Hardware Demonstration of Weak Grid Oscillations in Grid-Following Converters

Conference · Sun Nov 14 04:00:00 EST 2021 · 2021 North American Power Symposium (NAPS)

DOI:https://doi.org/10.1109/naps52732.2021.9654557· OSTI ID:2202789

Bao, Li ^[1]; Fan, Lingling ^[1]; Miao, Zhixin; Wang, Zhengyu

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1. University of South Florida

The increasing penetration of inverter-based resources (IBRs) introduces some unexpected dynamic issues, including low-frequency oscillations. In this paper, a laboratory-scale grid-following voltage-source converter (VSC) system is implemented to demonstrate weak grid oscillations. Grid-following control is applied in VSC to provide active power, reactive power or ac voltage control. The test bed is also replicated in electromagnetic transient (EMT) simulation environment (MAT-LAB/SimPowerSystems) for benchmark purpose. Case studies are carried out to demonstrate low-frequency oscillations under real power/ac voltage or real power/reactive power control. The excellent agreement between the simulation and experimental results ensures that the two test beds are exchangeable and can be used for testing oscillation mitigation strategies in future research.

• Research Organization: University of South Florida
• Sponsoring Organization: U.S. Department of Energy
• DOE Contract Number: EE0008771
• OSTI ID: 2202789
• Conference Information: Journal Name: 2021 North American Power Symposium (NAPS)
• Country of Publication: United States
• Language: English