Please use this identifier to cite or link to this item: doi:10.22028/D291-30111
Title: Analysis and Exploitation of the Star-Point Voltage of Synchronous Machines for Sensorless Operation
Author(s): Grasso, Emanuele
Mandriota, Riccardo
König, Niklas
Nienhaus, Matthias
Language: English
Title: Energies
Volume: 12
Issue: 24
Publisher/Platform: MDPI
Year of Publication: 2019
Free key words: AC machines
motor modeling
sensorless control
sensorless drive
synchronous machines
DDC notations: 600 Technology
Publikation type: Journal Article
Abstract: In the field of sensorless drive of synchronous machines (SMs), many techniques have been proposed that can be applied successfully in most applications. Nevertheless, these techniques rely on the measurement of the phase currents to extract the rotor position information. In the particular case of low-power machines, the application of such techniques is challenging due to the limited bandwidth of the available current sensors. An alternative is offered by those techniques that exploit the star-point voltage rather than phase currents. This work aims at providing a model of the dynamic behavior of the star-point voltage and presenting a technique for extracting the rotor electrical position needed for sensorless operation of SMs. Two different circuitries for measuring the star-point voltage are also presented and then compared. The presented mathematical analysis and the measurement methods are validated both numerically and experimentally on a test machine.
DOI of the first publication: 10.3390/en12244729
Link to this record: urn:nbn:de:bsz:291--ds-301110
ISSN: 1996-1073
Date of registration: 3-Apr-2020
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Systems Engineering
Professorship: NT - Prof. Dr. Matthias Nienhaus
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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