A Novel Seven-Level ANPC Converter Topology and Its Commutating Strategies

Traditional seven-level active neutral-point-clamped (ANPC-7L) converters suffer from the problems of dynamic voltage balancing in series switches and multilevel voltage jumping of phase output voltage during switching states transition. This paper presents a novel ANPC-7L topology with auxiliary commutating branches and elaborates on its commutating strategies. The presented topology and its commutating strategies completely resolve the two problems mentioned above. The validity of the presented topology and its commutating strategies are verified by experimental results from a 380 V/5 kW ANPC-7L converter.

[1]  S. J. Finney,et al.  Series-Connected IGBTs Using Active Voltage Control Technique , 2013, IEEE Transactions on Power Electronics.

[2]  M. Ciobotaru,et al.  The seven-level flying capacitor based ANPC converter for grid intergration of utility-scale PV systems , 2012, 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG).

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

[4]  P. W. Hammond,et al.  A new approach to enhance power quality for medium voltage AC drives , 1997 .

[5]  Guangfu Tang,et al.  New technologies of voltage source converter (VSC) for HVDC transmission system based on VSC , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[6]  Gonzalo Abad,et al.  Medium Voltage–High Power Converter Topologies Comparison Procedure, for a 6.6 kV Drive Application Using 4.5 kV IGBT Modules , 2012, IEEE Transactions on Industrial Electronics.

[7]  Zhe Chen,et al.  Five-Level Active-Neutral-Point-Clamped DC/DC Converter for Medium-Voltage DC Grids , 2017, IEEE Transactions on Power Electronics.

[8]  Baoming Ge,et al.  Medium-Voltage Multilevel Converters—State of the Art, Challenges, and Requirements in Industrial Applications , 2010, IEEE Transactions on Industrial Electronics.

[9]  Thierry Meynard,et al.  Stacked multicell converter (SMC): properties and design , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[10]  Zheng Xu,et al.  Modeling and Control of a Modular Multilevel Converter-Based HVDC System Under Unbalanced Grid Conditions , 2012, IEEE Transactions on Power Electronics.

[11]  Thierry Meynard,et al.  Stacked multicell converter (SMC): control and natural balancing , 2002, 2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289).

[12]  Vassilios G. Agelidis,et al.  An n-level flying capacitor based active neutral-point-clamped converter , 2010, The 2nd International Symposium on Power Electronics for Distributed Generation Systems.

[13]  Georgios Konstantinou,et al.  Generalisation of flying capacitor-based active-neutralpoint- clamped multilevel converter using voltage-level modulation , 2012 .

[14]  Thierry Meynard,et al.  Multicell converters: basic concepts and industry applications , 2002, IEEE Trans. Ind. Electron..

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

[16]  G. Papafotiou,et al.  Model predictive pulse pattern control , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[17]  F. Kieferndorf,et al.  A new medium voltage drive system based on ANPC-5L technology , 2010, 2010 IEEE International Conference on Industrial Technology.

[18]  P. Steimer,et al.  Active Neutral-Point-Clamped Multilevel Converters , 2005, 2005 IEEE 36th Power Electronics Specialists Conference.

[19]  Jiann-Fuh Chen,et al.  The techniques of the serial and paralleled IGBTs , 1996, Proceedings of the 1996 IEEE IECON. 22nd International Conference on Industrial Electronics, Control, and Instrumentation.

[20]  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..

[21]  Rui Li,et al.  A novel and reliable modulation strategy for active neutral-point clamped five-level converter , 2017, 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia).

[22]  Makoto Hagiwara,et al.  A Medium-Voltage Motor Drive With a Modular Multilevel PWM Inverter , 2010, IEEE Transactions on Power Electronics.

[23]  Kui Wang,et al.  Neutral-Point Potential Balancing of a Five-Level Active Neutral-Point-Clamped Inverter , 2013, IEEE Transactions on Industrial Electronics.