TY - JOUR
T1 - Hybrid Bidirectional DC-DC Converter with Low Component Counts
AU - Li, Shouxiang
AU - Smedley, Keyue Ma
AU - Caldas, DIego Reis
AU - Martins, Yan Watanabe
N1 - Publisher Copyright:
© 2012 IEEE.
PY - 2018/3/1
Y1 - 2018/3/1
N2 - In this paper, a hybrid bidirectional dc-dc converter is presented, which is a combination of a switched-capacitor converter and an inductor-based converter with low component counts. The input current ripple and peak charging current are small with the help of the inductor. The proposed converter is applicable in the battery charge/discharge systems, such as the distributed renewable energy systems, battery equalizer, auxiliary power supplies, traction drive system, and dual-voltage automotive systems based in new electrical architecture concept, where common ground is not required and within the voltage-gain range of 2-6. A comprehensive analysis of the steady-state operation, small-signal model, and component stress is given. The comparison with an alternative topology shows the advantages of low component counts, low total capacitor voltage stress, low inductor current, and low total active switch stress for the 42/14 V voltage level. A 42/14 V prototype rated at 20-120 W with a peak efficiency of 97.8% in boost mode and 97.62% in buck mode was built to verify the analysis.
AB - In this paper, a hybrid bidirectional dc-dc converter is presented, which is a combination of a switched-capacitor converter and an inductor-based converter with low component counts. The input current ripple and peak charging current are small with the help of the inductor. The proposed converter is applicable in the battery charge/discharge systems, such as the distributed renewable energy systems, battery equalizer, auxiliary power supplies, traction drive system, and dual-voltage automotive systems based in new electrical architecture concept, where common ground is not required and within the voltage-gain range of 2-6. A comprehensive analysis of the steady-state operation, small-signal model, and component stress is given. The comparison with an alternative topology shows the advantages of low component counts, low total capacitor voltage stress, low inductor current, and low total active switch stress for the 42/14 V voltage level. A 42/14 V prototype rated at 20-120 W with a peak efficiency of 97.8% in boost mode and 97.62% in buck mode was built to verify the analysis.
KW - Bidirectional
KW - dc/dc converter
KW - hybrid
UR - http://www.scopus.com/inward/record.url?scp=85039799820&partnerID=8YFLogxK
U2 - 10.1109/TIA.2017.2785760
DO - 10.1109/TIA.2017.2785760
M3 - Article
AN - SCOPUS:85039799820
SN - 0093-9994
VL - 54
SP - 1573
EP - 1582
JO - IEEE Transactions on Industry Applications
JF - IEEE Transactions on Industry Applications
IS - 2
ER -
