A wavelet modulation method for a quasi-Z-source inverter

LI Zhi-jun; ZHANG Jia-wei; WANG Juan; XI Wen-xia; ZHANG Zi-kun; ZHANG Chuan-bo

doi:10.13374/j.issn2095-9389.2017.12.015

Volume 39 Issue 12

Dec. 2017

Turn off MathJax

Article Contents

Article Navigation > Chinese Journal of Engineering > 2017 > 39(12): 1881-1887

LI Zhi-jun, ZHANG Jia-wei, WANG Juan, XI Wen-xia, ZHANG Zi-kun, ZHANG Chuan-bo. A wavelet modulation method for a quasi-Z-source inverter[J]. Chinese Journal of Engineering, 2017, 39(12): 1881-1887. doi: 10.13374/j.issn2095-9389.2017.12.015

Citation:

LI Zhi-jun, ZHANG Jia-wei, WANG Juan, XI Wen-xia, ZHANG Zi-kun, ZHANG Chuan-bo. A wavelet modulation method for a quasi-Z-source inverter[J]. Chinese Journal of Engineering, 2017, 39(12): 1881-1887. doi: 10.13374/j.issn2095-9389.2017.12.015

Citation:

PDF( 619 KB)

A wavelet modulation method for a quasi-Z-source inverter

doi: 10.13374/j.issn2095-9389.2017.12.015

School of Control Science and Engineering, Hebei University of Technology, Tianjin 300130, China

Received Date: 2017-03-01

Abstract

Abstract

A wavelet modulation strategy applied to a quasi-Z-source inverter was proposed. The regulating range of the shootthrough duty ratio could be increased by changing the locations of the sampling points set using traditional wavelet-modulation. The proposed modulation strategy divided the shoot-through zero vector into two portions, which were then individually inserted into both ends of the sampling time. Under the proposed strategy, the quasi-Z-source inverter could obtain a theoretical maximum constant shoot-through duty ratio without any extra switching frequencies. In addition, the proposed strategy was compared with traditional modulation strategies used in quasi-Z-source inverters. The boosting capacity, efficiency, harmonic and modulation ratio of the different modulation strategies for quasi-Z-source inverter were analyzed thoroughly. Finally, the performance of the proposed method was verified by simulation. Both the simulation results and theory verify that the strategy can reduce harmonic, increase voltage utilization rate, and enhance the boosting capacity.
- quasi-Z-source inverter,
- wavelet modulation,
- total harmonic distortion,
- voltage utilization rate

FullText(HTML)

References(10)

References

[1]	Anderson J, Peng F Z. Four quasi-Z-source inverters//IEEE Power Electronics Specialist Conference. Rhodes, 2008:2743
[3]	Shen M S, Wang J, Joseph A, et al. Constant boost control of the Z-source inverter to minimize current ripple and voltage stress. IEEE T Ind Appl, 2006, 42(3):770
[4]	Peng F Z, Shen M S, Qian Z M. Maximum boost control of the Zsource inverter//2004 IEEE 35th Annual Power Electronics Specialists Conference. Aachen, 2004:255
[5]	Liu Y S, Ge B M, Abu-Rub H, et al. An effective control method for three-phase quasi-Z-source cascaded multilevel inverter based grid-tie photovoltaic power system. IEEE T Ind Electron, 2014, 61(12):6794
[6]	Liu Y S, Ge B M, Abu-Rub H, et al. An effective control method for quasi-Z-source cascade multilevel inverter-based grid-tie singlephase photovoltaic power system. IEEE T Ind Inform, 2014, 10(1):399
[8]	Liu Y S, Ge B M, Abu-Rub H, et al. Hybrid pulsewidth modulated single-phase quasi-Z-source grid-tie photovoltaic power system. IEEE T Ind Inform, 2016, 12(2):621
[11]	Saleh S A. The implementation and performance evaluation of 3φ VS wavelet modulated AC-DC converters. IEEE T Power Electron, 2013, 28(3):1096
[12]	Saleh S A, Rahman M A. Development and experimental validation of resolution-level controlled wavelet-modulated inverters for three-phase induction motor drives. IEEE T Ind Appl, 2011, 47(4):1958
[15]	Saleh S A, Rahman M A. Experimental performances of the single-phase wavelet-modulated inverter. IEEE T Power Electron, 2011, 26(9):2650
[17]	Shen M S, Joseph A, Wang J, et al. Comparison of traditional inverters and Z-source inverter for fuel cell vehicles. IEEE T Power Electron, 2007, 22(4):1453