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FPGA-based voltage measurements in AC drives
ABB Corporate Research, Sweden.
University of Padova, Italy.
2010 (English)In: Electrical Machines (ICEM), 2010 XIX International Conference on, 2010, 1-6 p.Conference paper, Published paper (Refereed)
Abstract [en]

In the modern sensorless and self-commissioning drives scenario, the availability of precise phase voltage measurement represents an undoubted advantage. But the task is not trivial, and few viable solutions are available. The present paper proposes an up-to-date digital method for the measurement of the instantaneous phase voltages of a three-phase PWM inverter. The phase-to-phase PWM inverter voltages are oversampled with respect to the switching period by fast A/D converters, which feed the FPGA-based digital integrator. The digital output is ready for further uses in any advanced control and estimation algorithm. Measurement repeatability, reduced size, tuning-free circuit are among the inherent side-advantages of the FPGA-based solution with respect to the existing analog ones. The paper includes design hints and a full batch of experimental tests and validations.

Place, publisher, year, edition, pages
2010. 1-6 p.
Keyword [en]
AC motor drives, PWM invertors, field programmable gate arrays, voltage measurement
National Category
Control Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-185865DOI: 10.1109/ICELMACH.2010.5608153Scopus ID: 2-s2.0-78649546572OAI: oai:DiVA.org:kth-185865DiVA: diva2:924431
Conference
Electrical Machines (ICEM), 2010 XIX International Conference on
Note

QC 20160608

Available from: 2016-04-28 Created: 2016-04-28 Last updated: 2016-06-08Bibliographically approved

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  • apa
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