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All Journal JTEV (Jurnal Teknik Elektro dan Vokasional IPTEK The Journal for Technology and Science JET (Journal of Electrical Technology) ELECTRON E-JOINT (Electronica and Electrical Journal Of Innovation Technology) Engineering Science Letter INJECTION: Indonesian Journal of Vocational Mechanical Engineering
Ali Muhtar
Institut Teknologi Sumatera
Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Modelling Optimisation of Distributed PV-Battery Charge and Discharge Modes Using Systems for Improved Sustainable Energy Management Syamsyarief Baqaruzi; Amrina Mustaqim; Ali Muhtar; Muhammad Rizky Hikmatullah; Rahmat Fadhilah; Andika Munandar; Edo Kharisma Army; Setiadi Wira Buana; Rizqi Wahyudi; Muhammad Rifqi Dwi S
Engineering Science Letter Vol. 5 No. 01 (2026): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/IISTR.esl.001508

Abstract

This study examines the simulation of charge and discharge modes of lithium-ion batteries in a distributed photovoltaic system using MATLAB/ Simulink modeling. The objective is to analyze the integration of solar panels with battery-based energy storage systems to optimize performance and efficiency. The methodology involves mathematical modeling of photovoltaic cells based on p-n junctions, with key parameters such as temperature (15–30°C) and irradiance (1000 W/m²), along with the design of a Solar Charge Controller (SCC) to regulate energy flow. Simulations were conducted on four 150 W photovoltaic panels under varying environmental conditions, integrated with parallel-connected 12 V 250 Ah batteries. Results show a system efficiency of 87% at 25°C and 1000 W/m² irradiance, with panel output voltages aligning with mathematical equations (0.15 A error). Discharge mode analysis, accounting for system losses (inverter 5%, SCC 3%, wiring 2%), confirms the battery can supply a 5 Ω load for approximately 2.00 hours at 45% State of Charge (SOC), representing a 9.5% reduction from the ideal calculation. Simulations also compare SCC performance using DC and photovoltaic sources, demonstrating consistency in energy flow regulation. Validation results indicate the Simulink model’s accuracy in representing real-world characteristics, though MATLAB code simulations exhibit higher precision. The study highlights the importance of SCC control and SOC management to enhance battery lifespan and stability in renewable hybrid energy systems. Implications include potential applications.
Co-Authors Amir Shodiq Amrina Mustaqim Andika Munandar Andree Fajar Pratama Bima Arifanto Buana, Setiadi Wira Cuk Supriyadi Ali Nandar Edo Kharisma Army Firman Oswaldo Sitompul Gde KM Atmajaya Muhammad Rifqi Dwi S Muhammad Rizky Hikmatullah Norzanah Rosmin Prasetyawan, Purwono Putty Yunesti Rahmat Fadhilah Rizqi Wahyudi Sabhan Kanata Satria Pratama Ramadhannusa Shovyana Wulan Tika Sukma Sanjaya Syamsyarief Baqaruzi Yunita Septiyanda