NDLI: A Hybrid 2/3 Level Converter With Minimum Switch Count

Content Provider	IEEE Xplore Digital Library
Author	Mihalache, L.
Copyright Year	2006
Description	Author affiliation: Power Conversion Technol. Inc., Harmony, NY (Mihalache, L.)
Abstract	Multilevel topologies have emerged as a viable technique for medium and high voltage inverters but in the low voltage range they have failed to attract much interest due to their increased cost associated with the additional components and complicated control. This paper proposes a new hybrid converter that combines features from both two- and three-level converters with a reduced number of extra semiconductors. It is shown that for a very wide modulation index this converter can switch the maximum and the minimum phase voltages as a three-level converter while the third phase voltage is switched as a two-level converter. Only for a very narrow band in the modulation index range this topology behaves as a two-level converter. The proposed approach is implemented on a 16-bit fixed point DSP (ADSP 21992) and tested on a three-phase 20 kW IGBT-based PWM inverter
Sponsorship	IEEE Ind. Appl. Soc. IEEE Florida West Coast Sect
Starting Page	611
Ending Page	618
File Size	336289
Page Count	8
File Format	PDF
ISBN	1424403642
ISSN	01972618
DOI	10.1109/IAS.2006.256590
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation inverters Switching converters Low voltage Costs Switches Medium voltage Digital signal processing Topology Voltage control Narrowband
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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