Modular DC-DC converters with submodules in input-series output-parallel (ISOP) connection have attracted the interests of researchers and industry. Due to its modularity, the ISOP converter allows a high voltage conversion ratio with enhanced reliability. Considering the ISOP converter contains multiple submodules, the converter structure can be more complicated and challenge the converter modeling, which is important for control design and system integration. To solve this issue, in this paper the small-signal modeling of the ISOP converter with dual-active-bridge (DAB) submodules is presented. To validate the accuracy of the proposed small-signal model, a switching model of the DAB-based ISOP converter is built in a simulation and the input impedance of the switching model is measured and compared to the proposed small-signal model.
|Title of host publication||2023 IEEE 32nd International Symposium on Industrial Electronics, ISIE 2023 - Proceedings|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Publication status||Published - 2023|
|Event||32nd IEEE International Symposium on Industrial Electronics, ISIE 2023 - Helsinki, Finland|
Duration: 19 Jun 2023 → 21 Jun 2023
|Name||IEEE International Symposium on Industrial Electronics|
|Conference||32nd IEEE International Symposium on Industrial Electronics, ISIE 2023|
|Period||19/06/23 → 21/06/23|
- DC-DC converter
- input-series output-parallel
- small-signal modeling.
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Control and Systems Engineering