Detection of misalignment and foreign objects in resonant capacitive power transfer

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dc.contributor.advisorRouse, Chris D.
dc.contributor.authorHerpers, Christian
dc.date.accessioned2024-02-21T13:42:37Z
dc.date.available2024-02-21T13:42:37Z
dc.date.issued2023-10
dc.description.abstractWireless power transfer has gained interest in recent years due to the increase in the number of mobile electronic devices and systems needing to be charged. Capacitive power transfer (CPT) offers a low-cost option for medium- and high-power charging. To ensure safe and reliable power transfer, foreign objects and misalignments must be detected. Furthermore, exposure of living tissue to high electromagnetic fields (EMFs) must be avoided. This work presents CPT detection methods for both lateral misalignment and foreign objects (FOs). Symmetries of capacitance matrices are studied to distinguish between types of misalignment and FOs. Results were generated via simulation and verified with measurements on a laboratory 13.56 MHz CPT link. FO detection also functions under lateral misalignment, is parameter-based, and is achieved without external circuitry or sensors. Results indicate the direction of lateral misalignment. EMF exposure was simulated to ensure kW-range power transmission while meeting international safety guidelines.
dc.description.copyright© Christian Herpers, 2023
dc.format.extentxv, 77
dc.format.mediumelectronic
dc.identifier.oclc1441270752en
dc.identifier.otherThesis 11364en
dc.identifier.urihttps://unbscholar.lib.unb.ca/handle/1882/37711
dc.language.isoen
dc.publisherUniversity of New Brunswick
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.subject.disciplineElectrical and Computer Engineering
dc.subject.lcshWireless power transmission.en
dc.subject.lcshElectromagnetic fields.en
dc.titleDetection of misalignment and foreign objects in resonant capacitive power transfer
dc.typemaster thesis
oaire.license.conditionother
thesis.degree.disciplineElectrical and Computer Engineering
thesis.degree.grantorUniversity of New Brunswick
thesis.degree.levelmasters
thesis.degree.nameM.Sc.E.

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