Dynamic Interactions between Parallel Grid-Forming Inverters in a Microgrid
نویسندگان
چکیده
The potential instability issues caused by the dynamic interactions between parallel grid-forming inverters are examined. approach adopted for analysis is s-domain admittance-based eigenvalue and mode shape analysis. This admittance based on a five-node circuit diagram after conversion of each electric element inverter control unit into impedance models. Eigenvalue results show that unstable resonance modes may exist due to two inverters. Impacts transmission line length, converter control’s virtual unit, voltage feed-forward examined via has negligible influence while stabilizes resonance. Finally, stability validated using electromagnetic transient (EMT) simulations.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2023
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app13126989