TY - JOUR
T1 - A Matching Transformer-less Inrush Current Suppressor for Transformers Using a Series
T2 - Connected Small-Rated Voltage-Source PWM Converter-Consideration of the Control Gains and Required-Ratings of the PWM Converter
AU - Yamada, Hiroaki
AU - Funabiki, Shigeyuki
AU - Tanaka, Toshihiko
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2005/9/1
Y1 - 2005/9/1
N2 - This paper proposes a new inrush current suppressor using a series-connected small-rated PWM converter for a transformer. The PWM converter is directly connected in series between the source and transformer without a matching transformer. The inrush phenomena of the matching transformer, thus, can be avoided. The control gain and required-ratings of the series-connected small-rated PWM converter is discussed in detail. The capacity of the dc capacitor of the PWM converter is also discussed considering the active power flows into the PWM converter. The PSCAD/EMTDC is used to verify the validity of the proposed inrush current suppressor. A prototype experimental model is constructed and tested. The experimental results demonstrate that the proposed suppressor can perfectly overcome the inrush phenomena of transformers.
AB - This paper proposes a new inrush current suppressor using a series-connected small-rated PWM converter for a transformer. The PWM converter is directly connected in series between the source and transformer without a matching transformer. The inrush phenomena of the matching transformer, thus, can be avoided. The control gain and required-ratings of the series-connected small-rated PWM converter is discussed in detail. The capacity of the dc capacitor of the PWM converter is also discussed considering the active power flows into the PWM converter. The PSCAD/EMTDC is used to verify the validity of the proposed inrush current suppressor. A prototype experimental model is constructed and tested. The experimental results demonstrate that the proposed suppressor can perfectly overcome the inrush phenomena of transformers.
KW - inrush current
KW - matching transformer-less
KW - small-rated voltage-source PWM converter
KW - transformer
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U2 - 10.1541/ieejias.125.712
DO - 10.1541/ieejias.125.712
M3 - Article
AN - SCOPUS:85024725721
VL - 125
SP - 712
EP - 720
JO - IEEJ Transactions on Industry Applications
JF - IEEJ Transactions on Industry Applications
SN - 0913-6339
IS - 7
ER -