TY - GEN
T1 - Transient torque response improvement in presence of axial saturation due to Skewing of rotor slots in Induction Motors
AU - Salvatore, N.
AU - Gerada, C.
AU - Cascella, G. L.
AU - Sumner, M.
PY - 2006
Y1 - 2006
N2 - This paper proposes two new techniques to improve the transient torque response in presence of axial saturation due to skewing of rotor slots in induction motors. The effect of skew is to cause significant air-gap flux path saturation at one axial-end element of the rotor, loss of flux, and, consequently, of drive performance. The induction motor operations with variable q-axis current command during rapid speed changes are studied with a 3 dimensional Dynamic Magnetic Reluctance Model (DMRM). The new techniques for compensation of flux loss regard the Indirect Rotor Flux Oriented (IRFO) control. The first technique is based on a modified ωslip calculator, and the second one on a modified adaptive i-ω estimator. The paper proves the effectiveness of the two techniques and also shows the Stator Flux Oriented Sliding-Mode (SFO-SM) control is low sensitive to the rotor bars skew effect and ensures high performance, without any accurate parameter tuning.
AB - This paper proposes two new techniques to improve the transient torque response in presence of axial saturation due to skewing of rotor slots in induction motors. The effect of skew is to cause significant air-gap flux path saturation at one axial-end element of the rotor, loss of flux, and, consequently, of drive performance. The induction motor operations with variable q-axis current command during rapid speed changes are studied with a 3 dimensional Dynamic Magnetic Reluctance Model (DMRM). The new techniques for compensation of flux loss regard the Indirect Rotor Flux Oriented (IRFO) control. The first technique is based on a modified ωslip calculator, and the second one on a modified adaptive i-ω estimator. The paper proves the effectiveness of the two techniques and also shows the Stator Flux Oriented Sliding-Mode (SFO-SM) control is low sensitive to the rotor bars skew effect and ensures high performance, without any accurate parameter tuning.
KW - Induction motors
KW - Modeling
KW - Variable structure systems
UR - http://www.scopus.com/inward/record.url?scp=33845566538&partnerID=8YFLogxK
U2 - 10.1109/SPEEDAM.2006.1649805
DO - 10.1109/SPEEDAM.2006.1649805
M3 - Conference contribution
AN - SCOPUS:33845566538
SN - 1424401941
SN - 9781424401949
T3 - International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006
SP - 396
EP - 403
BT - International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006
T2 - International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006
Y2 - 23 May 2006 through 26 May 2006
ER -