Abstract
In this article, we develop a novel passive islanding detection strategy for a hybrid distributed generation (DG) system that uses variational mode decomposition (VMD). The voltage signal's ripple content is evaluated at the point of common coupling (PCC). It splits the input voltage signal into its individual modes or intrinsic mode functions (IMFs). The upper envelope of first mode's IMF has been used for island detection. This strategy relies solely on internal, mutable, and variational processes. Results from the tests show that the suggested approach can reliably separate the islanding event from other events. Even with no power imbalance, the suggested approaches can identify islanding in about 0.15 s. It has been tested in a wide variety of operational scenarios and proved in non-island situations. The suggested solutions are easy to implement, since they do not require a classifier, also had no non-detection zone (NDZ), and function regardless of the amount and kind DG that might connect to the utility grid.
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Acknowledgements
This work was supported by the Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS) at King Fahd University of Petroleum & Minerals (KFUPM) under Project No. INRE2321.
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Reddy, S.V.R., Premila, T.R., Reddy, C.R. et al. A New Variational Mode Decomposition-Based Passive Islanding Detection Strategy for Hybrid Distributed Renewable Generations. Arab J Sci Eng 48, 15435–15443 (2023). https://doi.org/10.1007/s13369-023-08103-1
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DOI: https://doi.org/10.1007/s13369-023-08103-1