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Method and device for detecting the presence of a permanent magnet of a rotor of a synchronous machine
ABB Oy, Finland.
KTH, School of Electrical Engineering and Computer Science (EECS), Electric Power and Energy Systems.
KTH, School of Electrical Engineering and Computer Science (EECS), Electric Power and Energy Systems.ORCID iD: 0000-0001-6831-3474
2016 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

A method of detecting a permanent magnet rotor of a synchronous machine, includes: injecting a voltage waveform to the stator windings of the synchronous machine, measuring two phase currents in the stator winding, transforming the two phase currents to a rotor reference frame to obtain a current waveform, sampling the current waveform to obtain positive and negative portion values, constructing first and second periodic waveforms by using the sampled positive and negative portion values, performing a frequency analysis of a first and second spectrums of the periodic waveforms, and determining whether a permanent magnet is present in the synchronous machine based on the spectrums.

Place, publisher, year, edition, pages
2016.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-247284OAI: oai:DiVA.org:kth-247284DiVA, id: diva2:1298057
Patent
US 10291165B2 (2019-05-14)
Note

QC 20191014

Available from: 2019-03-21 Created: 2019-03-21 Last updated: 2019-10-14Bibliographically approved

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Zanuso, GiovanniPeretti, Luca

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