The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지
DOI QR코드

DOI QR Code

Improved LCCT Z-Source DC-AC Inverter for Ripple Reduction of Input Current and Capacitor Voltage

입력전류와 커패시터 전압의 맥동저감을 위한 개선된 LCCT Z-소스 DC-AC 인버터

  • Received : 2012.05.11
  • Accepted : 2012.09.17
  • Published : 2012.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, an improved LCCT(Inductor-Capacitor-Capacitor-Trans) Z-source inverter(Improved LCCT ZSI) with characteristics of Quasi Z-source inverter(QZSI) and LCCT Z-source inverter(LCCT ZSI) is proposed. The proposed inverter can also reduce the voltage stress and input current/capacitor voltage ripples compared with conventional LCCT ZSI and Quasi ZSI. A two winding trans in Z-impedance network of the conventional LCCT ZSI is replaced by a three winding trans in the proposed inverter. To verify the validity of the proposed inverter, a DSP controlled hardware was made and PSIM simulation was executed for each method. Comparing the current and voltage ripples of each method under the condition of input DC voltage 70[V] and output AC voltage 76[Vrms], the input current and capacitor voltage ripple factors of the proposed inverter were low as 11[%] and 1.4[%] respectively. And, for generation of the same output AC voltage of each method, voltage stress of the proposed inverter was low as 175[V] under the condition of duty ratio D=0.15. As mentioned above, we could know that the proposed inverter have the characteristics of low voltage stress, low ripple factor and low operation duty ratio compared with the conventional methods. Finally, the efficiency according to load change/duty ratio and the transient state characteristics were discussed.

Keywords

References

  1. Dylan Dah-Chuan Lu, "Synthesis of single phase DC/AC inverters", in Proc. Industrial Electronics and Applications(ICIEA'07), 2007, pp. 1922 - 1926.
  2. S.J. Kim, Y.G. Jung, Y.C. Lim, and S.H. Yang, "Output AC voltage control of a three-phase Z-source inverter by the voltage gain and modulation index control", Trans. KIEE. Vol. 59, No. 11, pp.1996-2005, NOV, 2010.
  3. F. Z. Peng, "Z-Source inverter," IEEE Trans. Ind. Applicat., Vol. 39, No.2, pp. 504-510, March/April 2003. https://doi.org/10.1109/TIA.2003.808920
  4. P.C. Loh, F. Gao, F. Blaabjerg, and A.L. Goh, "Buck-boost impedance networks", in Proc. European Conference on Power Electronics EPE'07, 2007, CD-ROM, pp. 1-10.
  5. Fang Z. Peng, X. Yuan, X. Fang, and Z. Qian, "Z-source inverter for adjustable speed drives," IEEE Power Electron. Letters, Vol. 1, No. 3, pp33-35, June 2003. https://doi.org/10.1109/LPEL.2003.820935
  6. T. Meenakshi and K. Rajambal, "Identification of an effective control scheme for Z-source inverter," Asian Power Electronics Journal, Vol. 4, No.1, pp. 22-28, April 2010.
  7. V.G. Agelidis, P.D. Ziogas and G. Joos, "Dead-band PWM switching patterns," IEEE Trans. Power Electron., Vol. 11, No. 4, pp. 522-531, July 1996. https://doi.org/10.1109/63.506117
  8. J. Anderson and F.Z. Peng, "Four quasi-Z-source inverters", in Proc. IEEE PESC''08, 2008, pp. 2743 - 2749.
  9. M. Adamowicz, "LCCT-Z-source inverters", in Proc. International Conference on Environment and Electrical Engineering (EEEiC'11), 2011, 8-11, pp. 1-6, CD-ROM.
  10. M. Adamowicz and N. Strzelecka "T-source inverter" Electrical Review, ISSN 0033-2097, Vol. 85, No. 10, 2009, pp.1-6.
  11. R. Strzelecki, M. Adamowicz, N. Strzelecka and W. Bury, "New type T-source inverter", in Proc. IEEE Compatibility and Power Electronics(IEEE CPE '09), 2009, pp. 191 - 195.
  12. M. Shen, J. Wang, A. Joseph, F. Z. Peng, L.M. Tolbert and D.J. Adams, "Constant boost control of the Z-source inverter to minimize current ripple and voltage stress", IEEE Trans. Ind. Applicat., Vol. 42, No. 3, pp. 770 - 778, 2006. https://doi.org/10.1109/TIA.2006.872927
  13. F. Z.Peng, M. Shen, and Z. Qian, "Maximum boost control of the Z-source inverter," IEEE Trans. Power Electron., Vol. 20, No. 4, pp. 833-838, July 2005. https://doi.org/10.1109/TPEL.2005.850927
  14. M.Shen, J. Wang, F. Z. Peng, L. M. Tolert, and D. J. Adams, "Maximum constant boost control of the Z-source inverter," in Proc. IEEE IAS'04, 2004. pp.142-147.
  15. M. Shen, J. Wang, A. Joseph, F. Z. Peng, L. M. Tolbert and D. J. Adams, "Constant boost control of the Z-source inverter to minimize current ripple and voltage stress", IEEE Trans. Ind. Applicat.,Vol. 42, No. 3, pp. 770-778, May-June 2006. https://doi.org/10.1109/TIA.2006.872927
  16. S.P. Hong, Y.G. Jung, and Y.C. Lim, "A study on the output voltage and efficiency of the single -phase Z-source inverters according to duty ratio", Trans. KIIEE, Vol.25, No.8, pp. 8-19, 2011. https://doi.org/10.5207/JIEIE.2011.25.8.008