Supercapacitor-Assisted Techniques and Supercapacitor-Assisted Loss Management Concept: New Design Approaches to Change the Roadmap of Power Conversion Systems
| Autor: | Thilanga Ariyarathna, Kasun Subasinghage, Dilini Jayananda, Nihal Kularatna, Kosala Gunawardane |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
TK7800-8360
Computer Networks and Communications Computer science transient surge absorbers 02 engineering and technology Voltage regulator Capacitance Energy storage law.invention law Hardware_GENERAL low-dropout regulators power conversion 0202 electrical engineering electronic engineering information engineering Electronics Electrical and Electronic Engineering Supercapacitor supercapacitors RC circuits business.industry 020208 electrical & electronic engineering Electrical engineering 021001 nanoscience & nanotechnology Capacitor Hardware and Architecture Control and Systems Engineering Signal Processing Voltage regulation 0210 nano-technology business Energy source |
| Zdroj: | Electronics, Vol 10, Iss 1697, p 1697 (2021) |
| ISSN: | 2079-9292 |
| Popis: | All electrical and electronic devices require access to a suitable energy source. In a portable electronic product, such as a cell phone, an energy storage unit drives a complex array of power conversion stages to generate multiple DC voltage rails required. To optimize the overall end-to-end efficiency, these internal power conversions should waste minimal energy and deliver more to the electronic modules. Capacitors are one of the main component families used in electronics, to store and deliver electric charges. Supercapacitors, so called because they provide over a million-fold increase in capacitance relative to a traditional capacitor of the same volume, are enabling a paradigm shift in the design of power electronic converter circuits. Here we show that supercapacitors could function as a lossless voltage-dropping element in the power conversion stages, thereby significantly increasing the power conversion stage efficiency. This approach has numerous secondary benefits: it improves continuity of the supply, suppresses voltage surges, allows the voltage regulation to be electromagnetically silent, and simplifies the design of voltage regulators. The use of supercapacitors allows the development of a novel loss-circumvention theory with applicability to a wide range of supercapacitor-assisted (SCA) techniques. These include low-dropout regulators, transient surge absorbers, LED lighting for DC microgrids, and rapid energy transfer for water heating. |
| Databáze: | OpenAIRE |
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