Scheduled System Maintenance:
On Monday, April 27th, IEEE Xplore will undergo scheduled maintenance from 1:00 PM - 3:00 PM ET (17:00 - 19:00 UTC). No interruption in service is anticipated.
By Topic

Power Loss Minimization in Cascaded Multi-Level Converters for Distribution Networks

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)
Rehman-Shaikh, M.A. ; Control & Power Res. Group, London ; Mitcheson, P.D. ; Green, T.C.

This paper compares two structures of cascaded multilevel converter for 11 kV and 33 kV distribution networks for the two main competing IGBT technologies (Non Punch Through and Punch Through) with the intention of minimizing power loss. The traditional cascaded converter, which has equal-sized cells in its chain and the recently proposed chain with a ternary relationship between its dc-link voltages are both investigated. Models with 81 and 27 levels are developed for both kinds of converter after selection of suitable IGBT devices for comparative analysis. The total power losses in the IGBTs and diodes of each cell in the chain are estimated by simulation (160 separate cases) and it has been concluded that the conduction losses are dominant in both types of converters in NPT and PT IGBTs for llkV and 33 kV systems. The results have shown that the equal-sized converter is only likely to be useful in one case (27-levels in the 33 kV system) whereas the ternary-sequence converter produces lower losses in all the other cases. Further, it was found that the PT IGBT is the better option for ternary sequence whereas the NPT IGBT is better for the equal-sized converter.

Published in:

Industrial Electronics Society, 2007. IECON 2007. 33rd Annual Conference of the IEEE

Date of Conference:

5-8 Nov. 2007