NDLI: Space vector control and current harmonics in quasi-resonant soft-switching PWM conversion

Content Provider	IEEE Xplore Digital Library
Author	Malesani, L. Tomasin, P. Toigo, V.
Copyright Year	1994
Description	Author affiliation: Dept. of Electr. Eng., Padova Univ., Italy (Malesani, L.; Tomasin, P.)
Abstract	The paper presents an analysis of the behaviour of the modulation schemes useful for the soft-switched, quasi-resonant VSI power inverter in comparison with standard PWM techniques (sine-triangle and space-vector). Although the presence of a purely capacitive snubber across each power device allows true PWM in such converters, the switching sequence constraints due to the load current vector may result in a ripple content much higher than that obtained from conventional PWM schemes with the same switching frequency. However, it is also shown that the location and duration of the zero-vector state is a degree of freedom which can be useful to obtain different switching sequences, so reducing the ripple substantially. The above criteria have been adopted in developing a PWM technique based on space vectors, which is also described in the paper. Such a technique determines the optimum vector sequence which gives the required voltage vector, while reducing the ripple content. Results of simulations are reported, illustrating the differences between the various schemes and validating the effectiveness of the proposed modulation method.<>
Starting Page	1122
Ending Page	1129
File Size	741360
Page Count	8
File Format	PDF
ISBN	0780319931
DOI	10.1109/IAS.1994.377569
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-10-02
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Space vector pulse width modulation Pulse width modulation inverters Switching converters Pulse width modulation converters Switching frequency Snubbers Voltage Pulse width modulation Resonance Resonant inverters
Content Type	Text
Resource Type	Article

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