A new bidirectional hybrid multilevel inverter with 49-level output voltage using a single dc voltage source and reduced number of on components

Abstract This paper proposes an isolated bidirectional asymmetrical multilevel inverter topology composed by an H-bridge (HB) inverter connected to the primary side of transformer. The transformer secondary side is composed by two windings, and each one is connected to a new cell introduced in this work. The proposed new cell is based on the conventional HB inverter, where two bidirectional switches are added to each HB leg, thus resulting in the structure referred to as CHB-2bs. The transformer can also be composed by multiple secondary winding in order to provide the necessary voltages to supply as many as CHB-2bs cells are. A 600 W laboratory prototype with dc input voltage of 48 V and an ac output voltage of 220 V, 60 Hz using a grain-oriented silicon–steel toroidal transformer operating at 300 Hz is implemented to validate the theoretical assumptions and the advantages addressed to the CHB-2bs cell.

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

[2]  Mohamed El Hachemi Benbouzid,et al.  A Comparison of Symmetrical and Asymmetrical Three-Phase H-Bridge Multilevel Inverter for DTC Induction Motor Drives , 2011, IEEE Transactions on Energy Conversion.

[3]  Sergio Daher,et al.  A high resolution output voltage multilevel inverter topology with few cascade-connected cells , 2014, 2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014.

[4]  N. Hatziargyriou,et al.  Microgrids: an overview of ongoing research, development, anddemonstration projects , 2007 .

[5]  Juan Dixon,et al.  PWM Method to Eliminate Power Sources in a Nonredundant 27-Level Inverter for Machine Drive Applications , 2009, IEEE Transactions on Industrial Electronics.

[6]  Jonathan W. Kimball,et al.  A Model Modification Process for Grid-Connected Inverters Used in Islanded Microgrids , 2016, IEEE Transactions on Energy Conversion.

[7]  J. Bordonau,et al.  A New Single-Phase HF-Link Multilevel Inverter , 2005, 2005 IEEE 36th Power Electronics Specialists Conference.

[8]  Y. Lai,et al.  Topology for hybrid multilevel inverter , 2002 .

[9]  A. Rufer,et al.  Control of a hybrid asymmetric multilevel inverter for competitive medium-voltage industrial drives , 2003, IEEE Transactions on Industry Applications.

[10]  Frede Blaabjerg,et al.  Future on Power Electronics for Wind Turbine Systems , 2013, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[11]  Juan Dixon,et al.  Cascaded Nine-Level Inverter for Hybrid-Series Active Power Filter, Using Industrial Controller , 2010, IEEE Transactions on Industrial Electronics.

[12]  G. Sciutto,et al.  A new multilevel PWM method: a theoretical analysis , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[13]  Rolando Burgos,et al.  Review of Solid-State Transformer Technologies and Their Application in Power Distribution Systems , 2013, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[14]  Frede Blaabjerg,et al.  Methodology for the optimal design of transformerless grid-connected PV inverters , 2012 .

[15]  J. Chiasson,et al.  A new approach to solving the harmonic elimination equations for a multilevel converter , 2003, 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003..

[16]  Xiuchen Jiang,et al.  Protected Control Method for Power Conversion Interface Under Unbalanced Operating Conditions in AC/DC Hybrid Distributed Grid , 2016, IEEE Transactions on Energy Conversion.

[17]  Juan Dixon,et al.  Asymmetrical Multilevel Inverter for Traction Drives Using Only One DC Supply , 2010, IEEE Transactions on Vehicular Technology.

[18]  A. K. Panda,et al.  Performance of cascade multilevel H-Bridge inverter with single DC source by employing low frequency three-phase transformers , 2010, IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society.

[19]  Yun Wei Li,et al.  Analysis and Mitigation of Resonance Propagation in Grid-Connected and Islanding Microgrids , 2015, IEEE Transactions on Energy Conversion.

[20]  L.M. Tolbert,et al.  Harmonic optimization of multilevel converters using genetic algorithms , 2004, IEEE Power Electronics Letters.

[21]  Fang Zheng Peng,et al.  Multilevel converters-a new breed of power converters , 1995, IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting.

[22]  Nirwan Ansari,et al.  Decentralized Controls and Communications for Autonomous Distribution Networks in Smart Grid , 2013, IEEE Transactions on Smart Grid.

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

[24]  Alfred Rufer,et al.  Control of a hybrid asymmetric multilevel inverter for competitive medium-voltage industrial drives , 2003, IEEE Transactions on Industry Applications.

[25]  Zhe Chen,et al.  A Review of the State of the Art of Power Electronics for Wind Turbines , 2009, IEEE Transactions on Power Electronics.

[26]  Cassiano Rech,et al.  Comparison of Neutral-Point-Clamped, Symmetrical, and Hybrid Asymmetrical Multilevel Inverters , 2010, IEEE Transactions on Industrial Electronics.

[27]  Gerd Griepentrog,et al.  Towards next generation photovoltaic inverters , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[28]  Brendan Peter McGrath,et al.  Multicarrier PWM strategies for multilevel inverters , 2002, IEEE Trans. Ind. Electron..

[29]  Dong Hui,et al.  Battery Energy Storage Station (BESS)-Based Smoothing Control of Photovoltaic (PV) and Wind Power Generation Fluctuations , 2013, IEEE Transactions on Sustainable Energy.

[30]  Fernando L. M. Antunes,et al.  Multilevel Inverter Topologies for Stand-Alone PV Systems , 2013, IEEE Transactions on Industrial Electronics.

[31]  Thomas A. Lipo,et al.  Hybrid multilevel power conversion system: a competitive solution for high power applications , 1999 .

[32]  Christian Klumpner,et al.  Design considerations for core material selection and operating modes for a high frequency transformer used in an isolated DC/DC converter , 2011, Proceedings of the 2011 14th European Conference on Power Electronics and Applications.