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Journal : INFOKUM

Performance Analysis of a Pure Sine Wave Inverter Using the EGS002 Module Jhon Wandes P. Hutagaol; Ahmad Dani; Beni Satria
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Abstract

The development of renewable energy technology increases the need for efficient and reliable inverters to convert direct current into alternating current. This study aims to analyze the performance of a pure sine wave inverter using the EGS002 module as a pulse width modulation controller to produce a pure sine wave. The main issues studied are power conversion efficiency, output voltage stability, and total harmonic distortion (THD) under various load conditions, including resistive and non-linear loads. The research method involves experimental simulations using MATLAB/Simulink and Proteus software, by designing an inverter system based on the EGS002 module, IRF3205 MOSFET transistor, and LC filter. Performance parameters measured include power conversion efficiency (η), total harmonic distortion, and RMS output voltage (V_RMS). The simulation results show that the inverter achieves an average power conversion efficiency of 91.4%, total harmonic distortion below 5% under all load conditions, and output voltage stability with a deviation of less than 1% from the nominal value of 220 volts. These findings indicate that the EGS002 module is effective for inverter applications in renewable energy systems, although optimization is required for non-linear loads and production cost reduction. This research provides important insights for the development of more efficient and reliable inverters.
IoT-Based Smart Home Automation Design Analysis Marthin Hotniel Marisi Arigatho Simbolon; Beni Satria; Ahmad Dani
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Abstract

The increasing need for comfort, energy efficiency, and home security has driven the development of an Internet of Things (IoT)-based smart home automation system. This study designs a smart home system using ESP32 as the main controller, integrated with a PIR sensor for intruder detection, a light sensor for automatic lighting control, a gas sensor for leak detection, and the Blynk application for remote monitoring. The main problem is the lack of affordable systems that integrate security and energy efficiency in real-time. The objective of this study is to develop a system that is cost-effective, responsive, and easy to use. Methods include hardware configuration, ESP32 programming, and testing in a residential simulation. The results show a PIR sensor detection accuracy of 95%, energy savings of up to 30% through automatic lighting control, and a Blynk notification reliability of 98%. This system offers an affordable solution to improve home security and energy efficiency.
IoT Heart Beat Monitoring Based on Nodemcu ESP32 Ricki Septiando Sinaga; Beni Satria; Hamdani, Hamdani
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Abstract

Cardiovascular disease is a leading cause of global death, with early detection of heart rate anomalies key to preventing complications such as arrhythmias. However, conventional monitoring systems are often expensive, non-portable, and less accessible in remote areas. This study aims to develop an affordable and portable Internet of Things (IoT)-based heart rate monitoring system using the MAX30100 sensor and an ESP32 microcontroller. The system is designed to measure heart rate in real time, transmit data to the Blynk IoT platform, and provide automatic notifications when the heart rate is outside the normal range (60–100 beats per minute). The research methods include system design, hardware and software implementation, and testing on 10 subjects aged 20–40 years. Heart rate data was processed using a moving average filter to reduce motion noise. The test results showed heart rate measurement accuracy with an average relative error of 2.57%, an average data transmission latency of 1.39 seconds, and a notification response time of 1.8 seconds. The system is also power-efficient with a consumption of 80 milliamperes, making it suitable for long-term use. This research has successfully produced an efficient and accessible heart rate monitoring solution, supporting early detection of heart disorders in resource-limited settings.
Analysis of the Effect of Frequency Variation on the Speed of a Single-Phase Induction Motor Jon Timo Bariman M; Solly Aryza; Beni Satria
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Abstract

Single-phase induction motors are widely used in domestic and light industrial applications, but their performance is often affected by variations in power supply frequency, which affect rotor speed, torque, and energy efficiency. This study aims to analyze in depth the effect of frequency on the performance of a single-phase induction motor through an experimental approach, focusing on the relationship between frequency, rotor speed, torque, and energy efficiency. Tests were conducted on a 1 horsepower motor using a variable frequency drive at a frequency range of 30 to 70 hertz. Rotor speed (in revolutions per minute), torque (in newton-meters), and energy efficiency (in percent) were measured under no-load and mechanically loaded conditions. The results show that the rotor speed increases linearly from 820 revolutions per minute at 30 hertz to 1850 revolutions per minute at 70 hertz under loaded conditions. Torque peaks at 2.30 newton-meters at 50 hertz, while energy efficiency increases from 21.18% at 30 hertz to 40.00% at 70 hertz. This research provides a model of the relationship between frequency and motor performance that can be used to optimize motor operation in practical applications, especially to improve energy efficiency in the domestic and light industrial sectors.
Analysis of Monitoring and Optimization of Electrical Energy Consumption at the Faculty of Dentistry, University of North Sumatra (USU) Using a Smart Metering System Rakha Zahri Andresna; Solly Aryza; Beni Satria
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Abstract

The increasing consumption of electrical energy in academic environments, including the Faculty of Dentistry, University of North Sumatra (FKG USU), demands a more efficient energy monitoring and optimization system. This study aims to analyze the pattern of electrical energy consumption at FKG USU and optimize its use using a Smart Metering System. The methods used in this study include collecting energy consumption data through smart meters, analyzing consumption patterns using statistical and data mining approaches, and simulating optimization scenarios based on energy efficiency strategies. The results show that the use of a Smart Metering System can improve energy efficiency by reducing electricity consumption by up to (percentage if any) through more optimal electricity load management and user awareness of energy use. With this system, FKG USU can implement more effective energy saving strategies, reduce electricity operational costs, and contribute to environmental sustainability.
Analysis of Radiation Efficiency of Microstrip Dipole Antenna Based on Cohen-Minkowski Fractal Putra, Bhima Andika; Muhammad Erpandi Dalimunthe; Beni Satria
INFOKUM Vol. 13 No. 06 (2025): Infokum
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58471/infokum.v13i06.2971

Abstract

The performance of microstrip antennas can be significantly improved through fractal geometry, particularly in achieving size reduction and multiband behavior. This study investigates the radiation efficiency of a microstrip dipole antenna employing the Cohen-Minkowski fractal geometry. The antenna is designed using FR4 substrate material with a dielectric constant of 4.4 and is simulated in multiple fractal iterations. Simulations are conducted using CST Studio Suite to observe return loss (S11), gain, and radiation efficiency across different frequencies. The results show that the incorporation of Cohen-Minkowski geometry increases surface current path length, enabling better impedance matching and improved radiation efficiency, especially at higher iterations.
Performance Analysis of Battery Endurance in a Bldc Motor-Based Mini Electric Vehicle: a Case Study at the Electrical Engineering Laboratory, Universitas Pembangunan Panca Budi Denny Syahputra; Parlin Siagian; Beni Satria
INFOKUM Vol. 13 No. 06 (2025): Infokum
Publisher : Sean Institute

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Abstract

The development of electric vehicle technology continues to experience rapid progress, especially in terms of energy efficiency and power storage systems. One of the main components in an electric vehicle is the battery, which plays a crucial role in determining the vehicle's range, performance, and energy efficiency. This study aims to analyze the battery life of a BLDC (Brushless DC) motor used in a mini electric car prototype. Testing was conducted at the Electrical Engineering Laboratory of Panca Budi Development University with various load scenarios and operating times to evaluate battery life performance. The research method was carried out through an experimental approach by directly measuring voltage, current, temperature, and operating duration using a digital measuring instrument and periodically recording the data. The test results showed that the battery has optimal performance within a certain current range, but experienced a decrease in capacity as the load and operating temperature increased. From the test results, it was concluded that battery life is greatly influenced by operational conditions and charging system management. This study provides an initial overview for the development of a battery management system (BMS) and energy efficiency design in a laboratory-scale mini electric vehicle. Development recommendations are directed at temperature control and load power regulation so that the battery can be used more optimally and sustainably.
Co-Authors Abda Abda Abdi Santoso Abdullah Muhazzir Abdullah Muhazzir Abdullah Muhazzir Adi Sastra P Tarigan Afandi, Reza Ahmad Daffa Ahmad Dani Ahmad Rizal Nurika Alam, Hermansyah Ali Akbar Berutu Ali, Khairul Alim Muflih Alprindo Sembiring Meliala Amani Darma Tarigan Amani Darma Trg Ananda, Supri Apriandi Apriandi Asni Ati Mutia Bahtera Kelana Berthauli S. Berthauli. S Bestari Putra Lase Bintang Dwi Cahya Bintang Tua Sitohang Dalimunthe, Erpandi Dedek Yuhendri Denny Syahputra Dicky Lesmana Dicky Lesmana Eddy Sutejo, Eddy Edward Bahar Ermando Sihombing Erpandi D Erpandi, M Erpita Samosir Fachry Reza Fitriani, Arifah Devi Gultom, Dedi Harianto Gustiar Martua Siregar Habib Syahputra Banurea Hafiz Al Hakim Nasution Haikal Nando Winata Haikal Nando Winata Haikal Nando Winata Hamdani Hamdani . Hamdani Hamdani Harahap, Juliandi Hermansyah Alam Hermansyah Alam Hermansyah Alam Ismunandar, M. Syuhadawan Jhon Wandes P. Hutagaol Jon Timo Bariman M Juneidi Injos II S Kristian Simanjuntak Lubis, Selly Annisa Lungguk Adi Saputra M. Erpandi Dalimunte M. Iqbal M. Irwansyah M. Syuhadawan Ismunandar Marthin Hotniel Marisi Arigatho Simbolon Maulana, M. Rizky Mery Sri Wahyuni Mery Sri Wahyuni Mery Sri Wahyuni Mhd Erpandi Dalimunthe Muhammad Erpandi Dalimunthe Muhammad Rizki Syahputera Mulia Supiadi Silalahi Nawawi, Ikram Novita Delima Siahaan Nugraha Krianto Siregar Nuraprilyani Pasaribu Parlin Siagian Pristisal Wibowo Putra, Bhima Andika Rahmaniar Rahmaniar Rahmaniar Rahmaniar, Rahmaniar Rakha Zahri Andresna Ramadhan, Aulia Redyanto Sidi Ricki Septiando Sinaga Risdawati, Irsyam Rizky Andromedha Persia Roni Afrizal Rudi Saputra S, Bertauli. Sabam Sitorus Samosir, Daniel Junaedi Samuel Sampe Tuah Purba Santiasih, Wayan Ary Selamat Riady Hutasuhut Shilvira, Ayu Sianturi, Barata Mandala Siddik, Muhammad Sidi, Redyanto Simanjorang, Asyiah Siregar, Khusnu Abdillah Siti Suriyatni Sitohang, Theresia Bornito Solly Aryza Stepanus.S, Ronaldo Sudomo Colombus Situmorang tarigan, Amani d Tarigan, Amani Darma W, Pristisal Yopi Andinata yulia, Luh Anggreni Zulkarnaen Lubis Zulkarnain Lubis