Title :
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
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;
Conference_Titel :
Industry Applications Conference, 1996. Thirty-First IAS Annual Meeting, IAS '96., Conference Record of the 1996 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-3544-9
DOI :
10.1109/IAS.1996.557028
