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Self-commissioning procedure for inductance estimation in an electrical machine
ABB Corporate Research.
ABB Corporate Research.
2011 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

A method of estimating inductances and flux linkages of an electrical machine supplied with drive currents via current regulators. Drive current values are measured and fed back to the regulators for closed-loop control. The method includes providing one current regulator with an alternating current value either for a direct axis current reference i*d or for a quadrature axis current reference i*q of the machine current vector, while providing another current regulator with a predetermined direct current value for the remaining one of the two current references i*d and i*q. After a predetermined time, a varying signal is superimposed onto an output signal generated by the current regulator in response to the AC value. Finally, a contribution signal, which corresponds to the contribution of the superimposed varying signal to the drive currents, is determined, and the machine inductances and flux linkages are estimated on the basis of the contribution signal.

Place, publisher, year, edition, pages
2011.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-235002OAI: oai:DiVA.org:kth-235002DiVA, id: diva2:1248393
Patent
US 9379654B2 (2016-06-28)
Note

QC 20181207

also published as US2014145655 (A1), EP2555420 (A1), WO2013017386 (A1), CN103650331 (A), CN103650331 (B)

Available from: 2018-09-14 Created: 2018-09-14 Last updated: 2018-12-07Bibliographically approved

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Peretti, Luca
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