Supercapacitor assisted surge absorber (SCASA) technique: selection of magnetic components based on permeance (2021)
Supercapacitors help building long time constant resistor-capacitor circuits. This property helps them withstand high voltage transient surges and dissipate transient energy in the resistive element of the circuit without exceeding the supercapacitor’s DC voltage rating, which is usually between 2.5 to 4 V. SCASA is a patented technique, which was commercialized within the last five years. Successful implementation of this circuit topology, despite its simplicity, is quite dependent on the selection of the core of the coupled inductor utilized. This paper provides the essential details of the process of selecting the core for the magnetic component required, with a brief comparison of SCASA technique with a traditional surge protector, without any supercapacitors.
CitationUdayanga STS, Kokuhennadige S, Fernando J, Kularatna N, Steyn-Ross DA (2021). Supercapacitor assisted surge absorber (SCASA) technique: selection of magnetic components based on permeance. 2021 IEEE Applied Power Electronics Conference and Exposition (APEC). 14/06/2021-17/06/2021. 2021 IEEE Applied Power Electronics Conference and Exposition (APEC).
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Keywordssurge-protection; supercapacitors; magnetic permeance; coupled-inductor; power quality
ANZSRC Fields of Research40 - Engineering::4008 - Electrical engineering::400805 - Electrical energy transmission, networks and systems
40 - Engineering::4008 - Electrical engineering::400807 - Engineering electromagnetics
40 - Engineering::4008 - Electrical engineering::400802 - Electrical circuits and systems
40 - Engineering::4009 - Electronics, sensors and digital hardware::400911 - Power electronics
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Permeance based model for the coupled-inductor utilized in the supercapacitor assisted surge absorber (SCASA) and its experimental validation Kularatna N; Steyn-Ross DA; Silva Thotabaddadurage, Dr. Sadeeshvara (IEEE, 2020)Transient-surge absorption capability of small/low cost supercapacitors (SCs) is already published. SCASA is a patented technique that led to the development of a high performance commercial surge protector which adheres ...
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