Magnetic Design Aspects of Coupled-Inductor Topologies for Transient Suppression
dc.contributor.author | Silva Thotabaddadurage S | |
dc.contributor.author | Kularatna N | |
dc.contributor.author | Steyn-Ross DA | |
dc.date.accessioned | 2023-01-22T21:23:36Z | |
dc.date.available | 2023-01-22T21:23:36Z | |
dc.date.issued | 2023 | en |
dc.date.updated | 2023-01-13T05:23:09Z | |
dc.description.abstract | <jats:p>Based on the discovery of the surge absorption capability of supercapacitors, a transient protector named supercapacitor-assisted surge absorber (SCASA) was designed and implemented in a commercial device. Despite its simplicity, the circuit topology consisted of a coupled inductor wound around a specially selected magnetic core. This paper elucidates the design aspects of SCASA coupled-inductor topologies with a special focus on the magnetic action of core windings during transient propagation. The non-ideal operation of the SCASA transformer was studied based on a semi-empirical approach with predictions made by using magnetizing and leakage permeances. The toroidal flux distribution through the transformer was also determined for a 6 kV/3 kA combinational surge, and these findings were validated by using a lightning surge simulator. In predicting the possible effects of magnetic saturation, the hysteresis properties of different powdered-iron and ferrite core types were considered to select the optimal design for surge absorption. The test results presented in this research revealed that X-Flux powdered-iron toroid and air-gapped EER ferrite yielded exceptional performance with ∼10% and ∼20% lower load–voltage clamping compared to that of the existing Kool μu design. These prototypes further demonstrated a remarkable surge endurance, withstanding over 250 consecutive transients. This paper also covers details of three-winding design optimizations of SCASA and LTSpice simulations under the IEC 61000/IEEE C62.45 standard transient conditions.</jats:p> | en |
dc.identifier.citation | Silva Thotabaddadurage S, Kularatna N, Steyn-Ross DA Magnetic Design Aspects of Coupled-Inductor Topologies for Transient Suppression. Electronics. 12(1). 246-246. | en |
dc.identifier.doi | http://doi.org/10.3390/electronics12010246 | |
dc.identifier.issn | 2079-9292 | |
dc.identifier.uri | https://hdl.handle.net/10092/105042 | |
dc.language | en | |
dc.language.iso | en | en |
dc.publisher | MDPI AG | en |
dc.rights | All rights reserved unless otherwise stated | en |
dc.rights.uri | http://hdl.handle.net/10092/17651 | en |
dc.subject | supercapacitors | en |
dc.subject | transient absorption | en |
dc.subject | magnetic permeance | en |
dc.subject | coupled inductor | en |
dc.subject | transformer modeling | en |
dc.subject | LTSpice simulations | en |
dc.subject | ferrites | en |
dc.subject | powdered iron | en |
dc.subject.anzsrc | Fields of Research::40 - Engineering::4008 - Electrical engineering::400807 - Engineering electromagnetics | en |
dc.subject.anzsrc | Fields of Research::40 - Engineering::4008 - Electrical engineering::400802 - Electrical circuits and systems | en |
dc.title | Magnetic Design Aspects of Coupled-Inductor Topologies for Transient Suppression | en |
dc.type | Journal Article | en |
uc.college | Faculty of Engineering | |
uc.department | Electric Power Engineering Centre |
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