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dc.contributor.authorAmrhein, Andrew Aloysiusen_US
dc.date.accessioned2017-04-13T06:00:17Z
dc.date.available2017-04-13T06:00:17Z
dc.date.issued2015-10-20en_US
dc.identifier.othervt_gsexam:6005en_US
dc.identifier.urihttp://hdl.handle.net/10919/77400
dc.description.abstractInduction heating has become a popular alternative to other heat sources for stovetop cooking applications due to performance, efficiency, control response, and safety. The main drawback is that extreme difficulty is encountered when trying to head low-resistivity, non-ferromagnetic metals such as aluminum and copper, which are commonly used for cookware in several societies. The lack of ferromagnetic properties, resulting in no hysteresis dissipation, and low resistivity of such metals results in an impractically low resistance reflected through the work coil. The resultant impedance complicates inverter design, as it is too low to be efficiently driven with conventional inverter topologies. The magnitudes of current involved in exciting this impedance also severely impact the efficiency of the coil and resonant components, requiring extreme care in coil design. This work explores various techniques that have been proposed and/or applied to efficiently heat low-resistivity cookware and the associated limitations. A transformer-coupled series-load-resonant topology driven by a full-bridge inverter is proposed as a means of efficiently heating aluminum cookware within practical design constraints. The experimental circuit is built and successfully tested at an output power of 1.66kW. The procedure of optimizing the work coil for improved efficiency is also presented along with the procedure of measuring coil efficiency. An improved circuit incorporating switch voltage detection to guarantee zero-voltage switching is then built in order to overcome limitations of this design.en_US
dc.format.mediumETDen_US
dc.publisherVirginia Techen_US
dc.rightsThis Item is protected by copyright and/or related rights. Some uses of this Item may be deemed fair and permitted by law even without permission from the rights holder(s), or the rights holder(s) may have licensed the work for use under certain conditions. For other uses you need to obtain permission from the rights holder(s).en_US
dc.subjectall-metal induction cookeren_US
dc.subjecthigh-frequency skin effecten_US
dc.subjectlow-resistivity induction heatingen_US
dc.subjectseries-load-resonanten_US
dc.subjectsoft-switching inverteren_US
dc.subjecttransformer impedance matchingen_US
dc.titleInduction Heating of Aluminum Cookwareen_US
dc.typeThesisen_US
dc.contributor.departmentElectrical Engineeringen_US
dc.description.degreeMSen_US
thesis.degree.nameMSen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineElectrical and ComputerEngineeen_US
dc.contributor.committeechairLai, Jih Sen_US
dc.contributor.committeememberSable, Daniel Men_US
dc.contributor.committeememberDe La Reelopez, Jaimeen_US


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