By Topic

PWM Method to Eliminate Power Sources in a Non-Redundant 27-Level Inverter for Machine Drive Applications

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)
Juan Dixon ; Department of Electrical Engineering, Pontificia Universidad Católica de Chile, Vicuna Mackenna 4860, Santiago, Chile. fax 56-2-552-2563, e-mail ; Mauricio Rotella

A non-redundant, three-stage, 27-level inverter using "H" converters, is analysed for machine drive applications. The main advantage of this converter is the optimisation of levels with a minimum number of semiconductors. However, the system needs six bi-directional and isolated power supplies, and three more unidirectional if the machine is not using regenerative braking. In this paper these nine power supplies are reduced to only four, all of them unidirectional, with three strategies: 1) the utilization of independent and isolated windings for each phase of the motor, 2) the utilization of independent input transformers, and 3), the most important of them, the application of special PWM strategies to keep positive average power at the medium power converters, and zero average power at the low power converters. The generation of this PWM and control of this multi-converter, is being implemented using DSP controllers, which give flexibility to the system

Published in:

2006 IEEE International Symposium on Industrial Electronics  (Volume:2 )

Date of Conference:

9-13 July 2006