Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
권호 표지
DOI QR코드

DOI QR Code

Novel Active Voltage Quality Regulator with Adaptive DC-Link Voltage Control

  • Xiao, Guochun (School of Electrical Engineering, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University) ;
  • Zeng, Zhong (School of Electrical Engineering, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University) ;
  • Liu, Kai (School of Electrical Engineering, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University) ;
  • Hu, Zhiliang (School of Electrical Engineering, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University) ;
  • Wang, Zhaoan (School of Electrical Engineering, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University)
  • Received : 2010.05.29
  • Published : 2011.11.20
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a novel Active Voltage Quality Regulator (AVQR) topology with a thyristor rectifier and an adaptive dclink voltage control strategy are proposed. The proposed AVQR can efficiently mitigate the long duration variations (e.g. undervoltages/overvoltages), voltage imbalances and voltage harmonics. Compared with conventional AVQRs, it can regulate the load voltage very well with a much lower dc-link voltage. This is accomplished by replacing the diode rectifier with a thyristor rectifier. Moreover, its dc-link voltage can vary with the deviations of the supply voltage through the proposed adaptive dc-link voltage control strategy. All of these contribute to its significantly higher efficiency for online operating, which is very important and attractive for many applications. The proposed topology and control strategy are theoretically analyzed in detail. Simulation results are also provided in the paper. Finally, the feasibility and effectiveness of the proposed method are verified by means of experimental results from a 2kVA prototype. Both of the simulation and experimental results show that the proposed AVQR can achieve a much higher efficiency and similar regulation performance when compared with the conventional ones.

Keywords

References

  1. J. Arrillaga, M. H. J. Bollen, and N. R. Watson, "Power quality following deregulation," Proceedings of the IEEE, Vol. 88, No. 2, pp. 246-261, Feb. 2000. https://doi.org/10.1109/5.824002
  2. C. Da Costa Teixeira, "Power quality solutions for low and medium voltage critical loads," in Proc. IEEE/PES Transmission and Distribution Conference and Exposition, pp. 326-331, 2004.
  3. IEEE Recommended Practice for Monitoring Electric Power Quality, IEEE Standard 1159-2009, Mar. 2009.
  4. J. G. Nielsen and F. Blaabjerg, "A detailed comparison of system topologies for dynamic voltage restorers," IEEE Trans. Ind. Appl., Vol. 41, No. 5, pp. 1272-1280,Sep./Oct. 2005. https://doi.org/10.1109/TIA.2005.855045
  5. C. Meyer, R.W. De Doncker, Yun Wei Li, and F. Blaabjerg, "Optimized control strategy for a medium-voltage DVR-theoretical investigations and experimental results," IEEE Trans. Power Electron., Vol. 23, No. 6, pp. 2746- 2754, Nov. 2008. https://doi.org/10.1109/TPEL.2008.2002299
  6. M. J. Newman, D. G. Holmes, J.G. Nielsen, and F. Blaabjerg, "A dynamic voltage restorer (DVR) with selective harmonic compensation at medium voltage level," IEEE Trans. Ind. Appl., Vol. 41, No. 6, pp. 1744-1753, Nov./Dec. 2005. https://doi.org/10.1109/TIA.2005.858212
  7. Ming Tsung Tsai, "Design of a compact series-connected AC voltage regulator with an improved control algorithm," IEEE Trans. Ind. Electron., Vol. 51, No. 4, pp. 933-936, Aug. 2004. https://doi.org/10.1109/TIE.2004.831769
  8. M. T. Tsai, "Analysis and design of a cost-effective series connected AC voltage regulator," Proc.-Electr. Power Appl., Vol. 151, No. 1, pp. 107-115, 2004. https://doi.org/10.1049/ip-epa:20030914
  9. S. M. Silva, S. E. da Silveira, Ad. S. Reis, and B. J. C Filho, "Analysis of a dynamic voltage compensator with reduced switch-count and absence of energy storage system," IEEE Trans. Ind. Appl., Vol. 41, No. 5, pp.1255-1262, Sep./Oct. 2005. https://doi.org/10.1109/TIA.2005.853382
  10. B. H. Li, S. S. Choi, and D. M. Vilathgamuwa, "Transformerless dynamic voltage restorer," Proc Inst. Elect. Eng. Gener. Transm. Distrib., Vol. 149, No. 3, pp. 263-273, May 2002. https://doi.org/10.1049/ip-gtd:20020212
  11. D. M. Vilathgamuwa and H. M. Wijekoon, "Control and analysis of a new dynamic voltage restorer circuit topology for mitigating long duration voltage sags," in Proc. 37th IAS Annu. Meeting Ind. Appl. Conf., Vol. 2, pp. 1105-1112, 2002.
  12. W. E. Brumsickle, R. S. Schneider, G. A. Kuckjiff, D. M. Divan, and M. F. Mcgranaghan, "Dynamic sag correctors: cost-effective industrial power line conditioning," IEEE Trans. Ind. Appl., Vol. 37, No.1, pp. 212-217, Jan./Feb. 2001. https://doi.org/10.1109/28.903150
  13. C. C. Chen and D. M. Divan, "Simple topologies for single phase ac line conditioning," IEEE Trans. Ind. Appl., Vol. 30, No. 2, pp. 406-412, Mar./Apr. 1994. https://doi.org/10.1109/28.287516
  14. G. Xiao, Z. Hu, L. Zhang, B. Chen, and Z. Wang, "An active voltage quality regulator with variable DC-bus voltage topology," in Proc. 39th IEEE Power Electronics Specialists Conference, pp. 932-937, 2008.
  15. S. S. Choi, J. D. Li, and D. M. Vilathgamuwa, "A generalized voltage compensation strategy for mitigating the impacts of voltage sags/swells," IEEE Trans. Power Delivery, Vol. 20, No. 3, pp. 2289-2297, Jul. 2005. https://doi.org/10.1109/TPWRD.2005.848442
  16. J. Zhang, G. Xiao, Z. Nan, Z. Hu, B. Chen, and Z. Wang, "A research on the application of phase shift control for active voltage quality regulator," in Proc.38th IEEE Power Electronics Specialists Conference, pp.1132- 1137, 2007.
  17. T. X. Wang, S. S. Choi, and E. K. K. Sng, "Series compensation method to mitigate harmonics and voltage sags and swells," IET Gener. Transm. Distrib., Vol. 1, No. 1, pp. 96-103, Jan. 2007. https://doi.org/10.1049/iet-gtd:20060129
  18. D. M. Vilathgamuwa, A. A. D. Ranjith Perera, and S. S. Choi, "Performance improvement of the dynamic voltage restorer with closed-loop load voltage and current-mode control," IEEE Trans. Power Electron., Vol. 17, No. 5, pp. 824-834, Sep. 2002. https://doi.org/10.1109/TPEL.2002.802189
  19. F. Casanellas, "Losses in PWM inverters using IGBTs," IEE Proc.- Electr. Power Appl., Vol. 141, No. 5, pp. 235-239, Sep. 1994. https://doi.org/10.1049/ip-epa:19941349