Overmodulation and six-step mode for observer-based V/Hz control

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.advisorTiitinen, Lauri
dc.contributor.authorIaderosa, Angelica
dc.contributor.schoolSähkötekniikan korkeakoulufi
dc.contributor.supervisorHinkkanen, Marko
dc.date.accessioned2023-02-12T21:58:30Z
dc.date.available2023-02-12T21:58:30Z
dc.date.issued2023-02-03
dc.description.abstractThis thesis deals with the control of electrical machines in the overmodulation range. The goal is to have a stable control system able to exploit the full potential voltage of the inverter. After a brief explanation of the system model, the overmodulation algorithm is described. This method allows to have a smooth transition between the linear operation to the extreme operating condition in which the maximum voltage is produced. A synchronized PWM approach is adopted in order to reduce the harmonic spectrum throughout the whole operation. A scalar control based on a flux observer is considered thanks to its stability and its compatibility with the maximum voltage operation. Results show the feasibility of the overall system, six-step mode is able to increase the reachable speed while lowering the currents.en
dc.format.extent44+2
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/119718
dc.identifier.urnURN:NBN:fi:aalto-202302122064
dc.language.isoenen
dc.locationP1fi
dc.programmeAEE - Master’s Programme in Automation and Electrical Engineering (TS2013)fi
dc.programme.majorElectrical Power and Energy Engineeringfi
dc.programme.mcodeELEC3024fi
dc.subject.keywordsix-step modeen
dc.subject.keywordovermodulationen
dc.subject.keywordobserver-based V/Hz controlen
dc.subject.keywordPWMen
dc.titleOvermodulation and six-step mode for observer-based V/Hz controlen
local.aalto.electroniconlyyes
local.aalto.openaccessyes
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