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A Self‐Tuning LCC/SP System for Electric Vehicle Wireless Charging against Large Self‐ and Mutual Inductance Variations

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cam.issuedOnline2022-05-27
dc.contributor.authorZhao, Y
dc.contributor.authorWei, X
dc.contributor.authorLuo, Z
dc.contributor.authorXiong, M
dc.contributor.authorDai, H
dc.contributor.orcidZhao, Yiyan [0000-0002-4015-5096]
dc.date.accessioned2022-05-30T15:02:42Z
dc.date.available2022-05-30T15:02:42Z
dc.date.issued2022
dc.date.updated2022-05-30T15:02:41Z
dc.description.abstract<jats:p>An LCC/SP self-tuning wireless charging system is proposed herein for use in a wireless charging test bench. With different dislocations in addition to changes in the coil self-inductance and mutual inductance caused by different secondary magnetic shielding materials, the system can ensure that the high power factor of the primary side remains unchanged without changing the circuit topology. Based on this normalized detuning LCC/SP circuit model, a switch-controlled capacitor (SCC) self-tuning method based on PI control is proposed. The control scheme employs only two MOSFETs and capacitors, without WIFI communication or parameter identification. A 2 kW experimental device was set up in the laboratory, and experimental verification was carried out with large-scale dislocations and different secondary magnetic shielding materials. The experimental results confirm that the system can maintain a high power factor (&gt;0.9) under a system mutual inductance variation of 47.7% and secondary coil self-inductance variation of 12%, and that it can be applied in electric vehicle wireless chargers or high-power wireless charger test benches.</jats:p>
dc.identifier.doi10.17863/CAM.85015
dc.identifier.eissn1996-1073
dc.identifier.issn1996-1073
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/337606
dc.languageen
dc.language.isoeng
dc.publisherMDPI AG
dc.publisher.urlhttp://dx.doi.org/10.3390/en15113980
dc.subjectwireless energy transmission
dc.subjectswitched capacitor
dc.subjectLCC
dc.subjectSP compensation
dc.subjectelectric vehicle
dc.titleA Self‐Tuning LCC/SP System for Electric Vehicle Wireless Charging against Large Self‐ and Mutual Inductance Variations
dc.typeArticle
dcterms.dateAccepted2022-05-23
prism.issueIdentifier11
prism.publicationNameEnergies
prism.volume15
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by/4.0/
rioxxterms.versionVoR
rioxxterms.versionofrecord10.3390/en15113980

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