Parallel and flux forced windings in discontinuous machines

J Proverbs, T Cox, J F Eastham

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)

Abstract

Linear Induction Motors commonly have the coils of each phase connected in series. The effect of this connection type is that equal currents flow throughout the phase winding, whilst the voltage across coil groups connected in series may vary significantly. As flux is proportional to voltage, the air gap flux may also significantly vary over the length of the machine. This can be an issue particularly where a conductive plate is traveling between a series of discontinuous machines at high speed, for example in electromagnetic launch systems. The plate entry into each discontinuous machine can cause significant drops in flux with a consequent large variation in thrust. With a machine using phase groups connected in parallel, the voltage is now forced whilst the current is variant. This has the effect of maintaining the air gap flux on entry and so producing a more consistent force profile, a significant benefit for high speed launch applications.
Original languageEnglish
Title of host publication2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages527-532
Number of pages6
ISBN (Electronic)978-1-4577-0061-3
ISBN (Print)978-1-4577-0060-6
DOIs
Publication statusPublished - May 2011
Event2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011, May 15, 2011 - May 18, 2011 - Niagara Falls, ON, Canada
Duration: 1 May 2011 → …

Conference

Conference2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011, May 15, 2011 - May 18, 2011
CountryCanada
CityNiagara Falls, ON
Period1/05/11 → …

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