A New Space Vector Modulation Scheme for Multilevel Inverters Which Directly Vector Quantize the Reference Space Vector

A new space-vector-based sigma delta modulation scheme for any general N-level voltage source inverter is proposed in this paper, which directly quantizes the reference space vector. The proposed scheme uses the sigma delta modulation with the quantizer implemented by the proposed space vector quantizer. A new scheme is proposed for directly quantizing the reference space vector to the multilevel inverter switching vectors without mapping it into two-level inverter vector space. Voronoi regions of the multilevel inverter vector space in the proposed space vector quantizer are defined as a parallelogram with the inverter switching vectors as its vertices. The property of the integer values of the inverter switching vectors in 60° coordinates is utilized for the direct vector quantization of the instantaneous reference voltage space vector. The proposed scheme is implemented for five-level inverters realized by an open-end-winding induction motor fed with two three-level inverters from either side having symmetrical dc-link voltages, and results are presented.

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

[2]  M. Nakaoka,et al.  An Advanced Simple Configuration Delta-Sigma Modulation Three-Phase Inverter Implementing Space Voltage Vector Approach , 2007, 2007 IEEE Power Electronics Specialists Conference.

[3]  Shu Yuen Ron Hui,et al.  Analysis of random PWM switching methods for three-level power inverters , 1998 .

[4]  Allen Gersho,et al.  On the structure of vector quantizers , 1982, IEEE Trans. Inf. Theory.

[5]  Bin Wu,et al.  A general space vector PWM control algorithm for multilevel inverters , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..

[6]  Ian Dobson,et al.  Interpolative sigma delta modulators for high frequency power electronic applications , 1995, Proceedings of PESC '95 - Power Electronics Specialist Conference.

[7]  Mutsuo Nakaoka,et al.  A novel delta-sigma modulated space vector modulation scheme using scalar delta-sigma modulators , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..

[8]  Axel Mertens,et al.  Performance analysis of three-phase inverters controlled by synchronous delta-modulation systems , 1992, Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting.

[9]  J. Nieznanski,et al.  Performance characterization of vector sigma-delta modulation , 1998, IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200).

[10]  T. Green,et al.  Spectra of delta-sigma modulated inverters: an analytical treatment , 1992 .

[11]  Dong-Seok Hyun,et al.  A new simplified space-vector PWM method for three-level inverters , 1999, APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285).

[12]  M. R. Baiju,et al.  Vector-Quantized Space-Vector-Based Spread Spectrum Modulation Scheme for Multilevel Inverters Using the Principle of Oversampling ADC , 2013, IEEE Transactions on Industrial Electronics.

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

[14]  D. M. Divan,et al.  Delta modulation strategies for resonant link inverters , 1987, IEEE Power Electronics Specialists Conference.

[15]  H. V. Sorensen,et al.  An overview of sigma-delta converters , 1996, IEEE Signal Process. Mag..

[16]  Leon M. Tolbert,et al.  Multilevel converters for large electric drives , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

[17]  Chi Kwan Lee,et al.  A randomized voltage vector switching scheme for three-level power inverters , 2002 .

[18]  Cristian Lascu,et al.  Shaping of the noise spectrum in power electronic converters , 2010, 2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[19]  T. Green,et al.  Spectral characteristics of resonant link inverters , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

[20]  Frede Blaabjerg,et al.  Random pulse width modulation techniques for converter fed drive systems-a review , 1993, Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting.

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

[22]  K. Gopakumar,et al.  A multilevel inverter system for an induction motor with open-end windings , 2005, IEEE Transactions on Industrial Electronics.

[23]  Robert M. Gray,et al.  Oversampled Sigma-Delta Modulation , 1987, IEEE Trans. Commun..

[24]  Ashwin M. Khambadkone,et al.  A Space Vector PWM Scheme for Multilevel Inverters Based on Two-Level Space Vector PWM , 2006, IEEE Transactions on Industrial Electronics.

[25]  Haibing Hu,et al.  Comparisons of Space-Vector Modulation and Carrier-Based Modulation of Multilevel Inverter , 2008, IEEE Transactions on Power Electronics.

[26]  Ian Dobson,et al.  Hexagonal ΣΔ modulators in power electronics , 2005 .

[27]  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).

[28]  Remigiusz J. Rak,et al.  Vector Quantisation , 1998, Fundam. Informaticae.

[29]  Xin Qi,et al.  Optimal Control of Medium-Voltage Drives—An Overview , 2013, IEEE Transactions on Industrial Electronics.

[30]  M. R. Baiju,et al.  Simple multilevel inverter-based induction motor drive scheme using sigma–delta converter with space-vector quantiser , 2012 .

[31]  J. Nieznanski,et al.  Comparison of vector sigma-delta modulation and space-vector PWM , 2000, 2000 26th Annual Conference of the IEEE Industrial Electronics Society. IECON 2000. 2000 IEEE International Conference on Industrial Electronics, Control and Instrumentation. 21st Century Technologies.

[32]  K. Gopakumar,et al.  Three-level inverter configuration cascading two two-level inverters , 2003 .

[33]  M. R. Baiju,et al.  Spread spectrum modulation scheme for two-level inverter using vector quantised space vector-based pulse density modulation , 2011 .

[34]  Bin Wu,et al.  Multilevel Voltage-Source-Converter Topologies for Industrial Medium-Voltage Drives , 2007, IEEE Transactions on Industrial Electronics.