Please use this identifier to cite or link to this item:
PIRA download icon_1.1View/Download Full Text
Title: More general definition of energy factor and its application in isolated converters
Authors: Shi, Z
Cheng, KWE 
Ho, SL 
Xu, W
Issue Date: 2009
Source: PESA 2009 : International Conference on Power Electronic Systems and Applications : 20th-22nd May 2009, p. [1-7]
Abstract: Energy factor proposed as a goodness factor for dc system is reviewed in this paper. More general definitions of energy storage and energy factor are presented based on the analysis of energy process. By these new definitions, energy factor and energy storage can be extended into ac system. They can be used to compare the performance of different topologies of dc converters. The investigation of transformer’s energy storage indicates that transformer has important influence to the characteristics of whole circuit. It depends on the way that transformer operates. If the transformer run as inductor (like Flyback converter), then it will improve the energy factor of the whole converter. But if the transformer run as a real transformer, then it will increase the non-active power consumption and make the energy factor worse. Simulation results explain BuckBoost and Flyback converter absorb the same amount of non-active power from front-end power supply. But the latter has better inner characteristics. Both input and inner characteristics of Buck converter are better than those of its isolated version which is Forward converter.
Keywords: Energy factor
Energy storage
Flyback converter
Forward converter
Publisher: Power Electronics Research Centre, The Hong Kong Polytechnic University
ISBN: 978-988-17471-3-6
Rights: Copyright © The Hong Kong Polytechnic University 2009.
Appears in Collections:Conference Paper

Files in This Item:
File Description SizeFormat 
PESA_2009_K210509115.pdf618.8 kBAdobe PDFView/Open
Open Access Information
Status open access
File Version Version of Record
View full-text via PolyU eLinks SFX Query
Show full item record

Page views

Last Week
Last month
Citations as of May 28, 2023


Citations as of May 28, 2023


Last Week
Last month
Citations as of May 25, 2023

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.