Modified space vector modulation for fault-tolerant operation of multilevel cascaded H-bridge inverters

In this study, fault-tolerant operation of multilevel cascaded H-bridge (CHB) inverters is presented and a novel switching strategy based on space vector modulation is proposed. A faulty power switch in high power converters can lead to expensive downtime, loss of productivity and increased costs. Various power switch faults and their influence on space vector diagram of CHB inverters are investigated. In the event of a fault, the output voltage of inverter is reduced and redundant switching states are used to generate balanced line-to-line voltages. By adding some devices to the basic structure, CHB inverter will operate with maximum achievable output voltage. Simulation and experimental results are shown for a five-level CHB inverter to validate the proposed modulation technique.

[1]  Lei Hu,et al.  Reconfiguration of Carrier-Based Modulation Strategy for Fault Tolerant Multilevel Inverters , 2007, IEEE Transactions on Power Electronics.

[2]  Pablo Lezana,et al.  Operation of a medium-voltage drive under faulty conditions , 2004, IEEE Transactions on Industrial Electronics.

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

[4]  Philippe Baudesson,et al.  Fault management of multicell converters , 2002, IEEE Trans. Ind. Electron..

[5]  Marcelo A. Pérez,et al.  Multilevel Converters: An Enabling Technology for High-Power Applications , 2009, Proceedings of the IEEE.

[6]  D. Theilliol,et al.  A New Fault Detection Technique for IGBT Based on Gate Voltage Monitoring , 2007, 2007 IEEE Power Electronics Specialists Conference.

[7]  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).

[8]  Bin Xu,et al.  Control Method for Cascaded H-Bridge Multilevel Inverter Failures , 2006, 2006 6th World Congress on Intelligent Control and Automation.

[9]  Hirofumi Akagi,et al.  A New Neutral-Point-Clamped PWM Inverter , 1981, IEEE Transactions on Industry Applications.

[10]  N. Zargari,et al.  Comparison of control schemes for multilevel inverter with faulty cells , 2004, 30th Annual Conference of IEEE Industrial Electronics Society, 2004. IECON 2004.

[11]  Longya Xu,et al.  Strategies of fault tolerant operation for three-level PWM inverters , 2006, IEEE Transactions on Power Electronics.

[12]  Bin Wu,et al.  Recent Advances and Industrial Applications of Multilevel Converters , 2010, IEEE Transactions on Industrial Electronics.

[13]  Sergio Busquets-Monge,et al.  Interfacing Renewable Energy Sources to the Utility Grid Using a Three-Level Inverter , 2006, IEEE Transactions on Industrial Electronics.

[14]  Jean-Luc Schanen,et al.  A Fault-Tolerant Control Strategy for Cascaded H-Bridge Multilevel Rectifiers , 2010 .

[15]  T. Martin McGinnity,et al.  Fault diagnosis of electronic systems using intelligent techniques: a review , 2001, IEEE Trans. Syst. Man Cybern. Part C.

[16]  Fang Zheng Peng,et al.  Multilevel inverters: a survey of topologies, controls, and applications , 2002, IEEE Trans. Ind. Electron..

[17]  J. Roudet,et al.  A Modular Strategy for Control and Voltage Balancing of Cascaded H-Bridge Rectifiers , 2008, IEEE Transactions on Power Electronics.

[18]  Alex Q. Huang,et al.  Control Strategy for Fault-Tolerant Cascaded Multilevel Converter based STATCOM , 2007, APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition.

[19]  S. Bernet,et al.  Design and comparison of 4.16 kV neutral point clamped, flying capacitor and series connected H-bridge multi-level converters , 2005, Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005..

[20]  M. Marchesoni,et al.  A non conventional power converter for plasma stabilization , 1988, PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference.

[21]  M. Melito,et al.  A novel protection technique devoted to the improvement of the short circuit ruggedness of IGBTs , 2003, IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468).

[22]  Cursino B. Jacobina,et al.  Detection and compensation of switch faults in a three level inverter , 2006 .

[23]  K.A. Corzine,et al.  Overdistention operation of cascaded multilevel inverters , 2006, IEEE Transactions on Industry Applications.

[24]  Bor-Ren Lin,et al.  Implementation of a Three-Phase Capacitor-Clamped Active Power Filter Under Unbalanced Condition , 2006, IEEE Transactions on Industrial Electronics.