A measurement-based STVSI decomposes voltage trajectories via EMD and applies entropy on Lyapunov exponents to detect and grade short-term voltage instability from OEL activation or oscillations, validated on Nordic system simulations.
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The paper introduces EVRVI, an EMD-enhanced entropy-based index that outperforms traditional measures in identifying voltage recovery violations on the Nordic power system across 245k scenarios.
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Novel Data-Driven Indices for Early Detection and Quantification of Short-Term Voltage Instability from Voltage Trajectories
A measurement-based STVSI decomposes voltage trajectories via EMD and applies entropy on Lyapunov exponents to detect and grade short-term voltage instability from OEL activation or oscillations, validated on Nordic system simulations.
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Enhanced Entropy-Based Metric for Characterization of Delayed Voltage Recovery
The paper introduces EVRVI, an EMD-enhanced entropy-based index that outperforms traditional measures in identifying voltage recovery violations on the Nordic power system across 245k scenarios.