Jayananda, DiliniKularatna, NihalSteyn-Ross, D. Alistair2024-08-262024-08-262020Jayananda, D., Kularatna, N., & Steyn-Ross, D. A. (2020). Supercapacitor-assisted LED (SCALED) technique for renewable energy systems: a very low frequency design approach with short-term DC-UPS capability eliminating battery banks. IET Renewable Power Generation, 14(9), 1559-1570. https://doi.org/10.1049/iet-rpg.2019.13071752-1416https://hdl.handle.net/10289/16841The fluctuating nature of solar energy necessitates suitable energy storage systems. Compared to typical battery banks, supercapacitors offer longer cycle life eliminating the need to replace them regularly. However, compared to a typical maximum power point tracking controller, where the battery bank and resistive load fed by a switch-mode DC–DC converter allows impedance matching for maximum power transfer, a supercapacitor bank's significantly large capacitive load does not permit the typical impedance matching for maximum power transfer. This study compares the theoretical difference between battery versus supercapacitor energy storage, and highlights of the supercapacitor-assisted LED converter technique in achieving high-efficiency renewable energy-based DC-microgrid systems.enAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/Science & TechnologyTechnologyGreen & Sustainable Science & TechnologyEnergy & FuelsEngineering, Electrical & ElectronicScience & Technology - Other TopicsEngineeringmaximum power point trackersenergy storageimpedance matchingDC-DC power convertorsuninterruptible power suppliesdistributed power generationphotovoltaic power systemspower generation controlrenewable energy sourcessupercapacitorspower gridstypical battery bankslonger cycle lifetypical maximum power pointbattery bankresistive loadswitch-mode DC-DC convertermaximum power transfersupercapacitor bankcapacitive loadtypical impedancebattery versus supercapacitor energy storagesupercapacitor-assisted LED converter techniquehigh-efficiency renewable energy-based DC-microgrid systemsrenewable energy systemslow frequency design approachshort-term DC-UPS capabilityfluctuating naturesolar energy necessitates suitable energy storage systemsMPPT TECHNIQUESCONVERTERSEFFICIENCYJournal Article10.1049/iet-rpg.2019.13071752-142440 Engineering4008 Electrical Engineering4009 Electronics, Sensors and Digital Hardware4008 Electrical engineering4009 Electronics, sensors and digital hardware4011 Environmental engineering7 Affordable and Clean Energy13 Climate Action