NDLI: A new four-level PWM inverter topology for high power applications - effect of switching strategies on power losses distribution

Content Provider	IEEE Xplore Digital Library
Author	Perantzakis, G.S. Xepapas, F.H. Manias, S.N.
Copyright Year	2004
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Greece (Perantzakis, G.S.; Xepapas, F.H.; Manias, S.N.)
Abstract	In this paper a novel four-level pulse width modulation (PWM) hybrid inverter topology is proposed which is composed of a conventional two-level and a three-level neutral point clamped (NPC) inverter suitable for high-voltage power applications. The proposed topology when it is compared to the conventional four-level NPC PWM inverter exhibits the following advantages: (a) ability of changing the losses distribution profile among the devices by selecting the suitable switching strategy, (b) reduction of total inverter power semiconductor device losses, (c) ability of bidirectional operation of all switches, (d) series connected clamping diodes are not needed and (e) flexibility of using existing power semiconductor modules that makes simple the implementation of the proposed power topology. Moreover, the effect of different switching strategies on the conduction and switching losses profile of the proposed inverter is examined by varying the index modulation depth and the load power factor. A suitable losses calculation method for hybrid multilevel inverter is used and a comparison of losses distribution profiles between the proposed inverter and the conventional four-level inverter is carried out. Finally, the theoretical results are confirmed by simulation and experimental results.
Sponsorship	IEEE Power Electon. Soc
Starting Page	4398
Ending Page	4404
File Size	445407
Page Count	7
File Format	PDF
ISBN	0780383990
ISSN	02759306
DOI	10.1109/PESC.2004.1354778
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-06-20
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation inverters Topology Voltage Power semiconductor switches Semiconductor diodes Frequency Phase modulation Amplitude modulation Clamps Insulated gate bipolar transistors
Content Type	Text
Resource Type	Article

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