By Topic

Three-level H-bridge flying capacitor converter voltage balance dynamics analysis

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
$33 $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

2 Author(s)
Alex Ruderman ; Elmo Motion Control, 64 Gisin St., Petach Tikva 49103, Israel ; Boris Reznikov

Flying capacitor converter is an attractive choice due to its natural voltage balance property. Voltage balance dynamics analytical research methods reported to date are essentially based on a frequency domain analysis. They require high mathematical skills and the solutions are not truly analytical and difficult to use in an everyday practice. In this paper, a straightforward time domain approach based on stitching of consecutive switching intervals analytical solutions is applied to an H-bridge three-level flying capacitor converter. Small parameter analysis yields simple accurate expressions for voltage balance time constants revealing their dependences on load parameters, carrier frequency, and normalized voltage command. Voltage balance dynamics for AC PWM is obtained by averaging DC PWM exponential term decay factors on AC fundamental period.

Published in:

Power Electronics and Applications, 2009. EPE '09. 13th European Conference on

Date of Conference:

8-10 Sept. 2009