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A Novel Virtual Space Vector Modulation Strategy for the Neutral-Point Potential Comprehensive Balance of Neutral-Point-Clamped Converters
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  • Journal title : Journal of Power Electronics
  • Volume 16, Issue 3,  2016, pp.946-959
  • Publisher : The Korean Institute of Power Electronics
  • DOI : 10.6113/JPE.2016.16.3.946
 Title & Authors
A Novel Virtual Space Vector Modulation Strategy for the Neutral-Point Potential Comprehensive Balance of Neutral-Point-Clamped Converters
Zhang, Chuan-Jin; Tang, Yi; Han, Dong; Zhang, Hui; Zhang, Xiao; Wang, Ke;
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A novel Virtual Space Vector (VSV) modulation strategy for complete control of potential neutral point (NP) issues is proposed in this paper. The neutral point potential balancing problems of multi-level converters, which include elimination of low frequency oscillations and self-balancing for NP dc unbalance, are investigated first. Then a set of improved virtual space vectors with dynamic adjustment factors are introduced and a multi-objective optimization algorithm which aims to optimize these adjustment factors is presented in this paper. The improved virtual space vectors and the multi-objective optimization algorithm constitute the novel Virtual Space Vector modulation. The proposed novel Virtual Space Vector modulation can simultaneously recover NP dc unbalance and eliminate low frequency oscillations of the neutral point. Experiment results show that the proposed strategy has excellent performance, and that both of the neutral point potential issues can be solved.
Low-frequency oscillations;Multi-objective optimization;Neutral point potential unbalance;Self-balancing;Virtual Space Vector;
 Cited by
A Neutral-Point Voltage Balance Controller for the Equivalent SVPWM Strategy of NPC Three-Level Inverters, Journal of Power Electronics, 2016, 16, 6, 2109  crossref(new windwow)
A. Nabae, I. Takahashi, and H. Akagi, “A new neutral-point clamped PWM inverter,” IEEE Trans. Ind. Applications., Vol. IA-17, No. 5, pp. 518-523, Sep. 1981. crossref(new window)

N. Celanovich and D. Boroyevich, “A comprehensive study of neutral point voltage balancing problem in three-level neutral-point-clamped voltage source PWM inverters,” IEEE Trans. Power Electron., Vol. 15, No. 2, pp. 242-249, Mar. 2000. crossref(new window)

H. du Toit Mouton, “Natural balancing of three-level neutral-point-clamped PWM inverters,” IEEE Trans. Ind. Electron., Vol. 49, No. 5, pp. 1017–1025, Oct. 2002. crossref(new window)

R. Sommer, A. Mertens, C. Brunotte, and G. Trauth, "Medium voltage drive system with NPC three-level inverter using IGBTs," PWM Medium Voltage Drives (Ref. No. 2000/063) IEE Seminar, pp. 3/1-3/5, 2000.

R.W. Menzies, P. Steimer, J. K. Steinke, “Five-level GTO inverters for large induction motor drives,” IEEE Trans. Ind. Appl., Vol. 30, No. 4, pp. 938-944, Jul./Aug. 1994. crossref(new window)

J. Pou, R. Pindado, D. Boroyevich, and P. Rodriguez, “Limits of the neutral-point balance in back-to-back-connected three-level converters,” IEEE Trans. Power Electron., Vol. 19, No. 3, pp. 722-731, May 2004. crossref(new window)

C. Xia, X. Gu, T. Shi, and Y. Yan, “Neutral-point potential balancing of three-level inverters in direct-driven wind energy conversion system,” IEEE Trans. Energy Convers., Vol. 26, No. 1, pp. 18-29, Sep. 2010. crossref(new window)

C. Xia, H. Shao, Y. Zhang, and X. He, “Adjustable proportional hybrid SVPWM strategy for neutral-point-clamped three-level inverters,” IEEE Trans. Ind. Electron., Vol. 60, No.10, pp. 4234-4242, Aug. 2012. crossref(new window)

J. Pou, P. Rodriguez, V. Sala, S. Busquets-Monge, and D. Boroyevich, "Algorithm for the virtual vectors modulation in three-level inverters with a voltage-balance control loop," in Conference on Power Electronics and Applications, pp. P.1-P.9, 2005.

S. Busquets-Monge, J. Bordonau, D. Boroyevich, and S. Somavilla, “The nearest three virtual space vector PWM - a modulation for the comprehensive neutral-point balancing in the three-level NPC inverter,” IEEE Power Electron. Lett., Vol. 2, No.1, pp. 11-15, Mar. 2004. crossref(new window)

J. Pou, D. Boroyevich, and R. Pindado, “New feed forward space-vector PWM method to obtain balanced AC output voltages in a three-level neutral-point-clamped converter,” IEEE Trans. Ind. Electron., Vol. 49, No. 5, pp. 1026-1034, Oct. 2012. crossref(new window)

J. Shen, S. Schröder, R. Rösner, and S. El-Barbari, “A comprehensive study of neutral-point self-balancing effect in neutral-point-clamped three-level inverters,” IEEE Trans. Power Electron., Vol. 26, No. 11, pp. 3084-3095, Nov. 2011. crossref(new window)

P. Szczepankowski and J. Nieznanski, "Virtual space vector pulse width modulation algorithm for three-level NPC converters based on the final element shape functions," in Conference on Industrial Electronics Society(IECON), pp.3824-3829, 2013.

S. Busquets-Monge, J. D. Ortega, J. Bordonau, J. A. Beristain, and J. Rocabert, “Closed-loop control of a three-phase neutral-point-clamped inverter using an optimized virtual-vector-based pulse width modulation,” IEEE Trans. Ind. Electron., Vol. 55, No. 5, pp. 2061-2071, May 2008. crossref(new window)

J. Zaragoza, J. Pou, S. Ceballos, E. Robles, C. Jaen, and M. Corbalan, “Voltage-balance compensator for a carrier-based modulation in the neutral-point-clamped converter,” IEEE Trans. Ind. Electron., Vol. 56, No. 2, pp. 305-314, Nov. 2008. crossref(new window)

J. Pou, J. Zaragoza, P. Rodriguez, S. Ceballos, V.M. Sala,R. P. Burgos, and D. Boroyevich, “Fast-processing modulation strategy for the neutral-point-clamped converter with total elimination of low-frequency voltage oscillations in the neutral point,” IEEE Trans. Ind. Electron., Vol. 54, No. 4, pp. 2288-2294, Aug. 2007. crossref(new window)

Z. Ye, F. Li, Y. Xu, X. Deng, and Y. Zhang, “Simplified PWM strategy for neutral-point-clamped (NPC) three-level converter,” Journal of Power Electronics, Vol 14, No 3, pp 519-530, Mar. 2014. crossref(new window)

K. S. Amitkumar and G. Narayanan, "Simplified implementation of space vector PWM strategies for a three level inverter," in Conference on Industrial and Information Systems (ICIIS), pp. 1-6, 2012.

A. H. Bhat and N. Langer, “Capacitor voltage balancing of three-phase neutral-point-clamped rectifier using modified reference vector,” IEEE Trans. Power Electron., Vol. 29, No. 2, pp. 561-568, Apr. 2013. crossref(new window)

S. Fukuda and Y. Matsumoto, “Optimal-regulator-based control of NPC boost rectifiers for unity power factor and reduced neutral point potential variations,” IEEE Trans. Ind. Electron., Vol. 46, No. 3, pp. 527-534, Jun. 1999. crossref(new window)

T. Ito, M. Kamaga, Y. Sato, and H. Ohashi, "An investigation of voltage balancing circuit for DC capacitors in diode-clamped multilevel inverters to realize high output power density converters," in Conference on Energy Conversion Congress and Exposition (ECCE), pp. 3675-3682, 2010.

F. B. Grigoletto and H. Pinheiro, “Generalized pulse width modulation approach for DC capacitor voltage balancing in diode clamped multilevel converters,” IET Power Electron., Vol. 4, No. 1, pp. 89-100, Jan. 2011. crossref(new window)

J. Holtz and N. Oikonomou, “Neutral point potential balancing algorithm at low modulation index for three-level inverter medium voltage drives,” IEEE Trans. Ind. Appl., Vol. 43, No. 3, pp. 761-768, May 2007. crossref(new window)

J.-H. Seo, C.-H. Choi, D.-S. Hyun, “A new simplified space-vector PWM method for three-level inverters,” IEEE Trans. Power Electron., Vol. 16, No. 4, pp. 545-550, Jul. 2001.

S. Busquets-Monge, S. Somavilla, J. Bordonau, and D. Boroyevich, “Capacitor voltage balance for the neutral-point- clamped converter using the virtual space vector concept with optimized spectral performance,” IEEE Trans. Power Electron., Vol. 22, No. 4, pp. 1128-1135, Jul. 2007. crossref(new window)