Research output per year
Research output per year
Project Details
Description
High-voltage DC (HVDC) transmission is a future trend in photovoltaic (PV) systems due to higher efficiency and lower control complexity. High-power high-voltage interface DC-DC converters are a major bottleneck of HVDC PV systems. Hence, there is a significant value to explore the topologies, control schemes, and reliability of the interface DC-DC converters.
Dual active bridge (DAB) DC-DC converter has wide application in PV systems, and compared with traditional two-level DAB converters, multilevel converters can burden higher rated voltage and realize higher step-up ratio, thus reduce the number of cascaded converters and cut the hardware cost. However, the research about multilevel DAB converters is still in the initial stage. The aim of this Ph.D. project is thus to explore the performances of multilevel DAB converters on the following aspects: (a) Basic characteristics including static and dynamic characteristics, such as dead-time effects and DC bias. (b) Efficient modulation schemes. (c) Bi-oriented design considering efficiency and reliability. (d) Modulation of cascaded DAB converters.
Collaborator: Shandong University.
Funding: China Scholarship Council (CSC).
Dual active bridge (DAB) DC-DC converter has wide application in PV systems, and compared with traditional two-level DAB converters, multilevel converters can burden higher rated voltage and realize higher step-up ratio, thus reduce the number of cascaded converters and cut the hardware cost. However, the research about multilevel DAB converters is still in the initial stage. The aim of this Ph.D. project is thus to explore the performances of multilevel DAB converters on the following aspects: (a) Basic characteristics including static and dynamic characteristics, such as dead-time effects and DC bias. (b) Efficient modulation schemes. (c) Bi-oriented design considering efficiency and reliability. (d) Modulation of cascaded DAB converters.
Collaborator: Shandong University.
Funding: China Scholarship Council (CSC).
| Status | Finished |
|---|---|
| Effective start/end date | 01/12/2019 → 31/05/2023 |
Collaborative partners
- Shandong University
Keywords
- DAB converters
- control and modulation
- efficiency
- fault-tolerant method
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Research output
- 3 Journal article
-
Analysis and Optimal Modulation for 2/3-Level DAB Converters to Minimize Current Stress With Five-Level Control
Song, C., Sangwongwanich, A., Yang, Y., Pan, Y. & Blaabjerg, F., Apr 2023, In: I E E E Transactions on Power Electronics. 38, 4, p. 4596-4612 17 p., 10013776.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile5 Citations (Scopus)288 Downloads (Pure) -
Capacitor Voltage Balancing for Multilevel Dual-Active-Bridge DC–DC Converters
Song, C., Sangwongwanich, A., Yang, Y. & Blaabjerg, F., Mar 2023, In: IEEE Transactions on Industrial Electronics. 70, 3, p. 2566-2575 10 p., 9776614.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile9 Citations (Scopus)185 Downloads (Pure) -
Open-Circuit Fault Diagnosis and Tolerant Control for 2/3-Level DAB Converters
Song, C., Sangwongwanich, A., Yang, Y. & Blaabjerg, F., Apr 2023, In: I E E E Transactions on Power Electronics. 38, 4, p. 5392-5410 19 p., 10004016.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile10 Citations (Scopus)124 Downloads (Pure)