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Grandi, G, Loncarski, J and Dordevic, O (2014) Analysis and Comparison of Peak-to-Peak Current Ripple in Two-Level and Multilevel PWM Inverters. IEEE Transactions on Industrial Electronics, 62 (5). pp. 2721-2730. ISSN 0278-0046
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Abstract
Three-phase multilevel inverters are used in many medium- and high-power applications such as motor drives and grid-connected systems. Despite numerous PWM techniques for multilevel inverters have been developed, the impact of these modulation schemes on the peak-to-peak output current ripple amplitude has not been addressed yet. In this paper the analysis and the comparison of current ripple for two- and three-level voltage source inverters are given. Reference is made to optimal and popular modulation, so-called centered PWM, easily obtained by both carrier-based modulation (phase disposition, with proper common-mode voltage injection) and space vector modulation (nearest three vectors). It is shown that the peak-to-peak current ripple amplitude in three-level inverters can be determined on the basis of the ripple in two-level inverters, obtaining the same re-sults as by directly analyzing the output voltage waveforms of the three-level inverters. This procedure can be readily extended to higher level numbers. The proposed analytical developments are verified by both numerical simulations and experimental tests.
| Item Type: | Article |
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| Additional Information: | (c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. |
| Uncontrolled Keywords: | 08 Information And Computing Sciences, 09 Engineering |
| Subjects: | T Technology > TK Electrical engineering. Electronics. Nuclear engineering |
| Divisions: | Electronics & Electrical Engineering (merged with Engineering 10 Aug 20) |
| Publisher: | Institute of Electrical and Electronics Engineers |
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| Date Deposited: | 04 Dec 2015 13:29 |
| Last Modified: | 04 Sep 2021 13:45 |
| DOI or ID number: | 10.1109/TIE.2014.2363624 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/2434 |
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