TY - GEN
T1 - On-line detection of high resistance connections with inverse-sequence regulators in three phase induction motor drives
AU - Zarri, L.
AU - Mengoni, M.
AU - Gritli, Y.
AU - Tani, A.
AU - Filippetti, F.
AU - Lee, Sang Bin
PY - 2013
Y1 - 2013
N2 - High-resistance connections in electric drives can cause localized overheating and motor supply voltage unbalance, which degrade the performance, efficiency, and reliability of the system. An enhanced field oriented control scheme for induction machines that is capable of detecting resistive unbalance due to high resistance connections, and regulating the inverse sequence current is proposed as the main contribution of this paper. Resistive unbalance is detected and located while maintaining the symmetric drive behavior both under transient and steady-state operating conditions. The inverse-sequence regulator adopted in addition to the traditional current regulator for rotor field oriented control is used to compensate for the voltage unbalance caused by the inherent asymmetries in the cable and stator winding and by the poor contacts. A model that shows the relationship between the resistive unbalance and inverse-sequence current components is derived from the analysis of the proposed scheme. The theoretical analysis and the validity of the detection technique are confirmed with a preliminary experimental study on a 4 kW induction motor drive.
AB - High-resistance connections in electric drives can cause localized overheating and motor supply voltage unbalance, which degrade the performance, efficiency, and reliability of the system. An enhanced field oriented control scheme for induction machines that is capable of detecting resistive unbalance due to high resistance connections, and regulating the inverse sequence current is proposed as the main contribution of this paper. Resistive unbalance is detected and located while maintaining the symmetric drive behavior both under transient and steady-state operating conditions. The inverse-sequence regulator adopted in addition to the traditional current regulator for rotor field oriented control is used to compensate for the voltage unbalance caused by the inherent asymmetries in the cable and stator winding and by the poor contacts. A model that shows the relationship between the resistive unbalance and inverse-sequence current components is derived from the analysis of the proposed scheme. The theoretical analysis and the validity of the detection technique are confirmed with a preliminary experimental study on a 4 kW induction motor drive.
KW - High-resistance connections
KW - fault detection
KW - fault-tolerant drive
KW - induction motor drive
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U2 - 10.1109/ECCE.2013.6647292
DO - 10.1109/ECCE.2013.6647292
M3 - Conference contribution
AN - SCOPUS:84891118551
SN - 9781479903351
T3 - 2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013
SP - 4426
EP - 4431
BT - 2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013
T2 - 5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013
Y2 - 15 September 2013 through 19 September 2013
ER -