DC-link Oscillation Suppression For DAB-based Photovoltaic- Energy Storage Power Generation System
For the photovoltaic (PV)-energy storage system, the dc-link oscillation is usually generated due to the interactions between converters. This paper takes the dual-active bridge (DAB) converter integrating energy storage as the research object of the suppression. Based on the small-signal model of DAB converter, an active damping using capacitance voltage feedforward is proposed to simulate resistor and capacitor respectively on demand, thus reshaping the input impedance of the DAB converter. Finally, the strategy is validated by impedance modeling and the electromagnetic transient simulation.
Authors
- Zejing Wang (ORCID: https://orcid.org/0009-0000-8083-9647)
- Yunfei Xu (ORCID: https://orcid.org/0009-0003-1650-8132)
- Pengwei Chen (ORCID: https://orcid.org/0000-0003-4461-6192)
- Wenwei Jiang
- Htun ko ko latt
Institutions
- State Grid Corporation of China (China) (CN)
- Nanjing University of Aeronautics and Astronautics (CN)
Publication Details
- Published
- 2024-09-12
- DOI
- https://doi.org/10.1109/ciced63421.2024.10754295
- Primary Topic
- Power Systems and Renewable Energy
- Type
- article
- Field-Weighted Citation Impact
- 0.00