Topologies for Power ConvertersIntroductionVersatile circuit topologies can be found in power electronics for differenct applications. In terms of conversion form, four categories can be identified: DC/DC converter, DC/AC converter(inverter), AC/DC converter(rectifier) , and AC/AC converter(cycloconverter). Aiming at reducing switching losses and EMI of power converters, a lot of soft switching techniques are developed for above mensioned four types of converters so that high effiency, small size, low weight can be achieved. DC/DC Converter
DC/AC Converter
Examples of inverters: Three Phase Inverter, Flywheel energy storage system. AC/DC ConverterAn AC/DC converter is usually used as a front-end converter in a power electronics system. A front-end converter has to be friendly to the utility line, that means high power factor, low input current THD(total harmonic distortion, and low EMI emission. To meet more and more strict regulations, advanced AC/DC converters have been developed for single phase system and three-phase system.
AC/AC ConverterSoft Switching Techniques |
Thank you for visiting.
This page is hosted through the courtesy of the Grainger Center for Electric
Machinery and Electromechanics, Department of Electrical and Computer
Engineering, University of Illinois, Urbana, Illinois, USA. The webmaster
can be reached at pels@energy.ece.uiuc.edu.
Contents copyright (c) 1996-2002, IEEE. All rights reserved. |