Show simple item record

dc.contributor.authorYang, Xen
dc.contributor.authorYuan, Yen
dc.contributor.authorLong, Zen
dc.contributor.authorMendes Silva Goncalves, Jorgeen
dc.contributor.authorPalmer, Patricken
dc.date.accessioned2018-02-28T18:00:08Z
dc.date.available2018-02-28T18:00:08Z
dc.date.issued2016-03-01en
dc.identifier.issn0885-8993
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/273632
dc.description.abstractThe main idea of active voltage control (AVC) is to employ classic feedback-control methods forcing the IGBT collector voltage transient to follow a predefined trajectory. This feedback control of IGBTs has great advantages in guaranteeing that IGBTs remain in safe operating area (SOA), restricting EMI, mitigating the voltage/current stress, minimizing/predicting their power losses, and balancing voltages of IGBTs in series. Inevitably, however, AVC introduces stability issues. Based on the assumption that accurate IGBT small-signal model parameters are available, an analogue proportional-derivative and multiloop feedback control was proposed to achieve stable performance in previous work. Due to nonlinearities and uncertainties in IGBT parameters, previous stability analysis methods have important limitations. This work uses Kharitonov's theorem during the IGBT controlled turn-off to assess the system's stability and guide the AVC design to account for model uncertainties and varying parameters. We conducted experiments to investigate the system's robust stability due to these uncertainties in the IGBT parameters, which confirm the validity of the proposed theoretical analysis. With the use of wide bandwidth op-amps, it is shown that the feedback design may be simplified.
dc.publisherIEEE
dc.subjectinsulated gate bipolar transistorsen
dc.subjectautomatic voltage controlen
dc.subjectswitchesen
dc.subjectstability criteriaen
dc.titleRobust stability analysis of active voltage control for high-power IGBT switching by Kharitonov's theoremen
dc.typeArticle
prism.endingPage2595
prism.issueIdentifier3en
prism.publicationDate2016en
prism.publicationNameIEEE Transactions on Power Electronicsen
prism.startingPage2584
prism.volume31en
dc.identifier.doi10.17863/CAM.20697
dcterms.dateAccepted2015-04-30en
rioxxterms.versionofrecord10.1109/TPEL.2015.2439712en
rioxxterms.versionAM*
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2016-03-01en
dc.contributor.orcidMendes Silva Goncalves, Jorge [0000-0002-5228-6165]
dc.identifier.eissn1941-0107
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/I03210X/1)
pubs.funder-project-idEPSRC (EP/L021579/1)
cam.issuedOnline2015-06-01en


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record