DocumentCode :
2631235
Title :
Decoupling and sensorless vector control scheme for single-phase induction motor drives
Author :
Azzolin, R.Z. ; Bernardes, T.A. ; Vieira, R.P. ; Gastaldini, C.C. ; Grundling, Hilton A.
Author_Institution :
Fed. Univ. of Rio Grande-FURG, Rio Grande, Brazil
fYear :
2012
fDate :
25-28 Oct. 2012
Firstpage :
1713
Lastpage :
1719
Abstract :
Vector control has improved the performance and energy efficiency in SPIM drives. However, high current and torque pulsations are produced by winding asymmetry of SPIM. This paper proposes a decoupling scheme to reduce the current and torque pulsations and improve the performance of vector control. A stator current observer is used to estimate the coupling signals, which are compensated by control law. This method is an alternative to improve the performance of single-phase induction motor used in hermetic refrigeration systems. The thermal efficiency of refrigeration system can be improved by the variable speed operation and the advantages of robustness and low-cost of single-phase induction motor can be maintained.
Keywords :
electric current control; energy conservation; induction motor drives; machine vector control; machine windings; observers; refrigeration; sensorless machine control; variable speed drives; SPIM drives; control law compensation; coupling signal estimation; decoupling scheme; energy efficiency; hermetic refrigeration systems; sensorless vector control scheme; single-phase induction motor drives; stator current observer; thermal efficiency; torque pulsations; variable speed operation; winding asymmetry; Decoupling algorithm; single-phase induction motor; stator current observer; vector control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society
Conference_Location :
Montreal, QC
ISSN :
1553-572X
Print_ISBN :
978-1-4673-2419-9
Electronic_ISBN :
1553-572X
Type :
conf
DOI :
10.1109/IECON.2012.6388716
Filename :
6388716
Link To Document :
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