Scheduled System Maintenance:
On May 6th, single article purchases and IEEE account management will be unavailable from 8:00 AM - 12:00 PM ET (12:00 - 16:00 UTC). We apologize for the inconvenience.
By Topic

Analysis of circulating energy for iZVT system: ZVT case study applied to a double conversion ups operating with FB PWM three-level inverter

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)
Oliveira, A.T. ; Power Electron. & Control Res. Group (GEPOC), Fed. Univ. of Santa Maria (UFSM), Santa Maria, Brazil ; Russi, J.L. ; Pinheiro, J.R.

In this paper the circulating energy of an integrated auxiliary commutation circuit applied to a double-conversion uninterruptible power supply is analyzed. This analysis is based on a comparison between the circulating energy of zero voltage transition (ZVT) and integrated zero voltage transition (iZVT) in auxiliary commutations circuits (ACC), both attached to the same double-conversion UPS. Two advantages are obtained in relation to classic ACC by using the technique of integration of ACC: the minimization of the reactive circulating energy and the reduction in the number of additional components. Thus, in iZVT UPS, it is obtained ZVT commutation for all the main switches and zero current switching (ZCS) or zero voltage switching (ZVS) for the auxiliary switches. The experimental results of the system rated at 1.2kW@70kHz are presented.

Published in:

Power Electronics Conference, 2009. COBEP '09. Brazilian

Date of Conference:

Sept. 27 2009-Oct. 1 2009