Comparison of Interleaving Methods of Parallel Connected Three-Level Bi-Directional Converters

The voltage and current ripples in the three-level bi-directional converter (TLBC) can be reduced by an interleaving technique that controls a phase difference between the modules of power converter. On the other hand, the inductor current ripple in TLBC is increased due to the circulating current b...

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Bibliographic Details
Published in:Energies (Basel) 2022-01, Vol.15 (1), p.6
Main Authors: Kim, Hae-In, Kim, Su-Hwan, Baek, Seung-Woo, Kim, Hag-Wone, Cho, Kwan-Yuhl, Kim, Gil-Dong
Format: Article
Language:English
Subjects:
capacitor current ripple
Electric potential
interleaving control
Methods
parallel control
Power converters
Ripples
three-level bi-directional converter (TLBC)
Voltage
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Summary:The voltage and current ripples in the three-level bi-directional converter (TLBC) can be reduced by an interleaving technique that controls a phase difference between the modules of power converter. On the other hand, the inductor current ripple in TLBC is increased due to the circulating current between the modules. In this paper, the effects of two interleaving methods on a two-phase TLBC, Z-type and N-type, are investigated and compared. In particular, capacitor current ripple, and voltage ripple are compared by two interleaving methods verified through Powersim (PSIM) simulation.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15010006