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Arga Sakti Oktavianus Sihombing
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Evaluasi Respon Dinamis Konverter Cascaded Buck-Boost Tiga Unit Menggunakan Pendekatan Simulasi di MATLAB/Simulink Rio Rivaldo Sinurat; Christoper Alfredo Laoli; Arga Sakti Oktavianus Sihombing; Desman Jonto Sinaga; Arwadi Sinuraya
JOURNAL SAINS STUDENT RESEARCH Vol. 3 No. 6 (2025): Jurnal Sains Student Research (JSSR) Desember
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jssr.v3i6.6995

Abstract

Konverter DC-DC tipe buck-boost banyak digunakan pada sistem daya karena kemampuannya untuk menaikkan maupun menurunkan tegangan sesuai kebutuhan beban. Namun, pada aplikasi yang membutuhkan rentang pengaturan tegangan yang lebih luas serta stabilitas yang tinggi, konfigurasi satu tahap seringkali tidak mencukupi. Oleh karena itu, penelitian ini mengevaluasi respon dinamis konverter cascaded buck-boost tiga unit menggunakan pendekatan simulasi pada MATLAB/Simulink. Setiap unit konverter dihubungkan secara seri untuk meningkatkan fleksibilitas pengaturan tegangan keluaran. Analisis dilakukan dengan mengamati perubahan tegangan keluaran terhadap variasi duty cycle dan pembebanan untuk menilai karakteristik transien dan kestabilan sistem. Hasil simulasi menunjukkan bahwa konfigurasi cascaded mampu menghasilkan tegangan keluaran yang stabil dengan respon transien yang terkendali, meskipun sensitivitas terhadap variasi duty cycle meningkat seiring bertambahnya jumlah tahap. Dengan demikian, topologi cascaded buck-boost tiga unit dapat diterapkan pada sistem tenaga DC yang membutuhkan pengaturan tegangan adaptif dan luas. Kata kunci: Konverter DC-DC, Buck-Boost, Cascaded Converter, Respon Dinamis, Simulasi MATLAB.
Design and Implementation of an IoT-Based Smart Greenhouse Monitoring System Prototype Using ESP32 Microcontroller Laoli, Christoper Alfredo; Ongku Puadi Harahap; Arga Sakti Oktavianus Sihombing; Eka Dodi Suryanto; Dian Putra Saragi
JOURNAL SAINS STUDENT RESEARCH Vol. 4 No. 2 (2026): April
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jssr.v4i2.9577

Abstract

The development of Internet of Things (IoT) technology provides solutions to improve the efficiency of monitoring and managing plant environments, particularly in greenhouse systems. A common problem is the lack of optimal monitoring of environmental conditions such as temperature, air humidity, soil moisture, and light intensity, which significantly affect plant growth. This study aims to design and implement a prototype smart greenhouse monitoring system based on IoT using the ESP32 microcontroller to monitor environmental conditions in real-time and support automatic irrigation. The research method used is an experimental approach involving system design, assembly, and testing in an indoor environment using potted plants. The system utilizes a DHT11 sensor for temperature and humidity, a soil moisture sensor for soil conditions, an LDR sensor for light intensity, and an ultrasonic sensor for measuring water level. The collected data were analyzed descriptively to evaluate system performance. The results show that all sensors function properly and are able to detect environmental changes accurately, and the system successfully transmits data in real-time to a monitoring platform. The implication of this research is that the developed system can serve as an effective solution for automated plant monitoring and irrigation in small to medium-scale applications.
Co-Authors Arwadi Sinuraya Christoper Alfredo Laoli Dian Putra Saragi Eka Dodi Suryanto Laoli, Christoper Alfredo Ongku Puadi Harahap Rio Rivaldo Sinurat SINAGA, DESMAN JONTO