Title :
Carrier Signal Selection for Sensorless Control of PM Synchronous Machines at Zero and Very Low Speeds
Author :
Raca, Dejan ; García, Pablo ; Reigosa, David ; Briz, Fernando ; Lorenz, Robert D.
Author_Institution :
Magnetek Inc., Elevator & Energy Syst., Menomonee Falls, WI
Abstract :
This paper compares pulsating and rotating vector carrier signal injection for self-sensing (or sensorless) control of PM synchronous machines. The main focus of the study is evaluation of estimation errors due to the physical non-ideal attributes of both the machine and the inverter. Initial position and magnet polarity estimation are analyzed as well. Transient response and signal processing for both techniques is discussed for completeness. The theoretical analysis is supported by experimental and simulation evidence obtained using interior PM synchronous machines.
Keywords :
machine vector control; permanent magnet machines; synchronous machines; transient response; carrier signal selection; estimation errors; magnet polarity estimation; permanent magnet synchronous machines; sensorless control; signal processing; transient response; Electric machines; Estimation error; Frequency; Magnetic analysis; Magnetic flux; Magnetic separation; Sensorless control; Signal processing; Synchronous machines; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 2008. IAS '08. IEEE
Conference_Location :
Edmonton, Alta.
Print_ISBN :
978-1-4244-2278-4
Electronic_ISBN :
0197-2618
DOI :
10.1109/08IAS.2008.225
