Experimental comparison of carrier and space vector PWM control methods for three-phase NPC converters

Multilevel converters are powerful converters in the medium-voltage high-power range. Inside this family of converters, the three-level neutral point clamped converter has its own importance. The main control methods associated with this converter are the carrier-based PWM with added DC components and the space vector PWM. Two of the most important features of the NPC converter are the neutral point balance and the output voltage spectrum. Both control methods efficiently manage the two characteristics. This paper experimentally compares these two issues and shows that the two methods produce almost the same results; the choice between one and the other should be made according to other requirements.

[1]  D. Soto,et al.  A comparison of high-power converter topologies for the implementation of FACTS controllers , 2002, IEEE Trans. Ind. Electron..

[2]  Leon M. Tolbert,et al.  Multilevel converters for large electric drives , 1999 .

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

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

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

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

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

[8]  Thomas A. Lipo,et al.  A four level inverter based drive with a passive front end , 1997, PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing and Electronic Specialists Conference 1972.

[9]  J.-J. Simond,et al.  Double-fed asynchronous motor-generator equipped with a 3-level VSI cascade , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[10]  H. Akagi,et al.  Analysis of variation of neutral point potential in neutral-point-clamped voltage source PWM inverters , 1993, Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting.

[11]  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..

[12]  Thomas A. Lipo,et al.  Pulse Width Modulation for Power Converters: Principles and Practice , 2003 .

[13]  D. G. Holmes,et al.  Optimized space vector switching sequences for multilevel inverters , 2003 .

[14]  D. Borojevic,et al.  A comprehensive study of neutral-point voltage balancing problem in three-level neutral-point-clamped voltage source PWM inverters , 1999, APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285).

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

[16]  Philippe Baudesson,et al.  A New Carrier-Based PWM Providing Common-Mode-Current Reduction and DC-Bus Balancing for Three-Level Inverters , 2007, IEEE Transactions on Industrial Electronics.