Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/89450
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dc.contributorDepartment of Building Services Engineeringen_US
dc.creatorLi, Ben_US
dc.creatorDu, YPen_US
dc.creatorZhang, Yen_US
dc.creatorCao, Jen_US
dc.creatorChen, Men_US
dc.date.accessioned2021-03-22T07:20:49Z-
dc.date.available2021-03-22T07:20:49Z-
dc.identifier.issn0885-8977en_US
dc.identifier.urihttp://hdl.handle.net/10397/89450-
dc.language.isoenen_US
dc.rights© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en_US
dc.rightsThe following publication B. Li, Y. Du, Y. Zhang, J. Cao and M. Chen, "A Stable Extended FDTD Thin-Wire Model for Lossy Wire Structures With Irregular Cross Sections," in IEEE Transactions on Power Delivery, vol. 37, no. 1, pp. 349-358, Feb. 2022 is available at https://dx.doi.org/10.1109/TPWRD.2021.3060113.en_US
dc.subjectFinite-difference time-domain (FDTD)en_US
dc.subjectThin wire modelen_US
dc.subjectIrregular cross sectionen_US
dc.subjectFrequency-dependent lossen_US
dc.titleA stable and efficient FDTD thin-wire model for lossy wire structures with irregular cross sectionsen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage349en_US
dc.identifier.epage358en_US
dc.identifier.volume37en_US
dc.identifier.issue1en_US
dc.identifier.doi10.1109/TPWRD.2021.3060113en_US
dcterms.abstractA stable extended FDTD thin-wire model for lossy wire structures with irregular cross sections is presented for lightning transient analysis. In this model, the electro-magnetic field in the vicinity of a conductor with an irregular cross section is taken into account by adopting a single constant correction factor, and the conductor loss is represented with an internal impedance. These two parameters are calculated with a charge simulation method and an equivalent circuit method, respectively. The proposed model is validated in terms of the characteristic impedance, conductor loss and time-domain waveform with analytical and numerical methods. Good agreements are observed. Considering the rigid conductor-size/cell-size requirement and 8 tedious convolutional processes in the existing non-circular thin-wire model, the implementation complexity of this proposed model is significantly simplified, and the computational stability is remarkably enhanced. Without reducing the time step, the simulation can maintain its stability when the conductor size varies from 0.01 to 1 of the FDTD cell size. It is also revealed that using a single intrinsic model for conductors with different cross sections could lead to significant calculation errors. Finally, this proposed model is applied for the lightning transient analysis in an electrified railway system.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationIEEE transactions on power delivery, Feb. 2022, v. 37, no. 1, p. 349-358en_US
dcterms.isPartOfIEEE transactions on power deliveryen_US
dcterms.issued2022-02-
dc.identifier.eissn1937-4208en_US
dc.description.validate202103 bcwhen_US
dc.description.oaAccepted Manuscripten_US
dc.identifier.FolderNumbera0620-n01-
dc.identifier.SubFormID614-
dc.description.fundingSourceOthersen_US
dc.description.fundingTextP0034917en_US
dc.description.pubStatusPublisheden_US
dc.description.oaCategoryGreen (AAM)en_US
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