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http://hdl.handle.net/10397/96607
Title: | A quantitative harmonics analysis approach for sinusoidal pulse-width-modulation based Z-source inverters | Authors: | Xu, W Chan, CH Chan, KW Or, SW Ho, SL Liu, M |
Issue Date: | 24-Jul-2022 | Source: | IET power electronics, 24 July 2022, v. 15, no. 9, p. 815-824 | Abstract: | The shoot-through (ST) states are essential for the operation of sinusoidal pulse-width-modulation (SPWM) based Z-source inverters. However, the insertion of shoot-through state unavoidably leads to output harmonics which is greatly affected by its distribution, especially for bipolar modulation schemes. With quantitative analysis, this paper investigates the mathematical relationship between the output harmonics and shoot-through states for single-phase Z-source inverters. A modified double-Fourier-transformation-based calculation scheme is proposed to estimate the output harmonics with different shoot-through states insertion methods. Simulations and hardware experiments with a 200 W single-phase Z-source converter under two bipolar modulation control methods verified the accuracy of the proposed theory. The quantitative analysis would be helpful for the design of Z-source converter's control strategy and modulation scheme. | Publisher: | Institution of Engineering and Technology | Journal: | IET power electronics | ISSN: | 1755-4535 | EISSN: | 1755-4543 | DOI: | 10.1049/pel2.12270 | Rights: | © 2022 The Authors. IET Power Electronics published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. The following publication Xu, W., Chan, C. H., Chan, K. W., Or, S. W., Ho, S. L., & Liu, M. (2022). A quantitative harmonics analysis approach for sinusoidal pulse‐width‐modulation based Z‐source inverters. IET Power Electronics, 15(9), 815-824 is available at https://doi.org/10.1049/pel2.12270. |
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