By Topic

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

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Malesani, L. ; Dept. of Electr. Eng., Padova Univ., Italy ; Tomasin, P. ; Toigo, V.

The paper presents an analysis of the behavior 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 in such kinds of converters allows true PWM, this is affected by some constraints in the switching sequence depending on the load current polarities, which 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 substantially the ripple. 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 wanted 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

Published in:

Industry Applications, IEEE Transactions on  (Volume:32 ,  Issue: 2 )