Abstract
This paper introduces a new method for rapidly detecting individual modal deterioration within the post-disturbance oscillations in large multi-modal power systems. Any “sudden change” of individual modes is detected via the cross-correlation of the whitened power spectral density of the observed signal with a reference derived from the mode of interest. A statistical characterisation of a mode’s test statistic is used to establish thresholds for detection of individual mode changes.
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More From: Australian Journal of Electrical and Electronics Engineering
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