Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Design and Evaluation of a Short-Circuit Rotor-Ring for Enhanced Self-Sensing Capability in a Slotless PM Motor
KTH, School of Electrical Engineering and Computer Science (EECS), Electric Power and Energy Systems. Atlas Copco Industrial Technique AB.
KTH, School of Electrical Engineering and Computer Science (EECS), Electric Power and Energy Systems. KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0002-6283-7661
Show others and affiliations
2019 (English)In: IEEE transactions on industrial electronics (1982. Print), ISSN 0278-0046, E-ISSN 1557-9948Article in journal (Refereed) Epub ahead of print
Abstract [en]

This paper deals with the design and evaluation of a short-circuit rotor-ring for enhanced self-sensing capability in a 2-pole slotless permanent-magnet motor. High-frequency rotor anisotropy is enabled by adding as hort-circuited rotor-ring. Optimal ring-dimensions are determined by parametric numerical studies. An effective high-frequency saliency of up to 1.8 is demonstrated. The steady-state estimation error is within ±2◦, practically unaffected by current level (in contrast to slotted self-sensing electrical machinery) due to the large effective air-gap. The proposed observer performs properly also during dynamic load changes. Fall-times from 3000 to 0 rpm in less than 50 ms with negligible overshoot are demonstrated. Also parasitic effects such as power losses, heating and torque ripple are analyzed.

Place, publisher, year, edition, pages
2019.
Keywords [en]
Rotor position estimation, saliency-based sensorless control, self-sensing, slotless permanent magnet motor.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-253269DOI: 10.1109/TIE.2019.2921266OAI: oai:DiVA.org:kth-253269DiVA, id: diva2:1324649
Funder
StandUpSwedish Energy Agency, 44162-1
Note

QC 20190802

Available from: 2019-06-14 Created: 2019-06-14 Last updated: 2019-08-02Bibliographically approved

Open Access in DiVA

fulltext(3779 kB)81 downloads
File information
File name FULLTEXT01.pdfFile size 3779 kBChecksum SHA-512
e6efa068f8791e6c85096df548204d0de7924051df6b07307704623d1b7f548070c9e89638b606cf568b60b09a0b8183e149ea6f4cdfee5930f007f96d3169f0
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Millinger, JonasWallmark, Oskar
By organisation
Electric Power and Energy SystemsAeronautical and Vehicle Engineering
In the same journal
IEEE transactions on industrial electronics (1982. Print)
Other Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 81 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 91 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf