A new generalized fault tolerant space vector modulator for cascaded multilevel converters

A new generalized fault tolerant space vector modulator for cascaded multilevel converters is presented. Exploiting the redundancy properties inherent in multilevel modulation schemes, a generalized space vector modulation algorithm is devised, also aimed to the extension of the normal, full rated operation, to a limited rate, fault tolerant mode. Based on the exploitation of switching vectors redundancy properties and discontinuous modulation technique, solutions have been devised for the equalization of semiconductor components switching frequency, in either no-fault and fault operating conditions, in order to reach an equal distribution of converter dissipated power. The new fault tolerant space vector modulation technique is validated through a case study.

[1]  Thomas A. Lipo,et al.  Pulse Width Modulation for Power Converters: Principles and Practice , 2003 .

[2]  Barrie Mecrow,et al.  A fault detection procedure for single phase bridge converters , 2002 .

[3]  Francisco D. Freijedo,et al.  Comparison of the FPGA Implementation of Two Multilevel Space Vector PWM Algorithms , 2008, IEEE Transactions on Industrial Electronics.

[4]  Dushan Boroyevich,et al.  A fast space vector modulation algorithm for multilevel three-phase converters , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[5]  M. Pacas,et al.  Modulation Strategies for Fault-Tolerant Operation of H-Bridge Multilevel Inverters , 2006, 2006 IEEE International Symposium on Industrial Electronics.

[6]  Marian P. Kazmierkowski,et al.  Control in Power Electronics , 2013 .

[7]  A. Del Pizzo,et al.  A generalized modulation technique for multilevel converters , 2007, 2007 International Conference on Power Engineering, Energy and Electrical Drives.

[8]  Frede Blaabjerg,et al.  Control in Power Electronics , 2002 .

[9]  Thierry Meynard,et al.  Survey on Fault Operation on Multilevel Inverters , 2010, IEEE Transactions on Industrial Electronics.

[10]  Holmes,et al.  Pulse width modulation for power converters , 2003 .

[11]  Bin Wu,et al.  High-Power Converters and ac Drives: Wu/High-Power Converters and ac Drives , 2006 .

[12]  Bin Wu,et al.  A Novel Switching Sequence Design for Five-Level NPC/H-Bridge Inverters With Improved Output Voltage Spectrum and Minimized Device Switching Frequency , 2006, IEEE Transactions on Power Electronics.

[13]  Bin Wu,et al.  High-Power Converters and AC Drives , 2006 .

[14]  Nguyen Van Nho,et al.  Comprehensive study on space-vector-PWM and carrier-based-PWM correlation in multilevel invertors , 2006 .

[15]  H. Tuusa,et al.  Unified Space-Vector Modulation Scheme for Multilevel Inverters , 2007, 2007 Power Conversion Conference - Nagoya.

[16]  A. Del Pizzo,et al.  Quick identification technique of fault conditions in cascaded H-Bridge multilevel converters , 2007, 2007 International Aegean Conference on Electrical Machines and Power Electronics.