Hardware Demonstration of Weak Grid Oscillations in Grid-Following Converters
- 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:
- Univ. of South Florida, Tampa, FL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EE0008771
- OSTI ID:
- 2202789
- Journal Information:
- 2021 North American Power Symposium (NAPS), Conference: 2021 North American Power Symposium (NAPS), College Station Texas, 14-16 November 2021.
- Country of Publication:
- United States
- Language:
- English
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