Power-cell switching-cycle capacitor voltage control for modular multi-level converters

Simple item page
dc.contributor.assigneeVirginia Tech Intellectual Properties, Inc.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.contributor.departmentCenter for Power Electronics Systemsen
dc.contributor.inventorWang, Junen
dc.contributor.inventorBoroyevich, Dushanen
dc.contributor.inventorBurgos, Rolandoen
dc.contributor.inventorWen, Boen
dc.date.accessed2019-02-15en
dc.date.accessioned2019-02-26T22:24:02Zen
dc.date.available2019-02-26T22:24:02Zen
dc.date.filed2014-12-22en
dc.date.issued2018-05-08en
dc.description.abstractIn a modular multi-level power converter, additional switching states are interleaved between main switching states that control output voltage or waveform. The additional switching states provide current from a DC-link to charge capacitors in respective modules or cells to an offset voltage from which the capacitor voltages are controlled toward a reference voltage during each switching cycle rather than being allowed to build up over a period of an output waveform of variable line frequency, possibly including zero frequency. Since the switching cycle is much shorter than the duration of a line frequency cycle and the capacitor voltages are balanced during each switching cycle, output voltage ripple can be limited as desired with a capacitor of much smaller value and size than would otherwise be required.en
dc.format.mimetypeapplication/pdfen
dc.identifier.applicationnumber14578651en
dc.identifier.patentnumber9966874en
dc.identifier.urihttp://hdl.handle.net/10919/87840en
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/74/668/099/0.pdfen
dc.language.isoenen
dc.publisherUnited States Patent and Trademark Officeen
dc.subject.cpcH02M7/483en
dc.subject.cpcH02M2001/0003en
dc.subject.cpcH02M2007/4835en
dc.titlePower-cell switching-cycle capacitor voltage control for modular multi-level convertersen
dc.typePatenten
dc.type.dcmitypeTexten
dc.type.patenttypeutilityen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
9966874.pdf
Size:
1.57 MB
Format:
Adobe Portable Document Format
Download

Collections

Virginia Tech Patents
Scholarly Works, Center for Power Electronics Systems
Scholarly Works, Electrical and Computer Engineering