Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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A Three Phase Three-level PWM Switched Voltage Source Inverter with Zero Neutral Point Potential

  • Oh Won-Sik (Dept. of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology) ;
  • Han Sang-Kyoo (Dept. of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology) ;
  • Choi Seong-Wook (Dept. of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology) ;
  • Moon Gun-Woo (Dept. of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology)
  • Published : 2005.07.01
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Abstract

A new three phase three-level Pulse Width Modulation (PWM) Switched Voltage Source (SVS) inverter with zero neutral point potential is proposed. It consists of three single-phase inverter modules. Each module is composed of a switched voltage source and inverter switches. The major advantage is that the peak value of the phase output voltage is twice as high as that of a conventional neutral-point-clamped (NPC) PWM inverter. Thus, the proposed inverter is suitable for applications with low voltage sources such as batteries, fuel cells, or solar cells. Furthermore, three-level waveforms of the proposed inverter can be achieved without the switch voltage imbalance problem. Since the average neutral point potential of the proposed inverter is zero, a common ground between the input stage and the output stage is possible. Therefore, it can be applied to a transformer-less Power Conditioning System (PCS). The proposed inverter is verified by a PSpice simulation and experimental results based on a laboratory prototype.

Keywords

References

  1. Rodriguez, J., Jih-Sheng Lai and Fang Zheng Peng, 'Multilevel inverters: a survey of topologies, controls, and applications', IEEE Transactions on Industrial Electronics, Vol. 49, pp724-738, 2002 https://doi.org/10.1109/TIE.2002.801052
  2. Jih-Sheng Lai and Fang Zheng Peng, 'Multilevel converters-a new breed of power converters', IEEE Transactions on Industry Applications, Vol. 32, pp509-517, 1996 https://doi.org/10.1109/28.502161
  3. Fang Zheng Peng , 'A generalized multilevel inverter topology with self voltage balancing', IEEE Transactions on Industry Applications, Vol. 37, pp611-618, 2001 https://doi.org/10.1109/28.913728
  4. Bor-Ren Lin, 'Analysis and Implementation of a three-level PWM Rectifier/Inverter', IEEE Transactions on Aerospace and electronic systems, Vol. 36, No3, pp948-956, 2000 https://doi.org/10.1109/7.869514
  5. Hochgraf, C., Lasseter, R., Divan, D. and Lipo, T.A., 'Comparison of multilevel inverters for static V Ar compensation', IEEE Conference, Industry of Applications Society, vol. 2, pp921-928, 1994
  6. Akira Nabae, Isao Takahashi and Hirofumi Akagi, 'A New Neutral-Point-Clamped PWM Inverter', IEEE Transactions on Industrial Applications, Vol. IA-17, No5, pp.518-523, 1981 https://doi.org/10.1109/TIA.1981.4503992
  7. Meynard, T.A. and Foch, H., 'Multi-level conversion: high voltage choppers and voltage-source inverters', Power Electronics Specialists Conference, vol. 1, pp397-403, 1992
  8. Carrer, P., Meynard, J. and Lavieville, P., '4000V - 30A eight level IGBT inverter leg', Proceedings of European Power Electronics and Applications Conference, pp.106-111, 1995
  9. Lai, J. S. and Peng, F. Z., 'Multilevel converters - A new breed of power converters', IEEE Transactions on Industrial Applications, vol. 30, pp509-559, 1996
  10. K. R. M. N. Ratnayake, Y. Murai, and T. Watanabe., 'Novel PWM Scheme to Control Neutral Point voltage Variation in Three-Level Voltage Source Inverter', IEEE, Industry Applications Conference, vol. 3, pp1950-955, 1999
  11. Rufer, A., 'An aid in the teaching of multilevel inverters for high power applications', Proceedings of the Power Electronics Specialists Conference, pp347-352, 1995
  12. Haoran Zhang, Von Jouanne, A., Shaoan Dai, Wallace and A.K., Fei Wang, 'Multilevel inverter modulation schemes to eliminate common-mode voltages', IEEE Transactions on Industry Applications, Vol. 36, pp1645-1653, 2000 https://doi.org/10.1109/28.887217
  13. Bonnett, A.H., 'A comparison between insulation systems available for PWM-inverter-fed motors', IEEE Transactions on Industry Applications, Vol. 33, pp1331-1341, 1997 https://doi.org/10.1109/28.633814
  14. Bin Wu and DeWinter, F.A., 'Voltage stress on induction motors in medium-voltage (2300-6900-V) PWM GTO CSI drives', IEEE Transactions on Power Electronics, Vol. 12, pp213-220, 1997 https://doi.org/10.1109/63.558730