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A 13-levels Module (K-Type) with two DC sources for Multilevel Inverters
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. (Power Electronics)ORCID iD: 0000-0002-8982-5003
Mazandaran University of Science and Technology University.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. (Power Electronics)ORCID iD: 0000-0002-0208-9112
2019 (English)In: IEEE transactions on industrial electronics (1982. Print), ISSN 0278-0046, E-ISSN 1557-9948, Vol. 66, no 7, p. 5186-5196Article in journal (Refereed) Published
Abstract [en]

This paper presents a new reconfiguration module for asymmetrical multilevel inverters in which the capacitors are used as the DC links to creates the levels for staircase waveforms. This configuration of multilevel converter makes a reduction in DC sources. On the other hand, it is possible to generate 13 levels with lower DC sources. The proposed module of multilevel inverter generates 13 levels with two unequal DC sources (2VDC and 1VDC). It also involves two chargeable capacitors and 14 semiconductor switches. The capacitors are self-charging without any extra circuit. The lower number of components makes it desirable to use in wide range of applications. The module is schematized as two back-to-back T-type inverters and some other switches around it. Also, it can be connected as cascade modular which lead to a modular topology with more voltage levels at higher voltages. The proposed module makes the inherent creation of the negative voltage levels without any additional circuit (such as H-bridge circuit). Nearest level control switching modulation (NLC) scheme is applied to achieve high quality sinusoidal output voltage. Simulations are executed in MATLAB/Simulink and a prototype is implemented in the power electronics laboratory which the simulation and experimental results show a good performance.

Place, publisher, year, edition, pages
2019. Vol. 66, no 7, p. 5186-5196
Keywords [en]
Asymmetric, capacitors, multilevel inverter, nearest level control switching, power electronics, self-charging
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-34710DOI: 10.1109/TIE.2018.2868325ISI: 000460663300021OAI: oai:DiVA.org:miun-34710DiVA, id: diva2:1255526
Available from: 2018-10-12 Created: 2018-10-12 Last updated: 2019-05-07Bibliographically approved

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Samadaei, EmadBertilsson, Kent

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