Abstract
The isolated dual active bridge DC/DC converter is widely used in power electronic conversion systems due to its security, scalability, and easily realized soft switching. Meanwhile, interleaved technology is also widely used in high current conversion applications due to its low current ripple. Current sharing characteristics are analyzed in detail in this paper based on the topology characteristics of an interleaved low current ripple isolated DC/DC converter. At the same time, under dynamic conditions, the altering trend of the current deviation ratio and the relationship between the current deviation rate and the phase-shifted angle are revealed by small signal modeling. In addition, a single-zero double-pole compensation control method in the current loop is proposed. Finally, an experimental 670 W prototype is built to verify the correctness of the theoretical analysis and the effectiveness of the proposed method.
| Original language | English |
|---|---|
| Pages (from-to) | 1-9 |
| Journal | Journal of Power Electronics |
| Volume | 22 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2022 |
Keywords
- Current source bidirectional isolated DC/DC converter
- Low current ripple
- Parallel current sharing
- Single phase-shifted modulation
- Single-zero double-pole compensation
ASJC Scopus subject areas
- Control and Systems Engineering
- Electrical and Electronic Engineering