Effects of inverter faults and line disturbances on sensorless position estimation

Fault tolerance of adjustable speed drives and ride-through capabilities against voltage sags, swells and under voltages have been widely addressed in the past. However, the research activities in these fields have been always focused only on conventional sensored motor drives. In this paper, a detailed analysis regarding the robustness of sensorless controlled electrical drives to inverter faults and line disturbances is presented. In particular, two categories of sensorless control strategies are tested under some unusual working conditions: model-based and HF injection based techniques. Experimental results performed on an IPMSM drive shows and compares the limitations of the analyzed sensorless implementations in presence of fault.

[1]  M. Sanada,et al.  Sensorless control strategy for salient-pole PMSM based on extended EMF in rotating reference frame , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[2]  T.A. Lipo,et al.  Fault tolerant three-phase AC motor drive topologies: a comparison of features, cost, and limitations , 2003, IEEE Transactions on Power Electronics.

[3]  Barrie Mecrow,et al.  Sensorless operation of a fault tolerant PM drive , 2003 .

[4]  Silverio Bolognani,et al.  Experimental fault-tolerant control of a PMSM drive , 2000, IEEE Trans. Ind. Electron..

[5]  Silverio Bolognani,et al.  Experimental fault-tolerant control of a PMSM drive , 1998, IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200).

[6]  Bimal K. Bose,et al.  Investigation of fault modes of voltage-fed inverter system for induction motor drive , 1992, Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting.

[7]  Thomas M. Jahns,et al.  IPM synchronous machine drive response to a single-phase open circuit fault , 2002 .

[8]  A. von Jouanne,et al.  Assessment of ride-through alternatives for adjustable speed drives , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[9]  A. Consoli,et al.  Low and zero speed sensorless control of synchronous reluctance motors , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[10]  Alfio Consoli,et al.  Industry application of zero-speed sensorless control techniques for PM synchronous motors , 2001 .

[11]  P.N. Enjeti,et al.  A low cost approach to improve the performance of an adjustable speed drive (ASD) under voltage sags and short-term power interruptions , 1998, 6th IEEE Power Electronics Congress. Technical Proceedings. CIEP 98 (Cat. No.98TH8375).

[12]  R. Belmans,et al.  Drive DC bus voltage control during power interruptions using kinetic energy recovery , 2002, 10th International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.02EX630).