Sensorless control of AC machines at low speed and standstill based on the “INFORM” method

Author

Schroedl, Manfred

Author_Institution

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

Volume

1

fYear

1996

fDate

6-10 Oct 1996

Firstpage

270

Abstract

The increasing use of AC machines compared to DC motors in electrical drive applications has several reasons. A very important advantage of AC machines is their simple construction. However, AC drives often need mechanical sensors (tachometers, position encoders) for field orientation. In many applications these sensors reduce robustness and increase costs of a drive considerably. The main objective of this paper is to present the “INFORM” method based on real-time inductance measurements for sensorless control of AC drives

Keywords

AC motor drives; control system analysis; control system synthesis; inductance measurement; machine control; machine theory; robust control; variable speed drives; velocity control; AC motor drive; INFORM control method; control design; control simulation; field orientation; low speed; real-time inductance measurements; robustness; sensorless control; standstill; AC machines; Current measurement; Frequency; Inductance measurement; Magnetic anisotropy; Magnets; Mechanical sensors; Robustness; Sensorless control; Stators;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1996. Thirty-First IAS Annual Meeting, IAS '96., Conference Record of the 1996 IEEE

Conference_Location

San Diego, CA

ISSN

0197-2618

Print_ISBN

0-7803-3544-9

Type

conf

DOI

10.1109/IAS.1996.557028

Filename

557028