Salient PM Rotor Topology Selection for a Zero-Speed Injection Based Sensorless Controlled Machine

Jonathan Godbehere, Rafal Wrobel, David Drury, Phil Mellor

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)
320 Downloads (Pure)

Abstract

In this paper a performance comparison of permanent magnet (PM) salient rotor topologies is conducted. The analysis has been carried out for a machine design case study where numerous design requirements need to be satisfied simultaneously. The requirements include: low speed, high torque, low-duty transient operation and zero-speed injection based sensorless control capability. The majority of work in this field treats the problem of PM machine design for sensorless control in a decoupled manner, where only the rotor or stator geometry is altered to achieve the required sensorless performance. Such an approach makes the performance comparison between various machine topologies challenging, as they are usually designed using different techniques, or initial design assumptions. In this paper a holistic design approach is used where the stator and rotor sub-assemblies are optimised together. This allows an unbiased comparison between the candidate machine designs. The following six salient rotor topologies have been considered: inset, spoke, flat-IPM, V-IPM, dual layer V-IPM and inset with cut-out. The most promising design variants have been selected and are discussed in detail, with the aim to select the best performing machine design for prototype manufacture.
Original languageEnglish
Title of host publication8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)
PublisherInstitution of Engineering and Technology (IET)
Number of pages6
ISBN (Print)9781785611889
DOIs
Publication statusPublished - 19 Apr 2016
EventThe 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016) - The Hilton Hotel, Glasgow, Scotland, UK, Glasgow, United Kingdom
Duration: 19 Apr 201621 Apr 2016

Conference

ConferenceThe 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)
CountryUnited Kingdom
CityGlasgow
Period19/04/1621/04/16

Keywords

  • Sensorless control
  • machine design
  • high-frequency (HF) saliency
  • optimisation
  • finite element analysis (FEA)

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