Browse > Article
http://dx.doi.org/10.6113/TKPE.2012.17.4.306

A Single-Phase Embedded Z-Source DC-AC Inverter by Asymmetric Voltage Control  

Oh, Seung-Yeol (Korea Electronics Technology Institute(KETI))
Kim, Se-Jin (Dept. of Electrical Engineering, Chonnam Nat'l University)
Jung, Young-Gook (Dept. of Electrical Engineering, Daebul University)
Lim, Young-Cheol (Dept. of Electrical Engineering, Chonnam Nat'l University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.17, no.4, 2012 , pp. 306-314 More about this Journal
Abstract
In case of the conventional DC-AC inverter using two DC-DC converters with unipolar output capacitor voltages, for generating the AC output voltage, the output capacitor voltages of its each DC-DC converter must be higher than the DC input voltage. To solve this problem, this paper proposes a single-phase DC-AC inverter using two embedded Z-source converters with bipolar output capacitor voltages. The proposed inverter is composed of two embedded Z-source converters with common DC source and output AC load. The AC output voltage is obtained by the difference of the output capacitor voltages of each converter. Though the output capacitor voltage of converter is relatively low compared to the conventional method, it can be obtained the same AC output voltage. Moreover, by controlling asymmetrically the output capacitor voltage, the AC output voltage of the proposed system is higher than the DC input voltage. To verify the validity of the proposed system, a DSP(TMS320F28335) based single-phase embedded Z-source DC-AC inverter was made and the PSIM simulation was performed under the condition of the DC source 38V. As controlled symmetrically and asymmetrically the output capacitor voltages of each converter, the proposed inverter could produce the AC output voltage with sinusoidal waveform. Particularly, in case of asymmetric control, a higher AC output voltage was obtained. Finally, the efficiency of the proposed system was measured as 95% and 97% respectively in case of symmetric and asymmetric control.
Keywords
embedded Z-source DC-AC inverter; embedded Z-source converter; symmetric voltage control; asymmetric voltage control; output capacitor voltage; voltage gain; duty ratio;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 R. Antal, N. Muntean, and I. Boldea, "Modified Z-source single-phase inverter for single-phase PM synchronous motor drives," in Proc. 11th Int. Conf. Optim. Electr. Electron. Equipment, pp. 245-250, 2008.
2 I. Boldea, R. Antal, and N. Muntean, "Modified Z-Source single-phase inverter with two switches," in Proc. IEEE Int. Symp. Ind. Electron., pp. 257- 263, Jun./Jul., 2008.
3 F. Z. Peng, "Z-source inverter," IEEE Trans. Ind. Appl., Vol. 39, No. 2, pp. 504-510, Mar./Apr. 2003.   DOI   ScienceOn
4 J. Anderson and F. Z. Peng, "A class of quasi-Z-source inverters," in Proc. IEEE Ind. Appl. Soc. Annu. Meeting, pp. 1-7, 2008.
5 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, Jul. 2005.   DOI
6 D. Cao and F. Z. Peng, "A family of Z-source and quasi-Z-source DC-DC converters," in Proc. IEEE APEC '09, pp. 1097-1101, 2009.
7 U. Herrmann, H. G. Langer, and H. van der Broeck, "Low cost DC to AC converter for photovoltaic power conversion in residential applications," in Conf. Rec. of IEEE PESC '93, pp. 588-594, 1993.
8 E. Achille, T. Martire, C. Glaize, and C. Joubert, "Optimized DC-AC boost converters for modular photovoltaic grid-connected generators," in Proc. IEEE ISIE '04, Vol. 2, pp. 1005-1010, 2004.
9 J. Almazan, N. Vazquez, C. Hernandez, J. Alvarez, and J. Arau, "A comparison between the buck, boost and buck-boost inverters," in Proc. IEEE 7th Int. Power Electron. Congr., pp. 341-346, 2000.
10 Z. Yang and P. C. Sen, "Bidirectional DC-to-AC inverter with improved performance," IEEE Trans. Aerosp. Electron. Syst., Vol. 35, No. 2, pp. 533-542, Apr. 1999.   DOI
11 S. Funabiki, T. Tanaka, and T. Nishi, "A new buck-boost operation based sinusoidal inverter circuit," in Proc. IEEE PESC '02, pp. 1624-1629, 2002.
12 R. O. Caceres and I. Barbi, "A boost DC-AC converter: analysis, design, and experimentation," IEEE Trans. Power Electron., Vol. 14, No. 1, pp. 134 -141, Jan. 1999.   DOI   ScienceOn
13 P. Sanchis, A. Ursaea,E. Gubia, and L. Marroyo, "Boost DC-AC inverter: a new control strategy," IEEE Trans. Power Electron., Vol. 20, No. 2, pp. 343-353, March 2005.   DOI   ScienceOn
14 Jong-Gyu Park, Eun-Sung Jang, Hyun-Chil Choi, and Hwi-Beom Shin, "Design of three-phase buck-boost DC-AC inverter," Trans. KIEE, Vol. 58, No. 12, pp. 2396-2401, Dec 2009.
15 Se-Jin Kim, Young-Gook Jung, Young-Cheol Lim, and Joon-Ho Choi," A single-phase DC-AC inverter using two embedded Z-source converters," Trans. KIEE, Vol. 60, No. 6, pp. 1152-1162, Jun 2011.   과학기술학회마을   DOI
16 Y. Tang, S. Xie, and C. Zhang, "Single-phase Z-source inverter," in Proc. IEEE APEC '08, pp. 1266-1270, 2008.
17 Y. Berkovich, B. Axelrod, S. Tapuchi, and A. Ioinovici, "A family of four-quadrant, PWM DC-DC converters," in Conf. Rec. of IEEE PESC '07, pp. 1878-1883, 2007.
18 Erickson, R. W. and Maksimmovic, D, "Fundamentals of Power Electronics", 2nd Edition. Kluwer Academic Publishers, 2001.
19 M. Nagao and K. Harada, "Power flow of photovoltaic system using buck-boost PWM power inverter," in Proc. Int. Conf. Power Electron. Drive Sys., Vol. 1, pp. 144-149, May 1997.
20 N. Vazquez, J. Almazan, J. Alvarez, C. Aguilar, and J. Arau, "Analysis and experimental study of the buck, boost and buck-boost inverters", in Conf. Rec. of IEEE PESC '99, Vol. 2, pp. 801-806, 1999.