Synchronization Stability of Grid-Following Converters Governed by Saturation Nonlinearities
نویسندگان
چکیده
Saturation nonlinearities caused by control limiters will be activated during large disturbances, complicating the stability of grid-tied voltage source converters (VSCs). This letter investigates large-disturbance synchronization VSC considering two typical limiters, i.e., hard limiter reference current and circular used to avoid overmodulation. A unified differential equation (UDE) model is proposed quantify transient responses boundaries system under different saturation conditions. It revealed that behaves as a when activated; while interaction between drives work source, making it immune instability.
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ژورنال
عنوان ژورنال: IEEE Transactions on Power Systems
سال: 2022
ISSN: ['0885-8950', '1558-0679']
DOI: https://doi.org/10.1109/tpwrs.2022.3175389