TY - JOUR
T1 - Control Strategy for Input-Series–Output-Parallel Converters
AU - Ruan, Xinbo
AU - Chen, Wu
AU - Cheng, Lulu
AU - Tse, Chi K.
AU - Yan, Hong
AU - Zhang, Tao
PY - 2009/4
Y1 - 2009/4
N2 - The input-series-output-parallel (ISOP) converter, which consists of multiple dc-dc converter modules connected in series at the input and in parallel at the output, is an attractive solution for high input voltage and high power applications. This paper reveals the relationship between input voltage sharing (IVS) and output current sharing of the constituent modules of the ISOP converter. A novel IVS control strategy, which is decoupled with the output voltage regulation, is proposed. This control allows IVS and output voltage regulation to be designed independently. An ISOP converter, which uses the phase-shifted full-bridge (PS-FB) converter as the basic module, is considered. Based on the proposed control strategy, this ISOP converter together with the control circuit can be decoupled from several independent single-input and single-output systems. An ISOP converter consisting of three PS-FB modules is used to illustrate the design procedure, and a 3-kW experimental prototype is fabricated and tested. © 2009 IEEE.
AB - The input-series-output-parallel (ISOP) converter, which consists of multiple dc-dc converter modules connected in series at the input and in parallel at the output, is an attractive solution for high input voltage and high power applications. This paper reveals the relationship between input voltage sharing (IVS) and output current sharing of the constituent modules of the ISOP converter. A novel IVS control strategy, which is decoupled with the output voltage regulation, is proposed. This control allows IVS and output voltage regulation to be designed independently. An ISOP converter, which uses the phase-shifted full-bridge (PS-FB) converter as the basic module, is considered. Based on the proposed control strategy, this ISOP converter together with the control circuit can be decoupled from several independent single-input and single-output systems. An ISOP converter consisting of three PS-FB modules is used to illustrate the design procedure, and a 3-kW experimental prototype is fabricated and tested. © 2009 IEEE.
KW - Current sharing
KW - dc/dc converter
KW - parallel
KW - phase-shifted control
KW - series
KW - voltage sharing
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U2 - 10.1109/TIE.2008.2007980
DO - 10.1109/TIE.2008.2007980
M3 - RGC 21 - Publication in refereed journal
SN - 0278-0046
VL - 56
SP - 1174
EP - 1185
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 4
ER -