<div class="csl-bib-body">
<div class="csl-entry">Montero, E. R., Vogelsberger, M., & Wolbank, T. (2021). Initial Rotor Position Detection of Induction Machines Using Feedforward Sensorless Saliency Separation. <i>Power Electronics and Drives</i>, <i>6</i>(41), 301–313. https://doi.org/10.2478/pead-2021-0020</div>
</div>
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dc.identifier.issn
2451-0262
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/176664
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dc.description.abstract
The use of induction machine spatial saliencies for sensorless vector control in the proximity of zero electrical frequency has been extensively researched over the last few decades. A robust technique to extract machine saliencies is called voltage step excitation, and it computes a saliency phasor out of phase current derivatives resulting from specific voltage steps generated by the inverter switching. Within the saliency phasor, all machine saliencies appear superposed. For some machine constructions, multiple saliencies are present, containing information about the spatial, magnetic and geometric state of the machine. Due to its direct relation with the rotor angle and its high accuracy, rotor slotting saliency is often chosen as the sensorless control signal. In order to exclusively access rotor slotting, saliency separation needs to be carried out, with the goal of eliminating all non-control saliencies from the saliency phasor. In this research, feedforward harmonic compensation based on look-up tables (LUTs) is chosen. The idea is to estimate each saliency in relation to amplitude and phase shift once, store such information in a torque-dependent LUT and use it for feedforward compensation. Yet, several saliencies are linked to the rotor position and, thus, the stored phase shift in the LUT is fixed to a defined rotor position at which the saliency estimation was performed. For the feedforward compensation to work during each sensorless start-up, an initial rotor slot detection must be carried out. This paper presents a technique to estimate initial rotor angle based only on the inherent characteristics of the induction machine multi-saliencies and an iterative feedforward compensation process that requires no extra resources and only a few PWM (Pulse Width Modulation) periods to achieve initial slot rotor angle. Experimental results measured at two different test benches prove the high accuracy of the method.
en
dc.language.iso
en
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dc.publisher
Sciendo
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dc.relation.ispartof
Power Electronics and Drives
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dc.subject
Induction machines
en
dc.subject
harmonic compensation
en
dc.subject
rotor slotting saliency
en
dc.subject
sensorless control
en
dc.title
Initial Rotor Position Detection of Induction Machines Using Feedforward Sensorless Saliency Separation
en
dc.type
Article
en
dc.type
Artikel
de
dc.description.startpage
301
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dc.description.endpage
313
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dcterms.dateSubmitted
2021-10-07
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dc.type.category
Original Research Article
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tuw.container.volume
6
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tuw.container.issue
41
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tuw.journal.peerreviewed
true
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tuw.peerreviewed
true
-
tuw.researchTopic.id
E5
-
tuw.researchTopic.id
I3
-
tuw.researchTopic.name
Efficient Utilisation of Material Resources
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tuw.researchTopic.name
Automation and Robotics
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tuw.researchTopic.value
50
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tuw.researchTopic.value
50
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dcterms.isPartOf.title
Power Electronics and Drives
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tuw.publication.orgunit
E370-02 - Forschungsbereich Antriebe und Leistungselektronik
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tuw.publisher.doi
10.2478/pead-2021-0020
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dc.date.onlinefirst
2021-11-24
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dc.identifier.articleid
2021
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dc.identifier.eissn
2543-4292
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dc.description.numberOfPages
13
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tuw.author.orcid
0000-0001-8835-1312
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wb.sciencebranch
Elektrotechnik, Elektronik, Informationstechnik
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wb.sciencebranch.oefos
2020
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wb.sciencebranch.value
100
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item.openairetype
Article
-
item.openairetype
Artikel
-
item.grantfulltext
none
-
item.cerifentitytype
Publications
-
item.cerifentitytype
Publications
-
item.languageiso639-1
en
-
item.openairecristype
http://purl.org/coar/resource_type/c_18cf
-
item.openairecristype
http://purl.org/coar/resource_type/c_18cf
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item.fulltext
no Fulltext
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crisitem.author.dept
E370-02 - Forschungsbereich Antriebe und Leistungselektronik
-
crisitem.author.dept
E370-02 - Forschungsbereich Antriebe und Leistungselektronik
-
crisitem.author.dept
E370-02 - Forschungsbereich Antriebe und Leistungselektronik
-
crisitem.author.orcid
0000-0001-8835-1312
-
crisitem.author.orcid
0000-0001-8823-5565
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crisitem.author.parentorg
E370 - Institut für Energiesysteme und Elektrische Antriebe
-
crisitem.author.parentorg
E370 - Institut für Energiesysteme und Elektrische Antriebe
-
crisitem.author.parentorg
E370 - Institut für Energiesysteme und Elektrische Antriebe