New Hexagonal Three-Phase Voltage-Source Converter Topology for High-Power Applications

This paper presents a voltage-source converter (VSC) topology for high-power applications. This topology combines three three-phase converters with isolated dc buses. The proposed topology can be implemented by using two-level or multilevel three-phase converters. In this paper, three three-level neutral-point-clamped (3L-NPC) converters have been combined. Two zero-sequence blocking transformers (ZSBTs) are used to interconnect the three converters. In order to validate the good performance of the proposed VSC topology, two modulation techniques are implemented: phase-shifted carrier pulsewidth modulation (PSCPWM) and selective harmonic elimination (SHE) modulation. The VSC topology has been simulated in the simulation tool Saber, and the results have been validated experimentally in a test bench of 60 kVA.

[1]  Frede Blaabjerg,et al.  Multilevel inverter by cascading industrial VSI , 2002, IEEE Trans. Ind. Electron..

[2]  K. Gopakumar,et al.  A Hybrid Multilevel Inverter Topology for an Open-End Winding Induction-Motor Drive Using Two-Level Inverters in Series With a Capacitor-Fed H-Bridge Cell , 2010, IEEE Transactions on Industrial Electronics.

[3]  Javier Chivite-Zabalza,et al.  Isolated Double-Twin VSC Topology Using Three-Phase IPTs for High-Power Applications , 2014, IEEE Transactions on Power Electronics.

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

[5]  J. Chivite-Zabalza,et al.  A Large Power, Low-Switching-Frequency Voltage Source Converter for FACTS Applications With Low Effects on the Transmission Line , 2012, IEEE Transactions on Power Electronics.

[6]  Ricardo Quadros Machado,et al.  Operation of a Three-Phase Power Converter Connected to a Distribution System , 2013, IEEE Transactions on Industrial Electronics.

[7]  K. M. Smedley,et al.  VAR management in power systems: Basic objectives, solutions and multi-level converters for STATCOM applications , 2009, 2009 IEEE Power & Energy Society General Meeting.

[8]  Javier Chivite-Zabalza,et al.  Voltage Source Converter Topology for High-Power Applications Serializing Three-Phase Converters and H-Bridges , 2014, IEEE Transactions on Industrial Electronics.

[9]  Jon Are Suul,et al.  STATCOM-Based Indirect Torque Control of Induction Machines During Voltage Recovery After Grid Faults , 2010, IEEE Transactions on Power Electronics.

[10]  Sandeep Anand,et al.  DC Voltage Controller for Asymmetric-Twin-Converter-Topology-Based High-Power STATCOM , 2013, IEEE Transactions on Industrial Electronics.

[11]  K. Smedley,et al.  Synthesis of Multilevel Converters Based on Single-and/or Three-phase Converter Building Blocks , 2008, IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society.

[12]  Massimo Bongiorno,et al.  Voltage Dip Mitigation Using Shunt-Connected Voltage Source Converter , 2007 .

[13]  Keyue Smedley,et al.  Minimizing the Circulation Current in Hexagram Medium-Voltage Variable-Speed Drive by Coupled Inductors , 2011, IEEE Transactions on Industrial Electronics.

[14]  K. Smedley,et al.  Hexagram-Converter-Based STATCOM for Voltage Support in Fixed-Speed Wind Turbine Generation Systems , 2011, IEEE Transactions on Industrial Electronics.

[15]  Zhongdong Yin,et al.  Zero-sequence harmonics current minimization using zero-blocking reactor and Zig-Zag transformer , 2008, 2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies.

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

[17]  M. A. Rodriguez,et al.  Voltage balancing control in 3-Level Neutral-Point Clamped inverters using triangular carrier PWM modulation for FACTS applications , 2011, Proceedings of the 2011 14th European Conference on Power Electronics and Applications.

[18]  Yang Wang,et al.  Open-Winding Power Conversion Systems Fed by Half-Controlled Converters , 2013, IEEE Transactions on Power Electronics.

[19]  Gonzalo Abad,et al.  Modular Multilevel Converter With Different Submodule Concepts—Part I: Capacitor Voltage Balancing Method , 2013, IEEE Transactions on Industrial Electronics.

[20]  Gonzalo Abad,et al.  Modular Multilevel Converter With Different Submodule Concepts—Part II: Experimental Validation and Comparison for HVDC Application , 2013, IEEE Transactions on Industrial Electronics.

[21]  Marta Molinas,et al.  StatCom control at wind farms with fixed-speed induction generators under asymmetrical grid faults , 2013, IEEE Transactions on Industrial Electronics.

[22]  Aitor Laka,et al.  Analysis and Improved Operation of a PEBB-Based Voltage-Source Converter for FACTS Applications , 2013, IEEE Transactions on Power Delivery.

[23]  Tzung-Lin Lee,et al.  D-STATCOM With Positive-Sequence Admittance and Negative-Sequence Conductance to Mitigate Voltage Fluctuations in High-Level Penetration of Distributed-Generation Systems , 2013, IEEE Transactions on Industrial Electronics.

[24]  Jun Wen,et al.  Hexagram rectifier - Active front end of hexagram inverter for medium voltage variable speed drives , 2008, T&D 2008.

[25]  Mariusz Malinowski,et al.  A Survey on Cascaded Multilevel Inverters , 2010, IEEE Transactions on Industrial Electronics.

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

[27]  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.

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

[29]  R. Teodorescu,et al.  A Stationary Reference Frame Grid Synchronization System for Three-Phase Grid-Connected Power Converters Under Adverse Grid Conditions , 2012, IEEE Transactions on Power Electronics.

[30]  Liang Zhou,et al.  Power quality improvement at medium-voltage grids using Hexagram Active Power Filter , 2010, 2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[31]  J. Chivite-Zabalza,et al.  Novel Zero-Sequence Blocking Transformer (ZSBT) Using Three Single-Phase Transformers , 2013, IEEE Transactions on Energy Conversion.

[32]  Javier Chivite-Zabalza,et al.  A Large-Power Voltage Source Converter for FACTS Applications Combining Three-Level Neutral-Point-Clamped Power Electronic Building Blocks , 2013, IEEE Transactions on Industrial Electronics.

[33]  Hirofumi Akagi.  Classification, Terminology, and Application of the Modular Multilevel Cascade Converter (MMCC) , 2011 .