Interleaved PFC balance charger with passive lossless snubber for series-connected batteries

Yu Lin Juan, Tsair Rong Chen, Shu Ming Chen, Yi Lung Lee, Hsing Fu Wu

Research output: Contribution to journalArticle

Abstract

An interleaved balance charger for four series-connected batteries is proposed in this study. Each battery can be charged individually in the proposed charger for balance charging process. The charger is operated in the discontinuous conduction mode (DCM) for power factor correction (PFC). Two flyback and two buckboost converters are input parallel-connected and controlled with multi-phase interleaving technique. The input current ripple is then greatly reduced. Each flyback converter is used to convert the charging power from the grid to one corresponding battery. The two buckboost converters are output parallel-connected and followed by a dual output converter. Two batteries in the series-connected battery tank are charged by the dual output converter. Moreover, a passive lossless snubber is proposed to recover the leakage inductance energy in the flyback converters. A 500 W prototype is constructed and corresponding experiments are carried out. From the experimental results, it can be seen that the efficiency is improved by about 3% compared with the topology with common RCD snubbers. The measured power factor of the proposed charger is higher than 0.976.

Original languageEnglish
JournalIEICE Electronics Express
Volume16
Issue number21
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

Inductance
converters
electric batteries
Topology
Experiments
charging
output
ripples
inductance
leakage
topology
grids
prototypes
conduction
energy

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

@article{63d9ade2d6ca4acdad9a2f19d53ac735,
title = "Interleaved PFC balance charger with passive lossless snubber for series-connected batteries",
abstract = "An interleaved balance charger for four series-connected batteries is proposed in this study. Each battery can be charged individually in the proposed charger for balance charging process. The charger is operated in the discontinuous conduction mode (DCM) for power factor correction (PFC). Two flyback and two buckboost converters are input parallel-connected and controlled with multi-phase interleaving technique. The input current ripple is then greatly reduced. Each flyback converter is used to convert the charging power from the grid to one corresponding battery. The two buckboost converters are output parallel-connected and followed by a dual output converter. Two batteries in the series-connected battery tank are charged by the dual output converter. Moreover, a passive lossless snubber is proposed to recover the leakage inductance energy in the flyback converters. A 500 W prototype is constructed and corresponding experiments are carried out. From the experimental results, it can be seen that the efficiency is improved by about 3{\%} compared with the topology with common RCD snubbers. The measured power factor of the proposed charger is higher than 0.976.",
author = "Juan, {Yu Lin} and Chen, {Tsair Rong} and Chen, {Shu Ming} and Lee, {Yi Lung} and Wu, {Hsing Fu}",
year = "2019",
month = "1",
day = "1",
doi = "10.1587/elex.16.20190556",
language = "English",
volume = "16",
journal = "IEICE Electronics Express",
issn = "1349-2543",
publisher = "The Institute of Electronics, Information and Communication Engineers (IEICE)",
number = "21",

}

Interleaved PFC balance charger with passive lossless snubber for series-connected batteries. / Juan, Yu Lin; Chen, Tsair Rong; Chen, Shu Ming; Lee, Yi Lung; Wu, Hsing Fu.

In: IEICE Electronics Express, Vol. 16, No. 21, 01.01.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Interleaved PFC balance charger with passive lossless snubber for series-connected batteries

AU - Juan, Yu Lin

AU - Chen, Tsair Rong

AU - Chen, Shu Ming

AU - Lee, Yi Lung

AU - Wu, Hsing Fu

PY - 2019/1/1

Y1 - 2019/1/1

N2 - An interleaved balance charger for four series-connected batteries is proposed in this study. Each battery can be charged individually in the proposed charger for balance charging process. The charger is operated in the discontinuous conduction mode (DCM) for power factor correction (PFC). Two flyback and two buckboost converters are input parallel-connected and controlled with multi-phase interleaving technique. The input current ripple is then greatly reduced. Each flyback converter is used to convert the charging power from the grid to one corresponding battery. The two buckboost converters are output parallel-connected and followed by a dual output converter. Two batteries in the series-connected battery tank are charged by the dual output converter. Moreover, a passive lossless snubber is proposed to recover the leakage inductance energy in the flyback converters. A 500 W prototype is constructed and corresponding experiments are carried out. From the experimental results, it can be seen that the efficiency is improved by about 3% compared with the topology with common RCD snubbers. The measured power factor of the proposed charger is higher than 0.976.

AB - An interleaved balance charger for four series-connected batteries is proposed in this study. Each battery can be charged individually in the proposed charger for balance charging process. The charger is operated in the discontinuous conduction mode (DCM) for power factor correction (PFC). Two flyback and two buckboost converters are input parallel-connected and controlled with multi-phase interleaving technique. The input current ripple is then greatly reduced. Each flyback converter is used to convert the charging power from the grid to one corresponding battery. The two buckboost converters are output parallel-connected and followed by a dual output converter. Two batteries in the series-connected battery tank are charged by the dual output converter. Moreover, a passive lossless snubber is proposed to recover the leakage inductance energy in the flyback converters. A 500 W prototype is constructed and corresponding experiments are carried out. From the experimental results, it can be seen that the efficiency is improved by about 3% compared with the topology with common RCD snubbers. The measured power factor of the proposed charger is higher than 0.976.

UR - http://www.scopus.com/inward/record.url?scp=85076189808&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85076189808&partnerID=8YFLogxK

U2 - 10.1587/elex.16.20190556

DO - 10.1587/elex.16.20190556

M3 - Article

AN - SCOPUS:85076189808

VL - 16

JO - IEICE Electronics Express

JF - IEICE Electronics Express

SN - 1349-2543

IS - 21

ER -