Optimized INFORM-measurement sequence for sensorless PM synchronous motor drives with respect to minimum current distortion

Author

Robeischl, E. ; Schroedl, M.

Author_Institution

Inst. of Electr. Drives & Machines, Vienna Univ. of Technol., Austria

Volume

1

fYear

2002

fDate

13-18 Oct. 2002

Firstpage

92

Abstract

In the paper a standard measurement sequence for INFORM-based sensorless position estimation of permanent magnet synchronous motors is analyzed and its properties with respect to the current deviation before and after the measurement are pointed out. Based on that a modified operating point adjusted measurement sequence with minimum current deviation and minimum time demand is introduced. Measurement results verify the improvement of the modified measurement sequence: The current distortion is reduced significantly resulting in reduced additional losses caused by the INFORM-measurement. Additionally, in the paper several measurement results concerning the performance of the sensorless position estimation under various load conditions are presented.

Keywords

control system analysis; control system synthesis; machine testing; machine theory; machine vector control; parameter estimation; permanent magnet motors; position control; synchronous motor drives; velocity control; load conditions; minimum current deviation; minimum current distortion; minimum time demand; modified operating point; optimized INFORM-measurement sequence; sensorless PM synchronous motor drives; sensorless position estimation; Current measurement; Digital signal processing; Distortion measurement; Drives; Loss measurement; Measurement standards; Position measurement; Pulse width modulation; Synchronous motors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the

Conference_Location

Pittsburgh, PA, USA

ISSN

0197-2618

Print_ISBN

0-7803-7420-7

Type

conf

DOI

10.1109/IAS.2002.1044072

Filename

1044072