitted to the ThingSpeak platform. Experimental results show that the fuzzy logic-based control system was able to adaptively adjust the AC temperature with high accuracy. The application of the system resulted in an energy consumption of 5.01 kWh over three days, compared to 8.87 kWh under manual control. Thus, the system achieved energy savings of 3.86 kWh or 43.82%. These findings demonstrate that applying fuzzy logic to AC control is effective in improving energy efficiency and supporting electricity cost reduction.
Co-Authors Agustinus Kali Ahmad Antares Adam Annisa Latifah Nur'aeni Ari Widodo Fahrul Fahrul Irwan Mahmudi Irwan Mahmudi Irwan Mahmudi Kurniawan, Adhika Lutfiyana Andi Anshar Mahmudi, Irwan Nawawi, Alfi Nurahani Amin Nurhani Amin Oktadli Pratama Simbaju Palallo, Tomas R. Riandi, R. Samad, Mohammad Syafar Sundun Sada Maripi Yuli Asmi Rahman Yusnaini Arifin Zaky, Muhammad