Dual voltage source inverter topology extending machine operating range

T. Gerrits, C.G.E. Wijnands, J.J.H. Paulides, J.L. Duarte

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

15 Citations (Scopus)
1 Downloads (Pure)

Abstract

Field weakening operation of an electrical machine is a conventional method to extend the angular velocity range of a system above the peak output voltage of the inverter. A downside, however, is that an increased reactive current is required that creates losses but no output torque. A dual voltage source inverter topology is proposed, capable of driving an electrical machine without weakening its field in an extended speed range. For this purpose, a second inverter fed by a capacitor only is connected to the open-end side of the machine windings. Charging the floating capacitors is realized by adding an AC zero sequence current to the regular machine currents. The operating principles of the presented topology are demonstrated, showing their possible advantages when driving an electrical machine. Simulation results confirm the proposed ideas.
Original languageEnglish
Title of host publicationProceedings of the 4th Annual IEEE Energy Conversion Congress and Exposition (ECCE2012), 15-20 September 2012, Raleigh, NC, USA
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages2840-2846
DOIs
Publication statusPublished - 2012
Event4th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2012) - "Raleigh Convention Center", Raleigh, United States
Duration: 15 Sep 201220 Sep 2012
Conference number: 4
http://ieeexplore.ieee.org/document/6342421/

Conference

Conference4th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2012)
Abbreviated titleECCE 2012
CountryUnited States
CityRaleigh
Period15/09/1220/09/12
Internet address

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